MULTIQUIP | DCA300SSC | Specifications | MULTIQUIP DCA300SSC Specifications

Operation and Parts Manual
Whisperwatt™ Series
MODEL dca300ssc
MODEL dca300sscU
60hz generator
(cummins qsl9-g3 DIESEL ENGINE)
PARTS LIST NO. c2870300204 — DCA300SSC
PARTS LIST NO. c2870300104A — DCA300SSCU
Revision #1 (08/10/11)
To find the latest revision of this
publication, visit our website at:
www.multiquip.com
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
proposition 65 warning
Diesel engine exhaust and some of
page 2 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
Reporting Safety Defects
If you believe that your vehicle has a defect that could cause a crash or could cause
injury or death, you should immediately inform the National Highway Traffic Safety
Administration (NHTSA) in addition to notifying Multiquip at 1-800-421-1244.
If NHTSA receives similar complaints, it may open an investigation, and if it finds
that a safety defect exists in a group of vehicles, it may order a recall and remedy
campaign. However, NHTSA cannot become involved in individual problems
between you, your dealer, or Multiquip.
To contact NHTSA, you may either call the Vehicle Safety Hotline toll-free at 1-888327-4236 (TTY: 1-800-424-9153), go to http://www.nhtsa.dot.gov; or write to:
Administrator
NHTSA
1200 New Jersey Avenue S.E.
Washington, DC 20590
You can also obtain information about motor vehicle safety from
http://www.safecar.gov.
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 3
Table of Contents
DCA300SSC/DCA300SSCU
60 Hz Generators
Proposition 65 warning............................................. 2
Reporting Safety Defects.......................................... 3
Table of Contents...................................................... 4
Parts Ordering Procedures....................................... 5
Safety Information............................................... 6-11
Specifications......................................................... 12
Dimensions............................................................. 13
Installation......................................................... 14-15
General Information................................................ 16
Major Components................................................. 17
Generator Control Panel.................................... 18-19
Engine Operating Panel.................................... 20-21
Output Terminal Panel Familiarization............... 22-24
Load Application..................................................... 25
Generator Outputs.................................................. 26
Generator Outputs/Gauge Reading........................ 27
Output Terminal Panel Connections.................. 28-29
Inspection/Setup................................................ 30-33
Genertor Start-Up Procedure (Manual)............. 34-35
Generator Start-Up Procedure (Auto Mode)........... 36
Generator Shut-Down Procedures......................... 37
Maintenance...................................................... 38-41
Trailer Maintenance........................................... 42-45
Trailer Wiring Diagram............................................ 46
Generator Wiring Diagram...................................... 47
Engine Wiring Diagram........................................... 48
Controller Wiring Diagram...................................... 49
Troubleshooting (Generator)................................... 50
Troubleshooting (Engine Controller)....................... 51
Troubleshooting (Diagnostic lamp)......................... 52
Explanation of Code in Remarks Column.............. 54
Suggested Spare Parts.......................................... 55
Component Drawings
Generator Assembly.......................................... 56-59
Control Box Assembly........................................ 60-63
Engine and Radiator Assembly.......................... 64-67
Engine Operating Panel Assembly..................... 68-69
Output Terminal Assembly . .............................. 70-74
Battery Assembly (DCA300SSC)...................... 75-76
Battery Assembly (DCA300SSCU)................... 77-78
Muffler Assembly................................................ 79-80
Fuel Tank Assembly (DCA300SSC).................. 81-82
Fuel Tank Assembly (DCA300SSCU)................ 83-84
Enclosure Assembly.......................................... 85-91
Rubber Seals Assembly.................................... 92-93
Nameplt.and Decals Assy. (DCA300SSC)......... 94-97
Nameplt. and Decals Assy. (DCA300SSCU)... 98-101
Terms and Conditions of Sale — Parts................ 102
page 4 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
www.multiquip.com
Parts Ordering Procedures
Ordering parts has never been easier!
Choose from three easy options:
Order via Internet (Dealers Only):
Best Deal!
Effective:
January 1st, 2006
If you have an MQ Account, to obtain a Username
and Password, E-mail us at: parts@multiquip.
com.
Order parts on-line using Multiquip’s SmartEquip website!
■ View Parts Diagrams
■ Order Parts
■ Print Specification Information
To obtain an MQ Account, contact your
District Sales Manager for more information.
Use the internet and qualify for a 5% Discount
on Standard orders for all orders which include
complete part numbers.*
Goto www.multiquip.com and click on
Order Parts to log in and save!
Note: Discounts Are Subject To Change
Order via Fax (Dealers Only):
All customers are welcome to order parts via Fax.
Domestic (US) Customers dial:
1-800-6-PARTS-7 (800-672-7877)
Fax your order in and qualify for a 2% Discount
on Standard orders for all orders which include
complete part numbers.*
Note: Discounts Are Subject To Change
Order via Phone: Domestic (US) Dealers Call:
1-800-427-1244
Non-Dealer Customers:
Contact your local Multiquip Dealer for
parts or call 800-427-1244 for help in
locating a dealer near you.
International Customers should contact
their local Multiquip Representatives for
Parts Ordering information.
When ordering parts, please supply:
❒
❒
❒
❒
❒
❒
Dealer Account Number
Dealer Name and Address
Shipping Address (if different than billing address)
Return Fax Number
Applicable Model Number
Quantity, Part Number and Description of Each Part
❒ Specify Preferred Method of Shipment:
✓ UPS/Fed Ex
✓ DHL
■ Priority One
✓ Truck ■ Ground
■ Next Day
■ Second/Third Day
NOTICE
All orders are treated as Standard Orders and will
ship the same day if received prior to 3PM PST.
WE ACCEPT ALL MAJOR CREDIT CARDS!
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 5
Safety Information
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.
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.
SaFetY meSSageS
The four 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 four words:
Danger, Warning, CaUtion or notiCe.
SaFetY SYmBolS
Danger
Indicates a hazardous situation which, if not avoided,
Will result in DEATH or SerioUS inJUrY.
Warning
Indicates a hazardous situation which, if not avoided,
CoUlD result in DEATH or SerioUS inJUrY.
CaUtion
Indicates a hazardous situation which, if not avoided,
CoUlD result in minor or moDerate inJUrY.
NOTICE
Addresses practices not related to personal injury.
page 6 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
Safety Information
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.
„ never operate this equipment when not
feeling well due to fatigue, illness or when
under medication.
„ never operate this equipment under the influence of
drugs or alcohol.
„ never use accessories or attachments that are not
recommended by MQ Power for this equipment. Damage
to the equipment and/or injury to user may result.
„ alWaYS know the location of the nearest
fire extinguisher.
„ alWaYS know the location of the nearest
first 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
fire department. This information will be invaluable in
the case of an emergency.
generator SaFetY
Danger
„ 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.
NOTICE
„ This equipment should only be operated by trained and
qualified personnel 18 years of age and older.
„ Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.
„ Manufacturer does not assume responsibility for any
accident due to equipment modifications. Unauthorized
equipment modification will void all warranties.
„ never operate the equipment in an explosive
atmosphere or near combustible materials. An
explosion or fire could result causing severe
bodily harm or even death.
Warning
„ 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.
CaUtion
„ never lubricate components or attempt service on a
running machine.
NOTICE
„ alWaYS ensure generator is on level ground before use.
„ alWaYS keep the machine in proper running condition.
„ Fix damage to machine and replace any broken parts
immediately.
„ 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
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 7
Safety Information
engine SaFetY
Danger
„ The 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
flow of cooling air. never
operate this equipment in
any enclosed or narrow area
where free flow of the air is
restricted. If the air flow is
restricted it will cause injury to people and property and
serious damage to the equipment or engine.
Warning
„ Do not place hands or fingers inside engine
compartment when engine is running.
„ never operate the engine with heat shields or
guards removed.
„ Keep fingers, hands hair and clothing away
from all moving parts to prevent injury.
„ Do not remove the radiator cap while the
engine is hot. High pressure boiling water
will gush out of the radiator and severely
scald any persons in the general area of
the generator.
„ Do not remove the coolant drain plug while the engine
is hot. Hot coolant will gush out of the coolant tank and
severely scald any persons in the general area of the
generator.
„ 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
generator.
CaUtion
„ never touch the hot exhaust manifold,
muffler or cylinder. Allow these parts to cool
before servicing equipment.
NOTICE
„ never run engine without an air filter or with a dirty air
filter. Severe engine damage may occur. Service air filter
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.
„ Wet stacking is a common problem with diesel engines
which are operated for extended periods with light or
no load applied. When a diesel engine operates without
sufficient load (less than 40% of the rated output), it will
not operate at its optimum temperature. This will allow
unburned fuel to accumulate in the exhaust system,
which can foul the fuel injectors, engine valves and
exhaust system, including turbochargers, and reduce
the operating performance.
In order for a diesel engine to operate at peak efficiency,
it must be able to provide fuel and air in the proper ratio
and at a high enough engine temperature for the engine
to completely burn all of the fuel.
Wet stacking does not usually cause any permanent
damage and can be alleviated if additional load is
applied to relieve the condition. It can reduce the system
performance and increase maintenance. Applying an
increasing load over a period of time until the excess
fuel is burned off and the system capacity is reached
usually can repair the condition. This can take several
hours to burn off the accumulated unburned fuel.
„ State Health Safety Codes and Public Resources
Codes specify that in certain locations, spark arresters
must be used on internal combustion engines that use
hydrocarbon fuels. A spark arrester is a device designed
to prevent accidental discharge of sparks or flames
from the engine exhaust. Spark arresters are qualified
and rated by the United States Forest Service for this
purpose. In order to comply with local laws regarding
spark arresters, consult the engine distributor or the
local Health and Safety Administrator.
page 8 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
Safety Information
FUel SaFetY
Danger
„ Do not start the engine near spilled fuel or combustible
fluids. Diesel fuel is extremely flammable and its vapors
can cause an explosion if ignited.
„ Make sure the hitch and coupling of the towing vehicle
are rated equal to, or greater than the trailer “gross
vehicle weight rating.”
„ alWaYS inspect the hitch and coupling for wear. never
tow a trailer with defective hitches, couplings, chains, etc.
„ alWaYS refuel in a well-ventilated area, away from
sparks and open flames.
„ Check the tire air pressure on both towing vehicle and
trailer. Trailer tires should be inflated to 50 psi cold.
Also check the tire tread wear on both vehicles.
„ alWaYS use extreme caution when working with
flammable liquids.
„ alWaYS make sure the trailer is equipped with a safety
chain.
„ Do not fill the fuel tank while the engine is running
or hot.
„ alWaYS properly attach trailer’s safety chains to towing
vehicle.
„ Do not overfill tank, since spilled fuel could ignite if it
comes into contact with hot engine parts or sparks from
the ignition system.
„ alWaYS make sure the vehicle and trailer directional,
backup, brake and trailer lights are connected and
working properly.
„ Store fuel in appropriate containers, in well-ventilated
areas and away from sparks and flames.
„ DOT Requirements include the following:
„ 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.
toWing SaFetY
CaUtion
„ Check with your local county or state safety
towing regulations, in addition to meeting
Department of Transportation (DOT)
Safety Towing Regulations, before towing
your generator.
„ Refer to MQ Power trailer manual for additional safety
information.
„ In order to reduce the possibility of an accident while
transporting the generator on public roads, alWaYS
make sure the trailer that supports the generator and
the towing vehicle are mechanically sound and in good
operating condition.
„ alWaYS shutdown engine before transporting
•Connectandtestelectricbrakeoperation.
• Secure portable power cables in cable tray with tie
wraps.
„ 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. This can cause skidding,
or jack-knifing. Smooth, gradual starts and stops will
improve towing.
„ Avoid sharp turns to prevent rolling.
„ Trailer should be adjusted to a level position at all times
when towing.
„ Raise and lock trailer wheel stand in up position when
towing.
„ Place chock blocks underneath wheel to prevent rolling
while parked.
„ Place support blocks underneath the trailer’s bumper
to prevent tipping while parked.
„ Use the trailer’s swivel jack to adjust the trailer height to
a level position while parked.
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 9
Safety Information
eleCtriCal SaFetY
Danger
„ Do not touch output terminals during
operation. Contact with output terminals
during operation can cause electrocution,
electrical shock or burn.
„ The electrical voltage required to
operate the generator can cause severe
injury or even death through physical contact with live
circuits. Turn generator and all circuit breakers oFF
before performing maintenance on the generator or
making contact with output terminals.
„ never insert any objects into the output
receptacles during operation. This is
extremely dangerous. The possibility exists
of electrical shock, electrocution or
death.
„ Backfeed to a utility system can cause
electrocution and/or property damage.
never connect the generator to a
building’s electrical system without
a transfer switch or other approved
device. All installations should be
performed by a licensed electrician in accordance with
all applicable laws and electrical codes. Failure to do so
could result in electrical shock or burn, causing serious
injury or even death.
„ Make sure power cables are securely connected to the
generator’s output receptacles. Incorrect connections
may cause electrical shock and damage to the
generator.
NOTICE
„ alWaYS make certain that proper power or extension
cord has been selected for the job. See Cable Selection
Chart in this manual.
Grounding Safety
Danger
„ alWaYS make sure that electrical circuits are properly
grounded to a suitable earth ground (ground rod) per
the National Electrical Code (NEC) and local codes
before operating generator. Severe injury or death by
electrocution can result from operating an ungrounded
generator.
„ never use gas piping as an electrical ground.
Power Cord/Cable Safety
Danger
„ never let power cords or cables lay in water.
„ never stand in water while AC power from the
generator is being transferred to a load.
„ never use damaged or worn cables or cords when
connecting equipment to generator. Inspect for cuts in
the insulation.
„ never grab or touch a live power
cord or cable with wet hands. The
possibility exists of electrical shock,
electrocution or death.
page 10 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
Safety Information
BatterY SaFetY
Danger
„ Do not drop the battery. There is a possibility that the
battery will explode.
„ Do not expose the battery to open flames,
sparks, cigarettes, etc. The battery contains
combustible gases and liquids. If these
gases and liquids come into contact with a
flame or spark, an explosion could occur.
Warning
environmental SaFetY
NOTICE
„ 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.
„ alWaYS wear safety glasses when handling
the battery to avoid eye irritation. The battery
contains acids that can cause injury to the
eyes and skin.
„ Use well-insulated gloves when picking up the battery.
„ alWaYS keep the battery charged. If the battery is not
charged, combustible gas will build up.
„ alWaYS recharge the battery in a well-ventilated
environment to avoid the risk of a dangerous concentration
of combustible gasses.
„ If the battery liquid (dilute sulfuric acid) comes into
contact with clothing or skin, rinse skin or clothing
immediately with plenty of water.
„ If the battery liquid (dilute sulfuric acid) comes into
contact with eyes, rinse eyes immediately with plenty
of water and contact the nearest doctor or hospital to
seek medical attention.
CaUtion
„ alWaYS disconnect the negative battery terminal
before performing service on the generator.
„ alWaYS keep battery cables in good working condition.
Repair or replace all worn cables.
