MQ Multiquip MC94SK-PK Concrete Mixer Operation Manual

OPERATION MANUAL

MODEL

MC94SK/MC94PK

CONCRETE MIXER

(KOHLER CH395 9.5 HP GASOLINE ENGINE)

Revision #0 (06/22/22)

To find the latest revision of this publication or associated parts manual, visit our website at: www.multiquip.com

THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.

PROPOSITION 65 WARNING

PAGE 2 — MC94SK/PK CONCRETE MIXER • OPERATION MANUAL — REV. #0 (06/22/22)

SILICOSIS/RESPIRATORY WARNINGS

WARNING WARNING

SILICOSIS WARNING

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.

RESPIRATORY HAZARDS

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.

MC94SK/PK CONCRETE MIXER • OPERATION MANUAL — REV. #0 (06/22/22) — PAGE 3

MC94SK/PK Series

Concrete Mixers

Proposition 65 Warning ........................................... 2

Silicosis/Respiratory Warnings ................................ 3

Training Checklist .................................................... 5

Safety Information ............................................. 6–10

Mixer Specifications/Noise and Vibration .............. 11

Engine Specifications ............................................ 12

General Information ............................................... 13

Basic Components (Mixer) .................................... 14

Engine Components .............................................. 15

Towing Guidelines ................................................. 16

Safety Chain Connection ....................................... 17

Inspection ........................................................ 18–19

Start-Up .......................................................... 20–21

Operation ......................................................... 22–23

Maintenance (Engine) ..................................... 24–27

Maintenance (Mixer) ........................................ 27–30

Troubleshooting (Mixer) ......................................... 31

Troubleshooting (Engine) ................................. 32–33

NOTICE

Specifications and part numbers are subject to change without notice.

TABLE OF CONTENTS


2

3

4

5

6

7

No,

1

Description

Read operation manual completely.

Machine layout, location of components, checking of engine oil levels.

Fuel system, refueling procedure.

Operation of controls (machine not running).

Safety controls, safety stop switch operation.

Emergency stop procedures.

Machine transport and storage.

Training Checklist

OK?

TRAINING CHECKLIST

Date


Addresses practices not related to personal injury.

MODERATE INJURY.

Do not operate or service the equipment before reading Potential hazards associated with the operation of this

SAFETY MESSAGES result in injury to yourself and others.

messages and operating instructions could Failure to read and understand the safety at all times when operating this equipment. the entire manual. Safety precautions should be followed safety messages.

may appear throughout this manual in conjunction with equipment will be referenced with hazard symbols which Safety Hazard to the operator and are preceded by one of four words: safety messages specifi cally address the level of exposure about potential hazards that could injure you or others. The The four safety messages shown below will inform you SAFETY SYMBOLS DANGER, WARNING, CAUTION

WARNING SERIOUS INJURY.

Indicates a hazardous situation which, if not avoided, DANGER

Indicates a hazardous situation which, if not avoided, CAUTION SERIOUS INJURY.

Indicates a hazardous situation which, if not avoided,

Explosive fuel hazards Lethal exhaust gas hazards

Burn hazards

Rotating parts hazards

Do not operate or service the equipment before reading the entire manual. 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.

SAFETY MESSAGES

The four safety messages shown below will inform you about potential hazards that could injure you or others. The safety messages specifi cally address the level of exposure to the operator and are preceded by one of four words:

DANGER, WARNING, CAUTION or NOTICE.

SAFETY SYMBOLS

DANGER


WILL result in DEATH or SERIOUS INJURY.

WARNING


COULD result in DEATH or SERIOUS INJURY.

CAUTION


COULD result in MINOR or MODERATE INJURY.

NOTICE

Addresses practices not related to personal injury.

SAFETY INFORMATION

Potential hazards associated with the operation of this equipment will be referenced with hazard symbols which may appear throughout this manual in conjunction with safety messages.

Symbol Safety Hazard

Lethal exhaust gas hazards

Explosive fuel hazards

Burn hazards

Rotating parts hazards


hearing protection, steel-toed boots and other protective clothing, shatterproof glasses, respiratory protection, CAUTION operate this equipment without proper protective Manufacturer does not assume responsibility for any safety decals when they become diffi cult to read.

Whenever necessary, replace nameplate, operation and qualifi ed personnel 18 years of age or older.

devices required by the job or city and state regulations.

This equipment should only be operated by trained and recommended by Multiquip for this equipment. Damage use accessories or attachments that are not equipment modifi cation will void all warranties.

accident due to equipment modifi cations. Unauthorized snag on the controls or moving parts as this can cause Avoid wearing jewelry or loose-fi tting clothes that may serious injury.

to the equipment and/or injury to the user may result.

on medication.

operate this equipment under the fi re extinguisher.

know the location of the nearest Also, know the phone numbers feeling well due to fatigue, illness or when operate this equipment when not infl uence of drugs or alcohol. a phone on the job site.

know the location of the nearest phone or fi rst aid kit.

know the location of the nearest

This information will be invaluable in the case of an fi re department. of the nearest ambulance, doctor that would constitute a hazard while the equipment is clear the work area of any debris, tools, etc. in operation.

emergency.

its intended purposes or applications.

use the equipment for any purpose other than bolts before starting.

check the equipment for loosened threads or

GENERAL SAFETY

GENERAL SAFETY

CAUTION

NEVER operate this equipment without proper protective clothing, shatterproof glasses, respiratory protection, hearing protection, steel-toed boots and other protective devices required by the job or city and state regulations.

Avoid wearing jewelry or loose-fi tting clothes that may snag on the controls or moving parts as this can cause serious injury.

NEVER operate this equipment when not feeling well due to fatigue, illness or when on medication.

NEVER operate this equipment under the infl uence of drugs or alcohol.


NOTICE

This equipment should only be operated by trained and qualifi ed personnel 18 years of age or older.

Whenever necessary, replace nameplate, operation and safety decals when they become diffi cult to read.

Manufacturer does not assume responsibility for any accident due to equipment modifi cations. Unauthorized equipment modifi cation will void all warranties.

NEVER use accessories or attachments that are not recommended by Multiquip for this equipment. Damage to the equipment and/or injury to the user may result.

 ALWAYS know the location of the nearest fi re extinguisher.

 ALWAYS know the location of the nearest fi rst aid kit.

 ALWAYS know the location of the nearest phone or keep a phone on the job site.

Also, know the phone numbers of the nearest ambulance, doctor and fi re department.

This information will be invaluable in the case of an emergency.

ALWAYS clear the work area of any debris, tools, etc. that would constitute a hazard while the equipment is in operation.

ALWAYS check the equipment for loosened threads or bolts before starting.

