Multiquip SG1400C3-55748 User Manual
OPERATION AND PARTS MANUAL
MODEL SG1400C3-55748
3-POSITION SWITCH/PARALLELING
1400 AMP STUDIO GENERATOR
(CUMMINS QSB7-G5 DIESEL ENGINE)
Revision #1 (02/15/12)
To find the latest revision of this
publication, visit our website at:
www.mqpower.com
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
EE55916
PROPOSITION 65 WARNING
Diesel engine exhaust and some of
PAGE 2 — SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12)
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.
SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12) — PAGE 3
TABLE OF CONTENTS
SG1400C3 Studio Generator
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 .......................................... 16-18
Generator Major Components .......................... 20-21
Basic Engine Components .................................... 22
Basic Trailer Components ...................................... 23
Control Panel ......................................................... 24
Camlok/Voltage Output Panel ................................ 25
Circuit Breaker Panel ............................................. 26
Digital Controller ................................................... 27
Load Application/Generator Output ....................... 28
Generator Outputs ................................................. 29
Inspection/Setup ............................................... 30-33
Startup .............................................................. 34-36
Protective Devices ................................................. 37
Maintenance ..................................................... 38-43
Troubleshooting (Generator) .................................. 44
Troubleshooting (Engine) ....................................... 45
Troubleshooting (Controller) .................................. 46
Trailer Guidelines .............................................. 47-61
Hydraulic Hoses Schematic ................................... 62
Maintenance Parts Locator .................................... 63
Generator Wiring Diagram ................................ 64-65
Explanation Of Codes In Remarks Column ........... 66
Suggested Spare Parts ......................................... 67
Component Drawings
Housing (Base) Assy.........................................68-69
Housing (Interior) Assy. ....................................70-71
Camlok Assy. .................................................... 72-73
Control Box Assy. (Panel) ................................. 74-75
Control Box Assy. (Interior) ............................... 76-77
Engine/Generator Mounting Assy. .................... 78-79
Radiator/Muffler Support ..................................80-81
Radiator/Fan Assy. ............................................ 82-83
Radiator Piping ................................................. 84-85
Air Filter Hosing/Piping ..................................... 86-87
Exhaust Assy. ................................................... 88-89
Saddle Box Assy. .............................................. 90-91
Engine Starter, Relay And Battery Assy. .......... 92-93
Fuel System Assy. ............................................ 94-97
Hyd. Vent Actuator Hosing Assy. ....................... 98-99
Engine Component Assy...............................100-101
Hyd. Manifold, Valve And Hose Assy. ........... 102-103
Hyd. Tank, Filter And Hose Assy. .................. 104-107
Hyd. Pump, Cooler, Fan Motor And Hose Assy. 108-109
Crankcase Ventilation Assy. .......................... 110-111
Trailer Assy. ................................................... 112-113
Terms And Conditions Of Sale — Parts .............. 114
NOTICE
Specifications are subject to change without notice.
PAGE 4 — SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12)
Ordering parts has never been easier!
If you have an MQ Account, to obtain a Username
Effective:
PARTS ORDERING PROCEDURES
Choose from three easy options:
January 1st, 2006
Best Deal!
Order via Internet (Dealers Only):
Order parts on-line using Multiquip’s SmartEquip website!
■ View Parts Diagrams
■ Order Parts
■ Print Specification Information
Goto www.multiquip.com and click on
Order Parts
to log in and save!
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)
Order via Phone:
Non-Dealer Customers:
Contact your local Multiquip Dealer for
parts or call 800-427-1244 for help in
locating a dealer near you.
and Password, E-mail us at: parts@multiquip.
com.
To ob tai n an MQ Acc o un t , cont a ct yo u r
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.*
Fax your order in and qualify for a 2% Discount
on Standard orders for all orders which include
complete part numbers.*
Domestic (US) Dealers Call:
1-800-427-1244
International Customers should contact
their local Multiquip Representatives for
Parts Ordering information.
Note: Discounts Are Subject To Change
Note: Discounts Are Subject To Change
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
NOTICE
All orders are treated as Standard Orders and will
ship the same day if received prior to 3PM PST.
❒ Specify Preferred Method of Shipment:
✓ UPS/Fed Ex ✓ DHL
■ Priority One ✓ Truck
■ Ground
■ Next Day
■ Second/Third Day
www.multiquip.com
WE ACCEPT ALL MAJOR CREDIT CARDS!
SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12) — PAGE 5
SAFETY INFORMATION
Do not operate or service the equipment before reading the
Potential hazards associated with the operation of this
entire manual. Safety precautions should be followed at all
times when operating this equipment. Failure to read and
understand the safety messages and operating instructions
could result in injury to yourself and others.