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 11
Specifications
Model
Type
Table 1. Generator Specifications
DCA300SSC/DCA300SSCU
Revolving field, self ventilated,
open protected type synchronous generator
Star with Neutral
3
264 KW (330 kVA)
240 KW (300 kVA)
Armature Connection
Phase
Standby Output
Prime Output
3Ø Voltage (L-L/L-N)
208Y/120, 220Y/127, 240Y/139
Voltage Change-Over Bd. at 3Ø 240/139
3Ø Voltage (L-L/L-N)
416Y/240, 440Y/254, 480Y/277
Voltage Change-Over Bd. at 3Ø 480/277
1Ø Voltage (L-L/L-N)
240/120
Voltage Change-Over Bd. at 1Ø 240/120
Power Factor
0.8
Frequency
60 Hz
Speed
1800 rpm
Aux. AC Power
Single Phase, 60 Hz
Aux. Voltage/Output
4.8 Kw (2.4 kW x 2)
Dry Weight
8,644 lbs. (3,920 kg)
Wet Weight
9,769 lbs. (4,430 kg)
Table 2. Engine Specifications
Model
Cummins QSL9-G3 Tier 3
4 cycle, water-cooled, direct injection, turbo-charged
Type
with air to air after-cooler
No. of Cylinders
6 cylinders
Bore x Stroke
4.49 in. x 5.69 in. (114 mm x 145 mm)
Displacement
543 cu. in. (8900 cc)
Rated Output
363 HP at 1800 rpm
Starting
Electric
Coolant Capacity
11.3 gal. (43.0 liters)
Lube Oil Capacity
7.0 gal. (26.5 liters)
Fuel Type
#2 Diesel Fuel
Fuel Tank Capacity
129 gal. (490 liters)
19.0 gal. (72.0 L)/hr at full load 15.5 gal. (58.6 L)/hr at 3/4 load
Fuel Consumption
11.1 gal. (41.9 L)/hr at 1/2 load 5.9 gal. (22.4 L)/hr at 1/4 load
Battery
150 Ah x 2 (24V System)
page 12 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
Dimensions
Figure 1. Dimensions
Table 3. Dimensions
Reference
Letter
Dimension in. (mm)
Reference Letter
Dimension in. (mm)
A
39.76 in. (1,010 mm)
F
43.90 in. (1,115 mm)
B
43.90 in. (1,115 mm)
G
149.61 in. (3,800 mm)
C
23.03 in. (585 mm.)
H
70.87 in. (1,800 mm)
D
25.20 in. (640 mm)
I
55.12 in. (1,400 mm)
E
39.76 in. (1,010 mm)
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 13
Installation
Figure 2. Typical Generator Grounding Application
page 14 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
Installation
Outdoor Installation
Generator Grounding
Install the generator in a area that is free of debris,
bystanders, and overhead obstructions. Make sure the
generator is on secure level ground so that it cannot slide
or shift around. Also install the generator in a manner so
that the exhaust will not be discharged in the direction of
nearby homes.
To guard against electrical shock and possible damage to
the equipment, it is important to provide a good EARTH
ground.
The installation site must be relatively free from moisture
and dust. All electrical equipment should be protected from
excessive moisture. Failure to do will result in deterioration
of the insulation and will result in short circuits and
grounding.
Foreign materials such as dust, sand, lint and abrasive
materials have a tendency to cause excessive wear to
engine and alternator parts.
CAUTION
Pay close attention to ventilation when operating the
generator inside tunnels and caves. The engine exhaust
contains noxious elements. Engine exhaust must be
routed to a ventilated area.
Indoor Installation
Article 250 (Grounding) of the National Electrical Code
(NEC) provides guide lines for proper grounding and
specifies that the cable ground shall be connected to the
grounding system of the building as close to the point of
cable entry as practical.
NEC articles 250-64(b) and 250-66 set the following
grounding requirements:
1. Use one of the following wire types to connect the
generator to earth ground.
a. Copper - 8 AWG (5.3 mm2)
b. Aluminum - 6 AWG (8.4 mm2)
2. When grounding the generator (Figure 2) connect the
ground cable between the lock washer and the nut on
the generator and tighten the nut fully. Connect the
other end of the ground cable to earth ground.
3. NEC article 250-52(c) specifies that the earth ground rod
should be buried a minimum of 8 ft. into the ground.
Exhaust gases from diesel engines are extremely
poisonous. Whenever an engine is installed indoors the
exhaust fumes must be vented to the outside. The engine
should be installed at least two feet from any outside wall.
Using an exhaust pipe which is too long or too small can
cause excessive back pressure which will cause the engine
to heat excessively and possibly burn the valves.
When connecting the generator to any buildings
electrical system ALWAYS consult with a licensed
electrician.
Mounting
This generator has a permanent bonding conductor
between the generator stator windings and the frame.
NOTICE
NOTICE
The generator must be mounted on a solid foundation (such
as concrete) and set firmly on the foundation to isolate
vibration of the generator when it is running. The generator
must set at least 6 inches above the floor or grade level (in
accordance to NFPA 110, Chapter 5-4.1). DO NOT remove
the metal skids on the bottom of the generator. They are
to resist damage to the bottom of the generator and to
maintain alignment.
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 15
General Information
Generator
Open Delta Excitation System
The MQ Power DCA300SSC and DCA300SSCU
generators (Figure 3) are designed as a high quality
portable (requires a trailer for transport) power source for
telecom sites, lighting facilities, power tools, submersible
pumps and other industrial and construction machinery.
Each generator is equipped with the state of the art “OpenDelta” excitation system. The open delta system consist
of an electrically independent winding wound among
stationary windings of the AC output section.
There are four connections of the open delta A, B, C and
D. During steady state loads, the power from the voltage
regulator is supplied from the parallel connections of A to
B, A to D, and C to D. These three phases of the voltage
input to the voltage regulator are then rectified and are the
excitation current for the exciter section.
When a heavy load, such as a motor starting or a short
circuit occurs, the automatic voltage regulator (AVR)
switches the configuration of the open delta to the series
connection of B to C. This has the effect of adding the
voltages of each phase to provide higher excitation to the
exciter section and thus better voltage response during the
application of heavy loads.
The connections of the AVR to the AC output windings are
for sensing only. No power is required from these windings.
The open-delta design provides virtually unlimited excitation
current, offering maximum motor starting capabilities. The
excitation does not have a “fixed ceiling” and responds
according the demands of the required load.
Engine Operating Panel
The “Engine Operating Panel” is provided with the following:
„„Tachometer
„„Emergency Stop Switch
„„Water Temperature Gauge
„„Oil Pressure Gauge
„„Charging Ammeter Gauge
„„Fuel Level Gauge
„„Pre-Heat Lamp
„„Engine Speed Switch
„„Battery Switch
„„Engine Alarm Lamps (5)
Generator Control Panel
The “Generator Control Panel” is provided with the following:
„„Frequency Meter (Hz)
„„AC Ammeter (Amps)
„„AC Voltmeter (Volts)
„„Ammeter Change-Over Switch
„„Voltmeter Change-Over Switch
„„Voltage Regulator
„„Panel Light/Panel Light Switch
„„3-Pole, 800 amp Main Circuit Breaker
„„“Control Box” (located behind the Gen. Control Panel)
•Automatic Voltage Regulator
•Current Transformer
•Over-Current Relay
•Starter Relay
•Engine Controller (Computer Controlled)
Output Terminal Panel
The “Output Terminal Panel” is provided with the following:
„„Three 120/240V output receptacles (CS-6369), 50A
„„Three auxiliary circuit breakers, 50A
„„Two 120V output receptacles (GFCI), 20A
„„Two GFCI circuit breakers, 20A
„„Eight output terminal lugs (3Ø power)
„„Battery Charger (Optional)
„„Water Heater (Optional)
Engine
Both generators are powered by a 6 cylinder, 4-cycle water
cooled, direct injection, turbocharged, charge air cooled
Cummins qsl9-g3 diesel engine. This engine is designed
to meet every performance requirement for the generator.
Reference Table 2 for engine specifications.
In keeping with MQ Power’s policy of constantly improving
its products, the specifications quoted herein are subject
to change without prior notice.
Electric Governor System
The electric governor system controls the RPMs of the engine.
When the engine demand increases or decreases, the
governor system regulates the frequency variation to ±.25%.
Extension Cables
When electric power is to be provided to various tools or
loads at some distance from the generator, extension cords
are normally used. Cables should be sized to allow for
distance in length and amperage so that the voltage drop
between the generator and point of use (load) is held to
a minimum. Use the cable selection chart (Table 6) as a
guide for selecting proper extension cable size.
page 16 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
Major Components
Table 4. Generator Major Components
ITEM NO.
DESCRIPTION
1
Muffler Assembly
2
Engine Assembly
3
Enclosure Assembly
4
Generator Assembly
5
Output Terminal Assembly
6
Battery Assembly
7
Fuel Tank Assembly
8
Generator Control Panel Assembly
9
Engine Operating Panel Assembly
Figure 3. Major Components
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 17
Generator Control Panel
Figure 4. Generator Control Panel
The definitions below describe the controls and functions
of the Generator Control Panel (Figure 4).
1. Pilot Lamp — Indicates the system is running.
2. Panel Light — Normally used in dark areas or at night
time. When activated, panel lights will illuminate. When
the generator is not in use be sure to turn the panel
light switch to the OFF position.
3. AC Voltmeter — Indicates the output voltage present
at the U,V, and W Output Terminal Lugs.
4. Auto On/Off Engine Controller (MPEC) —
This controller has a vertical row of status LED’s (inset),
that when lit, indicate that an engine malfunction (fault)
has been detected. When a fault
has been detected the engine
controller will evaluate the fault
and all major faults will shutdown
the generator. During cranking
cycle, The MPEC will attempt to
crank the engine for 10 seconds
before disengaging.
If the engine does not engage (start) by the third
attempt, the engine will be shutdown by the engine
controller’s Over Crank Protection mode. If the
engine engages at a speed (RPM’s) that is not safe,
the controller will shutdown the engine by initializing
the Over Speed Protection mode.
5. Main Circuit Breaker — This three-pole, 800 amp
main breaker is provided to protect the U,V, and W
Output Terminal Lugs from overload.
6. Voltmeter Change-Over Switch — This switch allows
the AC voltmeter to indicate phase to phase voltage
between any two phases of the output terminals or to
be switched off.
7. Voltage Regulator Control — Allows ±15% manual
adjustment of the generator’s output voltage.
8. Panel Light Switch — When activated will turn on
control panel light.
9. Ammeter Change-Over Switch — This switch allows
the AC ammeter to indicate the current flowing to the load
connected to any phase of the output terminals, or to be
switched off. This switch does not effect the generator
output in any fashion, it is for current reading only.
10. AC Ammeter — Indicates the amount of current the
load is drawing from the generator per leg selected by
the ammeter phase-selector switch.
11. Frequency Meter — Indicates the output frequency
in hertz (Hz). Normally 60 Hz
page 18 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
Generator Control Panel
„„MPEC Control Switch — This switch controls the
running of the unit. If this switch is set to the OFF/RESET
position, the unit will not run. When this switch is set to the
manual position, the generator will start immediately.
If the generator is to be connected to a building’s AC
power source via a transfer switch (isolation), place the
switch in the auto position. In this position, should an
outage occur, the automatic transfer switch (ATS) will
start the generator automatically via the generator’s autostart contacts conn ected to the ATS’s start contacts.
Please refer to your ATS installation manual for further
instructions for the correct installation of the auto-start
contacts of the geerator to the ATS.
„„Low Oil Pressure — Indicates the engine pressure
has fallen below a safe operating level. The oil pressure
is detected using variable resistive values from the
oil pressure sending unit. This is considered a major
fault.
„„High Coolant Temperature — Indicates the engine
temperature has exceeded a safe operating level. The
engine temperature is detected using variable resistive
values from the temperature sending unit. This is
considered a major fault.
The Control Box is equipped with the following major
components:
„„Over-Current Relay
„„Voltage Rectifier (AVR)
„„Starter Relay
„„Current Transformer
„„Voltage Change-Over Board
„„Three Phase Circuit Breaker
NOTICE
Remember the overcurrent relay monitors the current
flowing from the U,V, and W Output Terminal Lugs
to the load.
In the event of a short circuit or over current condition,
it will automatically trip the 800 amp main breaker.
To restore power to the Output Terminal Panel, press
the reset button on the overcurrent relay and place the
main circuit breaker in the closed position (ON).
„„Overcrank Shutdown — Indicates the unit has
attempted to start a pre- programmed number of
timesand has failed to start. The number of cycles and
duration are programmable. It is pre-set at 3 cycles with
a 10-second duration. This is considered a major fault.
„„Overspeed Shutdown — Indicates the engine is running
at an unsafe speed. This is considered a major fault.
„„Engine Running — Indicates that engine is running at
a safe operating speed.
Located behind the generator control panel is the
Generator Control Box. This box contains some of the
necessary electronic components required to make the
generator function.
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 19
ENGINE OPERATING PANEL
1
2
3
4
5
6
WATER TEMP.
OIL PRESS.
AIR FILTER
COOLANT LEVEL
7
9
8
FUEL LEVEL
ON
OFF
Figure 5. Engine Operating Panel
The definitions below describe the controls and functions
of the Engine Operating Panel (Figure 5).
1. Tachometer — Indicates engine speed in RPM’s for 60
Hz operation. This meter should indicate 1800 RPM’s
when the rated load is applied. In addition a built in hour
meter will record the number of operational hours that
the generator has been in use.
2. Oil Pressure Gauge — During normal operation this
gauge be should read between 28 to 85 psi. (193~586
kPa). When starting the generator the oil pressure may
read a little higher, but after the engine warms up the oil
pressure should return to the correct pressure range.
3. Water Temperature Gauge — During normal operation
this gauge be should read between 167° and 203°F
(75°~95°C).
4. Charging Ammeter Gauge — Indicates the current
being supplied by the engine’s alternator which
provides current for generator’s control circuits and
battery charging system.
5. Fuel Gauge — Indicates amount of diesel fuel available.
6. Engine Warning Lamps — There are three engine
warning lamps, they are defined as follows:
a. Overheat Lamp — This lamp goes ON
when the cooling water temperature rises
abnormally. If the lamp goes ON during
normal operation of the generator, the
emergency shutdown device will stop the
engine automatically.
b. Low Oil Pressure Lamp — During
normal operation of the generator this
lamp should remain OFF. When the
Auto-OFF/Reset-Manual switch is set
to the MANUAL position to start the engine, the
lamp will be lit. When the oil pressure rises after
start-up the lamp will go OFF. If this lamp is ever
lit (ON) during normal operation of the generator,
the emergency shutdown device will stop the engine
automatically.
c. Low Fuel Level Lamp — When this lamp
is ON, it is time to stop the engine and
add fuel. Remember to let the engine cool
before adding fuel (DCA300SSC only).
d. Air Filter Alarm — When the air filter
element is clogged, this lamp goes ON
indicating the element should be
immediately cleaned or replaced.
e. Coolant Level Alarm — This lamp
goes ON when the coolant level is low.
If this lamp goes ON while the engine is
in operation, the emergency shutdown
device will automatically stop the engine.
7. Engine Speed Switch — This switch controls the
speed of the engine (low/high).
8. Pre-Heat Lamp — When ECU is placed in AUX
position, pre-heat lamp will be ON. When pre-heat
cycle is completed, lamp will turn OFF.
9. Emergency Stop Button — Push this button inward to
stop the engine in the event of an emergency. DO NOT
use this button as a means of stopping the engine.
10. Battery Switch — This switch should be set to the ON
position during normal operation. When the engine has
been stop, place this switch in the OFF position. DO
NOT turn this switch during normal operation, it could
cause damage to the electrical equipment.
page 20 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
Notes
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 21
OUTPUT TERMINAL PANEL FAMILIARIZATION
Output Terminal Panel
Output Terminal Familiarization
The Output Terminal Panel (Figure 6) shown below is
located on the right-hand side (left from control panel) of
the generator. Lift up on the cover to gain access to
receptacles and terminal lugs.
The “Output Terminal Panel ” (Figure 6) is provided with
the following:
„„Three (3) 240/139V output receptacles @ 50 amp
„„Three (3) Circuit Breakers @ 50 amps
NOTICE
Terminal legs “O” and “Ground” are considered bonded
grounds
„„Two (2) 120V GFCI receptacles @ 20 amp
„„Two (2) GFCI Circuit Breakers @ 20 amps
„„Eight (8) Output Terminal Lugs ( U, V, W, O, Ground)
Figure 6. Output Terminal Panel
page 22 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
OUTPUT TERMINAL PANEL FAMILIARIZATION
120 VAC GFCI Receptacles
There are two 120 VAC, 20 amp GFCI (Duplex Nema 5-20R)
receptacles provided on the output terminal panel. These
receptacles can be accessed in any voltage change-over
board configuration. Each receptacle is protected by a 20
amp circuit breaker. These breakers are located directly
above the GFCI receptacles. Remember the load output
(current) of both GFCI receptacles is dependent on the
load requirements of the U, V, and W output terminal lugs.
Pressing the reset button resets the GFCI receptacle after
being tripped. Pressing the test button (See Figure 7) in
the center of the receptacle will check the GFCI function.
Both receptacles should be tested at least once a month.