DO NOT use the equipment for any purpose other than its intended purposes or applications.


shut down the engine before transporting.

tamper with the factory settings air fi lter frequently to prevent engine malfunction.

air fi lter. Severe engine damage may occur. Service the run the engine without an air fi lter or with a dirty to the engine or equipment can result of the engine or engine governor. Damage lift the machine to unnecessary heights.

cock to prevent fuel from spilling.

Tighten the fuel tank cap securely and close the fuel lift the equipment while the engine is running.

tie down equipment during transport by

tip the engine to extreme angles during lifting securing the equipment with rope.

TOWING SAFETY making the engine diffi cult to start.

as this may cause oil to gravitate into the cylinder head, sparks and open fl ames.

use extreme caution when working with refuel in a well-ventilated area, away from explosion (DOT) safety towing regulations Department of Transportation In addition to meeting CAUTION extremely fl ammable and its vapors can fl uids. Fuel is start the engine near spilled fuel or combustible county or state safety towing regulations before towing check your local comes into contact with hot engine parts or sparks from overfi ll the tank, since spilled fuel can ignite if it fl ammable fi ll the fuel tank while the engine is running place the fuel valve in the shut down the engine before transporting and good operating condition.

sure the towing vehicle is mechanically sound and in transporting the mixer on public roads, In order to reduce the possibility of an accident while

Store fuel in appropriate containers, in well-ventilated the ignition system.

Also check the tire tread wear on the vehicle and mixer.

Mixer tires should be infl ated to 50 psi cold Check the tire air pressure on both towing vehicle and smoke around or near the tow a mixer with defective hitches, couplings, chains, etc.

inspect the hitch and coupling for wear. use fuel as a cleaning agent.

areas and away from sparks and fl ames.

TRANSPORTING SAFETY hot engine.

from fuel vapors or if fuel is spilled on a could result equipment. Fire or explosion CAUTION The maximum speed for highway towing is the towing vehicle.

attach the mixer’s safety chains to make sure the mixer is equipped with a the equipment while lifting.

allow any person or animal to stand underneath improve towing.

or jackknifi ng. Smooth, gradual starts and stops will Avoid sudden stops and starts. These can cause skidding possible into the pockets (if applicable) when lifting the mixer.

make sure forklift forks are inserted as far as or less depending on type of terrain.

posted otherwise. Recommended off-road towing is not to

DANGER FUEL SAFETY maximum allowable.

if operating in speed ranges above the

MIXER SAFETY

DANGER

NEVER operate the equipment in an explosive atmosphere or near combustible materials. An explosion or fi re could result causing severe bodily harm or even death .

DO NOT mix fl ammable or explosive substances.

WARNING

NEVER place your hands inside the drum while starting or operating this equipment.

 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.

Before operating the mixer, ensure that the safety grate is in position and correctly fi tted.

CAUTION

NEVER lubricate components or attempt service on a running machine.

NOTICE

ALWAYS keep the machine in proper running condition.

ALWAYS ensure the mixer is on level ground before mixing.

Fix damage to the machine and replace any broken parts immediately.

DO NOT tip the mixer onto the drum mouth when the drum is rotating.

Ensure the drum is rotating while fi lling and emptying the drum.


ALWAYS store equipment properly when it is not being used. Equipment should be stored in a clean, dry location out of the reach of children and unauthorized personnel.

ALWAYS make sure the mixer is clean of dried materials.

DO NOT allow material to build up inside the drum. Keep the drum, frame and wheels clean. Excess debris can fall off on the highway and/or build up on the frame and wheels, creating an unbalanced condition leading to premature metal fatigue.

ENGINE SAFETY

DANGER

Engine fuel exhaust gases contain poisonous carbon monoxide. This gas is colorless and odorless, and can cause death if inhaled.

The engine of this equipment requires an adequate free fl ow of cooling air. NEVER operate this equipment in any enclosed or narrow area where the free flow of air is restricted. If the air fl ow is restricted it will cause injury to people and property and serious damage to the equipment or engine.

DANGEROUS

GAS FUMES

WARNING

DO NOT place hands or fingers inside the engine compartment when the engine is running.

NEVER operate the engine with heat shields or guards removed.

Keep fi ngers, hands, hair and clothing away from all moving parts to prevent injury.

DO NOT remove the engine oil drain plug while the engine is hot. Hot oil will gush out of the oil tank and severely scald any persons in the general area of the mixer.

CAUTION

NEVER touch the hot exhaust manifold, muffl er or cylinder. Allow these parts to cool before servicing the equipment.

Make certain the operator knows how to and is capable of turning the engine OFF in case of an emergency.


NOTICE

NEVER run the engine without an air fi lter or with a dirty air fi lter. Severe engine damage may occur. Service the air fi lter frequently to prevent engine malfunction.

NEVER tamper with the factory settings of the engine or engine governor. Damage to the engine or equipment can result if operating in speed ranges above the maximum allowable.

FUEL SAFETY

DANGER

DO NOT start the engine near spilled fuel or combustible fl uids. Fuel is extremely fl ammable and its vapors can cause an explosion if ignited.

ALWAYS refuel in a well-ventilated area, away from sparks and open fl ames.

ALWAYS use extreme caution when working with fl ammable liquids.

DO NOT or hot.

fi ll the fuel tank while the engine is running

DO NOT overfi ll the tank, since spilled fuel can ignite if it comes into contact with hot engine parts or sparks from the ignition system.

Store fuel in appropriate containers, in well-ventilated areas and away from sparks and fl ames.

NEVER use fuel as a cleaning agent.

DO NOT smoke around or near the equipment. Fire or explosion could result from fuel vapors or if fuel is spilled on a hot engine.

TRANSPORTING SAFETY

CAUTION

NEVER allow any person or animal to stand underneath the equipment while lifting.

NOTICE

ALWAYS make sure forklift forks are inserted as far as possible into the pockets (if applicable) when lifting the mixer.


ALWAYS shut down the engine before transporting.

NEVER lift the equipment while the engine is running.

Tighten the fuel tank cap securely and close the fuel cock to prevent fuel from spilling.

DO NOT lift the machine to unnecessary heights.

ALWAYS tie down equipment during transport by securing the equipment with rope.

NEVER tip the engine to extreme angles during lifting as this may cause oil to gravitate into the cylinder head, making the engine diffi cult to start.

TOWING SAFETY

CAUTION

 In addition to meeting Department of Transportation

(DOT) safety towing regulations , check your local county or state safety towing regulations before towing the mixer.

In order to reduce the possibility of an accident while transporting the mixer on public roads, ALWAYS make sure the towing vehicle is mechanically sound and in good operating condition.

ALWAYS shut down the engine before transporting and place the fuel valve in the OFF position.

ALWAYS inspect the hitch and coupling for wear. NEVER tow a mixer with defective hitches, couplings, chains, etc.

 Check the tire air pressure on both towing vehicle and mixer. Mixer tires should be infl ated to 50 psi cold .

