OPERATION AND PARTS MANUAL
SERIES
MODEL C-30HDG
CONCRETE PUMP
(ZENITH 416 GASOLINE ENGINE)
Revision #4 (03/22/10)
To find the latest revision of this
publication, visit our website at:
www.multiquip.com
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
C-30HDG PUMP — PROPOSITION 65 WARNING
PAGE 2 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — SILICOSIS/RESPIRATORY WARNINGS
WARNING
WARNING
SILICOSIS WARNING
RESPIRATORY HAZARDS
Grinding/cutting/drilling of masonry, concrete, metal and
other materials with silica in their composition may give
off dust or mists containing crystalline silica. Silica is a
basic component of sand, quartz, brick clay, granite and
numerous other minerals and rocks. Repeated and/or
substantial inhalation of airborne crystalline silica can
cause serious or fatal respiratory diseases, including
silicosis. In addition, California and some other
authorities have listed respirable crystalline silica as a
substance known to cause cancer. When cutting such
materials, always follow the respiratory precautions
mentioned above.
Grinding/cutting/drilling of masonry, concrete, metal and
other materials can generate dust, mists and fumes
containing chemicals known to cause serious or fatal
injury or illness, such as respiratory disease, cancer,
birth defects or other reproductive harm. If you are
unfamiliar with the risks associated with the particular
process and/or material being cut or the composition of
the tool being used, review the material safety data
sheet and/or consult your employer, the material
manufacturer/supplier, governmental agencies such as
OSHA and NIOSH and other sources on hazardous
materials. California and some other authorities, for
instance, have published lists of substances known to
cause cancer, reproductive toxicity, or other harmful
effects.
Control dust, mist and fumes at the source where
possible. In this regard use good work practices and
follow the recommendations of the manufacturers or
suppliers, OSHA/NIOSH, and occupational and trade
associations. Water should be used for dust
suppression when wet cutting is feasible. When the
hazards from inhalation of dust, mists and fumes cannot
be eliminated, the operator and any bystanders should
always wear a respirator approved by NIOSH/MSHA for
the materials being used.
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 3
TABLE OF CONTENTS
MAYCO C-30HDG (ZENITH)
CONCRETE PUMP
COMPONENT DRAWINGS
Nameplate and Decals....................................... 70-71
Compensator Piston Rod Assembly .................. 72-73
Connecting Rod - Drive Side Assembly ............. 74-75
Rocker Assembly ............................................... 76-77
Countershaft Assembly ...................................... 78-79
Crankshaft Assembly ......................................... 80-81
Manifold Assembly ............................................. 82-83
Frame Assembly ................................................ 84-85
Axle Assembly .................................................... 86-87
Muffler, Air filter And Stop Switch Assembly ...... 88-89
Clutch Assy ........................................................ 90-91
Engine Mounting Brackets Assembly ................ 92-93
Radiator, Mounting Bracket And Hoses Assy .... 94-95
Control Box Assembly ........................................ 96-97
Battery Assembly ............................................... 98-99
Fuel Tank Assembly ....................................... 100-101
Hopper Assy................................................... 102-103
Hood Assembly .............................................. 104-105
Lubrication Panel Assembly ........................... 106-107
Remote Control Cable Assembly ................... 107-108
Proposition 65 Warning ..............................................2
Silicosis/Respiratory Warnings ...................................3
Table of Contents .......................................................4
Parts Ordering Procedures ........................................5
Pump Specifications ...................................................6
Engine Specifications .................................................6
Pump Dimensions ......................................................7
Safety Message Alert Symbols .............................. 8-9
Rules For Safe Operation .................................. 10-12
Towing Guidelines .............................................. 14-15
Trailer Safety Guidelines .................................... 16-18
Operation And Safety Decals ...................................20
Important Hand Signals ...........................................21
Pump Components ............................................ 22-23
Control Box Components .........................................24
Engine Components ................................................25
General Information .................................................26
How It Works ...................................................... 27-28
Operating Information ........................................ 29-33
Inspection ........................................................... 34-36
Startup ............................................................... 36-37 Terms and Conditions Of Sale — Parts .................109
Shutdown Procedures..............................................37 Mayco Pump Warranty ...........................................110
Maintenance (Pump) ......................................... 38-47
Engine Troubleshooting...................................... 48-49
Engine Fault Codes ............................................. 50-53
Wiring Diagram (Zenith Wiring Harness) ........... 54-55
Wiring Diagram ........................................................56
Pin Connections ......................................................57
Wiring Diagram (Tail Lights) .....................................58
Appendix —
Slump Test Procedure ........................................60
Concrete Mix Information ............................. 61-63
Recommended Shotcrete System ............... 64-65
Recommended Shotcrete Accessories........ 66-67
Explanation of Codes in Remarks Column ..............68
Suggested Spare Parts ............................................69
Specification and part number are subject
to change without notice.
PAGE 4 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — PUMP SPECIFICATIONS
Table 1. C-30HDG Pump Specifications
Pump Type
Reciprocating Piston
Pumping Rate
Up to 25 cu. yds. per hour*
Vertical Pumping Height
Up to 150 ft. (45.73 m)
Horizontal Pumping Distance
400 - 500 ft. (122 - 152 m)*
Max. Concrete Piston Face Pressure
500 PSI
Maximum Aggregate Size
1/2 in. minus (12.7 mm)
Hopper Capacity
6 cu. ft. etc.
2" or 2-1/2"
Material Hose
(50.8 or 63.5 mm)"
Weight
2,950 lbs. (1,338 Kg)
Lube oil Box
7 Gallons (26.5 Liters)
Remote Control
125 ft. cable Standard
7.35" x 14"
Tire Size
(187 x 356 mm)
* Volume output will vary depending on mix design, slump, line size used
and job site conditions.
TABLE 2. ENGINE SPECIFICATIONS
Engine
Model
ZENITH 416 ENGINE
Type
4 stroke, overhead valve, single cylinde
horizontal shaft gasoline engine
Bore X Stroke
2.99 x 3.23 in.
(76 x 82 mm)
Compression Ratio
10:1
Displacement
97.6 cu. (1,599 cc)
Continuous Output
61 H.P. @3600 R.P.M.
Fuel Tank Capacity
Approx. 11 U.S. Gallons (42 liters)
Fuel Type
Unleaded Gasoline
Lube Oil Capacity
3.9 qts. (3.7 liters)
Engine Speed
Full Load
2650 rpm ±100 (No Load 2750 rpm +/- 50)
(Load 2750 rpm +/- 100)
Engine Speed
Full Idle
875 r pm ±100
Air Cleaner
Air Horn Type
Engine Lubrication
SAE 10W-30 (Oil Grade)
SG or SF (Service Class)
Star ting Method
Electric Star t
Spark Plug
B4ES
Spark Plug Gap
0.8 - 0.9 in.
(0.031-0.035 mm)
Dimension (L x W x H)
20.10 x 22.50 x 25.80 in.
(509.9 x 527.5 x 654.5 mm)
Dry Net Weight
178 lbs (126.3 Kg.)
PAGE 6 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — PUMP DIMENSIONS
Figure 1. C-30HDG Concrete Pump Dimensions
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 7
C-30HDG PUMP — SAFETY MESSAGE ALERT SYMBOLS
FOR YOUR SAFETY AND THE SAFETY OF OTHERS!
Safety precautions should be followed at all times when operating
this equipment. Failure to read and understand the Safety
Messages and Operating Instructions could result in injury to
yourself and others.
This Owner's Manual has been
developed to provide complete
instructions for the safe and efficient
operation of the Mayco Model
C-30HDG Concrete Pump.
NOTE
Refer to the engine manufacturers instructions for data relative
to its safe operation.
Before using this pump, ensure that the operating individual
has read and understands all instructions in this manual.
HAZARD SYMBOLS
Potential hazards associated with operation of the pump will be
referenced with Hazard Symbols which appear throughout this
manual, and will be referenced in conjunction with Safety
Message Alert Symbols. Some examples are listed below:
WARNING - LETHAL EXHAUST GASES
Gasoline engine exhaust gases contain
poisonous carbon monoxide. This gas is
colorless and odorless, and can cause
death if inhaled. NEVER operate this
equipment in a confined area or enclosed
structure that does not provide ample free flow air.
WARNING - EXPLOSIVE FUEL
SAFETY MESSAGE ALERT SYMBOLS
The three (3) Safety Messages shown below will inform you
about potential hazards that could injure you or others.The Safety
Messages specifically address the level of exposure to the
operator, and are preceded by one of three words: DANGER,
WARNING, or CAUTION.
DANGER
You WILL be KILLED or SERIOUSLY injured if you do
not follow directions.
Gasoline is extremely flammable, and its
vapors can cause an explosion if ignited.
DO NOT start the engine near spilled fuel
or combustible fluids. DO NOT fill the fuel
tank while the engine is running or hot.
DO NOT overfill tank, since spilled fuel
could ignite if it comes into contact with hot engine parts or
sparks from the ignition system. Store fuel in approved
containers, in well-ventilated areas and away from sparks and
flames. NEVER use fuel as a cleaning agent.
WARNING - BURN HAZARDS
WARNING
You COULD be KILLED or SERIOUSLY injured if you
do not follow directions.
Engine components can generate extreme
heat. To prevent burns, DO NOT touch these
areas while the engine is running or
immediately after operations. NEVER operate
the engine with heat shields or heat guards
removed.
CAUTION
You CAN be injured if you do not follow directions
PAGE 8 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — SAFETY MESSAGE ALERT SYMBOLS
WARNING - ROTATING PARTS
NEVER operate equipment with covers,
or guards removed. Keep fingers, hands,
hair and clothing away from all moving
parts to prevent injury.
CAUTION - ACCIDENTAL STARTING
CAUTION - RESPIRATORY HAZARDS
ALWAYS wear approved respiratory
protection.
CAUTION - SIGHT AND HEARING HAZARDS
ALWAYS place the Engine ON/OFF switch
in the OFF position and remove the ignition
key when the pump is not in use.
CAUTION - OVER-SPEED CONDITIONS
NEVER tamper with the factory settings of
the engine governor or settings. Personal
injury and damage to the engine or
equipment can result if operating in speed
ranges above maximum allowable.
ALWAYS wear approved eye and
hearing protection.
CAUTION - EQUIPMENT DAMAGE MESSAGES
Other important messages are provided throughout this manual
to help prevent damage to your concrete pump, other property,
or the surrounding environment.
WARNING
DO NOT operate at pressures exceeding the rating of the
entire material delivery system.
This pump, other property, or the surrounding
environment could be damaged if you do not
follow instructions.
Use snap pins on all snap couplings.
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 9
C-30HDG PUMP — RULES FOR SAFE OPERATION
DANGER - Read This Manual!
Failure to follow instructions in this manual may lead to serious
injury or even death! This equipment is to be operated by
trained and qualified personnel only! This equipment is for
industrial use only.
The following safety guidelines should always be used when
operating the Mayco C-30HDG Concrete Pump:
General Safety
■ DO NOT operate or service this equipment
before reading this entire manual.
■ ALWAYS read, understand, and follow
procedures in Operator’s Manual before
attempting to operate equipment.
■ ALWAYS be sure the operator is familiar with proper safety
precautions and operations techniques before using pump
■ This equipment should not be operated by persons under 18
years of age.
■ ALWAYS read, understand and follow procedures in
Operator’s Manual before attempting to operate equipment.
■ ALWAYS be sure the operator is familiar with proper safety
precautions and operations techniques before using pump
■ NEVER operate this equipment without proper protective
clothing, shatterproof glasses, steel-toed boots and other
protective devices required by the job.
■ NEVER operate this equipment when not feeling
well due to fatigue, llness or taking medicine.
■ NEVER operate this equipment under the
influence of drugs or alcohol.
■ Whenever necessary, replace nameplate, operation and safety
decals when they become difficult read.
■ Manufacture does not assume responsibility for any accident
due to equipment modifications.
■ NEVER use accessories or attachments, which are not
recommended by Multiquip for this equipment. Damage to the
equipment and/or injury to user may result.
■ NEVER touch the hot exhaust manifold, muffler or cylinder.
Allow these parts to cool before servicing engine or
concrete pump.
■ High Temperatures – Allow the engine
to cool before adding fuel or performing
service and maintenance functions.
Contact with hot! components can cause
serious burns.
■ The engine section of this concrete pump requires an
adequate free flow of cooling air. NEVER operate the concrete
pump in any enclosed or narrow area where free flow of the
air is restricted. If the air flow is
restricted it will cause serious
damage to the concrete pump
or engine and may cause injury
to people. Remember the
concrete pump's engine gives
off DEADLY carbon monoxide
gas.
■ ALWAYS refuel in a well-ventilated area, away from sparks
and open flames.
■ ALWAYS use extreme caution when working with flammable
liquids. When refueling, stop the engine and allow it to cool.
DO NOT smoke around or near the machine. Fire or
explosion could result from fuel vapors, or if fuel is spilled on
a hot engine.
■ NEVER operate the concrete pump in an
explosive atmosphere or near
combustible materials. An explosion or fire
could result causing severe bodily harm
or even death.
■ Topping-off to filler port is dangerous, as it tends to spill fuel.
■ ALWAYS wear proper respiratory (mask),
hearing and eye protection equipment when
operating the concrete pump.
■ Stop the engine when leaving the concrete pump unattended.
■ DO NOT leave the pump unattended. Use chock blocks if
parking pump on a grade.
■ Maintain this equipment in a safe operating condition at all
times.
PAGE 10 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — RULES FOR SAFE OPERATION
■ CAUTION must always be observed while servicing this
pump. Rotating parts can cause injury if contacted.
■ A copy of this manual shall accompany the pump at all times.
■ ALWAYS stored the pump in a clean, dry location out of the
reach of children.
■ ALWAYS use extreme care when operating near obstructions,
on slippery surfaces, grades and side slopes.
■ DO NOT disconnect the hose couplings or nozzle while they
are under pressure. Relieve the pressure by manually
swinging the clamp arm latch handle to the first open position
at the exhaust cone outlet.
■ Unauthorized equipment modifications will void all
warranties.
■ The pump should NEVER be towed in excess of 45 MPH (or
less depending on road conditions).
■ Refer to the Engine Owner's Manual for engine technical
questions or information.
■ If hose lines are blocked for any reason, or if the lines are
kinked when starting up or during pumping cycle, the pump
pressure could straighten out the kink or force out the blockage.
This rapid surge of material could cause the lines to move or
whip in a manner that could cause injury to personnel.
■ Before start-up, check the hopper and remove all obstructions.
■ Keep all hands out of the hopper when the engine is running.
■ DO NOT operate the pump with the hood open.
■ Replace any worn or damaged pump components
immediately.
■ ALWAYS turn the engine OFF before performing must be
before performing maintenance.
■ ALWAYS make sure pump is correctly secured to the trailer.
Check all supports attaching the pump to the trailer and make
sure they are tight.
■ ALWAYS make sure that the pump's trailer is placed on solid
level ground so that it cannot slide or shift around, endangering
workers. Place blocks under the trailer's bumper to make it
level (prevents tipping), and use a chocked block underneath
the wheels to prevent rolling. Also keep the immediate area
free of bystanders.
■ DO NOT use worn out hoses or couplings; inspect daily.
■ Inspect the hose lines at all times
■ DO NOT tow the pump with the hopper full of material.
■ DO NOT tow the pump with the hoses attached.
■ NEVER disconnect any emergency or safety devices.
These devices are intended for operator safety. Disconnection
of these devices can cause severe injury, bodily harm or even
death! Disconnection of any of these devices will void all
warranties.
■ ALWAYS make sure the delivery system used, pipe hose
clamps ect., exceed the rated pressure of the pump. In addition
the pumping system should be checked for worn components
prior to start up. Use snap pins on all snap couplings.
■ Before towing, check the hitch and secure the safety chain to
the towing vehicle. Also check for proper tire pressure.
■ Tow only with a vehicle and hitch rated to tow a 2,950 lbs.
(1,338 Kg) load.
■ If pump is equipped with ball hitch coupler, use only a 2” all
steel ball rated for a minimum of 5000 lbs. Use a 1” hardened
steel pull pin, if the pump is equipped with a pin hitch.
■ ALWAYS check the machine for loosened threads or bolts
before starting.
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 11
C-30HDG PUMP — RULES FOR SAFE OPERATION
Maintenance Safety
Emergencies
■ NEVER lubricate components or attempt service on a running
machine.
■ ALWAYS know the location of the nearest fire extinguisher
and first aid kit. Know the location of the nearest telephone.
Also know the phone numbers of the nearest ambulance,
doctor and fire department. This information will be
invaluable in the case of an emergency.
■ ALWAYS allow the machine a proper amount of time to cool
before servicing.
■ Keep the machinery in proper running condition.
■ Fix damage to the machine immediately and always replace
broken parts.
■ Dispose of hazardous waste properly. Examples of potentially
hazardous waste are used motor oil, fuel and fuel filters.
■ DO NOT use food or plastic containers to dispose of
hazardous waste.
■ DO NOT pour waste, oil or fuel directly onto the ground,
down a drain or into any water source.
Lifting
■ The pump has an operating weight of approximately 2,950
lbs. (1,338 Kg). Use lifting equipment capable of lifting this
weight.
PAGE 12 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
NOTES
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 13
C-30HDG PUMP — TOWING GUIDELINES
Towing Safety Precautions
CAUTION - Local Towing Regulations
Check with your county or state safety towing regulations
department before towing your concrete pump.
To reduce the possibility of an accident while transporting the
pump on public roads, always make sure that the trailer and the
towing vehicle are in good operating condition and both units
are mechanically sound.
The following list of suggestions should be used when towing
the pump:
■ Make sure that the hitch and coupling of the towing vehicle
are rated equal to, or greater than the trailer "gross vehicle
weight rating" (GVWR).
■ ALWAYS inspect the hitch and coupling for wear. NEVER
tow the light tower's trailer with defective hitches, couplings,
chains etc.
■ CHECK the tire air pressure on both the towing vehicle and
the trailer. Also check the tire tread wear on both vehicles.
■ ALWAYS make sure the trailer section of the pump is
equipped with a "Safety Chain".
■ ALWAYS attach trailer's safety chain to frame of towing
vehicle.
■ ALWAYS make sure that the vehicle and trailer directional,
backup, brake, and trailer lights are connected properly and
are working properly.
■ Remember in most cases the maximum speed unless
otherwise posted for highway towing is 45 MPH, however
before towing your pump, check your local state, and county
vehicle towing requirements. Recommended off-road towing
is not to exceed 10 MPH or less depending on type of terrain.
■ Place chocked blocks underneath wheel to prevent rolling,
while parked.
■ Check wheel mounting lug nuts with a torque wrench.
Torque wheel lug nuts as described in the "Lug Nut Torque
Requirements", Table 5.
■ Make sure brakes are synchronized and functioning properly.
■ Check tightness of suspension hardware (nuts and bolts).
■ Avoid sudden stops and starts. This can cause skidding, or
jackknifing. Smooth, gradual starts and stops will improve
gas milage.
■ Avoid sharp turns to prevent rolling.
■ Retract wheel stand when transporting.
■ DO NOT transport pump with fuel in the fuel tank.
CAUTION - Never Use Defective Couplers
If the trailer coupler is deformed replace entire coupler. NEVER
tow the pump with a defective trailer coupler. There exist the
possibility of the trailer separating from the towing vehicle.
Pump Trailer Vehicle Connection
1. Check the vehicle hitch ball, and trailer coupler for signs of
wear or damage. Replace any parts that are worn or
damaged before towing.
2. Use only the 2-inch ball diameter with a towing capability of
5,000 lbs. (2,268 kg) as indicated on the trailer's coupler.
Use of any other ball diameter will create an extremely
dangerous condition which can result in separation of the
coupler and ball or ball failure.
3. Be sure the coupler is secured to the hitch ball and the lock
lever is down (locked).