Each auxiliary receptacle is protected by a 50 amp circuit
breaker. These breakers are located directly above the
GFCI receptacles. Remember the load output (current) on
all three receptacles is dependent on the load requirements
of the output terminal lugs.
Turn the voltage regulator control knob (Figure 9) on the
control panel to obtain the desired voltage. Turning the knob
clockwise will increase the voltage, turning the knob
counter-clockwise will decrease the voltage.
Figure 9. Voltage Regulator Control Knob
Figure 7. G.F.C.I. Receptacle
Twist Lock Dual Voltage 120/240 VAC Receptacles
There are three 120/240V, 50 amp auxiliary twist-lock (CS6369) receptacles (Figure 8) provided on the output
terminal panel. These receptacles can only be accessed
when the voltage change-over board is configured for
single-phase 240/120 application
Figure 8. 120/240V Twist-Lock Auxiliary
Receptacles
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 23
OUTPUT TERMINAL PANEL FAMILIARIZATION
Connecting Loads
Over Current Relay
Loads can be connected to the generator by the Output
Terminal Lugs or the convenience receptacles (Figure 10).
Make sure to read the operation manual before attempting
to connect a load to the generator.
An over current relay (Figure 11) is connected to the main
circuit breaker. In the event of an overload, both the circuit
breaker and the over current relay may trip. If the circuit
breaker can not be reset, the reset button on the over
current relay must be pressed. The over current relay is
located in the control box.
To protect the output terminals from overload, a 3-pole,
800A main circuit breaker is provided. Make sure to switch
ALL circuit breakers to the OFF position prior to starting
the engine.
Figure 11. Over Current Relay
Figure 10. Connecting Loads
page 24 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
Load Application
Single Phase Load
Three Phase Load
Always be sure to check the nameplate on the generator
and equipment to insure the wattage, amperage, frequency,
and voltage requirements are satisfactorily supplied by the
generator for operating the equipment.
When calculating the power requirements for 3-phase
power use the following equation:
Generally, the wattage listed on the nameplate of the
equipment is its rated output. Equipment may require
130—150% more wattage than the rating on the nameplate,
as the wattage is influenced by the efficiency, power factor
and starting system of the equipment.
NOTICE
If 3Ø load (kVA) is not given on the equipment
nameplate, approximate 3Ø load may be determined
by multiplying voltage by amperage by 1.732
NOTICE
If wattage is not given on the equipment’s name plate,
approximate wattage may be determined by multiplying
nameplate voltage by the nameplate amperage.
WATTS = VOLTAGE x AMPERAGE
The power factor of this generator is 0.8. See Table 5 below
when connecting loads.
Table 5. Power Factor By Load
Type of Load
Power Factor
Single-phase induction motors
0.4-0.75
Electric heaters, incandescent lamps
Fluorescent lamps, mercury lamps
Electronic devices, communication
equipment
Common power tools
1.0
0.4-0.9
Load in Watts
At 100
Volts
2.5
5
0.8
Maximum Allowable Cable Length
At 200
Volts
#10 Wire
#12 Wire
#14 Wire
#16 Wire
300
600
1000 ft.
600 ft.
375 ft.
250 ft.
600
1200
500 ft.
300 ft.
200 ft.
125 ft.
7.5
900
1800
350 ft.
200 ft.
125 ft.
100 ft.
10
1200
2400
250 ft.
150 ft.
100 ft.
15
1800
3600
150 ft.
100 ft.
65 ft.
2400
4800
125 ft.
75 ft.
50 ft.
20
Motors and motor-driven equipment draw much greater
current for starting than during operation.
An inadequate size connecting cable which cannot carry the
required load can cause a voltage drop which can burn out
the appliance or tool and overheat the cable. See Table 6.
„„When connecting a resistance load such as an
incandescent lamp or electric heater, a capacity of up to
the generating set’s rated output (kW) can be used.
„„When connecting a fluorescent or mercury lamp, a
capacity of up to the generating set’s rated output (kW)
multiplied by 0.6 can be used.
„„When connecting an electric drill or other power tools,
pay close attention to the required starting current
capacity.
1.0
Table 6. Cable Selection (60 Hz, Single Phase Operation)
Current
in
Amperes
NOTICE
When connecting ordinary power tools, a capacity of up to
the generating set’s rated output (kW) multiplied by 0.8 can
be used.
DANGER
Before connecting this generator to any building’s
electrical system, a licensed electrician must install
an isolation (transfer) switch. Serious damage to
the building’s electrical system may occur without this
transfer switch.
CAUTION: Equipment damage can result from low voltage
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 25
GENERATOR OUTPUTS
Generator Output Voltages
Maximum Amps
A wide range of voltages are available to supply voltage
for many different applications. Voltages are selected by
applying jumpers (6) to the voltage change-over board
(Figure 12). To obtain some of the voltages as listed in
Table 7 (see below) will require a fine adjustment using
the voltage regulator (VR) control knob located on the
control panel.
Table 8 shows the maximum amps the generator can
provide. DO NOT exceed the maximum amps as listed.
Voltage Change-Over Board
The voltage change-over board (Figure 12) is located on
the control box, behind the generator control panel. This
board has been provided for ease of voltage selection.
Table 8. Generator Maximum Amps
Model
DCA300SSC
DCA300SSCU
Rated Voltage
Maximum Amps
Single Phase 120 Volt
666.7 amps (4 wire)
Single Phase 240 Volt
333.3 amps (4 wire)
Three Phase 240 Volt
722 amps
Three Phase 480 Volt
361 amps
Figure 12. Voltage Change-Over Board
CAUTION
NEVER attempt to place jumper plates on the voltage
change-over board while the generator is in operation.
There exist the possibility of electrocution, electrical
shock or burn, which can cause severe bodily harm
or even death!
Table 7. Voltages Available
UVWO Output
Terminal Lugs
Voltage Change-Over Board
3-Phase 240/139V Position
Voltage Change-Over Board
3-Phase 480/270V Position
3Ø Line-Line
208V
220V
240V
416V
440V
480V
1Ø Line-Neutral
120V
127V
139V
240V
254V
277V
Voltage Change-Over Board Single-Phase 240/120V Position
1Ø Line-Neutral/
Line-Line
120V
Line-Neutral
N/A
N/A
240V
Line-Line
N/A
N/A
page 26 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
GENERATOR OUTPUTS/gauge reading
how to Read the ac ammeter and ac
voltage gauges
The AC ammeter and AC voltmeter gauges are controlled
by the AC ammeter and AC voltmeter change-over
switches.
Both of these switches are located on the control panel and
DO NOT effect the generator output. They are provided to
help observe how much power is being supplied, produced
at the UVWO terminals lugs.
Before taking a reading from either gauge, configure the
Voltage Change-Over Board (Figure 13) which produces
the desired output voltage.
AC Ammeter Gauge Reading
Place the AC Ammeter Change-Over Switch (Figure 16)
in the U position and observe the current reading (load
drain) on the U terminal as indicated on the AC Ammeter
Gauge (Figure 17). This process can be repeated for
terminals V and W.
Figure 16. AC Ammeter
Change-Over Switch
Figure 17. AC Ammeter
(Amp reading on U Lug)
NOTICE
The ammeter gauge will only show a reading when
the Output Terminal Lugs are connected to a load
and in use.
Figure 13. Voltage Change-Over Board
240/3Ø Position
AC Voltmeter Gauge Reading
Place the AC Voltmeter Change-Over Switch (Figure 14)
in the W-U position and observe the phase to phase voltage
reading between the W and U terminals as indicated on
the AC Voltmeter Gauge (Figure 15).
Figure 14. AC Voltmeter
Change-Over Switch
Figure 15. AC Voltmeter Gauge
(Volt reading on W-U Lug)
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 27
OUTPUT TERMINAL PANEL CONNECTIONS
UVWO Terminal Output Voltages
Various output voltages can be obtained using the UVWO
output terminal lugs. The voltages at the terminals are
dependent on the placement of the jumpers plates (6) on
the Voltage Change-Over Board and the adjustment of
the Voltage Regulator Control Knob.
Remember the voltage change-over board determines the
range of the output voltage and can be configured in two
different positions that provide 6 different output voltages
at the UVWO output terminals. The generator is shipped
from the factory in the 240V configuration. The voltage
regulator (VR) allows the user to increase or decrease the
selected voltage.
3Ø-240V UVWO Terminal Output Voltages
3. Turn the voltage regulator knob (Figure 20) clockwise
to increase voltage output, turn counterclockwise to
decrease voltage output. Use voltage regulator
adjustment knob whenever fine tuning of the output
voltage is required
Figure 20. Voltage Regulator Knob
1Ø-240V UVWO Terminal Output Voltages
1. Make sure the voltage change-over board is jumpered
for 240V operation as shown in Figure 18.
2. Connect the load wires to the UVWO terminals as
shown in Figure 21.
1. Jumper the voltage change-over board for 240V
operation as shown in Figure 18.
Figure 21. UVWO Terminal Lugs 1Ø-240V
Connections
1Ø-120V UVWO Terminal Output Voltages
Figure 18. Voltage Change-Over Board 240V
Configuration
2. Connect the load wires to the UVWO terminals as
shown in Figure 19.
Figure 19. UVWO Terminal Lugs
1. Make sure the voltage change-over board is jumpered
for 240V operation as shown in Figure 18.
2. Adjust voltage regulator knob (Figure 20) for an output
of 208V to obtain 120V at the UVWO terminals.
3. Connect the load wires to the UVWO terminals as
shown in Figure 22.
Figure 22. UVWO Terminal Lugs 1Ø-120V
Connections
page 28 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
OUTPUT TERMINAL PANEL CONNECTIONS
3Ø-480V UVWO Terminal Output Voltages
1Ø-480V UVWO Terminal Output Voltages
1. Jumper the voltage change-over board for 480V
operation as shown in Figure 23. This configuration
uses 6 jumper plates in 3 different positions. Remember
there are 2 jumper plates at every position. Every
jumper plate must be used.
1. Make sure the voltage change-over board is jumpered
for 480V operation as shown in Figure 23.
Figure 23. Voltage Change-Over Board 480V
Configuration
2. Connect the load wires to the UVWO terminals as
shown in Figure 24.
2. Connect the load wires to the UVWO terminals as
shown in Figure 25.
Figure 25. UVWO Terminal Lugs 1Ø-480V
Connections
1Ø-277V UVWO Terminal Output Voltages
1. Make sure the voltage change-over board is jumpered
for 480V operation as shown in Figure 23.
2. Connect the load wires to the UVWO terminals as
shown in Figure 26.
Figure 24. UVWO Terminal Lugs 3Ø-480V
Connections
NOTICE
ALWAYS make sure that the connections to the UVWO
terminals are secure and tight. The possibility of arcing
exists, that could cause a fire.
Figure 26. UVWO Terminal Lugs 1Ø-277V
Connections
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 29
inspection/SETUP
Circuit Breakers
To protect the generator from an overload, a 3-pole, 800
amp, main circuit breaker is provided to protect the U,V,
and W Output Terminals from overload. In addition two
single-pole, 20 amp GFCI circuit breakers are provided to
protect the GFCI receptacles from overload. Three 50 amp
load circuit breakers have also been provided to protect the
auxiliary receptacles from overload. Make sure to switch
ALL circuit breakers to the OFF position prior to starting
the engine.
Lubrication Oil
Fill the engine crankcase with lubricating oil through the
filler hole, but DO NOT overfill. Make sure the generator is
level and verify that the oil level is maintained between the
two notches (Figure 27) on the dipstick. See Table 9 for
proper selection of engine oil.
Fuel Check
DANGER
Fuel spillage on a hot engine can cause
a fire or explosion. If fuel spillage occurs,
wipe up the spilled fuel completely to
prevent fire hazards. NEVER smoke
around or near the generator.
Refilling the Fuel System
CAUTION
ONLY properly trained personnel who have read
and understand this section should refill the fuel tank
system.
This generator has an internal fuel tank located inside
the trailer frame and may also be equipped with an
environmental fuel tank (Figure 28). ALWAYS fill the fuel
tanks with clean fresh #2 diesel fuel. DO NOT fill the fuel
tanks beyond their capacities.
Figure 27. Engine Oil Dipstick
When checking the engine oil, be sure to check if the oil is
clean. If the oil is not clean, drain the oil by removing the
oil drain plug, and refill with the specified amount of oil as
outlined in the Cummins Engine Owner’s Manual. Oil
should be warm before draining.
Other types of motor oils may be substituted if they meet
the following requirements:
„„ API Service Classification CC/SC
„„API Service Classification CC/SD
„„API Service Classification CC/SE
„„API Service Classification CC/SF
Pay attention to the fuel tank capacity when replenishing
fuel. The fuel tank cap must be closed tightly after filling.
Handle fuel in a safety container. If the container does not
have a spout, use a funnel. Wipe up any spilled fuel
immediately.
Table 9. Recommended Motor Oil
Figure 28. Internal Fuel Tank System
page 30 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
inspection/SETUP
Refueling Procedure:
WARNING
2. Open cabinet doors on the “right side” of the generator
(from generator control panel position). Remove fuel
cap and fill tank (Figure 30).
Diesel fuel and its vapors are dangerous
to your health and the surrounding
environment. Avoid skin contact and/or
inhaling fumes.
1. Level Tanks — Make sure fuel cells are level with the
ground. Failure to do so will cause fuel to spill from the
tank before reaching full capacity (Figure 29).
CAUTION
ALWAYS place trailer on firm level ground before
refueling to prevent spilling and maximize the amount
of fuel that can be pumped into the tank.
Figure 30. Fueling the Generator
3. NEVER overfill fuel tank — It is important to read the
fuel gauge when filling trailer fuel tank. DO NOT wait
for fuel to rise in filler neck (Figure 31).
Figure 29. Only Fill on Level Ground
NOTICE
ONLY use #2 diesel fuel when refueling.
Figure 31. Full Fuel Tank
CAUTION
DO NOT OVERFILL fuel system. Leave room for fuel
expansion. Fuel expands when heated (Figure 32).
Figure 32. Fuel Expansion
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 31
inspection/SETUP
Coolant (Antifreeze/Summer Coolant/
Water)
Cummins recommends antifreeze/summer coolant for use in
their engines, which can be purchased in concentrate (and
mixed with 50% demineralized water) or pre-diluted. See the
Cummins Engine Owner’s Manual for further details.
Cleaning the Radiator
The engine may overheat if the radiator fins become
overloaded with dust or debris. Periodically clean the
radiator fins with compressed air. Cleaning inside the
machine is dangerous, so clean only with the engine turned
off and the negative battery terminal disconnected.
Air Cleaner
WARNING
If adding coolant/antifreeze mix to the
radiator, DO NOT remove the radiator cap
until the unit has completely cooled. The
possibility of hot! coolant exists which can
cause severe burns.
Day-to-day addition of coolant is done from the recovery
tank. When adding coolant to the radiator, DO NOT remove
the radiator cap until the unit has completely cooled. See
Table 10 for engine, radiator, and recovery tank coolant
capacities. Make sure the coolant level in the recovery tank
is always between the “H” and the “L” markings.
Periodic cleaning/replacement is necessary. Inspect air
cleaner in accordance with the Cummins Engine Owner’s
Manual.
Fan Belt Tension
A slack fan belt may contribute to overheating, or to
insufficient charging of the battery. Inspect the fan belt for
damage and wear and adjust it in accordance with the
Cummins Engine Owner’s Manual.
The fan belt tension is proper if the fan belt bends 10 to 15
mm (Figure 33) when depressed with the thumb as shown
below.
Table 10. Coolant Capacity
Engine and Radiator
15.8 Gal (60 liters)
Reserve Tank
N/A
Operation in Freezing Weather
When operating in freezing weather, be certain the proper
amount of antifreeze (Table 11) has been added.
Table 11. Anti-Freeze
Operating Temperatures
Freezing Point
Vol %
Anti-Freeze
°C
°F
50
-37
-34
Figure 33. Fan Belt Tension
CAUTION
NEVER place hands near the belts or fan
while the generator set is running.
NOTICE
When the antifreeze is mixed with water, the antifreeze
mixing ratio must be less than 50%.
page 32 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
inspection/SETUP
Battery
When connecting battery do the following:
This unit is of negative ground DO NOT connect in reverse.