Also check the tire tread wear on the vehicle and mixer.

 ALWAYS chain.

make sure the mixer is equipped with a safety

ALWAYS properly the towing vehicle.

attach the mixer’s safety chains to

The maximum speed for highway towing is 55 MPH unless posted otherwise. Recommended off-road towing is not to exceed 15 MPH or less depending on type of terrain.

Avoid sudden stops and starts. These can cause skidding or jackknifi ng. Smooth, gradual starts and stops will improve towing.


Avoid sharp turns to prevent rolling.

The mixer should be adjusted to a level position at all times when towing.

Raise and lock the mixer wheel stand in the when towing.

UP position

Place chock blocks underneath the mixer wheels to prevent rolling while parked.

ENVIRONMENTAL SAFETY/DECOMMISSIONING

NOTICE

Decommissioning is a controlled process used to safely retire a piece of equipment that is no longer serviceable.

If the equipment poses an unacceptable and unrepairable safety risk due to wear or damage or is no longer cost effective to maintain (beyond life-cycle reliability) and is to be decommissioned (demolition and dismantlement), follow the rules below.

DO NOT pour waste or oil directly onto the ground, down a drain or into any water source.

Contact your country’s Department of

Public Works or a recycling agency in your area and arrange for proper disposal of any electrical components, waste or oil associated with this equipment.

When the life cycle of this equipment is over, remove the battery (if equipped) and bring it to an appropriate facility for lead reclamation. Use safety precautions when handling batteries that contain sulfuric acid.

When the life cycle of this equipment is over, it is recommended that the mixer frame and all other metal parts be sent to a recycling center.

Metal recycling involves the collection of metal from discarded products and its transformation into raw materials to use in manufacturing a new product.

Recyclers and manufacturers alike promote the process of recycling metal. Using a metal recycling center promotes energy cost savings.


EMISSIONS INFORMATION

NOTICE

The gasoline engine used in this equipment has been designed to reduce harmful levels of carbon monoxide

(CO), hydrocarbons (HC) and nitrogen oxides (NOx) contained in gasoline exhaust emissions.

This engine has been certifi ed to meet US EPA evaporative emissions requirements in the installed confi guration.

Attempting to modify or make adjustments to the engine emission system by unauthorized personnel without proper training could damage the equipment or create an unsafe condition.

Additionally, modifying the fuel system may adversely affect evaporative emissions, resulting in fi nes or other penalties.

Emission Control Label

The emission control label is an integral part of the emission system and is strictly controlled by regulation(s).

The label must remain with the engine for its entire life.

If a replacement emission label is needed, please contact your authorized engine distributor.


MIXER SPECIFICATIONS/NOISE AND VIBRATION

LENGTH

HEIGHT

WIDTH

Figure 1. Dimensions

Height

Width

Length

Maximum Mixing Capacity

Bag Capacity

Weight

Table 1. MC94SK/PK Series Specifications/Dimensions

63 in. (1,600 mm)

51 in. (1,296 mm)

103 in. (2,616 mm)

9 cu. ft. (170 liters)

1 to 1.5 bag)

755 lbs. (342 Kg.)

Table 2. MC94SK/PK Noise And Vibration

Guaranteed ISO 11201:2010 Based

Sound Pressure Level at Operator Station in dB(A)

Guaranteed ISO 3744:2010 Based

Sound Power Level in dB(A)

TBD

TBD

NOTES:

1. Sound Pressure and Power Levels are “A” weighted Measures per ISO 226:2003 (ANSI S1.4-1981). They are measured with the operating condition of the machine which generates the most repeatable but highest values of the sound levels. Under normal circumstances, the sound level will vary depending on the condition of the material being worked upon.

2. The vibration level indicated is the vector sum of the RMS (Root Mean Square) Values of amplitudes on each axis, standardized to an 8 hour exposure period, and obtained using operating condition of the machine that generates the most repeatable but highest values in accordance with the applicable standards for the machine.


ENGINE SPECIFICATIONS

Model

Type

Bore X Stroke

Displacement

Max Output

Fuel Tank Capacity

Fuel

Lube Oil Capacity

Speed Control Method

Starting Method

Dimension

(L x W x H)

Dry Net Weight

Table 3. Engine Specifications

KOHLER CH395

Air-cooled 4 stroke, Single Cylinder, OHV,

Horizontal Shaft Gasoline Engine

3.1 in. X 2.3 in.

(78 mm x 58 mm)

16.91 cu. in. (277 cc)

9.5 H.P. (7.1 kW)/4,000 rpm

1.84 U.S. Gallons

(7.0 Liters)

Unleaded Automobile Gasoline

1.16 qt. (1.1 liter)

Centrifugal Fly-weight Type

Recoil Start

12.4 x 17.8 X 16.8 in.

(315 X 452 X 428 mm)

61.5.1 lbs (27.9 Kg.)

Applications

Most Ordinary

Foundations

Rough Mass

Concrete

Watertight Floors,

Tanks, Pits, etc.

Mix Ratios

1:2:4

Table 4. Mixing Hints

Batch Quantities

Cement Bag

112 lb (50 Kg)

Cu. Ft.

Sand Stone

Ltr Cu. Ft.

Approx. Batch

Output

Ltr Cu. Ft.

Ltr

1/2 Bag 1¼ 35 2½ 71 3 85

1:3:6

1:4:8

1:1½:3

1/3 Bag

1/4 Bag

2/3 Bag

1¼

1¼

1¼

35

35

35

2½

2½

3

71

71

71

2¾

2¾

3

78

78

85


APPLICATION

This mixer is only intended for the production of concrete .

The mixer must be used for its intended purpose and is not suitable for the mixing of flammable or explosive substances. The mixer must not be used in an explosive

atmosphere. Use Table 4 (Mixing Hints) as a guide when

mixing concrete for various applications.

POWER PLANT

This mixer is powered by a Kohler CH395 4-stroke, air-

cooled, single-cylinder gasoline engine Refer to Table 3

for specific engine data information.

HARDWARE

Check all hardware on the mixer before starting. Periodically inspect all hardware. Loose hardware can contribute to early component failure and poor performance. Use

Table 5 as general guideline when the torqueing of mixer

hardware is required. Remember to keep all mixer hardware components tight.

Table 5. Hardware Torque Recommendations

Hardware Diameter

5/16-inch x 18

3/8-inch x 16

3/8-inch x 24

1/2-inch x 13

1/2-inch x 13 (Grade 8)

Torque (ft-lbs)

14

24

37

39

90

GENERAL INFORMATION

ENGINE MAINTENANCE

For basic engine maintenance, refer to the engine maintenance section in this manual. For more detailed engine maintenance, refer to the Kohler Engine Owner's manual furnished with the engine.