SAFETY MESSAGES
The four safety messages shown below will inform you
about potential hazards that could injure you or others. The
safety messages specifi cally address the level of exposure
to the operator and are preceded by one of four words:
DANGER, WARNING, CAUTION or NOTICE.
SAFETY SYMBOLS
DANGER
Indicates a hazardous situation which, if not avoided,
WILL result in DEATH or SERIOUS INJURY.
WARNING
equipment will be referenced with hazard symbols which
may appear throughout this manual in conjunction with
safety messages.
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 — SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12)
SAFETY INFORMATION
GENERAL SAFETY
NEVER use accessories or attachments that are not
recommended by MQ Power for this equipment. Damage
Also, know the
and
This information will be invaluable in
emergency or safety devices.
Disconnection of these devices can cause severe injury,
bodily harm or even death. Disconnection of any of these
ensure generator is on level ground before use.
keep the machine in proper running condition.
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
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 infl uence of
drugs or alcohol.
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.
to the equipment and/or injury to user may result.
ALWAYS know the location of the nearest
fi re extinguisher.
ALWAYS know the location of the nearest
fi rst aid kit.
ALWAYS know the location of the nearest
phone or keep a phone on the job site.
phone numbers of the nearest ambulance, doctor
fi re department.
the case of an emergency.
GENERATOR SAFETY
DANGER
NEVER operate the equipment in an explosive
atmosphere or near combustible materials. An
explosion or fi re could result causing severe
bodily harm or even death.
WARNING
NOTICE
This equipment should only be operated by trained and
qualifi ed personnel 18 years of age and older.
Whenever necessary, replace nameplate, operation and
safety decals when they become diffi cult read.
Manufacturer does not assume responsibility for any
accident due to equipment modifi cations. Unauthorized
equipment modifi cation will void all warranties.
NEVER disconnect any
These devices are intended for operator safety.
devices will void all warranties.
CAUTION
NEVER lubricate components or attempt service on a
running machine.
NOTICE
ALWAYS
ALWAYS
Fix damage to machine and replace any broken parts
immediately.
ALWAYS
SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12) — PAGE 7
ENGINE SAFETY
NOTICE
run engine without an air fi lter or with a dirty air
fi lter. Severe engine damage may occur. Service air fi lter
Wet stacking is a common problem with diesel engines
no load applied. When a diesel engine operates without
suffi cient load (less than 40% of the rated output), it will
not operate at its optimum temperature. This will allow
In order for a diesel engine to operate at peak effi ciency,
it must be able to provide fuel and air in the proper ratio
and at a high enough engine temperature for the engine
applied to relieve the condition. It can reduce the system
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
from the engine exhaust. Spark arresters are qualifi ed
SAFETY INFORMATION
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
fl ow of cooling air. NEVER
operate this equipment in
any enclosed or narrow area
where free fl ow of the air is
restricted. If the air fl ow is
restricted it will cause injury to people and property and
serious damage to the equipment or engine.
WARNING
DO NOT pla c e hand s or f i n g e rs in s ide en gine
compartment when engine is running.
NEVER operate the engine with heat shields or
guards removed.
Keep fi ngers, hands hair and clothing away
from all moving parts to prevent injury.
DO NOT remove the 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.
NEVER
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.
which are operated for extended periods with light or
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.
to completely burn all of the fuel.
Wet stacking does not usually cause any permanent
damage and can be alleviated if additional load is
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
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,
muffl er or cylinder. Allow these parts to cool
before servicing equipment.
PAGE 8 — SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12)
to prevent accidental discharge of sparks or fl ames
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.
FUEL SAFETY
DANGER
Make sure the hitch and coupling of the towing vehicle
NEVER
tow a trailer with defective hitches, couplings, chains, etc.
Trailer tires should be infl ated to 50 psi cold.
safety
attach trailer’s safety chains to towing
make sure the vehicle and trailer directional,
unless
posted otherwise. Recommended off-road towing is not to
Avoid sudden stops and starts. This can cause skidding,
Trailer should be adjusted to a level position at all times
rolling
underneath the trailer’s bumper
Use the trailer’s swivel jack to adjust the trailer height to
SAFETY INFORMATION
are rated equal to, or greater than the trailer “gross
vehicle weight rating.”
DO NOT start the engine near spilled fuel or combustible
fl uids. Diesel fuel is extremely fl ammable and its vapors
can cause an explosion if ignited.
ALWAYS refuel in a well-ventilated area, away from
sparks and open fl ames.