Always maintain battery fluid level between the specified
marks. Battery life will be shortened, if the fluid level are
not properly maintained. Add only distilled water when
replenishment is necessary.
1. NEVER connect the battery cables to the battery
terminals when the MPEC Control Switch is in either
the MANUAL position. ALWAYS make sure that the
MPEC Control Switch is in the OFF/RESET position
when connecting the battery.
DO NOT over fill. Check to see whether the battery
cables are loose. Poor contact may result in poor starting
or malfunctions. Always keep the terminals firmly
tightened. Coating the terminals with an approved battery
terminal treatment compound. Replace battery with only
recommended type battery. The battery type used in this
generator is BCI Group 27.
2. Place a small amount of battery terminal treatment
compound around both battery terminals. This will
ensure a good connection and will help prevent
corrosion around the battery terminals.
The battery is sufficiently charged if the specific gravity
of the battery fluid is 1.28 (at 68° F). If the specific gravity
should fall to 1.245 or lower, it indicates that the battery is
dead and needs to be recharged or replaced.
Before charging the battery with an external electric source,
be sure to disconnect the battery cables.
Battery Cable Installation
ALWAYS be sure the battery cables (Figure 34) are properly
connected to the battery terminals as shown below. The
red cable is connected to the positive terminal of the
battery, and the black cable is connected to the negative
terminal of the battery.
CAUTION
ALWAYS disconnect the negative terminal FIRST and
reconnect negative terminal LAST.
NOTICE
If the battery cable is connected incorrectly, electrical
damage to the generator will occur. Pay close attention to
the polarity of the battery when connecting the battery.
CAUTION
Inadequate battery connections may cause poor
starting of the generator, and create other malfunctions.
Alternator
The polarity of the alternator is negative grounding type.
When an inverted circuit connection takes place, the
circuit will be in short circuit instantaneously resulting the
alternator failure.
DO NOT put water directly on the alternator. Entry of water
into the alternator can cause corrosion and damage the
alternator.
Wiring
Inspect the entire generator 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, and fuel hose connections for
wear and tightness. Tighten all hose clamps and check
hoses for leaks.
Figure 34. Battery Connections
If any hose (fuel or oil) lines are defective replace them
immediately.
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 33
GENERATOR START-UP PROCEDURE (MANUAL)
Before Starting
Starting (Manual)
CAUTION
The engine’s exhaust contains harmful emissions.
ALWAYS have adequate ventilation when operating.
Direct exhaust away from nearby personnel.
1. Place the engine speed switch (Figure 37) in the LOW
(down) position.
Figure 37. Engine Speed Switch (Low)
WARNING
NEVER manually start the engine with the main, GFCI or
auxiliary circuit breakers in the ON (closed) position.
2. Place the MPEC control switch in the MANUAL
position to start the engine (Figure 38).
1. Place the main, G.F.C.I., and aux. circuit breakers (Figure
35) in the OFF position prior to starting the engine.
Figure 38. MPEC Control Switch
(Manual Position)
Figure 35. Main, Aux. and GFCI
Circuit Breakers (OFF)
3. Depending on the temperature of the coolant (cold
weather conditions), the pre-heat lamp (Figure 39) will
light (ON) and remain on until the pre-heating cycle has
been completed. After completion of the pre-heating
cycle, the light will go OFF and the engine will start up
automatically.
2. Make sure the voltage change-over board has been
configured for the desired output voltage.
3. Connect the load to the receptacles or the output
terminal lugs as shown in Figure 10. These load
connection points can be found on the output terminal
panel and the output terminal panel’s hard wire hookup
panel.
4. Tighten terminal nuts securely to prevent load wires
from slipping out.
5. Close all engine enclosure doors (Figure 36).
Figure 39. Pre-Heat Button
4. Once the engine starts, let the engine run for 1-2
minutes. Listen for any abnormal noises. If any
abnormalities exist, shut down the engine and correct
the problem. If the engine is running smoothly, place
the engine speed switch (Figure 40) in the HIGH (up)
position.
Figure 40. Engine Speed Switch (High)
CORRECT
INCORRECT
5. Verify that the engine running
status LED on the MPEC unit
(Figure 41) is ON (lit) after the
engine has been started.
Figure 36. Engine Enclosure Doors
Figure 41. Engine Running LED (ON)
page 34 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
GENERATOR START-UP PROCEDURE (MANUAL)
6. The generator’s frequency meter (Figure 42) should be
displaying the 60 cycle output frequency in HERTZ.
11. The coolant temperature gauge (Figure 47) will
indicate the coolant temperature. Under normal
operating conditions the coolant temperature should
be between 167°~203°F (75°~95°C) (Green Zone).
Figure 47. Coolant Temperature Gauge
Figure 42. Frequency Meter
7. The generator’s AC-voltmeter (Figure 43) will display
the generator’s output in VOLTS. If the voltage is not
within the specified tolerance,
12. The tachometer gauge (Figure 48) will indicate the
speed of the engine when the generator is operating.
Under normal operating conditions this speed is
approximately 1800 RPM’s.
Figure 48. Engine Tachometer Gauge
Figure 43. Voltmeter
8. Use the voltage adjustment control knob (Figure 44)
to increase or decrease the desired voltage.
13. Place the main, GFCI, and aux. circuit breakers in the
ON position (Figure 49).
Figure 44. Voltage Adjust Control Knob
9. The ammeter (Figure 45) will indicate zero amps with
no load applied. When a load is applied, the ammeter
will indicate the amount of current that the load is
drawing from the generator.
Figure 49. Main, Aux. and GFCI
Circuit Breakers (ON)
14. Observe the generator’s ammeter (Figure 50) and
verify it reads the anticipated amount of current with
respect to the load. The ammeter will only display a
current reading if a load is in use.
Figure 45. Ammeter (No Load)
10. The engine oil pressure gauge (Figure 46) will indicate
the oil pressure of the engine. Under normal operating
conditions the oil pressure is approximately 28 to 85
psi. (193~586 kPa).
Figure 50. Ammeter (Load)
15. The generator will run until manually stopped or an
abnormal condition occurs.
Figure 46. Oil Pressure Gauge
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 35
GENERATOR START-UP PROCEDURE (AUTO MODE)
Starting (Auto Mode)
DANGER
Before connecting this generator to any
building’s electrical system, a licensed
electrician must install an isolation
(transfer) switch. Serious damage to
the building’s electrical system may occur without this
transfer switch.
CAUTION
When connecting the generator to a isolation (transfer)
switch, ALWAYS have power applied to the generator’s
internal battery charger. This will ensure that the engine
will not fail due to a dead battery.
When starting generator in AUTO mode use the “Manual
Start-up” procedure except where noted (see below).
1. Perform steps 1 through 5 in the Before Starting section
as outlined in the Manual Starting Procedure.
2. Place the engine speed switch (Figure 51) in the
HIGH position
Figure 51. Engine Speed Switch (High)
3. Place the MPEC Control Switch (Figure 52) in the
AUTO position.
NOTICE
When the generator is set in the AUTO mode, the
generator will automatically start in the event of
commercial power falling below a prescribed level
by means of a contact closure that is generated
automatically by a transfer switch.
Figure 52. MPEC Control Switch (AUTO)
4. Continue operating the generator as outlined in the
Manual Start-up procedure (start at step 5).
WARNING
When running the generator in the AUTO mode,
remember the generator can start up at any time without
warning. NEVER attempt to perform any maintenance
when the generator is in the auto mode.
CAUTION
The engine speed switch must be set to the “High”
position when running in the auto-start mode. Failing
to set the switch in the proper position can result in
damage to your generator when it turns on.
NOTICE
When the MPEC control switch is placed in the AUTO
position, the engine glow plugs will be warmed and the
engine will start automatically.
page 36 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
GENERATOR SHUT-DOWN PROCEDURES
WARNING
NEVER stop the engine suddenly except in an
emergency.
Normal Shutdown Procedure
Emergency Shutdown Procedure
1. To stop the engine in the event of an emergency, PUSH
the emergency stop button (Figure 55) inward. This
button is located on the engine operating panel, see
Figure 5.
To shutdown the generator, use the following procedure:
1. Place both the MAIN, GFCI and LOAD circuit breakers
as shown in Figure 35 to the OFF position.
2. Place the engine speed switch (Figure 53) in the “LOW”
(down) position.
Figure 55. Emergency Stop Button
Figure 53. Engine Speed Switch (Low)
3. Let the engine cool by running it at low speed for 3-5
minutes with no load applied.
4. Place the MPEC Control Switch (Figure 54) to the
OFF/RESET position.
Figure 54. MPEC Control Switch (Off/Reset)
5. Verify that all the status LEDs on the MPEC display
are OFF (not lit).
6. Remove all loads from the generator.
7. Inspect entire generator for any damage or loosening
of components that may have occurred during
operation.
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 37
Maintenance
10 Hrs
DAILY
X
X
X
X
X
X
Table 12. Inspection/Maintenance
Engine
Generator
Check Engine Fluid Levels
Check Air Cleaner
Check Battery Acid Level
Check Fan Belt Condition
Check for Leaks
Check for Loosening of Parts
Replace Engine Oil and Filter * 1
Clean Air Filter
Check Fuel Filter/Water Separator Bowl
Clean Unit, Inside and Outside
Change Fuel Filter
Clean Radiator and Check Coolant Protection Level*2
Replace Air Filter Element * 3
Check all Hoses and Clamps * 4
Clean Inside of Fuel Tank
Measure Insulation Resistance Over 3M ohms
Check Rotor Rear Support Bearing
250 Hrs
500 Hrs
1000
Hrs
X
X
X
X
X
X
X
X
X
X
X
*1 Replace engine oil and filter at 100 hours, first time only.
*2 Add “Supplemental Coolant Additives (SCA’S)” to recharge the engine coolant.
*3 Replace primary air filter element when restriction indicator shows a vacuum of 625 mm (25 in. H20).
*4 If blowby hose needs to be replaced, ensure that the slope of the blowby hose is at least a 1/2 inch per foot,
with no sags or dips that could collect moisture and/or oil.
General Inspection
Prior to each use, the generator should be cleaned and
inspected for deficiencies. Check for loose, missing or
damaged nuts, bolts or other fasteners. Also check for
fuel, oil, and coolant leaks. Use Table 12 as a general
maintenance guideline Engine Side (Refer to the Engine
Instruction Manual)
Air Cleaner
Every 250 hours: Remove air cleaner element (Figure 56)
and clean the heavy duty paper element with light spray of
compressed air. Replace the air cleaner as needed.
Air Cleaner with Dust Indicator
This indicator (Figure 56) is attached to the air cleaner.
When the air cleaner element is clogged, air intake
restriction becomes greater and the dust indicator signal
shows RED meaning the element needs changing or
service. After changing the air element, press the dust
indicator button to reset the indicator.
Figure 56. Air Cleaner/Indicator
NOTICE
The air filter should not be changed until the indicator
reads “RED”. Dispose of old air filter. It may not be
cleaned or reused..
page 38 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
Maintenance
If the engine is operating in very dusty or dry grass
conditions, a clogged air cleaner will result. This can lead to
a loss of power, excessive carbon buildup in the combustion
chamber and high fuel consumption. Change air cleaner
more frequently if these conditions exists.
Fuel Addition
Add diesel fuel (the grade may vary according to season
and locations).
Removing Water from the Fuel Tank
After prolonged use, water and other impurities accumulate
in the bottom of the tank. Occasionally inspect the fuel
tank for water contamination and drain the contents if
required.
During cold weather, the more empty volume inside the
tank, the easier it is for water to condense. This can be
reduced by keeping the tank full with diesel fuel.
Cleaning Inside the Fuel Tank
Drain the fuel inside the fuel tank completely. Using a spray
washer (Figure 57) wash out any deposits or debris that
have accumulated inside the fuel tank.
Fuel Tank Inspection
In addition to cleaning the fuel tank, the following
components should be inspected for wear:
„„Rubber Suspension — look for signs of wear or
deformity due to contact with oil. Replace the rubber
suspension if necessary.
„„Fuel Hoses — inspect nylon and rubber hoses for signs
of wear, deterioration and hardening.
„„Fuel Tank Lining — inspect the fuel tank lining for signs
of excessive amounts of oil or other foreign matter.
Replacing Fuel Filter
„„Replace the fuel filter cartridge with new one every 500
hours or so.
„„Loosen the drain plug at the lower top of the fuel filter.
Drain the fuel in the fuel body together with the mixed
water. DO NOT spill the fuel during disassembly.
„„Vent any air
Air Removal
If air enters the fuel injection system of a diesel engine,
starting becomes impossible. After running out of fuel,
or after disassembling the fuel system, bleed the system
according to the following procedure. See the Cummins
Engine Manual for details.
Figure 57. Fuel Tank Cleaning
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 39
Maintenance
To restart after running out of fuel, turn the switch to the
“ON” position for 15-30 seconds. Try again, if needed. This
unit is equipped with an automatic air bleeding system.
Check Oil Level
Check the crankcase oil level prior to each use, or when the
fuel tank is filled. Insufficient oil may cause severe damage
to the engine. Make sure the generator is level. The oil
level must be between the two notches on the dipstick as
shown in Figure 27.
Radiator Cleaning
The radiator (Figure 58) should be sprayed (cleaned) with
a high pressure washer when excessive amounts of dirt
and debris have accumulated on the cooling fins or tube.
When using a high pressure washer, stand at least 5 feet
(1.5 meters) away from the radiator to prevent damage to
the fins and tube.
Replacing Oil Filter
„„Remove the old oil filter.
„„Apply a film of oil to the gasket on the new oil filter.
„„Install the new oil filter.
„„After the oil cartridge has been replaced, the engine oil
will drop slightly. Run the engine for a while and check for
leaks before adding more oil if needed. Clean excessive
oil from engine.
Flushing Out Radiator and Replacing
Coolant
„„Open both cocks located at the crankcase side and at
the lower part of the radiator and drain coolant. Open
the radiator cap while draining. Remove the overflow
tank and drain.
Figure 58. Radiator Cleaning
Generator Storage
For long term storage of the generator the following is
recommended:
„„Drain the fuel tank completely. Treat with a fuel stabilizer
if necessary.
„„Check hoses for softening and kinks. Check clamps for
signs of leakage.
„„Completely drain the oil from the crankcase and refill if
necessary with fresh oil.
„„Tighten both cocks and replace the overflow tank.
„„Clean the entire generator, internal and external.
„„Replace with coolant as recommended by the engine
manufacturer.
„„Cover the generating set and store in a clean, dry place.
„„Close radiator cap tightly.
„„Flush the radiator by running clean tap water through
radiator until signs of rust and dirt are removed. DO
NOT clean radiator core with any objects, such as a
screwdriver.
„„Disconnect the battery.
„„Make sure engine coolant is at proper level.
„„If generator is mounted on a trailer, jack trailer up and
place on blocks so tires do not touch the ground or block
and completely remove the tires.
WARNING
Allow engine to cool when flushing out
radiator. Flushing the radiator while hot
could cause serious burns from water or
steam.
page 40 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
Maintenance
Jacket Water Heater and Internal Battery
Charger 120 VAC Input Receptacles
(OPTIONAL)
This generator can be optionally equipped with two 120
VAC, 20 amp input receptacles located on the output
terminal panel.
The purpose of these receptacles is to provide power via
commercial power to the jacket water heater and internal
battery charger.
If the generator will be used daily, the battery should
normally not require charging. If the generator will be idle
(not used) for long periods of time, apply power to the
battery charger receptacle via commercial power using a
power cord of adequate size.
NOTICE
To ensure adequate starting capability, always have
power applied to the generator's internal battery
charger..
These receptacles will ONLY function when commercial
power has been supplied to them (Figure 59). To apply
commercial power to these receptacles, a power cord of
adequate size will be required (See Table 6).
When using the generator in hot climates there is no reason
to apply power to jacket water heater. However, if the
generator will be used in cold climates it is always a good
idea to apply power to the jacket water heater at all times.
To apply power to the jacket water heater simply apply
power to the jacket water heater receptacle via commercial
power using an power cord of adequate size.