OPTIONAL TOW BARS

This mixer can be configured for use with various types of

tow bars (ball, loop and pin). Reference Figure 2. Contact

MQ sales department for the desired tow bar.

HBC-1

HLC-1

OPTIONAL TOWING BARS

Figure 2. Optional Tow Bars

HPC-1


12

11

1

8

9

10

13

14

5

2

6

3

7

4

Figure 3. Mixer Major Components

1. Steel Mixing Drum — This mixer uses a 6 cu. ft steel mixing drum. This drum is to be used for mixing of concrete. Always clean the drum after each use.

DO

NOT use this mixing drum for the mixing of volatile liquids.

2. Dump Latch — To rotate the mixing drum, this latch must be in the up position. To lock the drum, place the latch in the down position.

3. Dump Gear Guard — NEVER operate the mixer with this guard removed. Its purpose is to prevent dirt and debris from entering the dump gear. In addition, operator clothing could become entangled in the dump gear, causing severe injury and bodily harm.

4. Handwheel — Turn this wheel clockwise or counter- clockwise to rotate the mixing drum. Remember the dump latch must be in the up position in order for the mixing drum to be rotated.

BASIC COMPONENTS (MIXER)

5. Zerk Fittings — There are four grease zerk fittings that require lubrication, three are on the yoke , and the remaining fitting is located in the center of the handwheel . Lubricate these fittings as referenced in the maintenance section of this manual.

6. Safety Chain — This mixer uses a 3/16-inch thick,

72-inches long zinc-plated saftey chain. ALWAYS connect the safety chain when towing.

7. Tow Bar — This mixer uses various towing bars, please reference the frame assembly drawing and parts list in this manual to determine which tow bar meets your requirements.

8. Spring Suspension — This mixer uses a spring type suspension. Check the mounting hardware for bolt hole elongation and tightness. See maintenance section of this manual for recommended maintenance.

9. Chock Blocks — Place these blocks (not included as part of the mixer package) under each mixer wheel to prevent rolling, when mixer is not connected to the towing vehicle.

10. Tires Ply — The tire ply (layers) number is rated in letters. This mixer uses 13-inch 2-ply tires. Replace with only recommended type tires.

11. ON/OFF Switch (gasoline only) — This switch is provided on mixer with gasoline engines only and is located on the side of the mixer cabinet. When activated it will shut down the engine. Pull out when starting the engine.

12. Cabinet/Latch — Encloses engine and electric motor.

NEVER run mixer with cabinet removed. Use latches to secure engine compartment cabinet.

13. Mixing Blades (Steel) — Used for the mixing of concrete. When blades show signs of wear, entire steel mixing drum assembly must be replaced. See steel mixing drum assembly in the parts section of this manual.

14. Forklift Pockets — When lifting of the mixer is required, use these fork lift pockets to lift the mixer. Remember to insert the forks of the forklift a minimum of 24 inches into the lift pockets.


10

12

11

3

1

2

9 4

8

7

5

6

Figure 4. Engine Components

INITIAL SERVICING

The engine (Figure 4) must be checked for proper

lubrication and filled with fuel prior to operation. Refer to the manufacturer's engine manual for instructions and details of operation and servicing.

1. Fuel Filler Cap – Remove this cap to add unleaded gasoline to the fuel tank.

DANGER

Add fuel to the tank only when the engine is stopped and has had an opportunity to cool down. In the event of a fuel spill, DO

NOT attempt to start the engine until the fuel residue has been completely wiped up and the area surrounding the engine is dry.

2. Fuel Tank – Fill with unleaded gasoline. Refer

to Table 3 for fuel tank capacity. Make sure cap is

tightened securely. DO NOT over fill. For additional information, refer to Kohler engine owner's manual.

3. Throttle Lever – Used to adjust engine RPM speed.

4. Engine On/Off Switch – ON position permits engine starting, OFF position stops engine operation.

5. Dipstick/Oil Filler Cap – Remove this cap to determine if the engine oil is low. Add oil through this filler port as

recommended in Table 6.

ENGINE COMPONENTS

6. Oil Drain Plug – Remove this plug to remove oil from the engine's crankcase.

7. Recoil Starter (pull rope) – Manual-starting method.

Pull the starter grip until resistance is felt, then pull briskly and smoothly.

8. Fuel Valve Lever – OPEN to let fuel flow, CLOSE to stop the flow of fuel.

9. Choke Lever – Used in the starting of a cold engine, or in cold weather conditions. The choke enriches the fuel mixture.

10. Air Cleaner – Prevents dirt and other debris from entering the fuel system. Remove wing-nut on top of air filter canister to gain access to filter element.

NOTICE

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.

11. Muffler – Used to reduce noise and emissions. NEVER touch when hot!

12. Spark Plug – Provides spark to the ignition system.

Set spark plug gap according to engine manufacturer's instructions. Clean spark plug once a week.


TOWING SAFETY PRECAUTIONS

CAUTION

Check with your county or state safety towing regulations department before towing your mixer.

To reduce the possibility of an accident while transporting the mixer on public roads, always make sure that the mixer towing components 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 mixer:

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 mixer 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

Chain."

make sure the mixer is equipped with a "Safety

ALWAYS attach trailer's safety chain to the frame of towing vehicle.

ALWAYS make sure that the towing vehicle's directional, backup, and brake lights are working properly.

Remember in most cases the maximum speed unless otherwise posted for highway towing is 55 MPH, however before towing your mixer, check your local state, and county vehicle towing requirements. Recommended offroad towing is not to exceed 15 MPH or less depending on type of terrain.

Place chocked blocks underneath wheels to prevent rolling , while parked, if disconnected from towing vehicle.

Inflate tires to correct pressure, inspect tires for cuts, and

excessive wear. See Table 8 (Tire Wear Troubleshooting).

When towing of the mixer is required, place the drum in the up position (mouth facing upwards).

TOWING GUIDELINES

ALWAYS make sure that the fuel valve lever is in the

OFF position (gasoline models only).

Check wheel mounting lug nuts with a torque wrench.

Torque wheel lug nuts as described in the maintenance section of this manual.

Check tightness of U-clamp nuts, torque suspension hardware as referenced in the maintenance section of this manual.

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.

CAUTION

If the mixer tow bar is deformed or damaged replace entire tow bar. NEVER tow the mixer with a defective tow bar. There exists the possibility of the trailer separating from the towing vehicle.

TOW BAR TO VEHICLE (COUPLER ONLY)

1. Check the vehicle hitch ball, and mixer's coupler for signs of wear or damage. Replace any parts that are worn or damaged before towing.

2. Use only a 2-inch ball diameter (towing vehicle), this will match the mixer's 2-inch 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. After tow bar has been connected to mixer (see next page), attach mixer's coupler to the hitch ball on the towing vehicle securely and make sure the lock lever is in the down position (locked).