4. Attach safety chains as shown in Figure 2. Remember to
cross the safety chains.
5. After towing for about 50 miles recheck the entire towing
system for tightness.
Recommended Maintenance
■ Depending on soil conditions and location it may be
necessary to place support blocks underneath the trailer's
bumper to prevent tipping, while parked.
1. Smear ball socket and clamp face with chassis grease.
Periodically oil pivot points and were surfaces of coupler
with SAE 30 W motor oil.
■ Inflate tires to correct pressure, inspect tires for cuts, and
excessive wear. See Table 3 (Tire Wear Troubleshooting).
2. When parking or storing the concrete pump, keep the coupler
off the ground so dirt and other debris will not build up in the
ball socket.
PAGE 14 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — TOWING GUIDELINES
Figure 2 shown below illustrates the typical towing application
that should be used when towing the pump.
Figure 2. Towing Applications
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 15
C-30HDG PUMP — TRAILER SAFETY GUIDELINES
Trailer Safety Precautions
CAUTION - General Trailer Safety
ALWAYS make sure that the trailer is in good operating condition. Check the tires for proper inflation and wear. Also check the
wheel lug nuts for proper tightness.
The following list defines the major trailer components:
1. Fuel Cell – Provides an adequate amount of fuel for the
equipment in use. Fuel cells must be empty when transporting equipment.
2. Frame Length – This measurement is from the ball hitch to
the rear bumper (reflector).
3. Frame Width – This measurement is from fender to fender.
This section is intended to provide the user with trailer service
and maintenance information. Remember periodic inspection of
the trailer will ensure safe towing of the equipment and will
prevent damage to the equipment and personal injury.
It is the purpose of this section to cover the major maintenance
components of the trailer. The following trailer components will
be discussed in this section:
■
■
■
■
Tires
Lug Nut Torquing
Suspension
Electrical
4. Jack Stand – Trailer support device with maximum pound
requirement from the tongue of the trailer.
5. Coupler – Type of hitch used on the trailer for towing.This unit
employes a 2 in. ball.
6. Tires Size – Indicates the diameter of the tire in inches (10,
12, 13, 14, etc. ), and the width in millimeters (175, 185, 205
etc.).The tire diameter must match the diameter of the tire rim.
This unit employes 7.35 x 14 in. tires.
7. Tires Ply – The tire ply (layers) number is rated in letters:
2-ply, 4-ply, 6-ply, 8-ply, 10-ply etc. This unit employes
4-ply tires.
8. Wheel Hub – The wheel hub is connected to the trailer's axle.
9. Tire Rim – Tires are mounted on a tire rim. The tire rim must
match the size of the tire.
10. Lug Nuts – Used to secure the wheel to the wheel hub.
Always use a torque wrench to tighten down the lug nuts. See
Table 5 and Figure 4 for lug nut tightening and sequence.This
unit employes 5 lug nuts to secure the wheel to the hub.
11. Axle – This trailer employes a torsion bar type suspension,
which can support 3,500 lbs.
12. Electrical – Electrical connectors (looms) are provided with
the trailer so that brake lights and turn signal lights can be
connected to the towing vehicle. See TrailerWiring Diagram
for proper wiring connections.
PAGE 16 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — TRAILER SAFETY GUIDELINES
Tires/Wheels/Lug Nuts
Tires and wheels are a very important and critical components
of the trailer. When specifying or replacing the trailer wheels it is
important the wheels, tires, and axle are properly matched.
CAUTION - General Trailer Safety
DO NOT attempt to repair or modify a wheel. DO NOT install
an inter-tube to correct a leak through the rim. If the rim is
cracked, the air pressure in the inter-tube
may cause pieces of the rim to explode
(break-off) with great force and can cause
serious eye or bodily injury.
Tires Wear/Inflation
Tire inflation pressure is the most important factor in tire life.
Pressure should be checked cold before operation. DO NOT
bleed air from tires when they are hot. Check inflation pressure
weekly during use to insure the maximum tire life and tread wear.
Table 3 (Tire Wear Troubleshooting) will help pinpoint the causes
and solutions of tire wear problems.
Torsion Bar Suspension
The torsion bar suspension and associated hardware
(Figure 3) should be visually inspected every 6,000 miles for
signs of excessive wear, elongation of bolt holes, and loosening
of fasteners. Replace all damaged parts (suspension) immediately.
ALWAYS wear safety glasses when removing or
installing force fitted parts. Failure to comply may
result in serious injury.
Figure 3. Major Suspension Components
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 17
C-30HDG PUMP — TRAILER SAFETY GUIDELINES
Lug Nut Torque Requirements
It is extremely important to apply and maintain proper wheel
mounting torque on the trailer. Be sure to use only the fasteners
matched to the cone angle of the wheel. Proper procedure for
attachment of the wheels is as follows:
1. Start all wheel lug nuts by hand.
2. Torque all lug nuts in sequence (Figure 4). DO NOT torque
the wheel lug nuts all the way down. Tighten each lug nut in
3 separate passes as defined by Table 4.
3. After first road use, retorque all lug nuts in sequence. Check
all wheel lug nuts periodically.
Table 4. Tire Torque Requirements
Wheel Size
First Pass
FT-LBS
Second Pass
FT-LBS
Third Pass
FT-LBS
12"
20-25
35-40
50-65
13"
20-25
35-40
50-65
14"
20-25
50-60
90-120
15"
20-25
50-60
90-120
16"
20-25
50-60
90-120
Figure 4. Wheel Lug Nuts Tightening Sequence
NEVER! use an pneumatic air gun to tighten
wheel lug nuts.
PAGE 18 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
NOTES
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 19
C-30HDG PUMP — OPERATION AND SAFETY DECALS
Figure 5 display's the operation and safety decals as they appear on the concrete pump, should any of these decals become
damaged or unreadable, contact the Multiquip Parts Department for a replacement set.
Figure 5. Operation and Safety Decals
PAGE 20 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — IMPORTANT HAND SIGNALS
Figure 6 display's the basic hand signals commonly used in concrete pumping operations.
Figure 6. Operation Hand Signals
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 21
C-30HDG PUMP — PUMP COMPONENTS
Figure 7. Major Pump Components
PAGE 22 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — PUMP COMPONENTS
Figure 7 illustrates the location of the major components for the
C-30HDG Concrete Pump. The function of each component is
described below:
1.
Discharge Cone – Connect 3" elbow to this discharge
port, then connect 3" x 2" reducer to elbow.
2.
Discharge Cone Safety Latch – When towing of the pump
is required, ALWAYS secure the discharge cone to latch
located on the manifold.
3.
Rear Running Lights – ALWAYS check and make sure
both the right and left running lights are functioning correctly
before towing the pump.
4.
Hopper – Concrete from a Redi-Mix truck is poured into
this hopper. The hopper can hold 6.0 cu. ft of concrete.
NEVER put hands or any other parts of you body into the
hopper.
5.
6.
Safety Grill – The safety grill should be locked at all times
when the pump is being towed. Under normal working
conditions, raise and place the safety grill on the support
hooks which are located on splash guard.
Compartment Hood – NEVER operate the pump with the
hood removed. Installed on the pump frame is a safety interlock device which prevents the engine from starting if the
hood is removed or in the up position (open).
7.
Hood Fastener – When the hood is in the down position,
secure the rubber latch to this fastener.
8.
Hood Lift Handle – Grip this handle, pull upward then
back to raise the compartment hood.
9.
Control Box – Contains the mechanical and electrical
components required to run the pump. Below is a list of
those components:
■ Throttle Control Switch
■ Pumping Control
■ Check Engine Indicator
■ Hood Open Indicator
■ Engine Hour Meter
■ Ignition Switch
■ Remote Connector
10. Radiator/Cap – Fill with a water/anti-freeze type solution
as recommended in the maintenance section of this manual.
ALWAYS make sure that the radiator is filled to the proper
operating level before starting the engine.
11. Fuel Tank/Cap – Fill with unleaded fuel. Fuel tank (cell)
holds approximately 11 gallons (42 liters). DO NOT top off
fuel. Wipe up any spilled fuel immediately
12. Tow End Jack Stand – Use this jack stand to level and
support the pump.
13. Tow Hitch Coupler – Requires a 2-inch ball hitch or a 3inch pintle. Capable of towing 5,000 lbs.
14. Safety Chain – ALWAYS attach safety chain to the towing
vehicle. NEVER! tow the pump with the safety chain
unattached.
15. Engine Safety Device – This device will return the engine
speed to idle if the compartment hood is in the UP position.
The compartment hood must be in the DOWN position for
the pump to operate at high rpm's.
16. Grease Port Console – This console allows for the remote
lubrication of components on the pump.
17. Access Door – There are four access doors on the pump.
Remove these door to gain access to drive and piston
assemblies when maintenance is required.
18. Drive Chain – Keep this chain properly lubricated and
aligned at all times. Lubricate this chain as specified in the
maintenance section of this maintenance.
19. Rubber Latch – Secure this rubber latch to the hood
fastener whenever the pump is in use or being towed.
20. Tires Ply– The tire ply (layers) number is rated in letters;
This trailer uses 4-ply tires.
21. Chock Blocks – Place these blocks (not included as part
of your concrete pump package) under each trailer wheel
to prevent rolling.
22. Pump End Jack Stand – Use this jack stand to level and
support the pump.
23. Discharge Cone Release Lever – secures the discharge
cone to the "Y" manifold; also relieves manifold pressure.
24. Documentation Box – Contains engine and pump
operation, parts and maintenance information.
25. Lubrication Box – This box is empty when shipped from
the factory. Please fill with 7 gallons ( 26.5 liters) of SAE
motor oil for first time use. Also check the dual clean-out
point on bottom of lubrication box for a secure tight fit.
26. Overflow Bottle – Fill with coolant. Maintain coolant at
proper level. See fluid level markings on side of bottle.
27. Cam Bearing – Felt ring must be peridically lubricated
applying 4 or 5 drops of 30 wt. motor oil until the felt ring is
moist.
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 23
C-30HDG PUMP — CONTROL BOX COMPONENTS
Figure 8. Pump Control Box Components
Figure 8 illustrates the location of the major components for the
C-30HDG Control Box. The function of each component is
described below:
1. Throttle Control Switch – This is a variable speed type
control. Holding the control switch to the left increases the
engine speed. To place the engine at IDLE speed, hold the
control switch to the right and let the engine run for 3-5
minutes.
2. Emergency Stop Button– In the event of an emergency or
to shutdown the engine, push RED emergency stop button
inward. This will stop the engine. To restart engine,
emergency stop button must be released from the stop
position. Simply pull back on the emergency stop button to
release.
5. Pumping Control Switch – This 3-position switch controls
the pumping of the pump. The left most position is for use
with the remote control unit, the center position is for off
(prevents pumping), and the right most position is for
normal pump operation.
6. Hourmeter– Display's the number of hours the pump has
been in use.
8. Hood Open Lamp– When lit (red) indicates that the hood
has been raised (open) during pumping operation. This
condition will force the engine into idle mode.
7. Check Engine Lamp– When lit (yellow) indicates that an
engine error as occured. See Table 7 for a listing of engine
diagnostic error codes.
3. Ignition Switch – Insert the ignition key here to start the
engine. Turn the key clockwise to the ON position, then
continue turning clockwise to the START position and
release. To stop the engine turn the key fully counterclockwise to the STOP position.
4. Remote Control Input Connector – Insert the remote
control input cable into this connector.
PAGE 24 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — ENGINE COMPONENTS
Figure 9. Zenith 416 Basic Engine Components
Figure 9 illustrates the location of the basic components for the
Zenith 416, 1.6 liter gasoline engine..The function of each
component is described below:
8.
Fan V-Belt – ALWAYS make sure that V-belt is properly
tensioned. A loose or defective V-belt can adversely affect
the performance of the pump.
1.
Air Filter – Prevents dirt and other debris from entering the
fuel system. Remove wing-nut on top of air filter cannister to
gain access to filter element. Replace with only
manufactures recommended type air filter.
9.
Crankcase Drain Plug – Remove this plug to drain engine
oil from the crankcase. Replace with recommended engine
oil as specified in the maintenance section of this manual.
2.
Fuse Connector – Contains fuses for electrical system.
replace with only recommended type fuses.
10. Cooling Fan Blades – Make sure that the blades of the
cooling fan are not bent or broken. A damaged fan blade
can cause the engine to run hot and overheat.
3.
Oil Filler Port Cap – Remove this cap to add engine oil to
the crankcase. Fill with recommended type oil as specified
in the maintenance section of this manual
11. Control Relays – Includes a main relay, fuel pump relay
and starter relay. Replace with only recommended type
relays.
4.
Spark Plug – Provides spark to the ignition system. Set
spark plug gap to 0.6 - 0.7 mm (0.028 - 0.031 inch). Clean
spark plug once a week
12. Starter Motor/Solenoid – NEVER allow concrete or any
foreign debris to come in contact with the starter motor/
solenoid.
5.
Dipstick – Remove this dipstick to determine if engine oil
is low. Maintain oil level at the "H" marking on the dipstick.
NEVER run engine with low oil.
13. Fuel Filter/Fuel Pump/Fuel Regulator – Replace or clean
the fuel filter, fuel pump or fuel regulator as specified in the
maintenance section of this manual.
6.
Alternator – Provides power to the electrical system.
Replace with only manufactures recommended type
alternator.
7.
Oil Filter – Replace this oil filter as recommended in the
maintenance section of this manual.
Operating the engine without an air filter, with a
damaged air filter, or a filter in need of replacement
will allow dirt to enter the engine, causing rapid
engine wear.
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 25
C-30HDG PUMP — GENERAL INFORMATION
The following operating principles and operating suggestions
should prove helpful in the successful operation of your concrete
pump.Your new “small line” concrete pump has been designed
to give you many years of service when operated properly. A
study of the following paragraphs is important to the successful
operation of your new Direct-flow Concrete Placer.
All concrete pumps require a high level of operator skill and
more frequent service than most of the other construction
equipment.The highly abrasive nature of concrete under pressure
makes it extremely important that expendable wear components
be inspected at regular intervals between jobs to prevent having
to replace these items during a pour.
Experience has proved that inconsistency of batched concrete
mixes and frequent moving of the line requires the operator to be
readily available at all times during pumping to stop the pump
and prevent abuse to the unit which may occur if unexpected
blockages develop.
As a general rule, the use of approximately six sacks of cement,
70% washed concrete sand and 30% #4 pea gravel per yard of
concrete will result in a pumpable mix. The ideal nature of sand
and rock in certain areas may permit you to increase the
percentage of rock or adjust the mix considerably to meet the job
requirements. When possible, you may experiment with various
mixes in your area to determine the degree of versatility of the
Direct-flow Pump.
Uniform gradation of the washed concrete sand and the 1/2”
minus aggregate along with sufficient cement content and water
are important to a successful pump operation.
A recommended pumpable mix design would be 70% sand and
30% aggregate-cement content to be a minimum of 6 sacks.
(564 lbs.)
Your local sand and rock engineers will give you
the S.S.D. weights of sand and rock required in
your local area which will yield one cubic yard per
the above recommendation.
Pump Mix Guidelines
When ordering concrete, be certain to advise the concrete supplier
that you require a “pump mix”. The Direct-flow manifold will
pump a wide variety of materials, but certain basic principles
must be followed to assure successful pumping, as follows:
Generally speaking, the washed concrete sand and #4 aggregate
(pea gravel) should conform to A.S.T.M. standards in regard to
sieve analysis. Sands in some areas are washed clean of the
#100 and #200 mesh fines, which results in separation and
jamming in the manifold while pumping under pressure.
If this condition develops, check with your concrete suppliers
engineers and get their recommendations for supplementing
the lack of the fines. The use of locally accepted ad-mixes may
be required. (For example, Pozzolith, Bentonite Clay, Plastiments,
etc.) When properly prescribed, additives form the plastic paste
sometimes necessary to hold the cement and aggregate together.
Sample Design Mix - 3000 Psi 3/8 in. Slump 4- 5 in.
Type II Cement
6.49 sack/cu. yd
611 lbs.
Sand
Sat. Surf. Dry
2000 lbs.
#4 Gravel
Sat. Surf. Dry
864 lbs.
#3 Gravel
Sat. Surf. Dry
0 lbs.
Water
48 Gallons
400 lbs.
Total Weight
3,906 lbs
Admixture WRDA-79
26 oz.
Water 7.40 gal/sack
Test laboratory data has proven in many areas that the above
mix guidelines have produced concrete rated at 3000 psi (28
day test) and upwards of 5000 psi with an increase in cement.
If jamming conditions in the pump or hose occur
for any reason at all, do not attempt to use more
power to correct the condition.
In some areas where the gradation of sand and rock is ideal and
sufficient cement is used along with admixtures, the Mayco small
line concrete pump will handle up to a 50-50 ratio of sand and
rock.
Determine the cause of jamming, correct it and resume pumping.
Trying to force material through under jammed conditions may
result in damage to the drive system, thus voiding any warranty
services.
When the mix is designed for wet gunning applications, it is
normal to increase the cement (up to 7.5 or 8 sacks) and change
the sand to rock ratio to 85% sand and 15% rock.
The Mayco concrete pump will valve efficiently when using
cellular-foam concrete mixes upwards of 70 lbs. per cubic foot
wet density. (Below 70 lbs. materials (roof decks) the valving
becomes inefficient.)
PAGE 26 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — HOW IT WORKS
The C-30HDG concrete pump has one main pumping piston
which is valved by means of two ball checks. (A inlet, and B
outlet.)
The secondary piston is used as a compensator piston to smooth
out the pulsations of a single piston action. Note: The compensator
will not start operating until material is pumped into the line and
back pressure develops.
The compensator spring, which is installed on the compensator
piston rod, deflects with each piston stroke.This “spring cushion”,
in conjunction with the cam profile, produces and uninterrupted
smooth flow of material under average pumping conditions.
The pumping cylinder (Figure 10) retracts drawing the material
past the ball (A) and filling the cylinder. The compensator piston
is pumping the material out to the nozzle and causing ball (B) to
seat preventing the material from returning to the pumping cylinder
intake.
An automatic, centrifugal clutch is installed to engage and
disengage the pumping action without stopping or starting the
engine. The centrifugal clutch is set at 1100 R.P.M. The engine
idle speed is approximately 875 R.P.M.; therefore, the clutch is
completely disengaged at idle.The throttle settings while pumping
should always maintain an engine R.P.M. high enough to prevent
the clutch from slipping and burning the clutch lining.
The return spring which is installed on the rocker arm, is installed
to eliminate shock and stress between the cam roller and the
cam weldment when the pump is in operation. If the return spring
is removed or replaced for any reason, maintain the backing
plate dimension of 3” as shown on Figure 3, to produce the
proper pre-loading of the spring for a smooth performance.
Figure 10. Pumping Cylinder
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 27
C-30HDG PUMP — HOW IT WORKS
The pumping piston (Figure 11) is forcing the material past ball (B) and out to the nozzle, also seating ball A so that the material will
not flow back to the hopper. This action also fills the compensating piston for the next stroke.
Figure 11. Pumping Pistons
Figure 12 shows the relationship between the return spring, the compensator spring and the rocker arm to maintain a smooth
performance. DO NOT tighten the bolt (Item 1) completely, the rod end must be able to move.
The return spring is installed to eliminate shock and stress between the cam roller and the cam weldment when the pump is in
operation. If the return spring is removed or replaced for any reason, maintain the backing plate dimension (3-inches) as shown to
produce proper pre-loading of the spring for a smooth performance.
Figure 12. Return Spring, Compensator Spring and
Rocker Arm Interaction
PAGE 28 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — OPERATING INFORMATION
C. If it is necessary to wait 10 minutes or more for another
load of concrete, it is wise to start the pump and pump 6
or 8 strokes every 5 minutes to prevent setting of the mix
in the system. If waiting time is excessive, it would be wise
to wash out the pump and hoses and start over when the
new truck arrives.