ALWAYS use extreme caution when working with
fl ammable liquids.
DO NOT fi ll the fuel tank while the engine is running
or hot.
DO NOT overfi ll tank, since spilled fuel could ignite if it
comes into contact with hot engine parts or sparks from
the ignition system.
Store fuel in appropriate containers, in well-ventilated
areas and away from sparks and fl ames.
NEVER use fuel as a cleaning agent.
DO NOT sm o ke around or near the
equipment. Fire or explosion could result
from fuel vapors or if fuel is spilled on a
hot engine.
TOWING SAFETY
Check with your local county or state safety
towing regulations, in addition to meeting
Depar tment 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
CAUTION
ALWAYS inspect the hitch and coupling for wear.
Check the tire air pressure on both towing vehicle and
trailer.
Also check the tire tread wear on both vehicles.
ALWAYS make sure the trailer is equipped with a
chain.
ALWAYS properly
vehicle.
ALWAYS
backup, brake and trailer lights are connected and
working properly.
DOT Requirements include the following:
• Connect and test electric brake operation.
• Secure portable power cables in cable tray with tie
wraps.
The maximum speed for highway towing is 55 MPH
exceed 15 MPH or less depending on type of terrain.
or jack-knifi ng. Smooth, gradual starts and stops will
improve towing.
Avoid sharp turns to prevent rolling.
when towing.
Raise and lock trailer wheel stand in up position when
towing.
Place chock blocks underneath wheel to prevent
while parked.
Place support blocks
to prevent tipping while parked.
a level position while parked.
SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12) — PAGE 9
ELECTRICAL SAFETY
DANGER
Make sure power cables are securely connected to the
make certain that proper power or extension
cord has been selected for the job. See Cable Selection
make sure that electrical circuits are properly
Severe injury or death by
can result from operating an ungrounded
DO NOT touch output terminals during
operation. Contact with output terminals
during operation can cause electrocution,
electrical shock or burn.
SAFETY INFORMATION
generator’s output receptacles. Incorrect connections
may cause electrical sho ck and dam age to the
generator.
NOTICE
ALWAYS
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 dur ing 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.
Chart in this manual.
Grounding Safety
DANGER
ALWAYS
grounded to a suitable earth ground (ground rod) per
the National Electrical Code (NEC) and local codes
before operating generator.
electrocution
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 — SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12)
SAFETY INFORMATION
BATTERY SAFETY
ENVIRONMENTAL SAFETY
pour waste, oil or fuel directly onto the ground,
DANGER
DO NOT drop the battery. There is a possibility that the
battery will explode.
DO NOT expose the battery to open fl ames,
sparks, cigarettes, etc. The battery contains
combustible gases and liquids. If these
gases and liquids come into contact with a
fl ame or spark, an explosion could occur.
WARNING
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.
NOTICE
Dispose of hazardous waste properly.
Examples of potentially hazardous waste
are used motor oil, fuel and fuel fi lters.
DO NOT use food or plastic containers to
dispose of hazardous waste.
DO NOT
down a drain or into any water source.
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.
SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12) — PAGE 11
Model
Type
Armature Connection
No of Poles
Prime Output
SPECIFICATIONS
Table 1. Generator Specifications
SG1400C3
Revolving field, self ventilated,
open protected type synchronous generator
12-Lead WYE
4
200 kVA
1Ø Voltage
3Ø Voltages
Frequency
Voltage Regulation
(no load to full load)
Frequency Regulation
(steady state load)
Speed
Power Factor
Aux. AC Voltage
Weight (Generator Only)
Weight (Trailer Only)
Dimensions (LxWxH)
Model
Emissions
Type
No. of Cylinders
Bore x Stroke in (mm)
Displacement
Rated Output
Starting
Coolant Capacity
Lube Oil Capacity
Fuel Type
Fuel Tank Capacity
Fuel Consumption
120/240 V
120/208 V and 277/480 V
60 Hz
±1%
±0.25%
1800 rpm
0.8
120/240V, 60 Hz
5,900 lbs. (2,994 kg)
2,640 lbs. (1,170 kg)
100 x 48 x 110 in (254 x 122 x 279 cm)
Table 2. Engine Specifications
Cummins QSB7-G5
Tier 3
4 cycle, direct injection, turbocharged,
charge air cooled
6 cylinders
4.21 x 4.88 (107 x 124)
408 cu. in. (6,690 cc)
279 HP/1800 RPM
Electric
7.8 gal. (29 liters)
5.0 gal. (19.0 liters)
#2 Diesel Fuel
150 gal. (567 liters)
13.3 gal. (64 L)/hr at full load 10.6 gal. (40 L)/hr at 3/4 load