MIXER TOW BAR VEHICLE (PINTLE AND LOOP)

1. Make sure the bumper on the towing vehicle is equipped to handle either a pintle or loop type tow bar configuration.

2. After tow bar has been connected to mixer (see next page), secure either type of tow bar to the towing vehicle, following state and county towing regulations

3. As a minimum, use a 1/2-inch bolt and nylock nut grade

5 when securing either tow bar to the towing vehicle.


SAFETY CHAIN CONNECTION

CAUTION

NEVER tow the mixer with the safety chain removed.

The safety chain is intended to prevent complete separation of the mixer from the towing vehicle in the event of a tow bar failure.

TOW BAR TO MIXER CONNECTION

1. Insert the tow bar through the round opening at the

bottom of the mixer stand (Figure 5).

TOW BAR

SAFETY CHAIN

CONNECTOR LINK

Figure 7. Crossing The Safety Chain

5. Extend the safety chain along the length of the tow bar

(Figure 8), looping it through the tow bar's connector

link. Remove any excess chain slack.

HEX BOLT

(1/2”)

NYLOCK NUT

(1/2”)

Figure 5. Inserting Tow Bar

2. Align the hole on the tow bar with the hole on the mixer

frame (Figure 5), and insert 1/2-inch bolt through tow

bar and frame. Secure tow bar to frame with 1/2-inch nylock nut. Tighten to 40 ft.-lbs.

3. Route the safety chain through the holes just above the tow bar, located on each side of the mixer stand.

TOW BAR

CONNECTOR LINK

CONNECTOR LINK

TO TOWING VEHICLE

HOLE (1)

HOLE (2)

SAFETY CHAIN

Figure 6. Attaching Safety Chains to Mixer Stand

4. Loop (cross) the safety chain (Figure 7) and place

under the tow bar. Secure the loop with the safety chain connector link.

Figure 8. Extending Safety Chain

6. Connect the free end of (connector link) the safety

chain to the towing vehicle (Figure 8). Remember

it is critical that the length of the chain be properly adjusted, to prevent the draw bar and the front of the mixer stand from dropping to the the ground (contact) in the event the draw bar becomes disconnected from the towing vehicle.

CAUTION

Use a lifting device to lift tow bar onto vehicle coupler. If lifting device is not available, have two persons of similar height lift the tow bar. When lifting, do not attempt to lift by bending forward. Bend hips and knees to squat down to your load, keep it close to your body, and straighten your legs to lift.


BEFORE STARTING

CAUTION

NEVER disable or disconnect the start/stop switch .

It is provided for operator safety. Injury may result if it is disabled, disconnected or improperly maintained.

1. Read all safety instructions at the beginning of manual.

2. Clean the unit, removing dirt and dust, particularly the engine cooling air inlet, carburetor and air cleaner.

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 carburetor for external dirt and dust. Clean with dry compressed air.

5. Check fastening nuts and bolts for tightness.

CAUTION

ALWAYS wear approved eye and hearing protection while operating the mixer.

CAUTION

NEVER place hands or feet inside the engine guard cover while the engine is running. ALWAYS shut the engine down before performing any kind of maintenance service on the mixer.

INSPECTION

ENGINE OIL CHECK

1. To check the engine oil level, place the unit on secure level ground with the engine stopped.

2. Remove the filler dipstick from the engine oil filler hole

(Figure 9) and wipe it clean.

DIPSTICK

Figure 9. Engine Oil Dipstick (Removal)

3. Insert and remove the dipstick without screwing it into the filler neck. Check the oil level shown on the dipstick.

4. If the oil level is low (Figure 10), fill to the edge of the oil filler hole with the recommended oil type (Table 6).

Maximum oil capacity is 1.16 quarts (1.1 liters).

Reference engine manufacturer’s manual for specific servicing instructions.

UPPER LIMIT

LOWER LIMIT

Figure 10. Engine Oil Dipstick (Oil Level)

Season

Summer

Spring/Fall

Winter

Table 6. Engine Oil Type

Temperature

25°C or Higher

25°C ~ 10°C

0°C or Lower

Oil Type

SAE 10W-30

SAE 10W-30/20

SAE 10W-10


FUEL CHECK

DANGER

If your mixer has a gasoline engine, determine if the engine fuel is low. If fuel is low, remove the fuel filler cap and fill it with unleaded gasoline. Motor fuels are highly flammable and can be dangerous if mishandled. DO NOT smoke while refueling. DO

NOT attempt to refuel the mixer if the engine is hot or running.

TIRES

Check for worn or defective

tires (Figure 12). Replace any

defective or worn tires immediately.

CUT

INSPECTION

BALDNESS

MISSING

RUBBER

1. Remove the gasoline cap located on top of fuel tank.

2. Visually inspect (Figure 11) to see if fuel level is low.

If fuel is low, replenish with unleaded fuel.

CRACKS

FUEL

CAP

DEFORMED

Figure 12. Tire Wear

V-BELT CHECK

Visually examine the V-belt (Figure 13) and determine if it

is full of tiny cracks, frayed, has pieces of rubber missing, is peeling or otherwise damaged.

Also, examine the belt and determine if it is oil soaked or

" glazed " (hard shiny appearance on the sides of the belt).

Either of these two conditions can cause the belt to run hot, which can weaken it and increase the danger of it breaking.

If the V-belt exhibits any of the above wear conditions replace the V-belt immediately.

OIL SOAKED

Figure 11. Engine Oil Dipstick (Oil Level)

3. When refueling, be sure to use a strainer for filtration.

DO NOT top-off fuel. Wipe up any spilled fuel immediately.

GLAZED CORD FAILURE

WORN BACK

COVER

BROKEN

MISSING RUBBER

CRACKS

SIDEWALL

WEAR

Figure 13. V-Belt Inspection


This section is intended to assist the operator with the initial start-up of the unit. It is extremely important that this section be read carefully before attempting to use the mixer in the field. DO NOT use your mixer until this section is thoroughly understood.

WARNING

Failure to understand the operation of the mixer could result in severe damage to the mixer or personal injury.

Reference Figure 3 and Figure 4 for the location of any

components referenced in this manual.

CAUTION

NEVER operate the mixer in a confined area or enclosed area structure that does not provide ample free flow of air.

STARTING THE MIXER

The following steps outline the procedure for starting the engine.

1. Place the fuel shut-off lever (Figure 14) in the

ON position.

START-UP

2. To start a cold engine, move the choke lever (Figure 15)

to the CLOSED position.

CLOSE

CHOKE LEVER

OPEN

Figure 15. Choke Lever

3. Move the throttle lever (Figure 16) away from the slow

position, about 1/3 of the way toward the fast position.

THROTTLE

LEVER

FUEL VALVE

LEVER

OFF ON

Figure 14. Fuel Shut-Off Lever


4. Turn the engine switch (Figure 17) to the

ON position.