OPERATING SUGGESTIONS
1. A well-planned location of the pump and routing of the hose
before starting a pour may save subsequent moves throughout the job.
2. Before concrete is discharged into the hopper, it is suggested
that 3 to 4 gallons of water be sprayed into the hopper,
followed by approximately 5 gallons of a creamy cement and
water slurry (1/2 bag of cement to 5 gallons of water). This
procedure lubricates the hose and prevents separation and
blockages in the hose.
D.
E. When the pumping job requires a stiffer mix, the following method is suggested for starting:Take a water hose
with a nozzle on it and apply water with a fine spray to the
concrete as it comes down the redi-mix chute into the
pump hopper after the slurry procedure is completed and
you are ready to start pumping.
Getting the concrete to flow through the hose at the
start of the pumping cycle can be one of the most
critical operations of the pour. (Manually operate
the throttle when starting, NOT remotely)
Using this procedure will make it easier to pump through
the clean hose. Note: Once the concrete has reached the
end of the hose, do not apply any more water in this
manner as this procedure is used on the start only.
WARNING - Hose Blockage Hazard
If hoses or lines are blocked for any reason, or if the lines are
kinked when starting up or during the pumping cycle, the
pump pressure could straighten out the kink or force out the
blockage. This rapid surge of material could cause the lines to
whip or move in a manner that could cause injury to personnel.
Inspect the lines at all times to prevent the above
conditions
3. It is important that once the slurry procedure is completed,
and you have started concrete flowing through the hose, do
not stop the pour until all the slurry is pumped out and the
concrete has reached the end of the hose. The only time to
stop the pump at the start is if a blockage occurs.
4. When the pump is stopped for any reason during a pour; e.g.,
moving hose, waiting for redi-mix truck, the following suggestions are offered:
A. Leave the hopper full of concrete at the time of shutdown.
It is important not to let the redi-mix driver wash too much
water into the hopper, as this could cause separation of
the concrete in the hopper.
When pumping stiff mixes and there is waiting time
between redi-mix trucks, it is advisable to add some
water to the last hopper of material and “hand mix” to
ensure an easier start with the following load.
F. Hose sizing is very important: We strongly recommend
on harsh mixes, vertical pushes, stiff concrete, shotcrete,
long pushes, that a 2 -1/2” line be used as far as possible.
The advantages of using the 2 -1/2” line are improved
pumpability, less pumping pressure and less wear on the
pump.
5. Following the pump operation, proper wash out of all materials or “build-up” within the pump manifold and hoses will
prevent problems when starting the next job.
6.
A thorough inspection of the drive components and greasing
of all bearings after each job will ensure adequate lubrication
and service to the pump which is normally operating in wet,
gritty conditions.
Over-greasing any bearing on your Mayco pump
will not damage the bearing.
B. If the shutdown period exceeds 2 to 3 minutes, turn off
the engine so the vibration does not separate the mix in
the hopper which can cause a blockage in the manifold
when the pump is started.
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 29
C-30HDG PUMP — OPERATING INFORMATION
WARNING - Hose Blockage Hazard
If you repeatedly pull the throttle all the way out and try to force
your pump to push through blockages due to separation of
material in the hose or manifold, you will soon have
breakdowns and costly repairs which are not covered under
warranty.
If a blockage occurs, find where it is and clear it before further
pumping. DO NOT increase the engine speed to clear the
blockage. Increasing the engine speed will only compound
the problem.
WARNING - Moving The Pump On The Job Site
It will be necessary at times to move your pump from one job
site location to another. Before moving the pump, make sure to
pump the remaining concrete out of the hopper. Moving the
pump with a full hopper of concrete can cause severe damage
or breakage of the axle and axle springs, excess strain and
pressure on the hub and bearing assembly.
New Pumps
All new pumps are “water pressure tested ” at the factory before
shipment. This procedure permits a thorough inspection of the
entire drive system and valving under simulated full load conditions.
The pump owner can do the same by attaching an adaptor couple
to the end of the discharge cone; e.g., the use of a standard 2 in.
pipe cap with a 3/8 in. hole drilled in the center, screwed on to the
end of the hinged cone or reducer at the pump.
Fill the hopper with water after making sure that all sand and rock
have been removed from the manifold. Operate the pump at full
throttle and the 3/8 in. diameter hole restriction will create sufficient
back-pressure to make a thorough inspection of all moving parts.
Pumping Tips
1. The effects of heat and excessive time on concrete: Hot
concrete, commonly referred to as a hot load, is concrete that
has been in the redi-mix truck in excess of 2 to 3 hours. On a
hot day, this amount of time is even less. A brief explanation
of why heat and time affect concrete:
2. ADMIXTURES
Remixtures that are designed into the concrete mix by the
redi-mix company or an architectural engineering company.
This section lists common admixtures and a brief explanation
of their functions:
A. Pozzolith 300 – or the equivalent acts as a water
retarder and a lubricant. On a lean mix, long pushes, stiff
mixes, and vertical pushes, Pozzolith 300R helps
pumpability.
B. MBVR – air entraining, acts as a lubricant.
C. Calcium Chloride – commonly referred to as C.C., is
used as an accelerator. When pumping a load with
calcium chloride, it is recommended that you wash out
if the waiting time between delivery trucks becomes too
long.
D. Super Plasticizers – acts as an accelerator. The
concrete will look very wet after the super plasticizer is
added, but will begin to set up very fast. Wash out
immediately if you do not have a truck waiting. Super
plasticizers are used mainly on commercial jobs.
E. Red Label – acts as a water retarder and an accelerator.
Red label will be used mainly on commercial jobs.
F. Fly Ash – is used to help increase the strength of the
concrete and decrease the cement content per yard.This
is one of the most common admixtures used.
All admixtures will be shown on the redi-mix concrete ticket. Before starting the pumping job, ask the
driver of the redi-mix truck to see the concrete ticket
and note the admixtures that exist and take the
proper action.
3. When pumping long distance or pumping stiff mixes, you can
expect a drop in volume compared to shorter lines and wetter
mixes due to the change in valve efficiency or cavitation.
4. Leaking manifold seals or hose coupling gaskets which leak
water can cause separation and subsequent jamming at that
point.
5. Damaged hoses with internal restrictions can cause blockages.
Concrete starts setting by drying up through a chemical
reaction.The catalyst to this reaction is heat. When pumping
a hot load, it is important to remember that when you have to
stop pumping for any reason, add water to the concrete in the
hopper and hand mix and move concrete in the hose every
5 minutes. If the shut down time becomes too long, wash out
immediately.
PAGE 30 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — OPERATING INFORMATION
6. If a blockage occurs in a hose, “walk the hose” until you find
the point of trouble.The hose will be soft immediately past the
blockage. If this happens at the start, disconnect the hose at
the first coupling past the blockage.
Elevate the hose at that point with the blockage area hanging
down.
CAUTION - Hose Pressure Hazard
When disconnecting hoses, use extreme CAUTION! The hose
is under pressure!
Using a hammer, you can pound the down-stream edge of the
packed area until it is free to flow. Shake all of the sand and
gravel out to the end of the hose. Before reconnecting the
hose, start the pump and run a small amount of concrete out
to the end of the hose.This will assure that all of the separation
is out of the hose.
7. Clearing a Plugged Manifold
The manifold is plugged if the volume at the discharge end
of the hose stops, and the hose is soft.The drive belts will start
to slip and the engine will lugdown.
Follow steps 7A through 7J to un-plug a clogged manifold.
DANGER - Clearing A Plugged Manifold
Due to pressure build-up inside the manifold, great care must
be taken when clearing a plugged manifold.
A. STOP the pump. Switch OFF the engine.
B. DO NOT open any of the delivery system joint clamps.
C. The senior operator must warn all others to stand at
least 20 feet away from the pump and turn their heads
away from the manifold.
D. The operator must position himself/herself away from
the hinged side of the manifold.
E. Wearing safety glasses, grasp the clamp arm weldment
and carefully pull it open to the primary (safety) position.
STOP count to 20.This will allow the pressure to release.
F. After the pressure has been released, open the clamp
arm weldment and swing the hinged discharge cone
open.
H.
After the blockage has been cleared and the pump
manifold has been thoroughly flushed with water, close
the hinged discharged cone and lock into place.
I.
Before reconnecting hose to the reducer, start the engine
and pump two or three shovels of concrete through the
reducer. This will insure that all the blockage has been
cleared.
J. Shake out around 2 feet of concrete before reconnecting
hose to pump. After this is done, connect hose to pump
and resume the pumping operation.
8. Avoiding Setting of the Mix in the System
To avoid setting of the concrete mix in the system when
waiting more than 30 minutes between concrete loads, flush
the system depending on job factors (such as presence of
accelerators and job site temperature) and your particular
mix design.
Clearing a Mix from the System
If, for any reason, the mix should set up in the system, the following
procedure is suggested:
CAUTION - Hose Pressure Hazard
When disconnecting hoses, use EXTREME CAUTION! The
hose is under pressure!
1. Disconnect the hoses from the pump and wash the pump out
immediately. For example: If you had 200 ft. of system out, you
would disconnect each hose.
2. Reconnect the first hose and fill the hopper with water. DO
NOT try to push all the concrete out of all of the hose lines at
one time.
3. Clean it out by pushing water through the first hose off the
pump, then continue progressing through all the hoses, until
all the system is clean.
4. If waiting time is excessive, it would be wise to wash out the
pump and hoses and start over when the new truck arrives.
This can be avoided by being observant to the pump and
system, also taking into consideration the above factors
affecting the mix.
G. Remove blockage with a round 2-foot length of reinforcing steel rod. Flush the manifolds with water. Make sure
the (3” x 2”) reducer is clear of any blockage before
closing the discharge cone.
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 31
C-30HDG PUMP — OPERATING INFORMATION
Down-Hill Pumping
Valve Seats
Downhill pumping can be difficult on some jobs. It is suggested that
a sponge 2”x 4”x 6” be placed in the hose before the start of
pumping.Wet the sponge before placing it in the hose. Reference
the Operating Suggestions at the start of this section for slurry
procedures.
If the volume at the end of hose starts to decrease gradually and
eventually almost stops, it is quite likely that the valve seats have
had excessive wear and need replacement. Once they have
reached a certain wear point, they may “channel out” rapidly and
material will reciprocate past the ball on each stroke.
The reason for using the wet sponge is to keep the slurry from
running too far ahead of the concrete and so reducing the
possibility of separation.When the pump is stopped, the material
can flow slowly down, due to gravity, and cause the hose to
collapse.
The hollow steel ball should be replaced when it starts to show
dents or appears to be badly worn. Sand and aggregate materials
in some areas are extremely sharp and hard and therefore highly
abrasive. Under these conditions when pumping stiff mixes, or to
high elevations which cause line pressures, it will be noted that
valve components may have short wear life.
When pumping is resumed, you can expect a blockage at the point
of hose collapse.To prevent this from happening, the hose can be
“kinked off” at the discharge end when the pump is stopped to
prevent the gravity flow of the material in the hose.
The use of stiffer mixes when pumping down-hill will decrease
gravity flow of the material in the hose and will assure a smoother
operation between the cam roller bearing and cam plate. As with
any job, make sure that the hose and the couplings are in good
workable shape.
If this condition exists, it is advisable to remove the manifold only,
and inspect the lower seat at the end of each day. If it appears that
the seat is beginning to “channel out", replace before starting the
next day’s pour.
The upper valve seat can be inspected after each washout by
running your finger around lower edge of seat where the ball
makes contact.You can reach this from the inside of the hopper. Be
sure that the engine is turned off.
Vertical Pumping
Pulsation
When pumping vertically up the side of a building, above 40 feet,
we would recommend the installation of steel pipe securely
fastened at intervals as necessary to support the pipe. Ninety
degree, long radius pipe sweeps should be installed at the top and
bottom of the steel line.
A slight pulsation of the hose will always be noticeable near the
pump. Excessive pulsation of the hose near the pump is normally
due to higher than average line pressures caused by stiff, harsh
mixes, or extremely long pumping distances.
Use a 25 ft.hose, or short section, off the pump; and for the balance
of the horizontal distance to the vertical line, use steel pipe.This
type of installation has been satisfactory on many jobs being
pumped in excess of 100 feet high. Line pressures are always less
using steel pipe as compared to hose.
When pumping vertically using all hose, it is recommended not
to go higher than 50 feet with hose.The hose should be tied off at
intervals of 10 feet, if possible. Special attention should be given
when tieing the hose off at the top as the hose will have a tendency
to stretch when filled with concrete. This will increase the possibility of a blockage at the point where the hose is tied off.To avoid
this, a long radius of 90 degree elbow is recommended. The
suggested place to tie off is on the hose, under the clamp.
The use of 2 -1/2” I.D. hose in these extreme cases reduces line
pressures or the addition of slight amounts of water to the mix, if
permissible, will permit easier pumping.The use of certain pumping admixtures may help.
If excessive pulsation exists in the hose, it is advisable to use
burlap or some means of wear protection under the hose at points
where the hose may wear through the outer cover; e.g. over forms,
steel or sharp curbs.
It is strongly recommended that steel pipe be used
on ALL vertical pumping for safety and convenience.
PAGE 32 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — OPERATING INFORMATION
Cam Roller
If the cam roller does not ride on the cam profile smoothly, it may
be caused by insufficient line back-pressure; e.g., a wet mix with
only 50 feet of hose. Add more hose as necessary. It can also be
caused by cavitation or the passing of over-sized aggregates
through the valving, causing it to skip.
Snap-Joint
When using Snap-Joint couplings with gaskets to join hose, see
that they are washed clean after each job. Keeping the hose ends
clean (heavy duty) is very important for the best job setup. A thin
coat of grease on the rubber gasket or dipping both coupling and
gasket in water before coupling the hose will make for easier
installation.
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 33
C-30HDG PUMP — INSPECTION
CAUTION - General Saftey Guidelines
NEVER operate the pump in a confined
area or enclosed area structure that does
not provide ample free flow of air.
Engine Oil Check
1. To check the engine oil level, place the pump on secure
level ground with the engine stopped.
2. Remove the dipstick from its holder (Figure 13) and wipe it
clean.
ALWAYS wear approved eye and hearing
protection before operating the pump .
NEVER operate the pumps's engine with the
engine hood removed. The possibility exists
of hands , long hair , and clothing
becoming entangled with the V-belt, causing
injury and bodily harm.
NEVER place hands or feet inside the hopper. ALWAYS make
while the engine is running. ALWAYS shut-down the engine
before performing any kind of maintenance service on the
pump.
Figure 13. Engine Oil Dipstick (Removal)
3. Check the engine oil level as shown on the dipstick
(Figure 14).
Before Starting
1. Read safety instructions at the beginning of
this manual.
2. Removing any dirt and dust that might have accumulated
around the engine cooling air inlet, fuel injection system.
3. Check the air filter for dirt and dust. If air filter is dirty, replace
air filter with a new one as required.
4. Check fuel injection system for external dirt and dust. Clean
with dry compressed air.
5. Check fastening nuts and bolts for tightness.
6. Connect Battery
7. Make sure hopper is free of dirt and foreign debris (large
objects over 2-inches)
Figure 14. Engine Oil Dipstick
4. If the engine oil level is low, add oil through the engine oil filler
hole (Figure 15) with the recommended oil type (Table 3).
Maximum oil capacity is 3.9 quarts (3.7 liters).
8. Make sure radiator is filled with proper amount of anti-freeze
water solution (50/50).
9. Make sure all hose lines are in good condition and are
working properly.
Reference manufacturer engine manual for
specific servicing instructions.
Figure 15. Engine Oil Filler Hole
PAGE 34 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — INSPECTION
Lubrication Box
TABLE 5. OIL TYPE
Season
Temperature
Oil Type
Summer
25oC and greater
SAE 10W-30
Spring/Fall
10oC to 25oC
SAE 10W-30/20
Winter
0oC or Lower
SAE 10W-10
Gasoline Check
1. Remove the gasoline cap located on top of fuel tank.
2. Handle Fuel in a safety container. If the container does not
have a spout use a funnel.
3. Visually inspect to see if fuel level is low. If fuel is low,
replenish with unleaded fuel.When refueling, be sure to use
a strainer for filtration. DO NOT top-off fuel. Wipe up any
spilled fuel.
4. Pay attention to the fuel tank capacity when replenishing fuel.
Refer to the fuel tank capacity listed in Table 5.
The model C-30HDG model features a fully enclosed
lubrication box, which utilizes the "SPLASH" method of
lubrication.
Before using your new pump, 7 gallons of SAE 30 motor oil must
be added directly into the lubrication box. Visually inspect the oil
in the lubrication box by making sure the oil is at the correct
operating level as indicated by the dip stick (Figure 16).
Also reference the oil level decal (Figure 17) adjacent to the
lubrication box.
Make sure the pump is on a secure level surface
when checking the oil level inside the lubrication box.
CAUTION - Checking Lubrication Oil Levels
The oil level must be checked daily to ensure adequate oil
level and oil cleaniness.
WARNING - EXPLOSIVE FUEL
Gasoline is extremely flammable, and its
vapors can cause an explosion if ignited.
DO NOT start the engine near spilled fuel
or combustible fluids. DO NOT fill the fuel
tank while the engine is running or hot.
DO NOT overfill tank, since spilled fuel
could ignite if it comes into contact with hot engine parts or
sparks from the ignition system. Store fuel in approved
containers, in well-ventilated areas and away from sparks and
flames. NEVER use fuel as a cleaning agent.
DO NOT smoke while refueling, motor fuels are highly
flammable and can be dangerous if mishandled.
Figure 16. Lubrication Box Dipstick
Figure 17. Lubrication Box Oil Caution Decal
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 35
C-30HDG PUMP — INSPECTION/STARTUP
Checking Engine Coolant Level
1. Remove the radiator cap, and check the cooling water level
inside the radiator (Figure 18).
2. Maintain water/coolant level at top of radiator coils. Make sure
radiator overflow bottle is filled to the proper level.
Figure 19. V-Belt Deflection
Starting
CAUTION - General Saftey
Figure 18. Radiator Coolant
WARNING - Burn Hazards
DO NOT attempt to operate this concrete pump
until the Safety, General Information and
Inspection sections have been read and
understood.
1. Hold the throttle control switch fully to the RIGHT to set the
engine speed to IDLE (Figure 20).
NEVER remove the radiator cap when the
engine is HOT! Allow the engine to cool
before remove the cap.
3. Check the radiator and hoses for any signs of leakage.
4. If cooling water is dirty, flush the cooling system.
Figure 20. Throttle Control Switch
5. When using antifreeze, mix the antifreeze coolant with water.
Observe the instructions on the antifreeze container. Usually
a 50/50 mixture is a good choice.
During pumping operations, the engine speed
cannot be reduced below 1300 RPM's.
6. When replacing the radiator cap, be sure to fit it securely back
onto the radiator. If replaced loosely or incorrectly, the cooling
water will quickly evaporate, causing the engine to overheat.)
V-Belt Deflection
1. Visually inspect the V-belt for cracks, fraying, wear or oiliness.
2. Make sure V-belt does not the bottom the pulley groove.
This built in feature protects the clutch from disengaging (slipping)
during operation.
2. Place the pumping control switch (Figure 21) in the OFF
position.
3. Check theV-belt tension (Figure 19) by pushing midway through
the two pulleys.TheV-belt deflection should be between .300 to
.472 inches (8 to 12 mm).
Figure 21. Pumping Control Switch (OFF)
PAGE 36 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — STARTUP/SHUTDOWN PROCEDURES
3. Insert the ignition key into the ignition switch (Figure 22), turn
the key to the ON position, then to the START position,
release the key when the engine starts.
2. On the control box, place the pumping control switch in the
REMOTE ON position (Figure 25)
Figure 25. Pumping Control Switch (Remote)
Figure 22. Ignition Switch
3. To begin pumping, place the toggle switch on the hand-held
remote unit (Figure 24)in the pump ON position
4. Let the engine run for 3-5 minutes before putting pump into
operational use. Push the choke knob in all the way.