Figure 59. Battery Charger and Jacket Water
Heater Power Connections
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 41
Trailer Maintenance
Trailer Maintenance
This section is intended to provide the user with generic
trailer service and maintenance information. The service
and maintenance guidelines referenced in this section refer
to a wide range of trailers.
Remember periodic inspection of the trailer will ensure safe
towing of the generator and will prevent personal injury and
damage to the equipment.
The definitions below describe some of the major
components of a typical trailer that would be used with
the generator.
1. Fuel Cell — Provides an adequate amount of fuel for
the equipment in use. Fuel cells must be empty when
transporting equipment.
2. Braking System — System employed in stopping
the trailer. Typical braking systems are electric, surge,
hydraulic, hydraulic-surge and air.
3. GVWR — Gross Vehicle Weight Rating (GVWR) is
the maximum number of pounds the trailer can carry,
including the fuel cell (empty).
4. Frame Length — Measurement is from the ball hitch
to the rear bumper (reflector).
5. Frame Width — Measurement is from fender to
fender
6. Jack Stand — Trailer support device with maximum
pound requirement from the tongue of the trailer.
7. Coupler — Type of hitch used on the trailer for
towing.
8. Tire Size — Indicates the diameter of the tire in
inches (10,12,14, etc.), and the width in millimeters
(175,185,205, etc.). The tire diameter must match the
diameter of the tire rim.
9. Tire Ply — The tire ply (layers) number is rated in
letters; 2-ply,4-ply,6-ply, etc.
10. Wheel Hub — The wheel hub is connected to the
trailer’s axle.
11. Tire Rim — Tires mounted on a tire rim. The tire rim
must match the size of the tire.
12. Lug Nuts — Used to secure the wheel to the wheel
hub. Always use a torque wrench to tighten down
the lug nuts. See Table 16 and Figure 62 for lug nut
tightening and sequence.
13. Axle — Indicates the maximum weight the axle can
support in pounds, and the diameter of the axle
expressed in inches. Please note that some trailers
have a double axle. This will be shown as 2-6000 lbs.,
meaning two axles with a total weight capacity of 6000
pounds.
14. Suspension — Protects the trailer chassis from shocks
transmitted through the wheels. Types of suspension
used are leaf, Q-flex, and air ride.
15. Electrical — Electrical connectors (looms) are provided
with the trailer so the brake lights and turn signals can
be connected to the towing vehicle.
16. Application — Indicates which units can be employed
on a particular trailer.
page 42 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
Trailer Maintenance
Brakes
Hydraulic Surge Brakes
Trailer brakes should be inspected the first 200 miles of
operation. This will allow the brake shoes and drums to seat
properly. After the first 200 mile interval, inspect the brakes
every 3,000 miles. If driving over rough terrain, inspect the
brakes more frequently.
Figure 60 displays the major hydraulic surge brake
components that will require inspection and maintenance.
Please inspect these components as required using steps
1 through 8 and Table 13 as listed below:
Hydraulic surge brakes (Figure 60) should not require any
special attention with the exception of routine maintenance
such as shoe and lining replacement. Brake lines should
be periodically checked for cracks, kinks, or blockage.
Brake Adjustment
1. Place the trailer on jack stands. Make sure the jack
stands are placed on secure level ground.
2. Check the wheel and drum for free rotation.
3. Remove the adjusting hole cover from the adjusting
slot at the bottom brake backing plate.
4. With a screwdriver or standard adjusting tool, rotate
the star wheel of the adjuster assembly to expand the
brake shoes.
5. Adjust the brake shoes outward until the pressure of
the lining against the wheel drum makes the wheel
difficult to turn.
6. Adjust, rotate the star wheel in the opposite direction
until the wheel rotates freely with slight lining drag.
7. Replace the adjusting hole cover and lower the trailer
to the ground.
8. Repeat steps 1 through 7 on the remaining brakes.
Figure 60. Hydraulic Brake Components
Actuator
Hydraulic surge braking requires the installation of an
actuator at the tongue of the trailer. Remember the surge
or push of the trailer toward the tow vehicle automatically
synchronizes the trailer brakes with the tow vehicle brakes.
As the trailer pushes against the tow vehicle the actuator
telescopes together and applies force to the master cylinder,
supplying hydraulic pressure to the trailer brakes.
Periodically check and test the surge “actuator” to make sure that
it is functioning correctly. Never use an undersize actuator.
Table 13. Hydraulic Brake Troubleshooting
Symptom
Possible Cause
Solution
No Brakes
Brake line broken or kinked?
Repair or replace.
Brake lining glazed?
Reburnish or replace.
Weak Brakes or Brakes Pull to
One Side
Locking Brakes
Noisy Brakes
Dragging Brakes
Trailer overloaded?
Correct weight.
Brake drums scored or grooved?
Machine or replace.
Tire pressure correct?
Inflate all tires equally.
Tires unmatched on the same axle?
Match tires.
Brake components loose, bent or
broken?
Replace components.
Brake drums out-of-round?
Replace.
System lubricated?
Lubricate.
Brake components correct?
Replace and correct.
Brake lining thickness incorrect or
not adjusted correctly?
Install new shoes and
linings.
Enough brake fluid or correct fluid?
Replace rubber parts
fill with dot 4 fluid.
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 43
Trailer Maintenance
Tires/Wheels/Lug Nuts
Suspension
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.
The leaf suspension springs and associated components
(Figure 61) 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. Torqued suspension components
as detailed in Table 15.
CAUTION
ALWAYS wear safety glasses when
removing or installing force fitted parts.
Failure to comply may result in serious
injury.
CAUTION
DO NOT attempt to repair or modify a
wheel. DO NOT install in inner tube to
correct a leak through the rim. If the rim is
cracked, the air pressure in the inner tube
may cause pieces of the rim to explode (break off) with
great force and cause serious eye or bodily injury.
Figure 61. Major Suspension Components
Tire 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 14 (Tire Wear Troubleshooting) will help pinpoint the
causes and solutions of tire wear problems.
Table 14. Tire Wear Troubleshooting
Spring Eye Bolt
Wear Pattern
Cause
Item
Torque (Ft.-Lbs.)
3/8" U-Bolt
Min-30 Max-35
7/16" U-Bolt
Min-45 Max-60
1/2" U-Bolt
Min-45 Max-60
Shackle Bolt
Snug fit only. Parts must rotate freely.
Locking nuts or cotter pins are
provided to retain nut-bolt assembly.
Solution
Shoulder Type
Shackle Bolt
Center Wear
Over inflation.
Adjust pressure to particular
load per tire manufacturer.
Edge Wear
Under inflation.
Adjust pressure to particular
load per tire manufacturer.
Side Wear
Loss of camber
or overloading.
Make sure load does not
exceed axle rating.
Align wheels.
Toe Wear
Incorrect toe-in.
Align wheels.
Cupping
Out-of-balance.
Check bearing adjustment
and balance tires.
Wheel lockup and
tire skidding.
Avoid sudden stops when
possible and adjust brakes.
Flat Spots
Table 15. Suspension Torque Requirements
Min-30 Max-50
page 44 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
Trailer Maintenance
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 (see Figure 62). DO
NOT torque the wheel lug nuts all the way down.
Tighten each lug nut in 3 separate passes as defined
by Table 16.
3. After first road use, retorque all lug nuts in sequence.
Check all wheel lug nuts periodically.
Table 16. 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 62. Wheel Lug Nuts
Tightening Sequence
NOTICE
NEVER use an pneumatic air gun to tighten wheel
lug nuts.
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 45
Trailer Wiring Diagram
Figure 63. Trailer/Towing Vehicle Wiring Diagram
page 46 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
Generator Wiring Diagram
Figure 64. Generator Wiring Diagram
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 47
Engine Wiring Diagram
Figure 65. Engine Wiring Diagram
page 48 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
NOTES
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 49
Troubleshooting (Generator)
Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a
breakdown, use Table 17 shown below for diagnosis of the Generator. If the problem cannot be remedied, consult our
company’s business office or service plant.
Symptom
No Voltage Output
Low Voltage Output
High Voltage Output
Circuit Breaker Tripped
Table 17. Generator Troubleshooting
Possible Problem
Solution
AC Voltmeter defective?
Check output voltage using a voltmeter.
Is wiring connection loose?
Check wiring and repair.
Is AVR defective?
Replace if necessary.
Defective Rotating Rectifier? Check and replace.
Defective Exciter Field?
Check for approximately 19 ohms across J & K on CN1
Is engine speed correct?
Turn engine throttle lever to “High”.
Is wiring connections loose? Check wiring and repair.
Defective AVR?
Replace if necessary.
Is wiring connections loose? Check wiring and repair.
Defective AVR?
Replace if necessary.
Short Circuit in load?
Check load and repair.
Over current?
Confirm load requirements and reduce.
Defective circuit breaker?
Check and replace.
Over current Relay actuated? Confirm load requirement and replace.
page 50 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
Troubleshooting (Engine Controller)
Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown,
use Table 18 (Engine Controller Troubleshooting) as a basic guideline for troubleshooting the Microprocessor Engine Controller
unit (MPEC). If the problem cannot be remedied, consult our company's business office or service plant.
Table 18. Engine Controller Troubleshooting (MPEC)
Symptom
Possible Problem
Solution
Low oil level?
Fill oil level.
Oil pressure sending unit failure?
Replace oil pressure sending unit.
Low oil pressure light is on.
Time delay malfunction in controller?
Refer to dealer.
Wire shorted?
Inspect/repair wire.
Low coolant level?
Fill coolant level.
Low coolant level light is on.
Sending unit failure?
Replace sending unit.
(Optionally installed)
Low battery voltage?
Replace/charge battery.
Fan belt tension incorrect?
Tighten/replace fan belt.
Air flow is not circulating through radiator? Clean/repair radiator grill.
Doors open?
Close doors.
Exhaust leaking?
Replace/repair gaskets or faulty part.
High coolant temperature
light is on.
Generator being overloaded?
Check/reduce load.
Thermostat failure?
Replace thermostat.
Air intake blocked?
Clean all air intakes.
Temperature switch failure
Replace temperature switch.
No or low fuel?
Fill fuel level.
Overcrank light is on.
Controller needs to be calibrated?
Refer to dealer.
RPM engine speed too high?
Adjust RPM.
Governor actuator needs to be adjusted? Adjust governor actuator.
Overspeed light is on.
Governor controller needs to be adjusted? Adjust governor controller.
Engine controller needs to be calibrated? Refer to dealer.
Magnetic pick up out of adjustment?
Adjust magnetic pick up.
Loss of MPU light(s) or on.
Magnetic pick up dirty?
Clean magnetic pick up.
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 51
Troubleshooting (Diagnostic lamp)
The engine controller of this generator diagnoses problems
that arise from the engine control system and the engine
itself. Press the diagnostic button (Figure 66) on the
diagnostic panel to determine if an engine malfunction has
occurred.
Figure 66. Diagnostic Panel
Method of Operation
1. Normally, the diagnostic lamp will be dimly lit when
the MPEC Control Switch is placed in the MANUAL
position.
2. If engine trouble occurs, the diagnostic lamp will be
brightly lit as long as the control switch is left in the
manual position.
3. The diagnostic lamp will indicate that an engine
malfunction has occurred.
NOTICE
For a complete understanding of error codes and
troubleshooting procedures, refer to the enclosed
engine instruction manual
NOTICE
If the engine is cranked while the diagnostic switch
is in the “ON” position, the engine will not be stopped
even if the starter switch is turned to the “OFF” position.
In such case, turn the diagnostic switch to the “OFF”
position..
page 52 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
notes
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 53
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 54 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
Suggested Spare Parts
dca300ssC/dca300ssCUWHISPERWATT
GENERATOR with cummings qsl9-g3 DIESEL
ENGINE
1 to 3 units
Qty.P/N
Description
1............0602015120...........HOSE, RADIATOR UPPER engine
1............0602015121...........HOSE, RADIATOR UPPER/lower
1............0602015122...........HOSE, RADIATOR LOWER
3............0602015244...........BELT, fan
1............4921744.................SENSOR, oil pressure
1............0602122272...........OIL PRESSURE UNIT
1............0602123267...........WATER TEMPERATURE UNIT (DCA300SSC)
1............0602123261...........WATER TEMPERATURE UNIT (DCA300SSCU)
1............0602210189...........WATER TEMP. Switch ENGINE
1............0602123290...........SWITCH, COOLANT LEVEL
6............0810105400...........FILTER, FUEL TANK (DCA300SSC)
6............0602042588...........FUEL FILTER cartridge
6............0602042589...........cartridge water seperator
6............0602041224...........FILTER, OIL CARTRIDGE
6............0602045193...........FILTER, coolant CARTRIDGE
3............0602046638...........ELEMENT AIR CLEANER OUTER
3............0602046639...........ELEMENT AIR CLEANER INNER
1............0601808803...........CIRCUIT BREAKER 1P 20A
1............0601808804...........CIRCUIT BREAKER 2P 50A
2............LY2DUS24VDC.....RELAY
NOTICE
Part number on this Suggested Spare Parts list may
supersede/replace the P/N shown in the text pages of
this book.
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 55
GENERATOR ASSY.
page 56 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
GENERATOR ASSY.
NO.
PART NO.
1
C2110000002
1-1#
1-2#
0601842402
1-3#
0601823282
1-4#
0018205020
1-4A#
0040005000
1-4B#
0041205000
1-5#
8201070002
1-6#
8201611004
1-7#
C3164200004
1-8#
8201015003
1-9#
0012116045
1-10#
0042616000
1-11#
0601000209
1-12#
C3112500004
1-13#
0071906315
2
C2163400003
2
M5163400103
3
0343206200
4
0043606000
5#
0010312040
5A#
0042512000
6
C2130100103
6-1
0226200430
6-2
8201323004
6-3
0223300140
6-4
8201323103
6-5
0221200350
6-6
0010110035
6-6A
0041210000
6-7
C2132200003
6-8
0226000275
6-9
0225000500
6-10
0017106016
6-11
0601850144
7
C3154000002
8
C3138000003
9
0012110080
9 A
0042610000
9 B
0041210000
10
0017112045
11
C3154300104
12
C3154300004
13
0010106060
13A
0040006000
13B
0041206000
PART NAME
QTY.
REMARKS
ROTOR ASSY...........................................1.............. INCLUDES ITEMS W/#
FIELD ASSY
1
RESISTOR, 80W 300KW
2
RECTIFIER
1
HEX HD. CAP SCREW
2
WASHER, LOCK
2
WASHER, FLAT
2
FAN
1
COUPLING DISK
12
WASHER, COUPLING HUB
1
BALANCING PLATE..................................1.............. PURCHASE ITEM 1-11 AS A SET
HEX HEAD BOLT
10
WASHER, LOCK
10
BALANCING WEIGHT KIT
1
BEARING FLANGE
1
BEARING
1
COUPLING RING......................................1.............. DCA300SSC
COUPLING RING......................................1.............. DCA300SSCU
HEX HEAD BOLT
8
WASHER, LOCK
8
HEX HEAD BOLT
12
WASHER, LOCK
12
STATOR ASSY
1
RUBBER SEAL
1
CLAMPER
1
RUBBER SEAL
1
CLAMPER
1
RUBBER SEAL
1
HEX HEAD BOLT
2
WASHER, FLAT
2
COVER
1
RUBBER SEAL
2
RUBBER SEAL
1
HEX HEAD BOLT
6
GROMMET
1
END BRACKET
1
FIELD ASSY, EXCITER
1
HEX HEAD BOLT
4
WASHER, LOCK
4
WASHER, FLAT
4
HEX HEAD BOLT
8
COVER, BEARING
1
GASKET, BEARING
1
HEX HEAD BOLT
4
WASHER, LOCK
4
WASHER, FLAT
4
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 57
GENERATOR ASSY. (continued)
page 58 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
GENERATOR ASSY. (continued)
NO.
14
15
16
17
17A
18
19
20
20A
21
22
22A
22B
23
24
24A
PART NO.