START-UP

6. Pull the starter grip

(Figure 19) lightly until you feel

resistance, then pull briskly. Return the starter grip gently.

OFF

ENGINE

SWITCH

ON

Figure 17. Engine On/Off Switch

5. Located at the rear of the mixer frame is the main start/ stop

button (Figure 18). Pull this button outward

to start the engine.

PULL OUT TO

START

STARTER GRIP

Figure 19. Starter Grip

START/STOP

SWITCH

Figure 18. Engine Start/Stop Button


OPERATION

MIXING

1. To position the tub, make sure the mixer is placed on firm level ground, then pull up on the dump latch

(Figure 20) and turn the hand wheel until the tub is

at the desired position. Once the tub is at the desired position, pull down on the dump latch to lock the tub in position.

Figure 20. Mixing Drum Positioning

CAUTION

NEVER stand in front or behind the mixing drum while it is being placed in the dump position. Stay clear of the mixing drum while it is being positioned.

2. As the drum rotates, use a shovel (Figure 21) to place

the cement mix inside the drum, add water as required.

Be careful to only place the tip of the shovel inside the drum.

Figure 21. Filling Mixing Drum (CORRECT)

3.

Placing the shovel all the way inside the drum (Figure 22)

will cause the shovel to strike the blades. This condition will make the shovel rotate, and could cause injury to personnel.

NEVER place hands inside the mixing drum while it is rotating.

Figure 22. Filling Mixing Drum (WRONG)


STOPPING THE MIXER

1. Place the throttle lever (Figure 23) in the slow (idle)

position, and let the engine idle 3~5 minutes.

OPERATION

3. Place fuel shut-off lever (Figure 25) in the

OFF position.

THROTTLE

LEVER

FUEL VALVE

LEVER

FAST SLOW

Figure 23. Throttle Lever (Idle)

2. Push the engine start/stop

switch (Figure 24) inward

to stop the engine.

TO S

TOP

PUSH IN TO

STOP

OFF ON

Figure 25. Fuel Shut-Off Lever (OFF)

Figure 24. Start/Stop Button (Stop Position)


MAINTENANCE (ENGINE)

Use Table 7 as a general maintenance guideline when servicing your engine. For more detail engine maintenance information,

refer to the engine owner’s manual supplied with your engine.

DESCRIPTION

(3)

Engine Oil

Air Cleaner

Pre-Cleaner

Table 7. Engine Maintenance Schedule

OPERATION BEFORE

FIRST

MONTH OR

5 HRS.

EVERY 3

MONTHS

OR 50 HRS.

EVERY 6

MONTHS

OR 100

HRS.

X Check

Replace

Check

Replace

X

X (4)

X (1)

X

Air Cleaner

Element

All Nuts and

Bolts

Replace

Re-tighten if necessary

Spark Plugs

Check/Clean

Replace

Cooling Fins Check/Clean

Spark Arrester

Fuel Tank

Fuel Filter

Idle Speed

Clean

Clean

Check

Check/

Adjust

Valve

Clearance

Fuel Lines

Check/

Adjust

Check

X

Every 200 hours

X

X

EVERY

YEAR

OR 300

HRS.

X

X

X

X (2)

X (2)

Every 2 years (replace if necessary) (2)

(1) Service more frequently when used in DUSTY areas.

EVERY 2

YEARS OR

500 HRS.

X

(2) These items should be serviced by your service dealer, unless you have the proper tools and are mechanically proficient. Refer to the KOHLER Shop Manual for service procedures.

(3) For commercial use, log hours of operation to determine proper maintenance intervals.

(4) NOT required if using KOHLER PRO 10W-50 full-synthetic oil.


MAINTENANCE

Perform the scheduled maintenance procedures as defined

by Table 7 and below:

DAILY

AIR CLEANER/ FASTENERS

Thoroughly remove dirt and oil from the engine and control area. Clean or replace the air cleaner elements as necessary. Check and retighten all fasteners as necessary.

WIRING

Inspect the entire mixer for bad or worn electrical wiring or connections. If any wiring or connections are exposed

(insulation missing) replace wiring immediately.

PIPING AND HOSE CONNECTION

Inspect all piping, oil hose, hydraulic hose and fuel hose connections for wear and tightness. Tighten all hose clamps and check for leaks. If any hose lines are defective replace them immediately.

WEEKLY

FUEL STRAINER (IF EQUIPPED)

1. Thoroughly clean the area around the fuel cap.

2. Remove the fuel cap from the fuel tank.

3. Next, remove, inspect and clean the fuel strainer

(Figure 26) with solvent.


SPARK PLUG

1. Remove and clean the spark plug (Figure 27), then

adjust the spark gap to 0.031 inch (0.76 mm). This unit has electronic ignition, which requires no adjustments.

GAP: 0.031 in.

(0.76 mm.)

Figure 27. Spark Plug Gap

ENGINE OIL

1. Drain the engine oil when the oil is warm as shown in

Figure 28.

2. Unscrew the oil filler dipstick from its holder.

3. Next, remove oil drain bolt and sealing washer and allow the oil to drain into a suitable container.

4. Replace engine oil with recommended type oil as

listed in Table 6. For engine oil capacity, see Table 3

(Engine Specifications). DO NOT overfill.

5. Install drain bolt with sealing washer and tighten securely.

OIL FILLER

DIPSTICK

FUEL TANK CAP

FUEL STRAINER

Figure 26. Fuel Strainer

DRAIN

BOLT

SEALING

WASHER

Figure 28. Draining Engine Oil


ENGINE AIR CLEANER (QUAD-CLEAN)

NOTICE

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.

NOTICE

DO NOT use compressed air to clean the paper element..

AIR CLEANER COVER REMOVAL

1. To remove the air cleaner cover from the base, pull

down on the locking latches as referenced in Figure 29.

2. Remove air cleaner cover and set aside.

PRE-CLEANER (EVERY 3 MONTHS/50 HOURS)

DANGER

DO NOT use gasoline as a cleaning solvent to avoid creating the risk of fire or an explosion.

1. Remove pre-cleaner (foam filter element) as shown

in Figure 29.

LATCH

AIR CLEANER

COVER

PAPER

ELEMENT

PRECLEANER


2. Replace or clean foam element in warm, soapy water

or nonflammable solvent (Figure 30). Rinse and dry

thoroughly.

ENGINE OIL

FOAM

ELEMENT

SOLVENT

SQUEEZE

THOROUGHLY

Figure 30. Cleaning Foam Element

3. Next, dip the element in clean engine oil and completely squeeze out the excess oil from the element before installing. The engine will smoke if too much oil is left in the foam.

PAPER ELEMENT (EVERY 200 HOURS)

CAUTION

If mixer is used in DUSTY areas replace pre-cleaner and paper element more frequently.