Radio Remote Control Operation
5. Listen for any abnormal sounds. If any mechanical or electrical problems exists, STOP the engine and correct the problem.
The MAYCO C30HDG Concrete Pump has a remote control
feature (Figure 26) that allows the pump to be radio controlled
via a receiver/transmitter technique.
6. To begin pumping concrete. Place the pumping control
switch (Figure 23) in the ON position
Contact your MAYCO representative for further information
regarding radio control pumping capability.
Figure 23. Pumping Control Switch (ON)
System Shut-Down
1. Place the pumping control switch in the OFF position
(Figure 21).
2. Let the engine run at idle speed for 3-5 minutes.
3. Turn the ignition key (Figure 22) to the OFF position.
4. Clean pump as referenced in the maintenance section of this
manual.
Remote Control Operation
Figure 26. Handheld RadioReceiver/Transmitter
1. Connect the hand-held remote control cable (Figure 24) to
the control box.
Figure 24. Handheld Remote Control Cable
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 37
C-30HDG PUMP — MAINTENANCE (PUMP)
Preventive Maintenance
General Clean-up Procedure
It is extremely important to maintain this pump due to the
highly abrasive nature of concrete material.
1. Ensure that there is no blockage in the hose and line
(Pumping Tips, step 8) or in the manifold (Pumping Tips,
step 7). If a blockage exists, clear it to ensure proper
operation the next time it is used. At the end of every pour,
or during long delays during a pour, the pump and delivery
system must be thoroughly cleaned by removing all concrete material.
1. Inspect all drive components for loose or worn bolts.
2. Drive belt/chain should be checked to remove all slack. Refer
to adjustment procedure.
3. ALWAYS carry extra “O” rings.
4. Keep entire pump clean of concrete to prevent build-up.
5. ALWAYS grease every fitting daily. Use only premium grade
grease.
Over greasing will not damage pump.
2. Proper wash out of all materials or build up within the
pump manifold and hoses following the pumping operation will prevent problems when starting the next job. After
completion of the pour, pump the remaining concrete in
the hopper through the discharge line.
To avoid the possibility of separation during cleanup, do not pump the concrete below the inlet ball in
the hopper. It is best to leave approximately 3 to 4
inches of concrete above the inlet ball.
3. Turn the pump engine off before filling the hopper with water.
Engine vibration at idle may “separate” material in the hopper,
causing jamming in manifold when pumping is resumed.
4. Fill hopper with water and resume pumping. The water will
push the concrete through the line.When the water runs clear
at the end of the hose, disconnect lines and shake out all the
sand and sediment so the lines will be clean for the next pour.
5. It is important that the hinged discharge cone on the pump
manifold be opened and all remaining concrete (rock and
sand) be thoroughly washed out. This must be done after
each job to prevent concrete build up in the discharge
manifolds and 3” discharge elbow.
PAGE 38 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — MAINTENANCE (PUMP)
Sponge Clean-out Procedure
Lubrication Box
This section will explain the recommended procedure for using
a sponge to clean out the hose lines.
The C-30HDG model features a fully enclosed lubrication box,
which utilizes the "SPLASH" method of lubrication.
CAUTION - Clearing The Pump
NEVER use muriatic acid to clear the pump. Acid will dissolve
the chrome finish on the pumping cylinder.
NEVER use compressed air to clean out the lines.
When using a clean-out hook to clean out the rear of the redimix truck, use a safety chain to secure the clean-out hook to
some solid part of the redi-mix truck to prevent the hook from
jumping off the redi-mix truck’s hopper. Run the pump at half
throttle.
1. After completion of the pour, pump the remaining concrete in
the hopper through the discharge line. Using a shovel, clean
the sides of the hopper.
The pump engine should be turned OFF, as
explained in General Clean Up Procedure.
After the sides of the hopper have been cleaned,
add a small amount of water to the remaining
concrete in the hopper and hand mix.
2. Start the pump engine and pump the hopper all the way down.
3. Disconnect the hose from the pump. Fill the hopper with water
and pump the remaining concrete out of the pump.
4. Open the hinged discharge cone and thoroughly wash out all
remaining concrete (sand-sediment) from the cone and
pump manifolds. Close the discharge cone and lock in place.
5. Take a sponge (2”x 4”x 6”) and soak it with water.Take the hose
that is disconnected from the pump and shake out the
concrete so that about 2 feet of it is clear.Insert the sponge into
the hose.
Visually inspect the oil in the lubrication box (Figure 16) by making
sure the oil is at the correct operating level as indicated by the
dip stick. Also reference the oil level decal (Figure 17) adjacent
to the lubrication box.
Make sure the pump is on a secure level surface
when checking the oil level inside the lubrication
box.
CAUTION - Checking Lubrication Oil Levels
The oil level must be checked daily to ensure adequate oil
level and oil cleaniness.
Piston Cup Wear
The rubber piston cups are a natural wear component and
will require periodic replacement. The life of the rubber cups
depends on many factors, proper oil level, oil cleanliness,
abrasiveness of aggregrate being pumped and material slump
etc.
IMPORTANT! To ensure maximum cup life, the oil
level in the lubrication box must be maintained at
the proper level. In addition the lubrication box must
be cleaned periodically.
As the rubber piston cups wear, fine cement particles will
accumulate in the bottom of the lubrication box. Once this cement
paste reaches 1-inch in height, it is recommended that the
lubrication box be drained (flushed) and cleaned and the oil
replaced with new SAE 30 motor oil.
6. Reconnect the hose to the pump. Fill the hopper with water
and resume pumping. Run the pump approximately half
throttle.The sponge will be discharged at the end of the line
followed by clear water. At this point, the pump and lines will
be completely clean and ready for the next job.
There are two clean-out ports located at the
bottom of the lubrication box.
Repeat steps 1 through 6 a few times to ensure
that the hose lines are thoroughly cleaned.
Any questions regarding the lubrication box clean-out procedure,
contact the MAYCO Service Department.
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 39
C-30HDG PUMP — MAINTENANCE (PUMP)
Crankshaft and Cam Assembly Procedure
Ball and Seat Replacement Procedure
1. Set bearing block (P/N EM14303) into hydraulic press. Place
bearing cup into bearing block and press in evenly. Bearing
cup should be aligned equally on both sides of bearing block.
1. Remove 3”x 2” reducer and 3” elbow from the pump outlet.
Remove exhaust gate andY-manifold (secondary manifold).
Check ball seat and ball stop pin for wear. If any wear is
detected, the part should be replaced. Remove T-manifold
(primary manifold). Check all parts for wear. Remove hopper
and hopper seat and inspect.
2. Set crankshaft into hydraulic press with the long end towards the top. Install spacer (P/N EM14322), O-ring (P/N
EM14326) and bearing cone (P/N EM14325) onto crankshaft. Place bearing block on crankshaft until the bearing
cone is riding in the bearing cup.
3. Insert bearing cone spacer (P/N EM14323) onto crankshaft
and inside bearing block. Install second bearing cone until it
is seated inside bearing cup.
4.
Place O-ring and spacer (P/N EM14302) on crankshaft. Set
cam weldment on top of spacer.Install crankshaft key and cam
key on cam bushing (P/N EM14301).
5. Slide cam bushing down crankshaft and align the bushing,
cam and crankshaft. Install sleeve over crankshaft and align
with hydraulic press. Install cam bushing bolts loosely. Press
bushing down onto bearing assembly. Leaving pressure on
the bushing, tighten cam bolts evenly to 40-50 foot pounds.
6. Release pressure on the bushing, reapply pressure to bushing and tighten bolts evenly to 40-50 foot pounds. Repeat
procedure 3 to 4 times.
7.
After bushing has been fitted tightly into cam, remove from
hydraulic press. Remove one bolt at a time, using Loctite,
install bolts and torque to 65-70 foot pounds. Counter sink set
screw hole and install dog point set screw and second set
screw both with LoctiteTM.
8. Place cam bearing onto crankshaft keeping bearing loose.
Make sure the eccentric lock is facing toward the
outside of the pumping unit.
9. Set crankshaft assembly into the pump box and align both
bearing assemblies with the pump box mountings.
10. After crankshaft assembly is securely fastened to the pump
box, place sprocket (P/N EM14307) onto the cam side of the
crankshaft assembly. Install bushing (P/N EM14309) into
sprocket. Align sprocket with sprocket on countershafts and
tighten bolts.
11. Install chain P/N EM14308. To adjust, loosen locknuts on
pusher bolts and tighten chain to approximately 1/2 in. slack
in the chain. Once chain is adjusted properly, tighten down
locknuts.
2. Loosen the piston nuts and remove the piston cup assembly
and cylinders. Inspect all parts for wear and replace parts with
excessive wear. Check oiler pump for proper operation.
3. Clean all parts thoroughly, removing all foreign material and
concrete slurry. Once parts are clean, install concrete cylinders. Place oiler plate O-ring in place and coat with oil. Install
small O-ring on piston rod. Run oiler line through the cylinders
and connect in the oiler fitting on the oiler plate.
4. Push oiler plate into cylinder. Install ring and felt holder, soak
felt ring in oil, then install around felt holder in cylinder. Make
sure the bronze ring is flat, then push it up flush with the ring
and felt holder.
5. Coat piston cup with oil and push it into the cylinder. Install
bushing into center of piston cup. Put small O-ring on rod,
place face plate on rod and tighten down securely. Repeat
these procedure on the opposite cylinder.
6. Thoroughly check T-manifold, ball stoppings and both steel
balls for wear. Insert an O-ring in the top flange and in the
leading edge of the manifold. Put the manifold onto the
primary side of the pump and install bolts leaving them loose.
7. CheckY-manifold for wear, install all O-rings, ball stop pin, ball
and seat. Align and install Y-manifold to T-manifold and
cylinder assembly.TightenY-manifold bolts first before tightening T-manifold bolts.After manifolds are tight, check O-rings
for slippage.
8.
Insert seat into frame hole directly above the T-manifold.The
seat orifice should fit inside the frame itself, then the seat sits
on top of the orifice. On the dura-seat, set the big end of the
seat in the frame.The seat, or the small part of the dura-seat,
fits into the bottom of the hopper.
9. After tightening the manifold bolts and inserting the seats in
place, set the hopper over the seat and align the bolt holes.
Tighten bolts, check O-ring and seat for alignment.
10. Check exhaust gate for wear, install and align gate onto
Y-manifold. Insert O-ring into exhaust gate flange and close
gate. Lock down lever and adjust clamp arm.
11. Install 3 in. elbow and 3x 2 in. reducer. Fill hopper half full and
check for leaks.
PAGE 40 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — MAINTENANCE (PUMP)
Clutch Lining Replacement
(For P/N EM14320 Clutch Assembly Only)
The normal lining thickness measures 3/16 of an inch. If the
clutch starts to slip or make an usual noise, it may be necessary
to replace the lining. Please note that the lining retaining rivets
should not be exposed to the rotating weight.
The following procedure will assist you in replacing the lining.
1. Remove worn out lining and rivets. Check clutch springs and
flyweights for wear.
2.
Cut 1/8 in. off of each end of clutch lining. Slide lining into
place. Insert one rivet into clutch lining hole. (Make sure rivet
goes from inside out.) Wedge a flathead screwdriver between
clutch flyweight and rivet head.
3.
Adjust screwdriver so that the rivet sticks out from the clutch
housing approximately 1/8 of an inch.With a flat punch, pen
the ends on the rivet so that it locks in place with the clutch
housing. Repeat this procedure for all remaining clutch rivets.
The clutch lining is a normal maintenance item
and will require periodic replacement.
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 41
C-30HDG PUMP — MAINTENANCE (PUMP)
Bearing Installation
1. Install the bearing components on the crankshaft making full
contact with the back side of the crank disc as indicated the
symbol #. See Figure 24 below.
2. Install the bushing in the cam weldment and slide it onto the
crankshaft until contact is made with the bearing spacer.
It is important that the Bearing Assembly is
installed properly.
3. Tighten the 3 allen head bolts “A” while exerting pressure
on the bushing towards the bearing spacer.
Figure 24. Bearing/Cam Bushing Installation
PAGE 42 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — MAINTENANCE (PUMP)
3.
1. After the bearing assembly has been is installed , remove the
three “dog type” allen head set screws (B) to allow detents to
be drilled. See Figure 25 below.
If this procedure is not followed closely the heavy loading
of the bearing during pumping operation causes the
Timken™ cone bearings to create lateral forces which will
move the taper bushing and allow the Timken™ cone
bearings to separate from the race and subsequently fail.
The detent holes will prevent the bushing from
sliding away from the bearing spacer when the
pump is under load.
Position the ‘O’ ring on the O.D. of the bearing
spacer during assembly to assure proper bearing
adjustment.
2. Use a 9/32” drill to “detent” half (minimum 1/8” deep). Then
“chase” the threads with a 3/8-16 bottom tap and blow out the
chips after drilling, to be certain that the “dog type” allen set
screws bottom in the detents to prevent the taper bushing from
sliding laterally.
4. Drill (detent) the shaft under the allen set screws “B” to prevent
the bushing from the sliding away from the bearing spacer
when the pump is under a load.
Detent Hole (3) Installation
Figure 25. Detent Holes
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 43
C-30HDG PUMP — MAINTENANCE (PUMP)
Figure 26. V-Belt and Drive Chain Adjustment
V-Belt And Drive Chain Adjustment
1. Loosen the pillow bearing bolts (Figure 26) only to the point
where the bolts will remain snug.
2
Unlock the two pusher bolt lock nuts.
3. Turn each pusher bolt clockwise an equal amount until the
chain is to proper adjustment of approximately 3/8 to 1/2 in.
slack in the chain. It is very important that the pulley side and
the chain side (pillow block bearings) are within 1/16” of an
equal distance.
4. This distance can be checked by using a tape measure or a
straight edge ruler, measuring from the inside of the pusher
bolt bracket to the face of the pillow block bearing.
7. Drive belts should be regularly adjusted to prevent slippage.
To adjust the belts, loosen the engine mounting bolts and
move the engine until there is a maximum 3/4 in. deflection
in the belts, retighten the engine mounting bolts.
8. Frequent inspections should be made on all drive components to make certain that all bolts and nuts remain tight.
Prior to adjusting the chain, place the lobe of the
cam in the down position. The chain should have
83 rivets, Including one each, half-link and full link.
5. The drive chain should be adjusted regularly to remove all
slack. Once all slack is removed, DO NOT over-adjust, as this
will overload the shaft bearings. A slack chain on the crank
drive creates backlash and shock loads on the shafts and
bearings which results in shorter wear/life of the drive components.
6. Lubricate the chain regularly. Note-it is advisable to carry a
spare chain and master links for replacement in the field if
necessary.
PAGE 44 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — MAINTENANCE (PUMP)
Roller Chain Application
Installation and Drive Alignment
A properly selected, installed and maintained drive chain
(Figure 27) is an extremely versatile means of power transmission.
It is possible, however, to greatly reduce a chain’s life and even
induce failure if the chain is abused through improper installation,
operating or maintenance procedures. In certain applications,
failure can lead to personal injury or property damage.
Chain and sprockets (Figure 28) must be installed correctly.
Sprockets must be properly aligned and sprocket shafts must be
parallel so the drive will run in a plane perpendicular to them.
Axial alignment should be checked with a straight edge which
will extend across the finished sides of the sprockets.They should
be true-running with minimum wobble and eccentricity.The higher
the drive speed, the more important these details become.
Figure 27. Drive Chain
Recommendations and comments on how to get the most from
your roller chain drive are given in this section. The drive chain
used in the MAYCO C-30HDNI pump is manufactured by the
"DIAMOND CHAIN COMPANYTM"
Working Loads
UTS-Ultimate Tensile Strength-is the one time pull required to
break the chain. For single strand chain, the load (pull) applied
to the chain in service should never exceed 1/6th of the UTS for
the chain being used except as noted below.
Figure 28. Shaft and Drive Sprocket Alignment
The chain should be installed so the slack span is properly
tensioned. To check chain tension (Figure 29), turn one sprocket
to tighten the upper span of the chain while holding the other
sprocket fixed. The lack span should have 4-6% of span length in
the mid-span movement for horizontal drives and 2-3% for
vertical drives.
It is possible to exceed the allowable working loads for a limited
number of cycles, but you should contact Diamond Chain
Company before this is considered. A roller chain should never
be loaded above 50% of UTS for even one cycle. To do so
will damage the chain structure and reduce its capacity.
The UTS or one time breaking load of multiple strand chain is
the UTS of a single strand chain times the number of strands; i.e.,
two strand chain is twice as strong as single.
When allowable working loads are considered, however, the
capacity of each strand in a multiple strand chain is only 65% of
the single strand rating; thus, three-strand chain would rate not
three times single but only 1.95 times. This is because the chain
load cannot be exactly distributed across all three strands of the
three-strand chain.
Figure 29. Drive Chain Tension
A roller chain’s capacity can be significantly reduced if it is twisted
or bent sideways in the direction of the pin axis. Exercise particular
care in alignment of hoist or other applications where loads are
suspended near personnel.
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 45
C-30HDG PUMP — MAINTENANCE (PUMP)
Drive Chain Lubrication
As a chain articulates in entering and leaving a sprocket, there is
relative movement between pin and bushing surfaces. These
surfaces wear causing chain elongation. If a lubricant film can be
maintained between the pin and bushing, the wear rate is very
slow and the chain wear life very long. Maintaining the oil film is
relatively simple at low speeds but becomes increasingly difficult
as the speed increases.
The clearance between pin and bushings is very small
(Figure 30), on the order of .003 to .005 inches. A lubricant must
be thin enough to flow into the chain. SAE 30 weight oil is about
right for room temperature. Lighter oil should be used for lower
ambients and heavier for higher operating temperatures. Grease
should not be used as it cannot penetrate chain clearances.
It is recognized that good lubrication is not possible in many
applications, so shorter wear life must be accepted in these
situations.
In general, chain wear leads to rough or unsatisfactory service
prior to actual chain breakage. Good lubrication can help to
prevent chain failure by providing protection against rust or
corrosion. Rusting can allow pits to form in the surfaces of the
chain parts causing stress concentration points. This can lead to
chain failure at relatively low loads.
Figure 30. Chain-Link Cross Section
PAGE 46 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — MAINTENANCE (PUMP)
Assembling and Disassembling Drive Chain
CAUTION - DRIVE CHAIN SAFETY
You may be seriously injured if you attempt to install the drive
chain while the pump is running. Turn OFF the engine and
lock out gears and sprockets before attempting installation.
Once installed, the drive chain must be guarded to prevent
personal injury or properly damage in the event the chain
separates during operation. NEVER run pump with drive chain
guard removed.
CAUTION - Eyesight Hazard
The components of the drive chain are hardened parts. Striking
these parts may cause metal chips to break off from the chain
or the tools used resulting in personal injury.
During all stages of chain disassembly
and assembly, wear safety glasses to
prevent metal parts or chips from entering
your eyes and have personnel in the
immediate area do likewise.
Chain-Link Pin Removal
1. If chain is of cotter pin- type construction, remove cotters.
2. If chain is riveted type construction, grind pin heads off so pin
ends are flush with the linkplate.
3. Drive pins out of linkplate using a Diamond pin extractor
Model P/N 113 or 135. Some multiple strand chains or large
pitch models will require a hammer and punch or a press to
remove the pins.
Installation Of Coversides
Diamond Chain coversides are manufactured three different ways:
■ Slip Fit
■ Modified Press Fit
■ Full Press Fit
Modified and Full Press Fits require some
patience and tools to assemble and/or disassemble.
Use vice grips, plumbers pliers or a small hammer
to drive coversides onto pins.
Installation of Spring Locks and Cotter-Pins
After coversides have been installed, install spring locks or cotters
(depending on chain design). Avoid using bent or worn cotters or
spring locks. After spring locks (or cotters) are installed, lightly
tap pin ends to position these parts snug against the coverside
for additional support.