C3154400003
0017106015
C3164600103
0010310030
0042510000
C2163700004
0070506208
0010312040
0042512000
C3132300014
0010106030
0041206000
0600815000
0605000012
0030020000
0040020000
PART NAME
SUCTION COVER
HEX HEAD BOLT
COUPLING ADAPTER
HEX HEAD BOLT
WASHER, LOCK
SPACER, BEARING
BEARING, 6208ZZ
HEX HEAD BOLT
WASHER, LOCK
COVER, FAN
HEX HEAD BOLT
WASHER, FLAT
NUT
RUBBER SUSPENSION
HEX NUT
WASHER, LOCK
QTY.
1
8
1
12
12
1
1
16
16
1
1
1
1
2
4
4
REMARKS
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 59
control box ASSY.
page 60 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
control box ASSY.
NO.
1
2
3
4
4
4-1
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
23A
24
25
26
26A
26B
26C
27
28
28A
29
30
31
32
33
33A
33B
34
35
36
37
38
36
PART NO.
M5213000002
0601809659
0027106015
0601807513
0601807519
JGJGJGJGJG
C2261600204
0017108020
0601820604
0027106015
0601842468
0027103010
C2274000103
8201852104
0017108030
C2277200004
8201853104
8201852504
0801830704
0040012000
0041412000
0017110030
0601820847
0601820840
0027104016
0207004000
0601815153
0027104016
0601802218
0601802149
0601802131
0601802133
0027103020
C3358201704
0601806644
0601802410
0017106016
M5260500003
0017108020
LY2DUS24V
PTF08A
PYCA1
0027104020
0601823240
0027104020
M5260500204
0602103090
0027104020
PART NAME
QTY.
REMARKS
CONTROL BOX
1
CURRENT TRANSFORMER
3
MACHINE SCREW
6
CIRCUIT BREAKER, 800A..........................1.................DCA300SSC
CIRCUIT BREAKER, 800A..........................1.................DCA300SSCU
BUS BAR.........................................................................DCA300SSCU
BRACKET, CIRCUIT BREAKER
1
HEX HEAD BOLT
4
AUTOMATIC VOLTAGE REGULATOR
1
MACHINE SCREW
4
RESISTOR, 5W 150 OHM
1
MACHINE SCREW
2
CHANGE- OVER BOARD, VOLTAGE
1
CHANGE TERMINAL
10
HEX HEAD BOLT
20
TERMINAL PLATE
3
CHARGE PLATE
6
HEX HEAD BOLT
13
HEX HEAD BOLT
13
WASHER, LOCK
26
WASHER, FLAT
26
HEX HEAD BOLT
4
OVER CURRENT RELAY
1
OVER CURRENT RELAY
1
MACHINE SCREW
2
HEX NUT
2
TERMINAL BOARD
1
MACHINE SCREW
2
HOLDER, FUSE
1
FUSE (LEFT SIDE), 10A
1
FUSE (CENTER), 1A
1
FUSE (RIGHT), 5A
1
MACHINE SCREW
2
FUSE HOLDER ASSY
1
FUSE, 30A
1
BRACKET, FUSE HOLDER
1
HEX HEAD BOLT
1
SET PANEL , ELECTRIC PARTS
1
HEX HEAD BOLT
4
RELAY..........................................................4.................REPLACES P/N 0601827655
SOCKET.......................................................4.................REPLACES P/N 0601823109
HOLDER......................................................4.................REPLACES P/N 0601824400
MACHINE SCREW
8
RECTIFIER
2
MACHINE SCREW
2
BRACKET
1
DIAGNOSTIC LAMP
2
MACHINE SCREW
2
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 61
CONTROL BOX ASSY. (continued)
page 62 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
CONTROL BOX ASSY. (continued)
NO.
37
38
38A
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
55A
56
57
58
59
60
61
61A
62
63
63A
63B
63C
64
65
66
67
68
69
70
71
72
73
74
PART NO.
M5260500204
0602103090
0601810244
0601831670
0601831205
0601830746
0601830710
0601840009
0017106016
0602201455
0017106016
C2224000503
C2224001504
0605011211
0601807622
0601806979
0601801040
0601806887
0601801041
0601810072
0601810261
0601840073
0601840121
ECU9988N220V
0601830765
0601810171
0027104020
0207004000
0601830710
C9221100004
0040008000
0041208000
0080200007
0017108040
3871824004
0041206000
0605010502
C2214500004
0017108020
C2214300004
0017108020
C2214400504
0017108020
0017110025
PART NAME
QTY.
REMARKS
BRACKET
1
DIAGNOSTIC LAMP
2
BULB, DC28V
2
DIAGNOSTIC BUTTON
1
RESET BUTTON
1
LOW IDLE SPEED SWITCH
1
DIAGNOSTIC SWITCH
1
RHEOSTAT, 2W 5k OHM
1
HEX HEAD BOLT
4
RELAY, HEATER
1
HEX HEAD BOLT
2
CONTROL PANEL
1
CONTROL PANEL
1
PIN
2
FREQUENCY METER, 45~65Hz 220V
1
AC AMMETER, 0~1000A
1
CHANGE- OVER SWITCH, AMMETER
1
AC VOLTMETER, 0~600V
1
CHANGE- OVER SWITCH, VOLTMETER 1
PILOT LAMP
1
BULB, 13W
1
RHEOSTAT (VR), 2W 1K OHM
1
KNOB
1
ENGINE CONTROLLER.................................. 1................ REPLACES P/N 0602202545
SWITCH
1
PANEL LIGHT, DC24V
1
MACHINE SCREW
2
HEX NUT
2
SWITCH, PANEL LIGHT
1
HEX HEAD BOLT
2
WASHER, LOCK
2
WASHER, FLAT
2
SNAP RING
2
HEX HEAD BOLT
4
STOPPER, CONTROL PANEL
1
WASHER, FLAT
1
SNAP PIN
1
COVER, CONTROL BOX
1
HEX HEAD BOLT
8
SIDE PANEL, CONTROL BOX
1
HEX HEAD BOLT
4
PANEL, CONTROL BOX
1
HEX HEAD BOLT
9
HEX HEAD BOLT
4
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 63
engine AND Radiator ASSY.
page 64 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
engine AND Radiator ASSY.
NO.
1
1A
1-1
1-1A
1-2
1-3
1-4
1-5
1-6
1-7
2
3
3A
3B
3C
3C
4
5
5A
6
7
8
9
10
11
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
PART NO.
C2923200204
0602015244
0602046638
0602046639
0602041224
0602045193
0602042588
0602042589
0602040759
0602040679
M5303200004
0010118050
0030018000
0040018000
0041618000
0041218000
0605000011
0030016000
0040016000
0602012737
0010116050
0030016000
0040016000
0041216000
C2311101104
M5310200204
0017112025
0602013260
0602014820
0602011500
0602015120
0602015121
0602015122
0602015301
0602015123
0602015302
0602015410
0602011500
0602014821
0602013261
0602015124
0602015303
0602022563
0602022561
0603306590
0603300285
0605511395
PART NAME
QTY.
REMARKS
ENGINE, QSL9-G3
1
BELT, FAN
1
ELEMENT, AIR CLEANER (OUTER)
1
ELEMENT, AIR CLEANER (INNER)
1
CARTRIDGE, OIL FILTER
1
CARTRIDGE, COOLANT FILTER
1
CARTRIDGE, FUEL FILTER
1
CARTRIDGE, FUEL WATER SEPARATOR 1
CAP, AIR CLEANER
1
DUST SENSOR
1
ENGINE FOOT
1
HEX HEAD BOLT
2
HEX NUT
2
WASHER, LOCK
2
WASHER, FLAT................................................4.............. DCA300SSC
WASHER, FLAT................................................4.............. DCA300SSCU
RUBBER SUSPENSION
2
HEX NUT
4
WASHER, LOCK
4
RADIATOR / INTERCOOLER
1
HEX HEAD BOLT
4
HEX NUT
4
WASHER, LOCK
4
WASHER, FLAT
8
BRACKET, RADIATOR.....................................2.............. DCA300SSC
BRACKET, RADIATOR.....................................2.............. DCA300SSCU
HEX HEAD BOLT
6
RADIATOR PIPE
1
RADIATOR PIPE
1
HEX HEAD BOLT
2
RADIATOR HOSE, UPPER ENGINE
1
RADIATOR HOSE, UPPER/LOWER RAD. 2
RADIATOR HOSE, LOWER
1
HOSE BAND
16
RADIATOR HOSE
1
HOSE BAND
2
CLAMP
1
HEX HEAD BOLT
1
INTER-COOLER PIPE
1
INTER-COOLER PIPE
1
INTER-COOLER PIPE
4
HOSE BAND
8
ADAPTER
1
90 DEGREE ELBOW
1
CONNECTOR
1
LOCKNUT
1
VALVE
1
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 65
engine and radiator ASSY. (continued)
page 66 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
engine and radiator ASSY. (continued)
NO.
33
34
35
36
37
38
39
39
40
41
42
43
44
45
46
47
48
49
50
51
52
52
53
53
54
55
56
57
58
59
60
60
61
61
62
63
64
65
66
67
68
69
69A
70
PART NO.
0603306395
0602021070
0269200800
0602010220
0602011023
813NLU0000T
0602011500
0016910025
0602015500
0602013497
0602014110
0602013498
0602014110
0602014110
0602015300
0193601800
0605515106
0193601100
0193600550
0269501850
0605515067
0605515149
C2357300003
M5357300003
0017112025
0017116030
C2357300104
0017112025
0602122272
M9200101504
0803000104
M9200001104
0602123267
0602123261
0602015501
9095720140
0602210189
0602120481
4993343
3102763
3973114
3940632
3945603
4921744
PART NAME
QTY.
REMARKS
HOSE JOINT
1
CAP
1
DRAIN HOSE
1
RESERVER TANK
1
CAP
1
COOLANT LEVEL SWITCH
1
HEX HEAD BOLT..............................................4.............. DCA300SSC
HEX HEAD BOLT..............................................4.............. DCA300SSCU
BUSHING
1
HOSE JOINT
1
HOSE (L=250)
1
JOINT
1
HOSE (L=325)
2
HOSE (L=1100)
1
HOSE BAND
8
HOSE
1
HOSE BAND
1
HOSE
1
HOSE
1
HOSE
1
HOSE BAND.....................................................2.............. DCA300SSC
HOSE BAND.....................................................2.............. DCA300SSCU
CLAMPER ROD................................................1.............. DCA300SSC
CLAMPER ROD................................................1.............. DCA300SSCU
HEX HEAD BOLT
1
HEX HEAD BOLT
1
CLAMPER ROD
1
HEX HEAD BOLT
2
OIL PRESSURE UNIT
1
ADAPTER
1
PACKING..........................................................1.............. DCA300SSC
PACKING..........................................................1.............. DCA300SSCU
WATER TEMPERATURE UNIT.........................1.............. DCA300SSC
WATER TEMPERATURE UNIT.........................1.............. DCA300SSCU
ADAPTER
PACKING..........................................................1.............. REPLACES P/N 0602021109
WATER TEMPERATURE SWITCH
1
PICK- UP TACHOMETER
1
ALTERNATOR
1
STARTER
1
WATER PUMP
1
THERMOSTAT W/O
1
GASKET, THERMOSTAT
1
SENSOR, OIL PRESSURE
1
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 67
ENGINE operating panel ASSY.
page 68 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
ENGINE operating panel ASSY.
NO.
1
1
2
2
3
4
5
5A
5B
5C
6
7
8
9
10
11
12
13
14
14A
15
16
16
17
17A
17B
17C
PART NO.
C2351101903
M5351100003
0017106020
0017106016
0207006000
0602101000
0021008080
0030004000
0040008000
0041608000
0601830710
0601831557
0602120095
0602122093
0601842450
0602123092
0602121081
0602125091
0602103090
0601810244
M5483000003
0017110030
0016910030
0017110030
0030010000
0040010000
0041610000
PART NAME
QTY.
REMARKS
OPERATING PANEL.............................................1............DCA300SSC
OPERATING PANEL.............................................1............DCA300SSCU
HEX HEAD BOLT..................................................8............DCA300SSC
HEX HEAD BOLT..................................................8............DCA300SSCU
HEX NUT
4
BATTERY SWITCH
1
MACHINE SCREW
2
HEX NUT
2
WASHER, LOCK
2
WASHER, FLAT
2
ENGINE SPEED SWITCH
1
EMERGENCY STOP BUTTON
1
TACHOMETER
1
OIL PRESSURE GAUGE
1
VOLTAGE DIVIDER
1
WATER TEMPERATURE GAUGE
1
CHARGING AMMETER
1
FUEL GAUGE
1
ALARM LAMP
5
BULB, DC28V
5
SET FRAME
1
HEX HEAD BOLT..................................................2............DCA300SSC
HEX HEAD BOLT..................................................2............DCA300SSCU
HEX HEAD BOLT
3
HEX NUT
3
WASHER, LOCK
3
WASHER, FLAT
6
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 69
output terminal ASSY.
page 70 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
output terminal ASSY.
NO.
1
1
2
2
3
3
4
5
6
7
7
8
8A
8B
9
10
11
11
11-1
12
13
14
15
15
15A
16
16
17
17
18
19
19
20
21
21A
22
22
23
24
25
25
26
27
27
28
28
PART NO.
C2231700403
M5230700003
C0277500004
M9220100914
0801830904
9220101004
0039320000
0040020000
0041420000
3501860604
M5233200004
0019110050
0042310000
0042410000
0601808803
0601808804
C3261600704
M4260600104
0221200150
0019206020
0601814013
0601811034
0025304015
0025304016
0207004000
C2234500104
M4236400204
0019206020
0016906016
0601815194
0025304015
7538070
0601850275
0601851780
0601851780
C2237102303
M5236100003
0019112045
0042412000
0605015604
M9310200004
0205012000
0845043704
M9210000204
C2237101204
M5236100204
PART NAME
QTY.
REMARKS
SET BOARD, OUTPUT TERMINAL.............1.................DCA300SSC
SET BOARD, OUTPUT TERMINAL.............1.................DCA300SSCU
OUTPUT TERMINAL....................................8.................DCA300SSC
OUTPUT TERMINAL....................................8.................DCA300SSCU
HEX HEAD BOLT.........................................8.................DCA300SSC
HEX HEAD BOLT.........................................8.................DCA300SSCU
HEX NUT
16
WASHER, LOCK
24
WASHER, FLAT
32
TERMINAL PLATE.......................................3.................DCA300SSC
TERMINAL PLATE.......................................3.................DCA300SSCU
HEX HEAD BOLT
5
WASHER, LOCK
5
WASHER, FLAT
5
CIRCUIT BREAKER, 1P 20A
2
CIRCUIT BREAKER, 2P 50A
3
BRACKET, CIRCUIT BREAKER..................1.................DCA300SSC
BRACKET, CIRCUIT BREAKER..................1.................DCA300SSCU
RUBBER CUSHION
1
HEX HEAD BOLT
2
RECEPTACLE
2
RECEPTACLE, CS6369
3
MACHINE SCREW.....................................10................DCA300SSC
MACHINE SCREW.....................................10................DCA300SSCU
HEX NUT
10
COVER.........................................................1.................DCA300SSC
COVER.........................................................1.................DCA300SSCU
HEX HEAD BOLT.........................................8.................DCA300SSC
HEX HEAD BOLT.........................................8.................DCA300SSCU
TERMINAL BOARD
1
MACHINE SCREW......................................2.................DCA300SSC
MACHINE SCREW......................................2.................DCA300SSCU
GROMMET
1
GROMMET...................................................2.................DCA300SSC
BLIND PLUG................................................1.................DCA300SSCU
COVER, OUTPUT TERMINAL.....................1.................DCA300SSC
COVER, OUTPUT TERMINAL.....................1.................DCA300SSCU
HEX HEAD BOLT
2
WASHER, FLAT
4
STAY RUBBER.............................................2.................DCA300SSC
STAY RUBBER.............................................2.................DCA300SSCU
HEX NUT
2
SPRING........................................................2.................DCA300SSC
SPRING........................................................2.................DCA300SSCU
COVER.........................................................1.................DCA300SSC
COVER.........................................................1.................DCA300SSCU
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 71
output terminal ASSY.
page 72 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
output terminal ASSY.
NO.
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
37
PART NO.
0017108020
0016908020
C2237102403
M5236100104
0019210030
014210040
0845054204
M9116000004
0805015604
M9310200004
C2237101504
M4236100604
C2237500104
M4236400304
0017106020
0016906016
7538070
PART NAME
QTY.