1. Remove pre-cleaner from paper element.

2. Next, remove paper element from base.

3. Install new paper element onto base and place clean foam pre-cleaner over paper element.r

4. Position air cleaner cover over the base. For normal operation (sun decal out) or cold weather operation

(snowflake decal out).

5. Lift up on the locking latches to secure air cleaner cover to the base.

6. Reassemble the air cleaner, and tighten the wing nut securely.

Figure 29. Engine Air Cleaner (Quad-Clean)


4 MM

SCREW

4 MM SCREW

MAINTENANCE (ENGINE/MIXER)

SPARK ARRESTER CLEANING (300 HOURS)

Clean the spark arrester once a year or 300 hours.

1. Remove the 4 mm screw (3) from the exhaust deflector

(Figure 31), then remove the deflector.

BALL SOCKET AND CLAMP FACE

1. If the towing vehicle is equipped with a ball socket

(Figure 33), smear socket periodically with multi-

purpose grease.

This will keep the ball socket well lubricated.

BALL

SOCKET

PROTECTOR

5 MM SCREW

MUFFLER

5 MM

SCREW

MULTI-PURPOSE

GREASE

SPARK

ARRESTOR

Figure 31. Spark Arrester

2. Remove the 5 mm screw (4) from the muffler protector, then remove the muffler protector.

3. Carefully remove carbon deposits from the spark

arrester screen (Figure 32) with a wire brush

WIRE BRUSH

Figure 33. Ball Socket

2. Periodically oil pivot points and clamp face surfaces of coupler with SAE 30 WT. motor oil.

3. When parking or storing your mixer, keep the coupler off the ground so dirt will not build up in the ball socket.

GREASE FITTINGS (ZERK) - MIXER

1. There are four

grease (Figure 34) fittings that will

require lubrication. Lubricate these fittings once a week . Use lithium base grease, grade N0.1.

SPARK ARRESTOR

SCREEN

Figure 32. Cleaning The Spark Arrester

4. If the spark arrester is damaged and has breaks or holes, replace with a new one.

5. Reinstall the spark arrester and muffler protector in reverse order of disassembly.

GREASE

FITTING

GREASE

FITTING

CAP

Figure 34. Grease Fittings (Mixer)


WHEEL BEARINGS

1. After every 3 months of operation, remove the hub

dust cap and inspect the wheel bearings (Figure 35).

Once a year, or when required, disassemble the wheel hubs remove the old grease and repack the bearings forcing grease between rollers, cone and cage with a good grade of high speed wheel bearing grease (never use grease heavier than 265 A.S.T.M. penetration

(“No. 2.”).

OIL SEAL

CONE BEARING

MAINTENANCE (MIXER)

4. At the end of each day’s operation, place mixer drum in an upright position and spray inside of tub immediately with water to prevent lumps of dried mortar or plaster from forming and contamination of future batches.

5. DO NOT allow a buildup of materials to form on the blades or anywhere inside the drum.

6. Rotate mixer to dump position and remove debris.

7. Thoroughly clean the entire mixer, wheels, cabinet and frame.

8. NEVER!

pour or spray water over the engine

(Figure 36).

CONE

BEARING

BEARING

CUP

BEARING

CUP

Figure 35. Wheel Hub and Bearings

2. Fill the wheel hub (Figure 35) with grease to the inside

diameter of the outer races and also fill the hub grease cap. Reassemble the hub and mount the wheel. Then tighten the adjusting nut, at the same time turn the wheel in both directions, until there is a slight bind to be sure all the bearing surfaces are in contact.

Then back-off the adjusting nut 1/6 to 1/4 turn or to the nearest locking hole or sufficiently to allow the wheel to rotate freely within limits of .001” to .010” end play.

Lock the nut at this position. Install the cotter pin and dust cap, and tighten all hardware.

MIXER CLEANING

It is important that the drum interior is free of dried material.

Obstructions can cause the paddle blades to lock against the drum.

1. Push the “Engine Stop” button inward to the OFF position to the stop the engine.

2. ALWAYS disconnect the spark plug wire before cleaning the inside of the drum.

3. Place “DO NOT Operate” tag on mixer.

Figure 36. No Spraying of Water

9. When cleaning of the entire mixer is done, return mixing drum to an upright position.

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.

WARNING

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.

WARNING

ALWAYS wear safety glasses when removing or installing force fitted parts. Failure to comply may result in serious injury.

Table 8 (Tire Wear Troubleshooting) will help pinpoint the

causes and solutions of tire wear problems.

Table 8. Tire Wear Troubleshooting

Wear Pattern Cause Solution

Center

Wear

Over Infl ation

Adjust pressure to particular load per tire manufacturer

Edge

Wear

Under

Infl ation

Side

Wear

Loss of chamber or overloading

Adjust pressure to particular load per tire manufacturer.

Make sure load does not exceed axle rating. Align wheels.

Toe

Wear

Incorrect toe-in

Align wheels.

Flat

Spots

Check bearing adjustment and balance tires.

Wheel lockup and tire skidding

Avoid sudden stops when possible and adjust brakes.


SUSPENSION

The spring suspension and associated components (Figure 37)

should be visually inspected every 6,000 miles for signs of excessive wear, elongation of bolt holes and loosening of mounting bracket. Replace any damaged suspension component immediately.

Figure 37. Suspension Components

LUG NUT TORQUE REQUIREMENTS

It is extremely important to apply and maintain proper wheel mounting torque. 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. See Figure 38.

DO NOT torque the wheel lug nuts all the way down. Tighten

(torque) each lug nut in three separate passes as defined

by Table 9.

NOTICE

NEVER use an pneumatic air gun to tighten wheel lug nuts.


3. After first road use, retorque all lug nuts in sequence.

Check all wheel lug nuts periodically.

1

4 3

2

4-LUG NUTS

4

2

1

5

3

5-LUG NUTS

6

4

1

2

3

5

8

6

4

1

2

3

5

7

6-LUG NUTS 8-LUG NUTS

LUG NUT

TORQUE

WRENCH


MIXER STORAGE

For storage of the mixer for over 30 days, the following is recommended:

Drain the fuel tank completely, or add STA-BIL to the fuel.

Run the engine until the gasoline in the carburetor is completely consumed.

Completely drain the oil from the crankcase and refill with fresh oil.

Clean the entire mixer and engine compartment.

Place the mixing drum in the down position (mouth facing downward).

Clean all external parts of the mixer with a cloth.

Cover the mixer and place it a clean dry area, that is protected from harsh elements.