Tips To Remember
■ Chian will break if mused or abused
■ Serious injury or property damage can result if chain is
installed incorrectly.
■ Select, install, guard and maintain chain in accordance with
equipment manufacturer and "Diamond Chain Company's
recommendations.
■ Read chain assembly instructions before attempting to install
chain on pump sprocket wheel.
■ Knowing more about how the chain is constructed may help
in assembly and disassembly. Further information may be
obtained by calling or writing Diamond Chain CompanyTM.
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 47
C-30HDG PUMP — ENGINE TROUBLESHOOTING
Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown,
please take a remedial action following the diagnosis based on the Engine Troubleshooting (Table 6) information shown below and
on the proceeding page. If the problem cannot be remedied, please leave the unit just as it is and consult our company's business
office or service plant.
TABLE 6. ENGINE TROUBLESHOOTING
SYMPTON
Engine will not star t or star t is
delayed, although engine can
be turned over.
At low temperatures engine will
n o t st a r t .
Engine fires but stops soon as
star ter is switched off.
Engine stops by itself during
normal operation.
POSSIBLE PROBLEM
SOLUTION
Speed control lever is in "STOP" position?
Set speed control lever to "START" position.
Defective fuel pump?
Replace fuel pump.
Fuel filter clogged?
Replace fuel filter and clean tank.
Faulty fuel supply line?
Replace or repair fuel line.
Compression too low?
Check piston, cylinder and valves. Adjust or
repair per engine repair manual.
Oil pressure too low?
Check engine oil pressure.
Low star ting temperature limit exceeded
Comply with cold star ting instructions and
proper oil viscosity.
Defective battery?
Charge or replace battery.
Engine oil too thick?
Refill engine crankcase with correct type of oil
for winter environment.
Defective battery?
Replace battery.
Throttle lever in STOP position?
Reposition throttle lever to RUN position.
Fuel filter blocked?
Replace fuel filter.
Fuel supply blocked?
Check the entire fuel system.
Electrical problem at fuel solenoid?
Repair using #7 wire.
Fuel tank empty?
Add fuel.
Fuel filter blocked?
Replace fuel filter.
Defective fuel pump?
Replace fuel pump.
Mechanical oil pressure shutdown sensor
stops the engine due to low oil?
Add oil. Replace low oil shutdown sensor if
necessary.
For more detail troubleshooting methods, refer to Zenith
Operation and Maintenance manual supplied with your
pump.
PAGE 48 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — ENGINE TROUBLESHOOTING
TABLE 6. ENGINE TROUBLESHOOTING (CONTINUED)
SYMPTON
Low engine power, output and
speed.
Low engine power output and
low speed, black exhaust
smoke.
POSSIBLE PROBLEM
SOLUTION
Fuel tank empty?
Replace fuel filter.
Fuel filter clogged?
Replace fuel filter.
Fuel tank venting is inadequate?
Ensure that tank is adequately vented.
Leaks at pipe unions?
Check threaded pipe unions tape and tighten
unions a required.
Engine oil level too full?
Correct engine oil level?
Air filter blocked?
Clean or replace air filter.
Incorrect valve clearances?
Adjust valves per engine specification.
Insufficient coolant?
Replenish.
Loose fan belt?
Adjust fan belt.
Worn or oiled belt?
Replace belt.
Inoperative thermostat?
Replace thermostat.
Worn water pump?
Replace water pump.
Clogged or leaky radiator?
Flush, repair or replace radiator.
Faulty radiator filler cap?
Replace radiator cap.
Air in cooling system?
Retighten each par t of cooling system.
Incorrect engine timing?
Adjust timing.
Improper governor adjustment?
Adjust governor to the specified conditions.
Overheating
For more detail troubleshooting methods, refer to Zenith
Operation and Maintenance manual supplied with your pump.
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 49
C-30HDG PUMP — ENGINE FAULT CODES
Malfunction Indicator Diagnostic System
The Mayco C-30HDG concrete pump features an engine malfunction indicator lamp found on the control box
(Figure 32). When a malfunction in the operation of the engine is detected, the orange check engine light will illuminate.
There are 2 methods of determining an engine malfunction. The
first method is to connect a computer to the test port connector,
the second method is to connect a ground wire to the
Communication Port A connector using the check engine indicator
lamp on the control box to determine the error code. The indicator
lamp will flash in sequence to indicate an error code. Use the
Diagnostic Error Code Table (Table 7) to troubleshoot the
malfunction. The second method will be discussed in this manual.
The following steps use the MAP sensor as an example so that
the user may become familiar with the troubleshooting process.
6. Connect a jumper wire between the brown/white wire (pin
A) on the com. port A connector and chassis ground. See
Figure 34.
Example:
1. Open hood and disconnect MAP sensor connector. See
Figure 31.
Figure 34. Com. Port A Connector/Jumper
7. Close hood and place ignition key in the ON position
IGNI
TION
OFF
SWIT
ON
CH
STAR
T
Figure 31. MAP Sensor Connector
2. Close hood and start engine. Let engine run for 3 to 5
minutes.
Figure 35. Ignition Key (On)
8. Observe check engine warning lamp flashing 3 consecutive
times and repeating 3 times. This 1-1-1 sequence is defined
as the leader code.
3. Verify that check engine warning lamp on the control box is
on (lit). See Figure 32.
T
H
R
O
T
T
L
E
HIGH
LOW
CHEC
ENGI K
NE
EMER
GEN
CY
STOP
HOOD
OPEN
IGNIT
ION
SWIT
OFF
CH
CHECK
ENGINE
WARNING
LAMP
ON
ENGI
NE
HOUR
S
STAR
T
PUM
PING
REMO
TE
ON
CONT
OFF
ROL
PUMP
ON
REM
OUTLOTE
ET
Figure 36. Leader Code
9. The check engine warning lamp will flash in 3 separate
bursts as shown below. This sequence of lamp flashing
represents the MIL flash error code. See Table 7 for a
complete listing of error codes. In the MAP sensor example,
the error code is 127.
Figure 32. Engine Warning Lamp
4. If the check engine warning lamp is on, stop engine. Place
ignition key in the OFF position. See Figure 33.
IGNI
TION
OFF
SWIT
ON
CH
STAR
T
PUM
PING
CO
NTR
OIgnition
L
Figure 33.
Key (Off)
5. Locate communication port A test connector as shown in
Figure 34. Remove plastic cover so that the male connector
pins are exposed.
Figure 37. MIL Flash Error Code
10. To correct MAP sensor error, remove jumper wire, reconnect
MAP sensor connector (See Figure 31) and restart engine. It
may be necessary to restart and stop the engine a few times
in order to clear the error from the check engine warning
lamp. Allow engine to run 3 to 5 minutes.
PAGE 50 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — ENGINE FAULT CODES
TABLE 7. GCP ECU FAULT CODE LIST FOR ZZP 416 ENGINE
#
Fault Description
Turns on
MIL?
Leader/Trailer Code
MIL
Flash
Code
111
1
CRANK or CAM could not synchronize during star t
Yes
216
2
Fuel Pressure low voltage
Yes
291
3
Fuel Pressure high voltage
Yes
292
4
MAP Signal open or shor ted to ground
Yes
127
5
MAP signal shor ted high
Yes
128
6
IAT signal Low/Shor ted to GND
Yes
112
7
IAT signal High/Open
Yes
113
8
ECT higher than warning threshold
Yes
116
9
ECT Sensor Low/Shor ted Input
Yes
117
10
ECT Sensor High/Open Input
Yes
118
11
TPS1 voltage lower than TPS2 voltage
Yes
121
12
Throttle Position Signal 1 low voltage
Yes
122
13
Throttle Position Signal 1 high voltage
Yes
123
14
Pre-Cat O2 Signal No Activity
Yes
134
15
Post-Cat O2 Signal No Activity
Yes
154
16
Gasoline bank 1 A/F is lean (adaptive learn)
Yes
171
17
Gasoline bank 1 A/F is rich (adaptive learn)
Yes
172
18
Gasoline Fuel Temp Low Voltage
Yes
182
19
Gasoline Fuel Temp High Voltage
Yes
183
20
LPG Fuel Temp Low Voltage
Yes
187
21
LPG Fuel Temp High Voltage
Yes
188
22
ECT higher than engine shutdown threshold
Yes
217
23
Engine Overspeed Condition
Yes
219
24
TPS1 voltage higher than TPS2 voltage
Yes
221
25
Throttle Position Signal 2 low voltage
Yes
222
26
Throttle Position Signal 2 high voltage
Yes
223
27
Injector 1 Low/Open
Yes
261
28
Injector 1 High/Shor t
Yes
262
29
Injector 2 Low/Open
Yes
264
30
Injector 2 High/Shor t
Yes
265
31
Injector 3 Low/Open
Yes
267
32
Injector 3 High/Shor t
Yes
268
33
Injector 4 Low/Open
Yes
269
34
Injector 4 High/Shor t
Yes
271
35
Knock signal excessive or erratic
Yes
326
36
Knock signal open or not present
Yes
327
37
CRANK signal noise
Yes
336
38
No CRANK signal
Yes
337
39
CAM signal noise
Yes
341
40
No CAM signal
Yes
342
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 51
C-30HDG PUMP — ENGINE FAULT CODES
TABLE 7. GCP ECU FAULT CODE LIST FOR ZZP 416 ENGINE (CONT.)
#
Fault Description
41
Fuel (LPG or NG) run-out longer than expected
Turns on
MIL?
MIL
Flash
Code
Yes
359
42
Catalyst inactive on gasoline
Yes
421
43
Engine Oil Pressure Too Low
Yes
524
44
Batter y Voltage Low
Yes
562
45
Batter y Voltage High
Yes
563
46
Microprocessor failure - FLASH
Yes
621
47
Microprocessor failure - RAM
Yes
624
48
Microprocessor failure - COP
Yes
626
49
Star ter relay coil open
Yes
615
50
Star ter relay control shor t to GND
Yes
616
51
Star ter relay coil shor t to 12V
Yes
617
52
5V Reference #1 voltage low
Yes
642
53
5V reference #1 voltage high
Yes
643
54
Malfunction Indicator Lamp open
Yes
6 51
55
5V Reference #2 voltage low
Yes
652
56
5V Reference #2 voltage high
Yes
653
57
Power relay coil open
Yes
685
58
Power relay shor t to GND
Yes
686
59
Power relay shor t to 12V
Yes
687
60
Closed-loop LPG A/F is too lean
Yes
151
61
Closed-loop LPG A/F is too rich
Yes
152
62
Closed-loop NG A/F is too lean
Yes
153
63
Closed-loop NG A/F is too rich
Yes
159
64
Closed-loop gasoline bank 1 A/F is too lean
Yes
155
65
Closed-loop gasoline bank 1 A/F is too rich
Yes
156
66
LPG Adaptive-learn A/F is too lean
Yes
161
67
LPG Adaptive-learn A/F is too rich
Yes
162
68
NG Adaptive-learn A/F is too lean
Yes
163
69
NG Adaptive-learn A/F is too rich
Yes
164
70
Catalyst inactive on LPG
Yes
165
71
EPR deliver y pressure higher than expected
Yes
371
72
EPR deliver y pressure lower than expected
Yes
372
73
EPR-ECU communications lost
Yes
173
74
EPR voltage supply high
Yes
174
75
EPR voltage supply low
Yes
175
76
EPR internal actuator fault detected
Yes
176
77
EPR internal circuitr y fault detected
Yes
177
78
EPR internal communications fault detected
Yes
178
79
AUX 5V ANALOG INPUT 4 open or high
No
515
80
AUX 5V ANALOG INPUT 4 low
No
516
81
AUX 5V ANALOG INPUT 3 open or high
Yes
517
PAGE 52 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — ENGINE FAULT CODES
TABLE 7. GCP ECU FAULT CODE LIST FOR ZZP 416 ENGINE (CONT.)
Turns on
MIL?
MIL
Flash
Code
AUX 5V ANALOG INPUT 3 low
Yes
518
83
AUX 5V ANALOG INPUT 1 high
Yes
541
84
AUX 5V ANALOG INPUT 1 low or open
Yes
542
85
AUX 5V ANALOG INPUT 2 high or open
Yes
543
86
AUX 5V ANALOG INPUT 2 low
Yes
544
87
AUX DIGITAL INPUT 1 high
Yes
551
88
AUX DIGITAL INPUT 1 low
Yes
552
#
Fault Description
82
89
AUX DIGITAL INPUT 2 high
Yes
553
90
AUX DIGITAL INPUT 2 low
Yes
554
91
AUX DIGITAL INPUT 3 high
Yes
555
92
AUX DIGITAL INPUT 3 low
Yes
556
93
AUX 5V ANALOG INPUT 5 open or high
Yes
563
94
AUX 5V ANALOG INPUT 5 low
Yes
564
95
Watchdog processor blocked outputs (RTI 1)
Yes
712
96
Microprocessor failure - RTI 2
Yes
713
97
Microprocessor failure - RTI 3
Yes
714
98
Microprocessor failure - A/D
Yes
715
99
Microprocessor failure - Interrupt
Yes
716
100
Pin 85 (AUX_PWM4) open/shor t to GND
Yes
637
101
Pin 85 (AUX_PWM4) shor t to 12V
Yes
638
102
MIL control shor t to GND
No
644
103
MIL control shor t to 12V
No
645
104
Unable to reach Lower TPS
Yes
211
105
Unable to reach higher TPS
Yes
212
106
APP1 higher than IVS
Yes
315
107
APS/IVS Conflict
Yes
321
108
APP1 signal low voltage
Yes
322
109
APP1 signal high voltage
Yes
323
110
IVS stuck at idle, APP 1/2 mismatch
Yes
332
111
IVS stuck at off-idle, APP 1/2 mismatch
Yes
331
112
APP1 lower than IVS Limit
Yes
339
113
Ignition coil A low current
Yes
411
114
Ignition coil A high current
Yes
412
115
Ignition coil B low current
Yes
421
116
Ignition coil B high current
Yes
422
117
Ignition coil C low current
Yes
431
118
Ignition coil C high current
Yes
432
119
Ignition coil D low current
Yes
441
120
Ignition coil D high current
Yes
442
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 53
C-30HDG PUMP — WIRING DIAGRAM (ZENITH WIRING HARNESS)
Figure 38. Zenith Fuel Injection System Wiring Diagram
PAGE 54 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDNI PUMP — WIRING DIAGRAM (ZENITH WIRING HARNESS)
Figure 38. Zenith Fuel Injection System Wiring Diagram (Cont.)
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 55
C-30HDG PUMP — WIRING DIAGRAM
Figure 39. Wiring Diagram
PAGE 56 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — PIN CONNECTIONS
ZPP 416, 420 & 640 CUSTOMER 16-PIN CONNECTIONS
Rev: 2 Date 02/17/2007
Connector #1 – Female
IGN. (12 VDC HOT IN RUN & CRANKING)
A
J
ACCELERATOR PEDAL POSITION B (FPP2)
ALTERNATOR CHARGING TROUBLE INDICATOR LAMP
B
K
ACCELORATOR PEDAL POSITION A (FPP1)
GASOLINE FUEL PUMP GROUND
C
L
SIGNAL GROUND 1
GASOLINE FUEL PUMP +12VDC
D
M
+5V EXT 1
STARTER REQUEST +12VDC INPUT (AUDIO CRANKING)
E
N
CAN BUS +
STARTER REQUEST +12VDC INPUT (INTERRUPT TYPE)
F
P
CAN BUS –
MALFUNCTION INDICATOR LAMP GROUND
G
R
SIGNAL GROUND 2
FUEL SELECT/AUX DIG INPUT #1
H
S
+5V EXT 2
Connector #2 – Male
ENGINE WARNING/SHUTDOWN LAMP GROUND
A
J
SPEED SELECT 2 (GOV2) INPUT
AUX PWM OUTPUT 5
B
K
SPEED SELECT 1 (GOV1) INPUT
12V CLAMPING DIODE CONNECTION FOR AUX PWM 5
C
L
AUX DIGITAL INPUT 2
TACH DRIVER
D
M
AUX DIGITAL INPUT 3
POWER GROUND
E
N
AUX PWM OUTPUT 4
AUX PWM OUTPUT 2
F
P
AUX 5V ANALOG INPUT 2 (CONFIGURABLE PULL UP/DOWN)
AUX 5V ANALOG INPUT 1 (CONFIGURABLE PULL-UP/DOWN)
G
R
AUX 5V ANALOG INPUT 4 (PULL DOWN)
AUX 5V ANALOG INPUT 3 (PULL-UP)
H
S
AUX 5V ANALOG INPUT 5 (PULL DOWN)
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 57
C-30HDG PUMP — WIRING DIAGRAM (TAIL LIGHTS)
Figure 40. Trailer Tail Lights Wiring Diagram
PAGE 58 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
NOTES
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 59
APPENDIX — C-30HDNI C-30HDNI SLUMP TEST PROCEDURE
1. To obtain a representative sample (concrete), take several
samples at three or more regular intervals throughout the
discharge of the mixer or truck. DO NOT take samples at the
beginning or end of the discharge.
2. Dampen the inside of the cone and place it on a smooth, moist,
nonabsorbent, level surface large enough to accommodate
both the slumped concrete and the slump cone. Stand on the
“foot pieces” throughout the test procedure to hold the cone
firmly in place.
3. Fill the cone 1/3 full by volume (Figure 38-A) and rod 25 times
with a 1/2” dia x 24” lg. bullet-pointed steel rod. (This is a
specific requirement which will produce non-standard results unless followed exactly.) Distribute rodding evenly over
the entire cross section of the sample.
4.
5.
Fill cone another 1/3 (Figure 38-B) which will make the cone
2/3 full by volume. Rod this second layer 25 times with the rod
penetrating into, but not through, the first layer. Distribute
rodding evenly over the entire cross section of the layer.
Figure 41-B. Slump
Test (2/3 Full)
2/3 FULL
Figure 41-C. Slump Test
(Full-Overflow)
FULL
(OVERFLOW)
Fill cone to overflowing (Figure 38-C). Rod this layer 25 times
with rod penetrating into but not through, the second layer.
Distribute rodding evenly over the entire cross section of this
layer.
6. Remove the excess concrete (Figure 38-D) from the top of the
cone, using the tamping rod as a screed.
Figure 41-D. Slump Test
(Removing Excess Concrete)
7. Lift the cone vertically (Figure 38-E) with a slow even motion.
DO NOT jar the concrete or tilt the cone during this process.
( Invert the withdrawn cone, and place it next to, but not
touching the slumped concrete.
8. Lay a straight edge (Figure 38-F) across the top of the
slumped cone. Measure the amount of slump in inches from
the bottom of the straight edge to the top of the slumped
concrete at a point over the original center of the base . The
slump operation must be complete in a maximum elapsed
time of 1-1/2 minutes. Discard the concrete. DO NOT use it in
any other tests.
Figure 41-E. Slump Test
(Cone Invert)
BULLET POINTED
STEEL ROD
1/3 FULL
1/2 DIAMETER
24 INCHES LONG
FOOT
PIECE
Figure 41-F. Slump Test
(Measurement)
Figure 41-A. Slump Test (1/3 Full)
PAGE 60 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
APPENDIX — C-30HDG CONCRETE MIX INFORMATION
The following information has been extracted from actual testing laboratory reports. The purpose of this printing is only to help
create a better understanding of the importance of uniform gradation and proportioning of materials which affect pumpability of
concrete mixes. These weights and proportions illustrate that when the sieve analysis is ideal, the sand/rock ratio can be adjusted
(65% sand 35% rock) and pumpability should be excellent.
EXAMPLE #1 (A California Test Lab. Report)
JOB: Building Foundations (Water Project)
Sacks per cu./yd.