REMARKS
HEX HEAD BOLT.........................................7.................DCA300SSC
HEX HEAD BOLT.........................................7.................DCA300SSCU
COVER, OUTPUT TERMINAL.....................1.................DCA300SSC
COVER, OUTPUT TERMINAL.....................1.................DCA300SSCU
HEX HEAD BOLT.........................................2.................DCA300SSC
HEX HEAD BOLT.........................................2.................DCA300SSCU
COLLAR.......................................................2.................DCA300SSC
COLLAR.......................................................2.................DCA300SSCU
STAY RUBBER.............................................1.................DCA300SSC
STAY RUBBER.............................................1.................DCA300SSCU
COVER.........................................................1.................DCA300SSC
COVER.........................................................1.................DCA300SSCU
BRACKET....................................................1.................DCA300SSC
BRACKET....................................................1.................DCA300SSCU
HEX HEAD BOLT.........................................2.................DCA300SSC
HEX HEAD BOLT.........................................2.................DCA300SSCU
MACHINE SCREW......................................4.................DCA300SSCU
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 73
battery ASSY. (DCA300ssc)
page 74 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
battery ASSY. (DCA300ssc)
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
PART NO.
0165511551
C9109100604
3972250004
0805002904
0037808000
0040008000
0041608000
C2346600404
C2346600304
C2347600704
C2346600504
C2346200004
0347010030
0208110000
0845040414
0845041304
0017116030
0040516000
0017112025
0040512000
PART NAME
BATTERY
BATTERY SHEET
BATTERY BAND
BATTERY BOLT
WING NUT
WASHER, LOCK
WASHER, FLAT
BATTERY CABLE
BATTERY CABLE
BATTERY CABLE
BATTERY CABLE
EARTH CABLE
HEX HEAD BOLT
HEX NUT
TERMINAL CAP (+)
TERMINAL CAP (-)
HEX HEAD BOLT
TOOTHED WASHER
HEX HEAD BOLT
TOOTHED WASHER
QTY.
2
2
1
2
2
2
2
1
1
1
1
2
4
4
2
2
1
1
1
1
REMARKS
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 75
battery ASSY. (DCA300sscu)
page 76 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
battery ASSY. (DCA300sscu)
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
PART NO.
0602220196
M9310500404
M9104000004
0602220921
M5346900404
M5347900104
M4346400314
M5346900504
M5346200104
0017116030
0040516000
0017112025
0040512000
PART NAME
BATTERY
BATTERY SHEET
BATTERY BAND
BATTERY BOLT SET
BATTERY CABLE
BATTERY CABLE
BATTERY CABLE
BATTERY CABLE
EARTH CABLE
HEX HEAD BOLT
TOOTHED WASHER
HEX HEAD BOLT
TOOTHED WASHER
QTY.
2
2
1
2
1
1
1
1
2
1
1
1
1
REMARKS
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 77
muffler ASSY.
page 78 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
muffler ASSY.
NO.
1
1
2
3
4
5
5
6
6A
6B
6C
7
7
8
PART NO.
C2331100002
M5330100102
0019210025
M5333000003
0602325066
C1334200304
M4333200004
0010312055
0030312000
0042512000
0041612000
C2331300004
M5331300004
0017108020
PART NAME
QTY.
REMARKS
MUFFLER....................................................1.................DCA300SSC
MUFFLER....................................................1.................DCA300SSCU
HEX HEAD BOLT
4
EXHAUST PIPE
1
BEND BOLT CLAMP
1
GASKET.......................................................1.................DCA300SSC
GASKET.......................................................1.................DCA300SSCU
HEX HEAD BOLT
4
HEX NUT......................................................4.................DCA300SSC
WASHER, LOCK..........................................4.................DCA300SSC
WASHER, FLAT...........................................8.................DCA300SSC
COVER.........................................................2.................DCA300SSC
COVER.........................................................2.................DCA300SSCU
HEX HEAD BOLT
4
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 79
fuel tank Assy. (DCA300ssc)
page 80 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
fuel tank Assy. (DCA300ssc)
NO.
1
1-1
1-2
1-3
1-4
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
PART NO.
C2363000303
0810105004
0810105400
0264100525
0605515079
0605503023
0802120604
0605501093
0605516090
0022905015
8195523104
0805003414
0017108020
0207308000
0222100300
0130206000
0134306170
0603325026
0132006000
C1367700304
0019208020
0845039604
0191503400
0191503700
0605515073
PART NAME
FUEL TANK
CAP, FUEL TANK
FUEL FILTER
HOSE, FUEL GAUGE
HOSE BAND
FUEL SENSOR
PACKING
UNIT, FUEL
PACKING
MACHINE SCREW
TANK BAND
PAD, TANK BAND
HEX HEAD BOLT
SUPER LOCK NUT
TANK SHEET
STREET ELBOW, 1/2"
DRAIN PIPE
VALVE
PLUG, 1/2"
LOCK PLATE
HEX HEAD BOLT
RUBBER SEAL
SUCTION HOSE
RETURN HOSE
HOSE BAND
QTY.
1
1
1
1
2
1
1
1
1
5
2
4
4
2
6
1
1
1
1
1
2
1
1
1
4
REMARKS
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 81
fuel tank Assy. (DCA300sscU)
page 82 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
fuel tank Assy. (DCA300sscU)
NO.
1
1-1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
PART NO.
M5363000202
0605505070
0605501069
0605516090
0027104016
M5364200004
M9310500104
0016908020
0207308000
0222100300
M9200000003
M9200200004
0150000018
0016908020
M1363400104
0605515198
0602042682
0602042683
0191503400
0191503700
0605515198
PART NAME
FUEL TANK
CAP, FUEL TANK
FUEL SENSOR UNIT
GASKET
MACHINE SCREW
TANK BAND
SUPPORTER SHEET
HEX HEAD BOLT
SUPER LOCK NUT
RUBBER TANK SHEET
DRAIN JOINT
DRAIN BOLT
O-RING
HEX HEAD BOLT
DRAIN HOSE
HOSE BAND
CONNECTION
CONNECTION
HOSE, SUCTION
HOSE, RETURN
HOSE BAND
QTY.
1
1
1
1
5
2
4
2
2
6
1
1
1
2
1
2
1
1
1
1
4
REMARKS
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 83
enclosure ASSY.
page 84 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
enclosure ASSY.
NO.
1
1
2
2A
3
3
4
4A
5
5
5A
5A
6
6
7
7A
8
8A
9
10
11
11A
12
12
12A
12A
13
14
15
16
PART NO.
C2413003202
M5413000004
C3414100104
M1413400004
C2414100004
M5413100204
0019208020
0019208020
C2414600304
M5413600104
C2494000304
M5493000004
0017108020
0016908020
M5423000002
M5493100003
M5423000102
M5493100003
0017108020
0019210025
C2424200003
M5424200203
C2424201504
M5424200103
C2494101104
M5494101604
0019208020
0845042703
0019208020
M5433000002
PART NAME
QTY.
REMARKS
BASE............................................................1.................DCA300SSC
BASE............................................................1.................DCA300SSCU
FLOOR PANEL.............................................1.................DCA300SSC
FLOOR PANEL.............................................1.................DCA300SSCU
FLOOR PANEL.............................................1.................DCA300SSC
FLOOR PANEL.............................................1.................DCA300SSCU
HEX HEAD BOLT........................................14................DCA300SSC
HEX HEAD BOLT........................................12................DCA300SSCU
DUCT...........................................................1.................DCA300SSC
DUCT...........................................................1.................DCA300SSCU
ACOUSTIC SHEET......................................1.................DCA300SSC
ACOUSTIC SHEET......................................1.................DCA300SSCU
HEX HEAD BOLT.........................................4.................DCA300SSC
HEX HEAD BOLT.........................................4.................DCA300SSCU
FRONT FRAME
1
ACOUSTIC SHEET
1
FRONT FRAME
1
ACOUSTIC SHEET
1
HEX HEAD BOLT
10
HEX HEAD BOLT
8
COVER, FRONT FRAME.............................1.................DCA300SSC
COVER, FRONT FRAME.............................1.................DCA300SSCU
COVER, FRONT FRAME.............................1.................DCA300SSC
COVER, FRONT FRAME.............................1.................DCA300SSCU
ACOUSTIC SHEET......................................1.................DCA300SSC
ACOUSTIC SHEET......................................1.................DCA300SSCU
HEX HEAD BOLT
23
FILLER BRACKET.......................................1.................DCA300SSC
HEX HEAD BOLT.........................................4.................DCA300SSC
CENTER FRAME
1
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 85
enclosure ASSY. (continued)
page 86 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
enclosure ASSY. (continued)
NO.
17
17A
17B
17C
18
18A
18B
18C
19
19
20
21
21A
21A
22
23
23A
24
24A
25
26
27
28
29
29
30
30A
31
31
32
32A
PART NO.
0010114050
0030014000
0040014000
0041214000
0010114040
0030014000
0040014000
0041214000
C2367700404
M5366700204
0019208020
M5443000002
C2494300204
M5493300904
0019210025
M5443300003
M5493300004
M5443300104
M5493300104
0016908020
0019208020
M5453000003
M5453000103
8225147004
M5443600004
0207306000
0041206000
B9114000102
M9113000202
0021806016
0030006000
PART NAME
QTY.
REMARKS
HEX HEAD BOLT
4
HEX NUT
4
WASHER, LOCK
4
WASHER, FLAT
8
HEX HEAD BOLT
8
HEX NUT
8
WASHER, LOCK
8
WASHER, FLAT
16
COVER.........................................................1.................DCA300SSC
COVER.........................................................1.................DCA300SSCU
HEX HEAD BOLT
2
REAR FRAME
1
ACOUSTIC SHEET......................................1.................DCA300SSC
ACOUSTIC SHEET......................................1.................DCA300SSCU
HEX HEAD BOLT
4
COVER, REAR FRAME
1
ACOUSTIC SHEET
1
PANEL
1
ACOUSTIC SHEET
1
HEX HEAD BOLT
12
HEX HEAD BOLT
14
DOOR, REAR FRAME
1
DOOR, REAR FRAME
1
WINDOW PLATE..........................................2.................DCA300SSC
WINDOW PLATE..........................................2.................DCA300SSCU
SELF- LOCKING U-NUT
12
WASHER, FLAT
12
DOOR HANDLE...........................................1.................DCA300SSC
DOOR HANDLE...........................................1.................DCA300SSCU
MACHINE SCREW
4
HEX NUT
4
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 87
enclosure ASSY. (continued)
page 88 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
enclosure ASSY. (continued)
NO.
33
PART NO.
33
34
34
35
35
36
37
37
38
38
39
40
40A
40A
41
41A
41A
42
43
44
45
45
46
47
48
48A
49
50
51
51
51A
51A
52
53
54
55
C3444700004
M9114300004
8195146304
M9114300104
0845050704
M9113300004
0207006000
0805011304
M9113400104
0805011204
M113400204
0207006000
M9110100204
0845045004
M9116100004
M9110100304
0845045004
M9116100004
0019208020
0601850097
0025408025
0845031504
M9310000004
0600800320
0207006000
M5463100002
M5493500004
M3310600004
0019208020
C2464200502
M5463200102
C2494500904
M5493502004
M5423200103
0019208020
M5453200002
0019208065
PART NAME
QTY.
REMARKS
DOOR ROD......................................................1.................. DCA300SSC
DOOR ROD..................................................1.................DCA300SSCU
DOOR ROD..................................................1.................DCA300SSC
DOOR ROD..................................................1.................DCA300SSCU
STAY
4
DCA300SSC
STAY
4
DCA300SSCU
HEX NUT
8
STOPPER, DOOR.......................................1.................DCA300SSC
STOPPER, DOOR.......................................1.................DCA300SSCU
STOPPER, DOOR.......................................1.................DCA300SSC
STOPPER, DOOR.......................................1.................DCA300SSCU
HEX NUT
4
HINGE
2
WASHER......................................................2.................DCA300SSC
WASHER......................................................2.................DCA300SSCU
HINGE
2
WASHER......................................................2.................DCA300SSC
WASHER......................................................2.................DCA300SSCU
HEX HEAD BOLT
6
STOPPER
2
MACHINE SCREW
2
CAP
4
CAP
4
MANUAL PAK
1
HEX NUT
4
ROOF PANEL
1
ACOUSTIC SHEET
1
COVER
1
HEX HEAD BOLT
4
ROOF PANEL...............................................1.................DCA300SSC
ROOF PANEL...............................................1.................DCA300SSCU
ACOUSTIC SHEET......................................1.................DCA300SSC
ACOUSTIC SHEET......................................1.................DCA300SSCU
COVER, FRONT FRAME
1
HEX HEAD BOLT
41
SPLASHER PANEL
1
HEX HEAD BOLT
6
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 89
enclosure ASSY. (continued)
page 90 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
enclosure ASSY. (continued)
NO.
56
56A
57
57A
58
58A
59
59A
60
60A
61
61A
62
62A
63
63A
64
65
65
66
66
67
67A
68
68
68A
68A
69
69
69A
69A
70
71
72
73
73
74
75
75
76
77
78
PART NO.
M5453000203
M5493400004
M5453000303
M5493400104
M5453000803
M5493409304
M5453000903
M5493409404
M5453300004
M5493400204
M5453300104
M5493400304
M5453300904
M5493409504
M5453300204
M5493400404
0207008000
B9114000002
M9113000002
0825007362
M9113000102
0021806016
0030006000
0845046904
M9110100804
0845045004
M9116100004
084504700
M9110100904
0845045004
M9116100004
0019208020
0601850097
0025408025
0845031504
M9310000004
M5463500004
C2464500304
M5463500104
0019208020
0019116025
0042416000
PART NAME
QTY.
REMARKS
SIDE PANEL
1
ACOUSTIC SHEET
1
SIDE PANEL
1
ACOUSTIC SHEET
1
SIDE PANEL
1
ACOUSTIC SHEET
1
SIDE PANEL
1
ACOUSTIC SHEET
1
DUCT
1
ACOUSTIC SHEET
1
DUCT
1
ACOUSTIC SHEET
1
DUCT
2
ACOUSTIC SHEET
2
DUCT
1
ACOUSTIC SHEET
1
HEX NUT
35
DOOR HANDLE.................................................4.................. DCA300SSC
DOOR HANDLE.................................................4.................. DCA300SSCU
DOOR HANDLE..............................................3.................. DCA300SSC
DOOR HANDLE..............................................3.................. DCA300SSCU
MACHINE SCREW
28
HEX NUT
16
HINGE..........................................................5.................DCA300SSC
HINGE..........................................................5.................DCA300SSCU
WASHER......................................................5.................DCA300SSC
WASHER......................................................5.................DCA300SSCU
HINGE..........................................................6.................DCA300SSC
HINGE..........................................................6.................DCA300SSCU
WASHER......................................................6.................DCA300SSC
WASHER......................................................6.................DCA300SSCU
HEX HEAD BOLT
25
STOPPER
8
MACHINE SCREW
8
CAP.............................................................11................DCA300SSC
CAP.............................................................11................DCA300SSCU
GUTTER.......................................................2
GUTTER.......................................................2.................DCA300SSC
GUTTER.......................................................2.................DCA300SSCU
HEX HEAD BOLT
4
HEX HEAD BOLT.........................................1.................DCA300SSCU
WASHER, FLAT...........................................1.................DCA300SSCU
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 91
RUBBER SEALS ASSY.
page 92 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
RUBBER SEALS ASSY.
NO.
1
2
3
4
5
5
6
7
8
9
10
11
12
13
14
PART NO.
0229201400
0228901015
0228901250
0228901310
0228900650
0228900650
0228900650
0228900710
0229201300
0221200705
0228801210
0228100510
0228100120
0229200470
0229201130
PART NAME
QTY.