PNEUMATIC

AIRGUN

Figure 38. Wheel Lug Nuts Tightening Sequence

Wheel Size

12"

13"

Table 9. Tire Torque Requirements

First Pass

FT-LBS

20-25

20-25

Second Pass

FT-LBS

35-40

35-40

Third Pass

FT-LBS

50-65

50-65

14"

15"

16"

20-25

20-25

20-25

50-60

50-60

50-60

90-120

90-120

90-120


Symptom

Drum rotates rough.

Drum does not rotate at all.

TROUBLESHOOTING (MIXER)

Troubleshooting (Mixer)

Possible Problem

Defective ring gear?

Defective pinion gear?

Worn V-belt?

Loose pulley?

Incorrect or no voltage being supplied to electric motor?

Power to electric motor?

Fuel?

Broken V-belt?

Defective ring or pinion gears?

Defective electric motor?

Solution

Check that the ring gear and bearings are not worn . Replace as necessary.

Check that the pinion gear and bearings are not worn . Replace as necessary.

Replace V-belt.

Tighten or replace pulley.

Check that the electric motor has the correct supply voltage.

Inspect power source and extension cord. Push reset button on electric motor. Make sure correct voltage is being supplied to motor.

Check level of fuel in fuel tank. Add fuel if necessary. Make sure fuel is being supplied to the engine. Check to ensure that the fuel fi lter is not clogged.

Replace V-belt.

Check that the gears and bearings are not broken. Replace as necessary.

Replace electric motor.


TROUBLESHOOTING (ENGINE)

Symptom

Diffi cult to start, fuel is available, but no spark at spark plug.

Diffi cult to start, fuel is available, and spark is present at the spark plug.

Diffi cult to start, fuel is available, spark is present and compression is normal.

Diffi cult to start, fuel is available, spark is present and compression is low.

No fuel present at carburetor.

Troubleshooting (Engine)


Spark plug bridging?

Carbon deposit on spark plug?

Short circuit due to defi cient spark plug insulation?

Improper spark plug gap?

Spark plug is red?

Solution

Check gap, insulation or replace spark plug.

Clean or replace spark plug.

Check spark plug insulation, replace if worn.

Spark plug is bluish white?

No spark present at tip of spark plug?

No oil?

Oil pressure alarm lamp blinks upon starting? (if applicable)

If insuffi cient compression, repair or replace engine. If injected air leaking, correct leak. If carburetor jets clogged, clean carburetor.

Check transistor ignition unit is broken, and replace defective unit. Check if voltage cord is cracked or broken and replace. Check if spark plug is fouled. Replace if fouled.

Add oil as required.

Check automatic shutdown circuit, "oil sensor".

(if applicable)

ON/OFF switch is shorted?

Ignition coil defective?

Improper spark gap, points dirty?

Set correct spark gap and clean points.

Condenser insulation worn or short circuiting?

Replace condenser.

Spark plug wire broken or short circuiting?

Check switch wiring, replace switch.

Replace ignition coil.

Wrong fuel type?

Replace defective spark plug wiring.

Flush fuel system, replace with correct type of fuel.

Water or dust in fuel system?

Air cleaner dirty?

Choke open?

Suction/exhaust valve stuck or protruded?

Piston ring and/or cylinder worn?

Cylinder head and/or spark plug not tightened properly?

Head gasket and/or spark plug gasket damaged?

No fuel in fuel tank?

Set to proper gap.

Check transistor ignition unit.

Flush fuel system.

Clean or replace air cleaner.

Close choke.

Reseat valves.

Replace piston rings and/or piston.

Torque cylinder head bolts and spark plug.

Fuel cock does not open properly?

Fuel fi lter/lines clogged?

Fuel tank cap breather hole clogged?

Air in fuel line?

Replace head and spark plug gaskets.

Fill with correct type of fuel.

Apply lubricant to loosen fuel cock lever, replace if necessary.

Replace fuel fi lter.

Clean or replace fuel tank cap.

Bleed fuel line.

Will not start, no power with key "ON". (if applicable)

ON/OFF device not in ON position?

Place ON/OFF device in ON posotion.


TROUBLESHOOTING (ENGINE)

Weak in power, compression is proper but misfi res.

Symptom

Weak in power, compression is proper and does not misfi re.

Engine overheats.

Rotational speed fl uctuates.

Recoil starter malfunctions. (if applicable)

Burns too much fuel.

Exhaust color is continuously "white".

Exhaust color is continuously "black".

Troubleshooting (Engine) - continued


Air cleaner dirty?

Improper level in carburetor?

Defective spark plug?

Improper spark plug?

Water in fuel system?

Dirty spark plug?

Ignition coil defective?

Spark plug heat value incorrect?

Wrong type of fuel?

Cooling fi ns dirty?

Intake air restricted?

Solution


Check fl oat adjustment, rebuild carburetor.


Set to proper gap.

Flush fuel system and replace with correct type of fuel.


Replace ignition coil.

Replace with correct type of spark plug.

Replace with correct type of fuel.

Clean cooling fi ns.

Clear intake of dirt and debris. Replace air cleaner elements as necessary.

Oil level too low or too high?

Governor adjusted incorrectly?

Governor spring defective?

Fuel fl ow restricted?

Adjust oil to proper level.

Adjust governor.

Replace governor spring.

Check entire fuel system for leaks or clogs.

Recoil mechanism clogged with dust and dirt?

Clean recoil assembly with soap and water.

Spiral spring loose?

Over-accumulation of exhaust products?

Wrong spark plug?

Replace spiral spring.

Check and clean valves. Check muffl er and replace if necessary.

Replace spark plug with manufacturer's suggested type.

Lubricating oil is wrong viscosity?

Worn rings?

Air cleaner clogged?

Choke valve set to incorrect position?

Carburetor defective, seal on carburetor broken?

Poor carburetor adjustment, engine runs too rich?

Replace lubricating oil with correct viscosity.

Replace rings.


Adjust choke valve to correct position.

Replace carburetor or seal.

Adjust carburetor.


OPERATION MANUAL

UNITED STATES

Multiquip Inc.

(310) 537- 3700

6141 Katella Avenue Suite 200

Cypress, CA 90630

E-MAIL: [email protected]

WEBSITE: www.multiquip.com

HERE’S HOW TO GET HELP

PLEASE HAVE THE MODEL AND SERIAL

NUMBER ON-HAND WHEN CALLING

CANADA

Multiquip

(450) 625-2244

4110 Industriel Boul.

Laval, Quebec, Canada H7L 6V3

E-MAIL : [email protected]

UNITED KINGDOM

Multiquip (UK) Limited Head Offi ce

0161 339 2223

Unit 2, Northpoint Industrial Estate,

Globe Lane,

Dukinfi eld, Cheshire SK16 4UJ

E-MAIL : [email protected]

© COPYRIGHT 2022, MULTIQUIP INC.

Multiquip Inc , the MQ 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 specifi cations 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 specifi cations, design or the information published in this publication at any time without notice and without incurring any obligations.

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