6.5 designed for 2,500 lbs. in 28 days
Gallons per sack
7.1
Washed Sand-#200 wash
1.3
Organic matter-OK
Specific gravity (SSD)
Sand-2.58; Pea Gravel-2.60
Sieve analysis-percent passing
Material
1.5”
1”
3/4”
3/8”
#4
#8
#16
#30
#50
#100
#200
W.C. Sand
100
99.7
79.1
60.4
36.5
14.3
4.0
1.1
Pea Gravel
100
3.0
% Comb.
100
66
51
39
23
9
3
1.0
DESIGN FOR ONE YARD OF CONCRETE (SATURATED & SURFACE DRY):
Absolute volume of aggregate in one cu. yard:
17.78 cu. ft.
Specific gravity of aggregates in one cu. yard:
2.58
Weight of aggregates in one cu. yard batch:
2850 lbs.
%
BATCH
SPEC. GRAVITY
ABS. VOL.
W.C. Sand
65
1800
2.58
11.56
PEA GRAVEL
35
1000
2.60
6.22
WATER 46 gal.
1
CEMENT 6.5 sk.
611
TOTAL
27.00
ADMIXTURE:
None
SLUMP
4”
REMARKS
This mix designed for pumping
NOTE:
Due to the availability of well-graded sand as shown in the above sieve analysis,
this mix pumped very successfully.
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 61
APPENDIX — C-30HDG CONCRETE MIX INFORMATION
A.S.T.M. STANDARD SPECIFICATION FOR GRADING AGGREGATE
PAGE 62 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
APPENDIX — C-30HDG CONCRETE MIX INFORMATION
Consolidated Rock Products Co., Division of Tests
3/8” Pea Gravel STANDARD PUMP MIXES (one-half inch minus)
NOTE: All weights shown are one cubic yard with S.S.D. aggregates.
CRP Mix Number
6004 .......................... 6005
.............................6006 .......................... 6007
Design Slump (in.)
6”
(15 cm) .................6”
Cement, SACK.
7.0 ................................ 7.0 ......................................7.0 ................................ 7.0
Cement, Lbs.
658
w/Con Sand (1 lb.)
2031 (920 kg) ............ 2982
(943 kg) ................1879 (851 kg) ............ 1943 (880 kg)
Gravel #4(9.51 mm)
677
(314 kg) ................806
TOTAL AGGREGATE
2708 (1227 kg) .......... 2775
(1257 kg) .............2685 (1216 kg) .......... 2775 (1257 kg)
Pozzolight 311-1 lb.
1.4
(.63 kg) .................1.4
Water, Design (gals.)
50.0 (189 liters) ......... 53.0
(200 liters) ............50.0 (189 liters) ......... 53.9 (200 liters)
Mater, Max. (gals.)
50.0 (189 liters) ......... 53.0
(200 liters) ............53.0 (200 liters) ......... 53.0 (200 liters)
(15 cm) ............. 6”
(298 kg) ............ 658
(307 kg) ............ 693
(298 kg) ................658
(15 cm) ............. 6”
(298 kg) ............ 658
(365 kg) ............ 832
(15 cm)
(298 kg)
(377 kg)
ADMIXTURE
(.63 kg) ............. 1.4
(.63 kg) ............. —
NOTE: Multiply above kilograms and liters by 1.308 to obtain the proportions for one cubic meter of concrete.
Consolidated Rock Products Co., Division of Tests
3/8” Pea Gravel STANDARD PUMP MIXES (one-half inch minus)
NOTE: All weights shown are one cubic yard with S.S.D. aggregates.
CRP Mix Number
6000 .......................... 6001
.............................6002 .......................... 6003
Design Slump (in.)
6”
(15 cm) .................6”
Cement, SACK.
6.5 ................................ 6.5 ......................................6.5 ................................ 6.5
Cement. Lbs.
611
w/Con Sand (1.1 lb.)
2062 (934 kg) ........... 2112
(957 kg) ................1924 (872 kg) ............ 1971 (893 kg)
Gravel #4 (9.51mm)
687
(319 kg) ................825
TOTAL AGGREGATE
2749 (1245 kg) .......... 2816
(1276 kg) .............2749 (1245 kg) .......... 2816 (1276 kg)
Pozzolight 311-1.3lb.
1.3
(.59) ......................—
Water, Design (gals.)
50.0 (189 liters) ......... 53.0
(200 liters) ............50.0 (189 liters) ......... 53.9 (200 liters)
Mater, Max. (gals.)
50.0 (189 liters) ......... 53.0
(200 liters) ............53.0 (200 liters) ......... 53.0 (200 liters)
(15 cm) ............. 6”
(276 kg) ........... 611
(311 kg) ........... 704
(276 kg) ................611
(15 cm) ............. 6”
(276 kg) ............ 611
(374 kg) ............ 845
(15 cm)
(276 kg)
(383 kg)
ADMIXTURE
(.59 kg) ............. 1.3
NOTE: Multiply above kilograms and liters by 1.308 to obtain the proportions for one cubic meter of concrete.
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 63
APPENDIX — RECOMMENDED SHOTCRETE SYSTEM
RECOMMENDED SHOTCRETE SYSTEM
1-800
-30-M
10
AYCO
0
C
Y
A
M
N
HD
30
C-
1
3
2
3
1/2 STANDARD
AIR HOSE
7
AIR COMPRESSOR
(125 TO 250 CFM)
8
11
9
13 14 15
10
3/4 STANDARD
AIR HOSE
Figure 42. Shotcrete System
PAGE 64 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
APPENDIX — RECOMMENDED SHOTCRETE SYSTEM
RECOMMENDED SHOTCRETE SYSTEM
NO.
1
PART NO.
PART NAME
EM28904 ........... 3" “B” COUPLING
2
EM23946 ........... 3"-90° ELBOW
3
EM28903 ........... 2 1/2" S/J COUPLING
4
EM28005DD ...... 3"X 2 1/2 REDUCER
5
EM28061 ........... 2 1/2"X 10FT. PIPE
6
EM24849 ........... 2 1/2"X 50FT. HOSE
7
EM28001DD ...... 2 1/2"X 2" REDUCER
8
EM23815D ........ 2 1/2"X 2" REDUCER
QTY.
REMARKS
W/AIR VIBRATOR
9
EM28902 ........... 2" S/J COUPLING
10
EM23101 ........... AIR VIBRATOR
11
EM28131 ........... 2"X 2 ELBOW
12
EM24841 ........... 2"X 25 FT. HOSE
13
EM23808D ........ NOZZLE ASSEMBLY
14
EM23806 ........... 1 3/8" NOZZLE TIP
15
EM23807 ........... 1 1/4" NOZZLE TIP
General recommendations
■ If the site will permit, use steel pipe from the pump
to the pool perimeter. It will reduce line pressures
which is highly recommended.
■ The vibrator on the reducer by the pool improves
pumpability.
■ Turn both air vibrators off whenever the pump is
stopped to prevent separation of mix.
■ The air vibrators are low consumption (4.2 scfm).
■ Leave the air on at the nozzle when the pump is
stopped to prevent clogging of air the hoses in the
air insert.
■ Use item #11 (steel elbow) at the edge of the pool
to prevent collapse of the rubber hose, which can
cause blockage.
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 65
APPENDIX — RECOMMENDED SHOTCRETE ACCESSORIES
RECOMMENDED SHOTCRETE ACCESSORIES
Figure 43. Shotcrete System Accessories
Use a 1-3/8" rubber nozzle tip for a wide spray pattern. Use a 1-1/4" rubber nozzle tip for a narrow spray pattern. DO
NOT INSTALL THE NOZZLE AT THE END OF THE HOSE UNTIL THE FIRST MATERIAL HAS PASSED THROUGH
THE ENTIRE HOSE LENGTH.
Disassemble and clean the nozzle assembly thoroughly after each job. Grease all threads before re-assembly. DO
NOT close the air valve when pumping is stopped as a continued air flow keeps the air passages clean.
PAGE 66 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
APPENDIX — RECOMMENDED SHOTCRETE ACCESSORIES
RECOMMENDED SHOTCRETE ACCESSORIES
NO.
1
2
3
4
5
6
7
8
9
10
11
12
*
13
*
14
*
15
*
16
*
17
*
18
*
19
*
20
21
PART NO.
EM26107
EM231011
EM132
EM23407
EM23408
EM23411
EM912073
EM23409
EM923346
EM406
EM24841
EM24844
EM23802
EM23803
EM20816
EM23804
EM23805
EM23806
EM23807
EM911076
EM23808D
PART NAME
QTY.
REMARKS
HOPPER SCREEN
1
AIR VIBRATOR
1
BOLT, 1/2-13X2
2
AIR HOSE
1
BUSHING
1
VALVE
1
NIPPLE
2
COUPLING
1
WASHER, 1/2 LOCK
2
NUT, HEX 1/2-13
2
2"X25' RAISED HOSE
2"X50' RAISED HOSE
ADAPTER
1
GUN BODY
1
“O” RING
1
AIR INSERT
1
NOZZLE CLAMP
1
NOZZLE TIP, 1-3/8"
1
NOZZLE TIP, 1-1/4"
1
STREET ELBOW
1
AIR HOSE ..................................................... NOT SUPPLIED BY MAYCO
NOZZLE ASSEMBLY HD ................ 1 .......... INCLUDES. ITEMS W/
*
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 67
EXPLANATION OF CODE IN REMARKS COLUMN
The following section explains the different symbols and
remarks used in the Parts section of this manual. Use the
help numbers found on the back page of the manual if there
are any questions.
NOTICE
The contents and part numbers listed in the parts
section are subject to change without notice. Multiquip
does not guarantee the availability of the parts listed.
SAMPLE PARTS LIST
NO.
1
2%
2%
3
4
PART NO. PART NAME
QTY. REMARKS
12345
BOLT......................1 .....INCLUDES ITEMS W/%
WASHER, 1/4 IN............NOT SOLD SEPARATELY
12347
WASHER, 3/8 IN....1 .....MQ-45T ONLY
12348
HOSE ..................A/R ...MAKE LOCALLY
12349
BEARING ..............1 .....S/N 2345B AND ABOVE
NO. Column
QTY. Column
Numbers Used — Item quantity can be indicated by a
number, a blank entry, or A/R.
A/R (As Required) is generally used for hoses or other
parts that are sold in bulk and cut to length.
A blank entry generally indicates that the item is not sold
separately. Other entries will be clarified in the “Remarks”
Column.
REMARKS Column
Some of the most common notes found in the “Remarks”
Column are listed below. Other additional notes needed
to describe the item can also be shown.
Assembly/Kit — All items on the parts list with the
same unique symbol will be included when this item is
purchased.
Unique Symbols — All items with same unique
symbol
Indicated by:
“INCLUDES ITEMS W/(unique symbol)”
(@, #, +, %, or >) in the number column belong to the
same assembly or kit, which is indicated by a note in the
“Remarks” column.
Serial Number Break — Used to list an effective serial
number range where a particular part is used.
Duplicate Item Numbers — Duplicate numbers indicate
multiple part numbers, which are in effect for the same
general item, such as different size saw blade guards in
use or a part that has been updated on newer versions
of the same machine.
NOTICE
When ordering a part that has more than one item
number listed, check the remarks column for help in
determining the proper part to order.
PART NO. Column
Numbers Used — Part numbers can be indicated by a
number, a blank entry, or TBD.
TBD (To Be Determined) is generally used to show a
part that has not been assigned a formal part number
at the time of publication.
A blank entry generally indicates that the item is not sold
separately or is not sold by Multiquip. Other entries will
be clarified in the “Remarks” Column.
Indicated by:
“S/N XXXXX AND BELOW”
“S/N XXXX AND ABOVE”
“S/N XXXX TO S/N XXX”
Specific Model Number Use — Indicates that the part
is used only with the specific model number or model
number variant listed. It can also be used to show a
part is NOT used on a specific model or model number
variant.
Indicated by:
“XXXXX ONLY”
“NOT USED ON XXXX”
“Make/Obtain Locally” — Indicates that the part can
be purchased at any hardware shop or made out of
available items. Examples include battery cables, shims,
and certain washers and nuts.
“Not Sold Separately” — Indicates that an item cannot
be purchased as a separate item and is either part of an
assembly/kit that can be purchased, or is not available
for sale through Multiquip.
PAGE 68 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — SUGGESTED SPARE PARTS
QTY.
P/N
C-30HDG CONCRETE PUMP
C-30HDG CONCRETE PUMP
W/ ZENITH FUEL INJECTION SYSTEM
W/ ZENITH FUEL INJECTION SYSTEM
1 Units
3 Units
DESCRIPTION
6 ....... EM14904 ...................... PISTON CUP KITS
4 ....... EM18804 ...................... 4 1/2" STEEL BALL
4 ....... EM14818 ...................... 4" STEEL BALL
6 ....... EM14903 ...................... BALL STOP PIN KIT
10 ...... EM18801 ...................... 0-RING MANIFOLD
1 ....... EM14308 ...................... CHAIN
2 ....... EM26313 ...................... HALF LINK
2 ....... EM26314 ...................... MASTER LINK
1 ....... EM14334 ...................... COMPENSATOR SPRING
2 ....... EM14408 ...................... BRONZE RING
2 ....... EM903092 .................... CAM ROLLER BEARING
2 ....... EM14315 ...................... V-BELT
2 ....... EM14842 ...................... LOWER SEAT
2 ....... EM14843 ...................... UPPER SEAT
2 ....... EM26310 ...................... CLUTCH LINING
10 ...... EM18409 ...................... O-RING
2 ....... EM20763 ...................... FUEL FILTER
2 ....... EM20328TKIT ............... BEARING KIT
1 ....... EM28004DD ................. REDUCER 3" X 2"
1 ....... EM23946 ...................... 3" ELBOW
2 ....... EM28904 ...................... 3" CLAMP
4 ....... EM289041 .................... 3" GASKETS
1 ....... EM14159 ...................... HOPPER SCREEN
8 ....... 22401M7714 ................. SPARK PLUG
30 ...... EM98057A .................... "SLICK PACK"
............................................... HOSE PRIMING AGENT
QTY.
P/N
DESCRIPTION
10 ...... EM14904 ...................... PISTON CUP KITS
10 ...... EM18804 ...................... 4 1/2" STEEL
10 ...... EM14818 ...................... 4" STEEL BALL
12 ...... EM14903 ...................... BALL STOP PIN KITS
25 ...... EM18801 ...................... MANIFOLD O-RINGS
3 ....... EM14308 ...................... CHAINS
10 ...... EM26313 ...................... HALF LINK
10 ...... EM26314 ...................... MASTER LINK
2 ....... EM14334 ...................... COMPENSATOR SPRING
4 ....... EM14408 ...................... BRONZE RING
2 ....... EM903092 .................... CAM ROLLER BEARING
6 ....... EM14315 ...................... V-BELT
6 ....... EM14842 ...................... LOWER SEAT
6 ....... EM14843 ...................... UPPER SEAT
3 ....... EM26310 ...................... CLUTCH LINING
20 ...... EM18409 ...................... O-RING
6 ....... EM20763 ...................... FUEL FILTER
2 ....... EM20328TKIT ............... BEARING KIT
2 ....... EM28004DD ................. REDUCER 3" x 2"
2 ....... EM23946 ...................... 3" ELBOW
4 ....... EM28904 ...................... 3" CLAMP
10 ...... EM289041 .................... 3" GASKET
2 ....... EM14159 ...................... HOPPER SCREEN
1 ....... EM14300 ...................... CAM
1 ....... EM14801 ...................... T-MANIFOLD
1 ....... EM14819 ...................... Y-MANIFOLD
2 ....... EM14335 ...................... PISTON ROD
1 ....... EM26788 ...................... REMOTE SWITCH
1 ....... EM903176 .................... CONN. ROD BEARING
1 ....... EM14305 ...................... CRANKSHAFT
2 ....... EM14807 ...................... PUMP CYLINDER
2 ....... EM18800 ...................... COMPENSATOR CYLINDER
1 ....... EM14320 ...................... CLUTCH
60 ...... EM98057A .................... "SLICK PACK"
............................................... HOSE PRIMING AGENT
Part number on this Suggested Spare Parts List
may super cede/replace the P/N shown in the
text pages of this book.
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 69
C-30HDG PUMP — NAMEPLATE AND DECALS
PAGE 70 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — NAMEPLATE AND DECALS
NAME PLATE AND DECALS
NO
1
*
2
*
3
*
4
*
5
*
6
*
7
PART NO
DCL152
EM932
EM1028
508594
EM517019
EM513165
8
*
9
*
10
98022
34536
EM514274
PART NAME
QTY.
REMARKS
DECAL, CAUTION OIL LEVEL
1
DECAL, CAUTION, MANIFOLD
1
DECAL, MULTIQUIP MAYCO
2
DECAL, CAUTION READ MANUAL
2
DECAL, C-30HDG
2
DECAL, MAINTENANCE
1
DECAL, NAME PLATE ............................. 1 ........... CONTACT MQ PARTS DEPT. W/
............................................................................... MODEL AND SERIAL NUMBER.
DECAL, WARNING
1
DECAL, OWNER'S MANUAL
1
KIT, DECAL .............................................. 1 ........... INCLUDES ITEMS W/
*
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 71
C-30HDG PUMP — COMPENSATOR PISTON ROD ASSY.
COMPENSATOR PISTON ROD ASSY.
PAGE 72 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — COMPENSATOR PISTON ROD ASSY.
COMPENSATOR PISTON ROD ASSY.
NO.
1
1A+
2
3
4
5
6
7
8
*
9
*
10
*
11
*
12
*
13
14
15
16
17
18
19
20
21
22
23
24
25
26
26
27
28
29
30
31
32
33
34
35
PART NO.
EM14805
EM148053
EM968446
EM14332
EM14331
EM14333
EM14806
EM505490
EM903163
EM20814
EM20813
EM903162
EM20816
EM916001
EM510266
EM621
492584
EM14335
EM14336
EM505489
EM14334
EM18409
EM98032
EM14407
EM14410
EM14408
EM14411
EM98051
EM14412
EM18409
EM14413
EM18800HD
EM26525
EM968446
EM16493
EM148053
EM20328TKIT
PART NAME
QTY.
REMARKS
ROD END ................................... 1 ........... INCLUDES ITEMS W/+
BUSHING
1
NUT HEX, 3/4”-10 GR5
2
ROD SPRING GUIDE 3/4”
1
SPRING BACKING PLATE
1
SPRING RETURN
1
PISTON GUIDE ASSY.
1
FITTING
1
BEARING CUP
1
BEARING BUSHING
1
SPACER
1
BEARING CONE
2
O-RING
2
FITTING
2
SCREW, HHC 1/2-13X3
1
WASHER
2
NUT LOCK 1/2” DIA.
1
PISTON ROD
1
PISTON GUIDE
1
FITTING
1
COMPENSATOR SPRING
1
O-RING
1
PLATE, OILER
1
O-RING, OILER PLATE
1
RING & FELT HOLDER
1
BRONZE RING
1
PISTON CUP-BLACK
1
PISTON CUP-ORANGE
1
BUSHING 1 1/4 CRS
1
O-RING 1”
2
FACE PLATE
1
PUMPING CYLINDER ................ 1 ............ 2-1/2" LIP SLEEVE
O-RING, CYLINDER BOX
1
NUT HEX, 3/4-10
3
FELT RING
1
BUSHING
1
BEARING KIT ............................ 1 ............ INCLUDES ITEMS W/
*
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 73
C-30HDG PUMP — CONNECTING ROD - DRIVE SIDE ASSY.
CONNECTING ROD - DRIVE SIDE ASSY.
PAGE 74 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — CONNECTING ROD - DRIVE SIDE ASSY.
CONNECTING ROD - DRIVE SIDE ASSY.
NO.
PART NO.
PART NAME
QTY.