REMARKS
SEAL RUBBER
4
SEAL RUBBER
4
SEAL RUBBER
3
SEAL RUBBER
3
SEAL RUBBER...............................................4.................. DCA300SSC
SEAL RUBBER...............................................4.................. DCA300SSCU
SEAL RUBBER
1
SEAL RUBBER
1
SEAL RUBBER
1
SEAL RUBBER
2
SEAL RUBBER
2
SEAL RUBBER
4
SEAL RUBBER
4
SEAL RUBBER
2
SEAL RUBBER
1
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 93
NAMEPLATE AND DECALS ASSY. (DCA300ssc)
page 94 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
NAMEPLATE AND DECALS ASSY. (DCA300ssc)
NO.
1-1
1-2 PART NO.
C3550000703
C9522100003
PART NAME
QTY.
REMARKS
DECAL : HANDLING PROCEDURES..........................1.................. C35000070
DECAL : CAUTION.......................................................2.................. C92210000
2-1
0800520100
2-2
0800520904
2-3
0800520814
2-4
0840624504
2-5
0840624604
2-6
0840624704
2-7
0840624804
2-8
B9531100604
2-9
C0551000903
2-10 C2551000004
2-11 M5560100903
2-12 C9502400004
2-13 C9520027704
2-14 C9520028604
2-15 C9520028704
2-16 C9520028804
2-17 C9521007504
2-18 Z0110001504
CONTROL BOX GROUP
PLATE : ON - OFF........................................................1.................. AT-202
PLATE : AMMETER CHANGE- OVER SWITCH..........1.................. N-2438
PLATE : VOLTMETER CHANGE- OVER SWITCH.......1.................. N-2439
DECAL : CIRCUIT BREAKER......................................1.................. S-3031
DECAL : PANEL LIGHT SWITCH.................................1.................. S-3032
DECAL : PILOT LAMP..................................................1.................. S-3033
DECAL : VOLTAGE REGULATOR.................................1.................. S-3034
DECAL : WARNING ELECTRIC SHOCK HAZARD......1.................. B93110060
DECAL : SETTING FOR OUTPUT VOLTAGE...............1.................. C05100090
DECAL : SAFETY INSTRUCTIONS.............................1.................. C25100000
DECAL : WHISPERWATT 300......................................1.................. M56010090A
DECAL : HIGH IDLE SPEED........................................1.................. C90240000
DECAL : DIAGNOSTIC BUTTON.................................1.................. C92002770
DECAL : WARNING DIAGNOSTIC LAMP....................1.................. C92002860
DECAL : SHUTDOWN DIAGNOSTIC LAMP................1.................. C92002870
DECAL : LOW IDLE SPEED / DIAG. CODE SW...........1.................. C92002880
DECAL : DIAGNOSTIC SWITCH..................................1.................. C92100750
DECAL : RESET...........................................................1.................. Z01000150
3-1
6360610304
3-2
6360620204
3-3
B9504000404
3-4
B9504100104
ENGINE & RADIATOR GROUP
DECAL : WATER...........................................................1.................. S-1880
DECAL : OIL DRAIN PLUG..........................................1.................. S-1885
DECAL : MOVING PARTS............................................2.................. B90400040
DECAL : WARNING HOT COOLANT...........................1.................. B90410010
4-1
C0551000504
4-2
C3550000404
4-3
M5550000503
ENGINE OPERATING PANEL GROUP
DECAL : BATTERY SWITCH........................................1.................. C05100050
DECAL : ALARM LAMP................................................1.................. C35000040
DECAL : OPERATING PANEL......................................1.................. M55000050
5-1
0840614104
5-2
0840619904
5-3
9039209064
5-4
B9511100304
5-5
B9511100404
5-6
B9531100504
5-7
C0551000404
5-8
C1551000803
OUTPUT TERMINAL GROUP
DECAL : GROUND.......................................................1.................. S-2635
DECAL : DANGER HIGH VOLTAGE.............................1.................. S-2731
DECAL : START CONTACT..........................................1.................. S-4468
DECAL : WARNING......................................................1.................. B91110030
DECAL : WARNING ELECTRIC SHOCK HAZARD......1.................. B91110040
DECAL : WARNING ELECTRIC SHOCK HAZARD......1.................. B93110050
DECAL : 3- PHASE OUTPUT TERMINAL....................1.................. C05100040
DECAL : RECEPTACLE & CIRCUIT BREAKER...........1.................. C15100080
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 95
NAMEPLATE AND DECALS ASSY. (Continued DCA300ssc)
page 96 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
NAMEPLATE AND DECALS ASSY. (Continued DCA300ssc)
NO. PART NO.
6-1
0800689404
6-2
0800689504
6-3
C9505300004
PART NAME
QTY.
REMARKS
BATTERY GROUP
DECAL : +................................................................ 1....................... S-2090
DECAL : -................................................................. 1....................... S-2091
DECAL : CAUTION.................................................. 1....................... C90530000
7-1
A9504000014
7-2
B9504200004
MUFFLER GROUP
DECAL : DANGER............................................................................ A90400001
DECAL : WARNING ENGINE EXHAUST................. 1....................... B90420000
8-1
1320620904
8-2
6360620004
8-3
B9504500004
FUEL TANK GROUP
DECAL : DIESEL FUEL........................................... 1....................... S-1756
DECAL : FUEL DRAIN PLUG.................................. 1....................... S-1883
DECAL : WARNING DIESEL FUEL......................... 1....................... B90450000
9-1
1320610603
9-2
1320621504
9-3
0840625902
9-4
B9504000304
9-5
B9531100604
9-6
0600500090
9-6A 0021106016
9-7
M5560101503
9-8
M5560101303
9-9
M5560101103
9-10 M5560101004
9-11 M5560101403
9-12 M5560101203
9-13 C9504000304
9-14 M9504200004
ENCLOSURE GROUP
DECAL : WATER - OIL............................................ 1....................... S-1760
DECAL : SUPPORT HOOK..................................... 2....................... S-2257
DECAL : MQ............................................................ 1....................... S-3057
DECAL : CAUTION HOT PARTS............................. 1....................... B90400030
DECAL : WARNING ELECTRIC SHOCK HAZARD.1....................... B93110060
EMBLEM
2
MACHINE SCREW
4
STRIPE
1
STRIPE
1
STRIPE
1
STRIPE
4
STRIPE
1
STRIPE
1
DECAL : CAUTION.................................................. 1....................... C90400030
DECAL : WARNING START FIRES......................... 1....................... M90420000
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 97
NAMEPLATE AND DECALS ASSY. (DCA300sscu)
page 98 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
NAMEPLATE AND DECALS ASSY. (DCA300sscu)
NO.
1-1
1-2 PART NO.
M5550000303
M9520100603
PART NAME
QTY.
REMARKS
DECAL : HANDLING PROCEDURES..........................1.................. M55000030
DECAL : CAUTION.......................................................2.................. M92010060
2-1
M5560100903
2-2
M9520000104
2-3
M9520000204
2-4
M9520000904
2-5
M9520001104
2-6
M9520001504
2-7
M9520001804
2-8
M9520001904
2-9
M9520001904
2-10 M9522000404
2-11 M9520001304
2-12 M9520001404
2-13 M9520100004
2-14 M9520100304
2-15 M9520200303
2-16 M9522000504
2-17 M9522000704
CONTROL BOX GROUP
DECAL : WHISPERWATT 300......................................1.................. M56010090A
PLATE : AMMETER CHANGE-OVER SWITCH...........1.................. M92000010
PLATE : VOLTMETER CHANGE-OVER SWITCH........1.................. M92000020
DECAL : DIAGNOSTIC SWITCH..................................1.................. M92000090
DECAL : DIAGNOSTIC BUTTON.................................1.................. M92000110
DECAL : RESET...........................................................1.................. M92000150
DECAL : WARNING DIAGNOSTIC LAMP....................1.................. M92000180
DECAL : SHUTDOWN DIAGNOSTIC LAMP................1.................. M92000190
DECAL : LOW IDLE SPEED/DIAG. CODE SWITCH....1.................. M92000200
DECAL : HIGH IDLE SPEED........................................1.................. M92200040
DECAL : VOLTAGE REGULATOR.................................1.................. M92000130
DECAL : PILOT LAMP..................................................1.................. M92000140
DECAL : WARNING ELECTRIC SHOCK HAZ..............1.................. M92010000
DECAL : GENERAL CAUTION.....................................1.................. M92010030
DECAL : SETTING FOR OUTPUT VOLTAGE...............1.................. M92020030
DECAL : CIRCUIT BREAKER.......................................1.................. M92200050
DECAL : PANEL LIGHT SWITCH.................................1.................. M92200070
3-2
M9500000004
3-1
M9500100004
3-3
M9503000004
3-4
M9510100004
3-5
M9503100004
3-6
M9510100004
ENGINE & RADIATOR GROUP
DECAL : OIL DRAIN PLUG..........................................1.................. M90000000
DECAL : WATER...........................................................1.................. M90010000
DECAL : MOVING PARTS............................................2.................. M90300000
DECAL : WATER OIL....................................................1.................. M91010000
DECAL : WARNING RADIATOR CAP...........................1.................. M90310000
DECAL : HIGH TEMP...................................................1.................. M91010000
4-1
M5550000103
4-3
M5550000503
4-1
M9520001604
ENGINE OPERATING PANEL GROUP
DECAL : ALARM LAMP................................................1.................. M55000010
DECAL : OPERATING PANEL......................................1.................. M55000050
DECAL : BATTERY SWITCH........................................1.................. M92000160
5-1
M4550000103
5-2
M9520000004
5-3
M9520000504
5-4
M9520000704
5-5
M9520100404
5-6
M9520100503
OUTPUT TERMINAL GROUP
DECAL : AUXILIARY OUTPUTS...................................1.................. M45000010
DECAL : GROUNDING.................................................1.................. M92000000
DECAL : START CONTACT..........................................1.................. M92000050
DECAL : 3-PHASE OUTPUT TERMINAL.....................1.................. M92000070
DECAL : DANGER HIGH VOLTAGE.............................1.................. M92010040
DECAL : WARNING ELECTRIC SHOCK HAZARD......1.................. M92010050
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 99
NAMEPLATE AND DECALS ASSY. (Continued DCA300sscU)
page 100 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
NAMEPLATE AND DECALS ASSY. (Continued DCA300sscU)
NO. PART NO.
6-1
M9500300004
6-2
M9500300104
6-3
M9510100403
PART NAME
QTY.
REMARKS
BATTERY GROUP
DECAL : -................................................................. 1....................... M90030000
DECAL : +................................................................ 1....................... M90030010
DECAL : WARNING BATTERY CONNECT............. 1....................... M91010040A
7-1
M9503200004
7-2
M9503200104
MUFFLER GROUP
DECAL : WARNING ENGINE EXHAUST.......................................... M90320000
DECAL : DANGER EXHAUST GAS INDOOR......... 1....................... M90320010
8-1
M9500500004
8-2
M9500500104
FUEL TANK GROUP
DECAL : DIESEL FUEL........................................... 1....................... M95005000
DECAL : FUEL DRAIN PLUG.................................. 1....................... M950050010
9-1
M9510200002
9-2
0600500090
9-2A 0021106016
9-3
M5560101004
9-4
M5560101103
9-5
M5560101203
9-6
M5560101303
9-7
M5560101403
9-8
M5561100403
9-9
M5550000004
9-10 M9504200004
9-11 M9510000104
9-12 M9512000004
ENCLOSURE GROUP
DECAL : MQ............................................................ 1....................... M91020000
EMBLEM
2
MACHINE SCREW
4
STRIPE
1
STRIPE
1
STRIPE
1
STRIPE
4
STRIPE
1
STRIPE
1
DECAL : CAUTION LIFTING CAP........................... 1....................... M55000000
DECAL : WARNING START FIRES......................... 1....................... M90420000
DECAL : DOCUMENT BOX LOCATED.................... 1....................... M91000010
DECAL : SUPPORT HOOK..................................... 2....................... M91200000
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 101
Terms and Conditions of Sale — Parts
PAYMENT TERMS
5.
Parts must be in new and resalable
condition, in the original Multiquip
package (if any), and with Multiquip part
numbers clearly marked.
6.
The following items are not returnable:
Multiquip reserves the right to quote and
sell direct to Government agencies, and to
Original Equipment Manufacturer accounts
who use our products as integral parts of their
own products.
a.
SPECIAL EXPEDITING SERVICE
Terms of payment for parts are net 30 days.
FREIGHT POLICY
All parts orders will be shipped collect or
prepaid with the charges added to the invoice.
All shipments are F.O.B. point of origin.
Multiquip’s responsibility ceases when a
signed manifest has been obtained from the
carrier, and any claim for shortage or damage
must be settled between the consignee and
the carrier.
b.
MINIMUM ORDER
The minimum charge for orders from Multiquip
is $15.00 net. Customers will be asked for
instructions regarding handling of orders not
meeting this requirement.
RETURNED GOODS POLICY
Return shipments will be accepted and
credit will be allowed, subject to the following
provisions:
1.
A Returned Material Authorization
must be approved by Multiquip prior to
shipment.
2.
Obsolete parts. (If an item is in the
price book and shows as being
replaced by another item, it is
obsolete.)
Any parts with a limited shelf life
(such as gaskets, seals, “O” rings,
and other rubber parts) that were
purchased more than six months
prior to the return date.
c.
Any line item with an extended
dealer net price of less than
$5.00.
d.
Special order items.
e.
Electrical components.
f.
Paint, chemicals, and lubricants.
g.
Decals and paper products.
h.
Items purchased in kits.
7.
The sender will be notified of any material
received that is not acceptable.
To obtain a Return Material Authorization,
a list must be provided to Multiquip
Parts Sales that defines item numbers,
quantities, and descriptions of the items
to be returned.
8.
Such material will be held for five
working days from notification, pending
instructions. If a reply is not received
within five days, the material will be
returned to the sender at his expense.
a.
The parts numbers and descriptions
must match the current parts price
list.
9.
b.
The list must be typed or computer
generated.
Credit on returned parts will be issued
at dealer net price at time of the original
purchase, less a 15% restocking
charge.
c.
The list must state the reason(s)
for the return.
d.
The list must reference the sales
order(s) or invoice (s) under
which the items were originally
purchased.
e.
The list must include the name
and phone number of the person
requesting the RMA.
3.
A copy of the Return Material Authorization
must accompany the return shipment.
4.
Freight is at the sender’s expense. All
parts must be returned freight prepaid to
Multiquip’s designated receiving point.
10. In cases where an item is accepted, for
which the original purchase document
can not be determined, the price will be
based on the list price that was effective
twelve months prior to the RMA date.
A $35.00 surcharge will be added to the
invoice for special handling including bus
shipments, insured parcel post or in cases
where Multiquip must personally deliver the
parts to the carrier.
LIMITATIONS OF SELLER’S LIABILITY
Multiquip shall not be liable hereunder for
damages in excess of the purchase price of
the item with respect to which damages are
claimed, and in no event shall Multiquip be
liable for loss of profit or good will or for any
other special, consequential or incidental
damages.
LIMITATION OF WARRANTIES
No warranties, express or implied, are
made in connection with the sale of parts or
trade accessories nor as to any engine not
manufactured by Multiquip. Such warranties
made in connection with the sale of new,
complete units are made exclusively by a
statement of warranty packaged with such
units, and Multiquip neither assumes nor
authorizes any person to assume for it
any other obligation or liability whatever in
connection with the sale of its products. Apart
from such written statement of warranty,
there are no warranties, express, implied or
statutory, which extend beyond the description
of the products on the face hereof.
Effective: February 22, 2006
11. Credit issued will be applied to future
purchases only.
PRICING AND REBATES
Prices are subject to change without prior
notice. Price changes are effective on a
specific date and all orders received on or
after that date will be billed at the revised price.
Rebates for price declines and added charges
for price increases will not be made for stock
on hand at the time of any price change.
page 102 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)
notes
DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11) — page 103
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
Service Department
800-421-1244
310-537-3700
800-427-1244
310-537-3700
Fax: 800-672-7877
Fax: 310-637-3284
Warranty Department
Fax: 310-537-4259
800-421-1244
310-537-3700
Fax: 310-943-2249
Technical Assistance
800-478-1244
Fax: 310-943-2238
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,
Globe 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 2011, MULTIQUIP INC.
Multiquip Inc and 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 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.
Your Local Dealer is:
Manufactured for
Multiquip Inc.
by
DENYO CO., LTD, JAPAN
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