REMARKS
7
EM505490
FITTING
1
8
EM903163
BEARING CUP
1
*
9
BEARING BUSHING
1
* EM20814
10
EM20813
SPACER
1
* EM903162
11
BEARING CONE
2
*
12
O-RING
2
* EM20816
21
EM18409
O-RING
1
22
EM98032
PLATE, OILER
1
23
EM14407
O-RING, OILER PLATE
1
24
EM14408
BRONZE RING
1
25
EM14410
RING AND FELT HOLDER
1
26
EM14411
PISTON CUP-BLACK
1
26
EM98051
PISTON CUP-ORANGE
1
27
EM14412
BUSHING 1 1/4 CRS
1
28
EM18409
O-RING 1”
2
29
EM14413
FACE PLATE
1
30
EM14807HD
CONCRETE CYLINDER ............. 1 ............ 3-3/4 IN. LIP SLEEVE
32
EM968446
NUT HEX, 3/4-10
3
33
EM14808
PISTON ROD ASSY.
1
34
EM16493
FELT RING
1
35
EM20328TKIT
BEARING KIT ............................ 1 ............ INCLUDES ITEMS W/
*
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 75
C-30HDG PUMP — ROCKER ASSY.
ROCKER ASSY.
7
1
6
31
27
7
25
35
45
24
23
7
1
22
21
47
20
7
14
31
23 24
41
37
A
B
C
LUBRICATION
POINT
30
36
LUBRICATION
POINT
28
8
46
40
KIT
38 37
LUBRICATION
POINT
3
4
2
1
PART OF
FRAME
LUBRICATION
POINT
13
43
NOTES:
1
2
A. LONG STROKE SETTING.
HIGHER VOLUME, LOWER PSI.
B. STANDARD SETTING, NORMAL.
C. SHORT STROKE SETTING.
REDUCED VOLUME, HIGHER PSI.
SEE CRANKSHAFT ASSEMBLY
LUBRICATION
POINT
2
17
16
8
5
19
27
15
12
11
7
44
10
9
10
6
3
7
7
PAGE 76 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
25
C-30HDG PUMP — ROCKER ASSY.
ROCKER ASSY.
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
19
20%
21%
22%
23%
24%
25
27#+
28
30
31
35
36
37
38
40
41
42
PART NO.
EM503073
EM14116
EM963180
EM923350
EM14846
EM133
EM603
EM916001
EM903092
EM20347
EM402434
EM20344
EM916001
EM417
EM402456
EM607
EM20349
EM969038
EM903163
EM20814
EM20813
EM903162
EM20816
EM105
EM203262
EM20364
EM702
EM505490
EM14328
EM20338
EM20336
EM903176
EM402996
EM923348
EM503982
PART NAME
QTY.
REMARKS
SHAFT ROCKER ARM
1
JOURNAL BLOCK
1
SCREW, HHC 3/4”-10X5
2
WASHER LOCK 3/4” SPRING STEEL
2
CAM ROCKER ARM ..................................... 1......... INCLUDES ITEMS W/+
BOLT 1”-14X2” HEX HEAD
1
WASHER 1” LOCK
1
ZERK FITTING
1
BEARING ASSY.
1
BEARING SPACER
2
BEARING BUSHING
1
SPECIAL BOLT
1
ZERK FITTING
1
NUT FLEX LOCK
1
OILER FELT
2
WASHER, FLAT 5/8”
1
OILER PLUG, PLASTIC
1
NUT STOP REG. 3/4”-10
1
BEARING CUP
1
BEARING BUSHING
1
SPACER
1
BEARING CONE
2
O-RING
2
BOLT 1”-14X6” HEX HEAD
1
BRONZE BUSHING
4
CONNECTING ROD
1
SCREW ALLEN HEAD 3/8”-16X3/4”
1
ZERK FITTING
1
ROCKER ARM ASSY. ................................... 1......... INCLUDES ITEM W/#
SPACER
1
O-RING
1
BEARING
1
SEAL PLATE
1
WASHER LOCK 5/8
1
BOLT 1/2-13X5
1
43
44
45
46
47
EM98043
EM417
EM202
EM20328TKIT
EM104
FORGED CRANKSHAFT
1
NUT, LOCK 3/4"-10
2
BOLT, HEX 1-8 X 6 LG.
1
BEARING KIT ...................................................... 1 .......... INCLUDES ITEMS W/%
HHCS 5/8-11 X 2" G5
1
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 77
C-30HDG PUMP — COUNTER-SHAFT ASSY.
COUNTERSHAFT ASSY.
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
a a a a a a
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
a a a a a a
a
a
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaa
a
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
9
7
8
LUBRICATION
POINT
12
2
11
PART OF
FRAME
3
4
1
4
LUBRICATION
POINT
7
2
PART OF
FRAME
5
1
12
12
6
6
12
6
NOTES:
1
3
6
SEE CLUTCH ASSEMBLY
PAGES 84 AND 85.
21
5
2
22
6
55
MASTER
LINK
2 SEE CRANKCASE ASSEMBLY,
HALF
LINK
60
PAGES 74 AND 75,
59
PAGE 78 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
61
C-30HDG PUMP — COUNTER-SHAFT ASSY.
COUNTER-SHAFT ASSY.
NO.
1
2
3
4
5
6
7
8
9
10
11
12
21
22
55
57
58
59
60
61
PART NO.
EM513073
EM14311
EM124
EM1621
EM923346
EM968011
EM916001
EM14316
EM14314
EM14313
EM14315
EM143111
EM14318
EM14319
EM14307
EM1702
EM703
EM14308
EM26314
EM26313
PART NAME
COUNTER SHAFT
CAM BEARING
BOLT HEX 1/2 X 1-3/4
WASHER 5”
WASHER, LOCK1/2”
NUT HEX, 1/2-13
FITTING
KEY WAY 3/8”X2.5”
BUSHING, PULLEY
PULLEY
BELT, DOUBLE
SET COLLAR
SPROCKET, 13 TOOTH
BUSHING
SPROCKET 60 TEETH
SCREW ALLEN HEAD 3/8”-16X3/4”
SET SCREW 3/8”-16X3/8”
CHAIN W/MASTER LINK
LINK MASTER
HALF LINK
QTY.
1
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
REMARKS
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 79
C-30HDG PUMP — CRANKSHAFT ASSY.
CRANKSHAFT ASSY.
57
KIT
25
35
33
LUBRICATION
POINT
32
35
28
31
1
24
27
31
34
32
30
29
45 46
50
24
43
26
49
44
55
48
54
23
LUBRICATION
POINT
41
56
42
52
NOTES:
51
SEE ROCKER ARM ASSEMBLY
2
1 ITEM 43 FOR ASSOCIATED
24
46
CRANKSHAFT COMPONENTS.
SEE COUNTER-SHAFT ASSEMBLY,
2 ITEM 55
PAGE 80 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — CRANKSHAFT ASSY.
CRANKSHAFT ASSY.
NO.
23
*
24
*
25
26
27
28
29
*
30
*
31
*
32
*
33
*
34
*
35
*
38
40
41
43
*
44
*
45
*
46
*
48
*
49
*
50
*
51
52
54
55
*
56
*
57
PART NO.
EM14303
EM702
EM505490
EM129
EM492628
EM968446
EM14324
EM14323
EM14325
EM14326
EM14322
EM98043
EM14306
EM903176
EM402996
EM923348
EM14302
EM14300
EM14301
EM703
EM175
EM14304
EM916001
EM128
EM620
EM968013
EM14307
EM14309
EM98043K
PART NAME
QTY.
REMARKS
BEARING BLOCK
1
SCREW, ALLEN HEAD 3/8-16X3/4
6
ZERK FITTING
1
SCREW, HHC 3/4-10X8-1/2
2
LOCK WASHER 3/4
2
NUT HEX, 3/4-10 GR5
4
CUP BEARING
1
SPACER BEARING CONE
1
CONE BEARING
2
O-RING
2
SPACER
1
CRANKSHAFT, FORGED
1
KEY CRANKSHAFT
2
BEARING
1
SEAL PLATE
1
WASHER, LOCK 5/8"
2
SPACER, CAM BUSHING
1
CAM ASSY.
1
BUSHING, CAM
1
SCREW ALLEN HEAD 3/8-16X3/8
6
BOLT 3/8-16X1-1/4
6
BEARING-CAM COMPLETE
1
ZERK FITTING
1
BOLT 5/8-11X4” HEX HEAD
2
WASHER, SPECIAL 5/8”
2
NUT HEX 5/8-11
4
SPROCKET 60 TEETH
1
BUSHING
1
CRANKSHAFT FORGE ASSEMBLY ............ 1......... INCLUDES ITEM W/
*
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 81
C-30HDG PUMP — MANIFOLD ASSY.
MANIFOLD ASSY.
ACCESSORIES
2
14
15
13
5
6
16
12
11
3
8
17
1
24
14
11
23
4
PART OF
FRAME
7
26
27
7
9
12
28
31
7
19
21
14
13
18
7
37
38
30
27
26
PART OF
FRAME
27
7
32
32
36
33
35
34
aa
aa
aa
aa
aa
aa
a
aa
aa
aa
aa
aa
aa
a
a
a
a
a
a
a
a
aaa
aaa
aaa
aaa
aaa
aa
a
aa
a
aa
aa
aa
aa
aa
aa
a
a
a
a
a
a
aa
aa
aa
aa
aa
aa
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
aaa
aa
aa
aa
aa
aa
a
aa
aa
aa
aa
aa
aa
a
a
a
a
a
a
a
aaa
aaa
aaa
aaa
aaa
aaa
a
a
a
a
a
a
a
a
a
a
a
a
a
a
aa
aa
aa
aa
aa
aa
a
aa
aa
aa
aa
aa
aa
a
a
a
a
a
a
a
a
aa
aa
aa
aa
aa
aa
a
aaa
aa
aa
aa
aa
a
a
a
a
a
a
a
a
aa
aa
aa
aa
aa
aa
aaa
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
aa
aa
aa
aa
aa
aa
aa
aa
aa
aa
aa
aa
a
a
a
a
a
a
a
a
a
aa
aa
aa
aa
aa
a
aa
aa
aa
aa
aa
aa
a
a
a
a
a
a
a
a
a
aaa
aaa
aaa
aa
aaa
aaa
aa
aa
aa
aa
a
a
a
a
aa
aa
a
a
a
a
a
a
a
aa
aa
aa
aa
aa
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
aa
aa
aa
aa
aa
aa
aa
aa
aa
aa
aa
aa
a
a
a
a
a
a
a
a
a
aa
aa
aa
aa
aaa
aa
aaa
aaa
aaa
aaa
aaa
aaa
a
a
a
a
a
a
a
aa
aa
aa
aa
aa
aa
a
aa
aa
aa
aa
aa
aa
a
a
a
a
a
a
a
a
aa
aa
aa
aa
aa
aa
a
aa
aa
aa
aa
aa
a
a
a
a
a
a
a
a
a
a
aa
aa
aa
aa
aa
a
a
PAGE 82 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — MANIFOLD ASSY.
MANIFOLD ASSY.
NO.
1
2
3
4
5
6
7
8
9
11
12
13
14
15
16
17
18
19
21
23
24
26
27
28
30
31
32
33
34
35
36
37
38
PART NO.
EM23946
EM28004DD
EM2C0B
EM28904
EM18409
EM14843
EM18801
EM18804
EM14801
EM136
EM18409
EM618
EM968266
EM104
EM923348
EM505882
EM14842
EM14818
EM14819A
EM18409
EM618
EM137
EM619
EM968446
EM14850
EM963180
EM969038
EM14845
EM135
EM14810
EM451
EM160
EM509329
PART NAME
ELBOW 3”X90 DEG.HD
REDUCER 3X2X36 HD
BALL 2” SPONGE
COUPLING 3” HD *CF*
O-RING 1”
UPPER DURASEAT
O-RING
BALL 4-1/2”
MANIFOLD T ASSY.
PIN BALL STOP 3/4-16 x 8
O-RING
WASHER SPECIAL
NUT JAM HEX 3/4-16
BOLT 5/8-11X2” HEX HEAD
WASHER LOCK 5/8 SPRING
WASHER, 5/8
SEAT DURA LOWER
BALL 4”
MANIFOLD ASSY. EASY OPEN
O-RING
WASHER SPECIAL
TEE-BOLT 3/4-10X14”
WASHER 3/4”
NUT HEX 3/4”-10 GR5
EXHAUST GATE “H/D”
CAPSCREW 3/4-10X5 HEX HD G8
NUT STOP REG.3/4-10
ARM CLAMP
BOLT 1-1/4” -12X7” HEX HD.
SPRING
NUT 1-1/4” -12 LOCK
BOLT 3/8-16X3/4”
SCREW HHC 3/4-10X6
QTY.
1
1
2
2
4
1
6
1
1
3
4
4
4
3
3
3
1
1
1
2
2
2
2
2
1
1
2
1
1
1
1
1
1
REMARKS
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 83
C-30HDG PUMP — FRAME ASSY.
FRAME ASSY.
PAGE 84 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — FRAME ASSY.
FRAME ASSY.
NO.
1
2
3
4
5
7
8
10
11
12
13
14
15
16
17
18
19
20
21
22
23
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
PART NO.
EM513085
EM70186
EM744
EM745
EM14600A
501299
491689
EM492396
EM621
EM406
EM511418
981635
6109180
EM512251
EM512252
EM512253
EM512250
EM492309
0166 A
EM512263
EM507895
29228
EM969023
EM507658
EM509947
EM14165
EM619
EM968002
EM505121
EM969038
EM513078
10136
EM492264
EM929028
492363
EM923343
EM265361
EM26536
491010
EM513087
EM25610
PART NAME
FRAME ASSEMBLY
JACK STAND, REAR
CLEVIS PIN 1/2” X 4”
HAIR PIN C 5/8- 3/4”
AXLE, ASSEMBLY
WASHER THICK 1”
KEY COTTER 1/8 X 2
SCREW HHC 1/2- 13 X 2
WASHER .5”
NUT LOCK 1/2” DIA.
FENDER RIGHT-SIDE
BOLT, HHC 1/2- 13 X 3/4
WASHER LOCK 1/2”
COVER
COVER
COVER
COVER
SCREW, HHC
WASHER, LOCK 3/8”
ROD
PLUG, 2 1/2 NPT
HITCH, TONGUE 2"
NUT, HEX 5/8" NC
SCREW, HHC 5/8" NC 4-1/2 G5
LINK, QUICK
BOLT EYE
WASHER 3/4” WILLIAM
NUT COUPLING 3/4- 10
SCREW 3/4”- 10 X 3 GR.5
NUT STOP REG. 3/4- 10
COVER, CHASSIS BOTTOM
WASHER, FLAT 3/8
HHCS. 3/8" NC X 1"
HOOD REST, STEEL
SCREW HHC 5/16- 18 X 3/4”
WASHER LOCK 5/16”
BRACKET LIGHT
TAIL LIGHT
HOOD FASTENER, RUBBER
FENDER LEFT-SIDE
JACK STAND, FRONT
QTY.
1
1
1
1
1
2
2
4
4
4
1
6
6
1
1
1
1
16
24
1
2
1
2
2
2
2
2
2
2
2
1
8
8
2
4
4
2
2
2
1
1
REMARKS
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 85
C-30HDG PUMP — AXLE ASSY.
AXLE ASSY.
PAGE 86 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — AXLE ASSY.
AXLE ASSY.
NO.
1
2
3
*
4
*
5#
6#
7
8#
9#
10#
11#
12#
13#
14#
15#
16#
17%
18%
19
PART NO.
EM26518
EM26615A
EM26306
EM968481
EM705
EM26329
EM903113
EM903012
EM26519
EM20612
EM26300
EM903169
EM903168
EM26305
EM20601
EM14600
EM14600A
PART NAME
QTY.
REMARKS
CAP 14” CHROME
2
TIRE ASSY. ................................ 2 ........... INCLUDES ITEMS W/
*
WHEEL ....................................... 2 ........... CANNOT BE PURCHASED SEPARATELY
TIRE 14" ..................................... 2 ........... CANNOT BE PURCHASED SEPARATELY
DUST COVER
2
CASTLE NUT
2
PIN, COTTER 3/16X1 1/2
2
WASHER
2
OUTER BEARING
2
OUTER CUP
2
NUT
12
STUD
12
HUB
2
INNER CUP
2
INNER BEARING
2
GREASE SEAL
2
HUB ASSEMBLY ........................ 2 ........... INCLUDES ITEMS W/#
AXLE
1
AXLE WITH HUBS INSTALLED ..... 1 .......... INCLUDES ITEMS W/%
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 87
C-30HDG PUMP — MUFFLER, AIR FILTER, AND STOP SWITCH ASSY.
MUFFLER, AIR FILTER AND STOP SWITCH ASSY.
462
184
461
184
448
195
104
446
112
103
107
3
1
184
106
4
5
1
460
102
1
132 133 135
104
208
2
137
132
204
212
202
2
102
140
134
210
133
135
136
236
137
212
206
208 204
6
7
NOTES:
1
STOP SWITCH MOUNTING
HARDWARE IS INCLUDED
WITH ITEM 5.
2
CLAMP IS INCLUDED
WITH ITEM 1.
PAGE 88 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — MUFFLER, AIR FILTER, AND STOP SWITCH ASSY.
MUFFLER, AIR FILTER AND STOP SWITCH ASSY.
NO.
1
2
3
4
5
6
7
102
103
104
106
107
112
112
132
133
134
135
136
137
140
184
184
195
202
204
206
208
210
212
236
446
448
460
461
462
PART NO.
EM98076
EM98162
ZE1
EM491873
EM14217
ZPPC6741620
ZPPC14667
492363
2105164
EM923023
2105164
EM516995
EM513102
EM517690
EM513110
EM923057
EM98078
2101402
517293
EM968435
EM517292
EM513126
EM513126
EM516996
3019092
0166 A
EM963610
1456
492378
EM504679
EM515458
19633
12008
EM505831
EM517679
EM517687
PART NAME
QTY.
REMARKS
FILTER, AIR
1
PRECLEANER, AIR FILTER
1
ELEMENT, AIR FILTER
1
GLAND CONNECTOR
1
STOP SWITCH, ENGINE COVER
1
CATALYTIC CONVERTER ........................................ 1.......... INCLUDED W/ENGINE
GASKET................................................................... 2.......... INCLUDED W/ENGINE
BOLT, 5/16" DIA NC X 3/4" G5
3
NUT, LOCK 5/16"
1
WASHER FLAT 5/16"
3
NUT 5/16"
2
PANEL, FILTER SUPPORT
1
FLEX HOSE, AIR CLEANER 2" ............................... 1.......... JUNE 2007 AND BELOW
FLEX HOSE, AIR CLEANER 2", 29.7" .................... 1.......... JULY 2007 AND ABOVE
SHOCK MOUNT
8
WASHER 1/4"
8
CLAMP
2
WASHER SPRING 1/4"
8
MUFFLER
1
NUT HEX 1/4-20
8
EXHAUST PIPE
1
CLAMP ..................................................................... 2.......... JUNE 2007 AND BELOW
CLAMP ..................................................................... 4.......... JULY 2007 AND ABOVE
BRACKET
1
WASHER FLAT 3/8"
2
WASHER LOCK 3/8" MED
6
CAPSCREW 3/8" NC X 1-1/4" G8
2
NUT HEX FINISH 3/8-16
6
BOLT HHSC G-5
4
WASHER FLAT 3/8"
8
SUPPORT FRONT
2
BUSHING, RUBBER FUEL
1
FITTING, 90°
1
GASKET
1
SLEEVE ................................................................... 1.......... JULY 2007 AND ABOVE
HOSE, 8" .................................................................. 1.......... JULY 2007 AND ABOVE
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 89
C-30HDG PUMP — CLUTCH ASSY.
CLUTCH ASSY.
PAGE 90 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — CLUTCH ASSY.
CLUTCH ASSY.
NO.
1
*
2
*
3
*
4
*
5
*
6
*
8
*
9
*
10
*
11
*
12
*
13
14
15
16
PART NO.
492395
EM923346
EM621
EM26321
EM918050
EM26310
EM902204
EM926066
EM926053
EM508342
EM26322
0166A
EM517015
EM26348
EM14320
PART NAME
QTY.
REMARKS
SCREW, HHC 1/2- 13X1-3/4”
1
WASHER, LOCK 1/2”
1
WASHER, FLAT 1/2” SPECIAL
1
ROTOR ASSEMBLY
1
CLUTCH SPRING
2
CLUTCH LINING
1
CLUTCH BEARING
2
RETAINING RING
2
RETAINING RING
1
SCREW, HHC M8X25 PI.25
6
CLUTCH HOUSING W/LINING
1
WASHER, LOCK 3/8”
6
SHAFT STUB (FLANGE), ENGINE
1
KEY
1
CLUTCH COMPLETE ASSEMBLY ............. 1 ............. INCLUDES ITEMS W/
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 91
*
C-30HDG PUMP — ENGINE MOUNTING BRACKETS ASSY.
ENGINE MOUNTING BRACKETS ASSY.
PAGE 92 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — ENGINE MOUNTING BRACKETS ASSY.
ENGINE MOUNTING BRACKETS ASSY.
NO.
1
2
3
4
5
7
8
9
10
13
14
15
18
20
30
32
34
44
46
47
48
49
50
51
52
53
54
322
324
432
330
380
PART NO.
EM517379
EM517418
20900059
20900063
21000205
64700072
64700073
64700079
64700080
64900022
64900083
64900160
64900205
EM516977
EM516981
EM513204
6109180
6109170
6109160
492580
EM505123
EM513089
EM517487
EM506886
EM923343
EM513094
EM517024
EM517351
PART NAME
QTY.
REMARKS
SUPPORT BRACKET, RIGHT
1
SUPPORT BRACKET, LEFT
1
SPACER, 20 OD X 11 ID X 32 LONG
1
SPACER, 76 X 30 X 6.35
2
BRACKET, ECU MOUNT
1
PLAIN WASHER, 10MM
4
HELICAL SPRING LOCK WASHER, 10MM
4
PLAIN WASHER, 8MM
1
HELICAL SPRING LOCK WASHER, 8MM
1
HEX SERRATED FLANGE CAP SCREW, M8-1.25 X 20
2
HEX CAP SCREW, M10-1.25X35
2
HEX CAP SCREW, M10-1.25X30
2
HEX CAP SCREW, M8/1.25 X 60
1
ENGINE, HYUNDAI ZENITH C-30
1
BRACKET RISER
2
BOLT 1/2" NC X 5"
2
WASHER, LOCK 1/2"
6
WASHER, FLAT 1/2"
14
HEX NUT, 1/2-13
14
NUT, 1/2"
2
BOLT HEX 1/2 X 2-1/2"
2
THREADED PIECE
2
SUPPORT BRACKET, REAR
1
BOLT ...................................................................................... 2............. INCLUDED W/ENGINE
WASHER ............................................................................... 2............. INCLUDED W/ENGINE
WASHER ............................................................................... 2............. INCLUDED W/ENGINE
NUT ........................................................................................ 2............. INCLUDED W/ENGINE
BOLT M8X20
1
WASHER LOCK 5/16"
1
BOLT, 1/2" NC X 1-3/4"
4
CLUTCH GUARD
1
GUARD
1
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 93
C-30HDG PUMP — RADIATOR, MOUNTING BRACKET AND HOSES ASSY.
RADIATOR, BRACKET AND HOSES ASSY.
PAGE 94 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — RADIATOR, MOUNTING BRACKET AND HOSES ASSY.
RADIATOR, BRACKET AND HOSES ASSY.
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
PART NO.
20800072
21000161
62410120
64700072
64700073
64700098
64700126
64800164
64900002
64900026
64900035
64900083
64900174
65500001
68800001
68800018
68900360
68900359
68900361
68900362
492356
2101402
EM513116
EM514536
22000184
65500002
64700096
64900182
64800059
64900173
PART NAME
BRACKET, TOP MOUNT
BRACKET, TUBE SUPPORT
CONNECTOR, STRAIGHT 410 X 32 DIA
PLAIN WASHER, 10 MM
HELICAL SPRING LOCK WASHER, 12MM
WASHER, PLAIN 12MM X 23.7MM
HELICAL SPRING LOCK WASHER, 12MM
NUT, LOCK, FLANGE, M6-1
HEX CAP SCREW, M12-1.25 X 30
HEX SERRATED FLANGE CAP SCREW, M6-1 X 20
HEX SERRATED FLANGE CAP SCREW, M10-1.25 X 20
HEX CAP SCREW, M10-1.25 X 35
HEX SERRATED FLANGE CAP SCREW, M8-1.25 X 16
ISOLATOR, 32 X32, M8-1.25
CLAMP, HOSE, WORM-DRIVE
CLAMP, TUBE/HOSE, LOOP/OFFSET
HOSE, 20R4, DIA 32, HYUNDAI 1.6 TOP REAR
HOSE, 20R4, DIA 32, HYUNDAI 1.6 LOWER REAR
HOSE, 20R4, DIA 32, HYUNDAI 1.6 TOP FRONT
HOSE, 20R4, DIA 32, HYUNDAI 1.6 FRONT BOTTOM
BOLT, 1/4" X 3/4"
WASHER SPRING 1/4"
CLAMP 1/2"
HOSE
BRACKET, CROSS
ISOLATOR, 46.4MM, 51.21MM, 1/2-13
LARGE OD PLAIN WASHER, 1/2 X 2 X 1/8
HEX CAP SCREW, 1/2 - 13 X 2-1/2
HEX SERRATED FLANGE NUT, M10-1.5
HEX SERRATED FLANGE CAP SCREW, M10-1.5X25
QTY.
1
1
2
1
1
2
2
4
2
4
3
1
1
1
8
4
1
1
1
1
2
2
2
1
1
2
2
2
2
2
REMARKS
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 95
C-30HDG PUMP — CONTROL BOX ASSY.
CONTROL BOX ASSY.
PAGE 96 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — CONTROL BOX ASSY.
CONTROL BOX ASSY.
NO.
1
3
6
7#
8
8A
9
10
11
12
13
14
15
16
17
18
19
20
21
22%
23
PART NO.
EM517174
EM98036
EM517176
10958
EM508239
11078
EM40711
EM517184
EM26789
EM18706
492356
EM515466
492596
492581
EM508451
EM515455
EM513110
EM517177
EM517186
PART NAME
QTY.
REMARKS
FRONT PANEL OVERLAY
1
SWITCH, THROTTLE CONTROL
1
RED PILOT LENS DIA 5/8" .................................. 1 ........... INCLUDES ITEMS W/#
12 VDC BULB
2
IGNITION SWITCH
1
CONNECTOR, PLASTIC
1
IGNITION SWITCH KEY
1
SWITCH, PUMPING CONTROL
1
CONTROL BOX
1
RECEPTACLE (REMOTE)
1
HOURMETER
1
BOLT, HEX 1/4 IN. x 3/4 IN.
5
SUPPORT, ZENITH CONTROL PANEL
1
WASHER, FLAT 1/4 IN.
5
NUT, HEX 1/4 IN.
5
NUT, LOCK 1/4 IN.
6
SIDE SUPPORT, ZENITH CONTROL PANEL
1
BUSHING, 1/4- 20 RUBBER MUFFLER
3
EMERGENCY STOP BUTTON ............................ 1 .......... INCLUDES ITEMS W/%
ORANGE PILOT LENS DIA 5/8"
1
CONTACT BLOCK, EMERGENCY SWITCH
1
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 97
C-30HDG PUMP — BATTERY ASSY.
BATTERY ASSY.
PAGE 98 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — BATTERY ASSY.
BATTERY ASSY.
NO.
1
2
3
4
5
6
7
8
9
PART NO.
EM515122
EM506266
10318
EM492541
EM923023
EM923343
EM515113
EM505624
EM491344
PART NAME
CABLE, POSITIVE BATTERY
COVER, POSITIVE TERMINAL
BOX, BATTERY
NUT, HEX 5/16- 18
WASHER, FLAT 5/16
WASHER, LOCK 5/16
CABLE, NEGATIVE BATTERY
COVER, NEGATIVE TERMINAL
BATTERY, 12 VOLT
QTY.
1
1
1
1
1
1
1
1
1
REMARKS
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 99
C-30HDG PUMP — FUEL TANK ASSY.
FUEL TANK ASSY.
PAGE 100 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — FUEL TANK ASSY.
FUEL TANK ASSY.
NO.
1
2
3
5
7
8
9
10#
11#
12#
13
14#
15
16
PART NO.
EM517206
EM506208
ZPPC6304
EM491210
EM517433
EM517502
ZPP62027
19633
60058
12009
EM516533
EM516568
PART NAME
QTY.
REMARKS
HOSE, FUEL 5/16 IN.
18"
CLAMP, HOSE
1
FILTER, FUEL
1
PLUG, 1/4 IN.
1
FUEL TANK ASSY, STEEL .......................... 1 ............. INCLUDES ITEM 13
FUEL CAP
1
PUMP, FUEL
1
BUSHING
1
HOSE, 4-1/2"
1
SCREEN
1
PICK UP TUBE ASSY ................................. 1 ............. INCLUDES ITEMS W/#
FITTING
1
CLAMP, FUEL FILTER, #34 2-1/2" ID .......... 1 ............. INCLUDED W/FUEL PUMP
CLAMP, FUEL PUMP, #26 1-5/8" ID ............ 2 ............. INCLUDED W/FUEL PUMP
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 101
C-30HDG PUMP — HOPPER ASSY.
HOPPER ASSY.
3
2
4
5
1
PAGE 102 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — HOPPER ASSY.
HOPPER ASSY.
NO.
1
2
3
4
5
PART NO.
EM14159
EM14141
EM925191
EM104
EM507599
PART NAME
HOPPER SCREEN
HOPPER
PIN, HAIR
BOLT, 5/8”-11X2” HEX HEAD
WASHER 5/8” FLAT
QTY.
1
1
2
3
3
REMARKS
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 103
C-30HDG PUMP — HOOD ASSY.
HOOD ASSY.
PAGE 104 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — HOOD ASSY.
HOOD ASSY.
NO.
1
2
3
4
5
6
7
8
9
10
11
12
PART NO.
503723
491010
EM516883
490937
EM406
EM124
EM963003
EM923057
29057
EM969079
RAL1003S
RAL1003G
PART NAME
RIVET
LATCH KIT
HOOD ASSY.
BUMPER, RUBBER
NUT 1/2”-13 HEAVY HEX
BOLT 1/2” DIA-NC X4” G5
SCREW, HHC 1/4-20 X 3/4
WASHER
MANUAL HOLDER
NUT LOC NYLON 1/4
PAINT, SPRAY CAN 12 OZ. (YELLOW)
PAINT, GALLON (YELLOW)
QTY.
4
2
1
2
2
2
3
3
1
3
AR
AR
REMARKS
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 105
C-30HDG PUMP — LUBRICATION PANEL ASSY.
LUBRICATION PANEL ASSY.
NOTE
POSITION
Grease daily, two to three shots of #2
multi-purpose automotive grease.
Over-greasing any bearing will not
damage the machine.
LOCATION
LENGTH OF LINES
1 ....................................................COMPENSATOR ROD ........................................................................ 28"
2 ....................................................COMPENSATOR ROD ........................................................................ 31"
3 ....................................................COMPENSATOR ROD ........................................................................ 28"
4 ....................................................LOWER ROCKER ARM COMPENSATOR ROD ................................. 34"
5 ....................................................LOWER CONNECTING ROD- DRIVE SIDE ........................................ 10"
6 ....................................................LOWER ROCKER ARM - DRIVE SIDE ................................................ 15"
7 ....................................................UPPER ROCKER ARM - COMPENSATOR SIDE ................................ 28"
8 ....................................................UPPER ROCKER ARM - DRIVE SIDE ................................................. 26"
9 ....................................................COUNTER SHAFT BEARING - SPROCKET SIDE .............................. 20"
10 ..................................................COUNTER SHAFT - PULLEY SIDE ..................................................... 20"
11 ..................................................UPPER CONNECTING ROD - DRIVE SIDE ........................................ 40"
12 ..................................................CRANKSHAFT BEARING BLOCK ....................................................... 42"
13 ..................................................CAM BEARING .................................................................................... 42"
14 ..................................................CRANKSHAFT BEARING FLANGE .................................................... 20"
TOTAL LENGTH OF LINES REQUIRED ............................................. 384"
PAGE 106 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — LUBRICATION PANEL ASSY.
LUBRICATION PANEL ASSY.
NO.
1
*
2
*
3
*
4
*
5
*
6
*
7
*
8
PART NO.
EM916001
EM505489
505534
EM505516
EM490531
EM491028
EM505490
EM512659
PART NAME
QTY.
REMARKS
FITTING, GREASE 1/8" NPT
14
STRAIGHT FITTING 1/8" NPT
13
COUPLING W/NUT 1/8' NPT
14
PLASTIC HOSE LINE 1/4" DIA. ................ AR......... 1FT=1PC
PROTECTIVE SLEEVE 3/8" (HOSE) ......... AR......... 1FT=1PC
TIE-WRAP 2.5 x 95 MM
AR
ADAPTER, 90 DEGREE ELBOW
1
KIT, LUBRICATION ........................................ 1......... INCLUDES ITEMS W/
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 107
*
C-30HDG PUMP — REMOTE CONTROL CABLE ASSY.
REMOTE CONTROL CABLE ASSY.
PAGE 108 — MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10)
C-30HDG PUMP — REMOTE CONTROL CABLE ASSY.
REMOTE CONTROL CABLE ASSY.
NO.
1
*
2
*
3
*
4
*
5
*
6
*
7
*
8
*
9
PART NO.
EM16753
EM16754
EM16756
EM491897
EM26791
EM26790
EM26793
EM26792
EM26788
PART NAME
QTY.
REMARKS
JUNCTION BOX
1
SWITCH, MICRO
1
GUARD SWITCH - ALUMINUM
1
CONNECTOR, 3/16 RING
2
GRIP CORD SEAL
1
CORD 25' MX P/E
1
ADAPTER CORD GRIP 1/2"
1
ADAPTER CORD 100 FT.
1
COMPLETE CORD ASSY 25 FT .................. 1......... INCLUDES ITEMS W/
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 109
*
MAYCO PUMP WARRANTY
MECHANICAL DRIVE MODELS
HYDRAULIC DRIVE MODELS
MAYCO PUMP, hereinafter referred to as “Manufacturer’,
warrants each new Mayco Pump sold by the manufacturer
to be free from defects in material and workmanship, under
normal use and service, for a period of one year after the
date of delivery to the original retail purchaser. Manufacturer
will, at its option, replace or repair at a point designated by
the Manufacturer any part or parts which shall appear to
the satisfaction of the Manufacturer upon inspection at such
point to have been defective in material or workmanship.
This warranty does not obligate the Manufacturer to bear
any transportation charges or labor charges in connection
with the replacement or repair the of the defective parts.
MAYCO PUMP, hereinafter referred to as “Manufacturer”,
warrants each new Mayco Pump sold by the manufacturer
to be free from defects in material and workmanship,
under normal use and service, for a period of one year or
2000 hours after the date of delivery to the original retail
purchaser. The Manufacturer will, at its option, replace or
repair at a point designated by Manufacturer any part or
parts which shall appear to the satisfaction of Manufacturer
upon inspection at such point to have been defective in
material or workmanship. This warranty does not obligate
Manufacturer to bear any transportation charges or labor
charges in connection with the replacement or repair of
the defective parts.
This warranty does not apply to any pump if attempts
have been made to pump concrete materials which have
separated, to any pump which has been repaired with
other than Genuine Mayco Parts, nor to any pump which
has been altered, repaired or used in such manner as to
adversely affect its performance, nor to normal service or
maintenance or where blockages have developed within the
pump manifold or placing line or which has been operated
in any other manner not recommended by the Manufacturer.
Due to the abrasive nature of concrete, Mayco does not
cover natural component wear.
THIS WARRANTY AND MANUFACTURER’S OBLIGATION
HEREUNDER, IS IN LIEU OF ALL OTHER WARRANTIES,
EXPRESS, IMPLIED OR STATUTORY AND ALL OTHER
OBLIGATIONS OR LIABILITIES INCLUDING SPECIAL
OR CONSEQUENTIAL DAMAGES OR CONTINGENT
LIABILITIES ARISING OUT OF THE FAILURE OF ANY
PUMP OR PART TO OPERATE PROPERLY, INCLUDING
ANY WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE.
This warranty does not apply to any pump if attempts
have been made to pump concrete materials which have
separated, to any pump which has been repaired with
other than Genuine Mayco Parts, nor to any pump which
has been altered, repaired or used in such manner as to
adversely affect it’s performance, nor to normal service or
maintenance or where blockages have developed within the
pump manifold or placing line or which has been operated
in any other manner not recommended by the Manufacturer.
Due to the abrasive nature of concrete, Mayco does not
cover natural component wear.
THIS WARRANTY AND MANUFACTURER’S OBLIGATION
HEREUNDER, IS IN LIEU OF ALL OTHER WARRANTIES,
EXPRESS, IMPLIED OR STATUTORY AND ALL OTHER
OBLIGATIONS OR LIABILITIES INCLUDING SPECIAL
OR CONSEQUENTIAL DAMAGES OR CONTINGENT
LIABILITIES ARISING OUT OF THE FAILURE OF ANY
PUMP OR PART TO OPERATE PROPERLY, INCLUDING
ANY WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE.
MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #4 (03/22/10) — PAGE 111
OPERATION AND PARTS MANUAL
HERE’S HOW TO GET HELP
PLEASE HAVE THE MODEL AND SERIAL
NUMBER ON-HAND WHEN CALLING
UNITED STATES
Multiquip Corporate Office
18910 Wilmington Ave.
Carson, CA 90746
Contact: mq@multiquip.com
MQ Parts Department
Tel. (800) 421-1244
Fax (800) 537-3927
Mayco Parts
800-427-1244
310-537-3700
Fax: 800-672-7877
Fax: 310-637-3284
Warranty Department
800-306-2926
310-537-3700
Fax: 800-672-7877
Fax: 310-637-3284
Service Department
800-421-1244, Ext. 279
310-537-3700, Ext. 279
Fax: 310-537-1173
Technical Assistance
800-421-1244
310-537-3700
Fax: 310-537-4259
800-478-1244
Fax: 310-631-5032
MEXICO
UNITED KINGDOM
MQ Cipsa
Multiquip (UK) Limited Head Office
Carr. Fed. Mexico-Puebla KM 126.5
Momoxpan, Cholula, Puebla 72760 Mexico
Contact: pmastretta@cipsa.com.mx
Tel: (52) 222-225-9900
Fax: (52) 222-285-0420
Unit 2, Northpoint Industrial Estate,
Global Lane,
Dukinfield, Cheshire SK16 4UJ
Contact: sales@multiquip.co.uk
Tel: 0161 339 2223
Fax: 0161 339 3226
CANADA
Multiquip
4110 Industriel Boul.
Laval, Quebec, Canada H7L 6V3
Contact: jmartin@multiquip.com
Tel: (450) 625-2244
Tel: (877) 963-4411
Fax: (450) 625-8664
© COPYRIGHT 2010, MULTIQUIP INC.
Multiquip Inc, the MQ logo and the Mayco logo are registered trademarks of Multiquip Inc. and may not be used, reproduced, or altered without written permission. All other trademarks
are the property of their respective owners and used with permission.
This manual MUST accompany the equipment at all times. This manual is considered a permanent part of the equipment and should remain with the unit if resold.
The information and specifications included in this publication were in effect at the time of approval for printing. Illustrations, descriptions, references and technical data contained in
this manual are for guidance only and may not be considered as binding. Multiquip Inc. reserves the right to discontinue or change specifications, design or the information published
in this publication at any time without notice and without incurring any obligations.
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