7.8 gal. (30 L)/hr at 1/2 load 4.0 gal. (15 L)/hr at 1/4 load
Table 3. Battery Specifications
Battery (Top Post)
Dimensions HxWxL in. (cm)
PAGE 12 — SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12)
12V 750 CCA x 2 (24 VDC System ) Group 27
8 x 12 x 6.6 (20.3 x 30.5 x 16.8)
TOP VIEW
DIMENSIONS
A
B
Figure 1. Dimensions
SIDE VIEW
L
FRONT VIEW
C
D
E
F
G
H
J
I
K
Table 4. Dimensions
Reference
M
AC VOLTS
AC AMPERES
AC AMPERES
AC AMPERES HERTZ
Letter
A 90 (2,286) H 130 (3,302)
B 115 (2,921) I 22.5 (571)
C 96 (2,438) J
D 27 (686)
E 24 (610)
Dimensions
in. (mm)
Reference
Letter
J
K
Dimensions
in. (mm)
23 (584)
Chrome Wheels
24 (610)
Aluminum Wheels
180 (4,572)
F 24 (610)
G 79 (2,007) M 47 (1,194)
L
24.5 (622)
SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12) — PAGE 13
INSTALLATION
GROUND LUG
NOTE: GROUND LUG MUST
BE INSTALLED BY USER.
GENERATOR
GROUND CABLE
8 FT. MINIMUM
REFERENCE
NEC 250-52(C)
GROUND ROD
FOR EARTH
GROUND
CONNECT TO
BUILDING
GROUND
Figure 2. Typical Generator Grounding Application
PAGE 14 — SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12)
INSTALLATION
OUTDOOR INSTALLATION
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.
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 shor t 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.
GENERATOR GROUNDING
To guard against electrical shock and possible damage to
the equipment, it is important to provide a good EARTH
ground.
Article 250 (Grounding) of the National Electrical Code
(NEC) provides guidelines 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 - 10 AWG (5.3 mm2)
b. Aluminum - 8 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.
INDOOR INSTALLATION
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.
3. NEC article 250-52(c) specifies that the earth ground rod
should be buried a minimum of 8 ft. into the ground.
NOTICE
When connecting the generator to any buildings
electrical system ALWAYS consult with a licensed
electrician.
NOTICE
If connection of the ground rod is not feasible, please
check city, local or state electrical requirements on
generator grounding requirements.
SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12) — PAGE 15
GENERAL INFORMATION
Generator
The MQ Power Model SG1400C3 is a 200kVA studio
generator that is designed as a high quality power source
for entertainment and studio applications.
In keeping with Multiquip's policy of constantly improving
its products, the specifications quoted herein are subject
to change without prior notice.
Permanent Magnet Generator Excitation System
The SG1400C3 generator is equipped with a PMG
(Permanent Magnet Generator) generator end. The
excitation system provides a minimum short circuit support
current of 300% of the standby rating for 10 seconds at 60
Hz, and approximately 275% at 50 Hz.
Both the PMG and the exciter are mounted outboard of the
bearing for ease of maintenance. The rotating brushless
exciter features hermetically sealed diodes for three-phase
full-wave rectification. The three-phase bridge is protected
against abnormal transient conditions by a multiplate
selenium surge protector.
Engine
shaft continues to rotate, the main rotor (field) induces a
voltage into the generator's main stator (armature). At rated
speed, the main stator's voltage produced by the residual
magnetism of the exciter allows the automatic voltage
regulator to function.
The regulator provides voltage to the exciter resulting in
a build-up of generator terminal voltage. This system of
using residual magnetism eliminates the need for a special
field flashing circuit in the regulator. After the generator
has established the initial residual voltage, the regulator
provides a controlled DC field voltage to the exciter stator
resulting in a controlled generator terminal voltage.
Voltage Regulation
In the standard configuration (shunt excited), the automatic
voltage regulator receives both its input power and voltage
sensing from the generator's output terminals. The regulator
automatically monitors the generator's output voltage
against an internal reference set point and provides the
necessary DC output voltage to the exciter field required
to maintain constant generator terminal voltage. The
generator's terminal voltage is changed by adjusting the
regulator's reference set point.
This generator is powered by a six-cylinder, 4-cycle direct
injection, turbocharged, air-cooled Cummins QSB7-G5
diesel engine. Engine speed is set at the factory at 1800
RPM. This engine is designed to meet every performance
requirement for the generator. Refer to Table 2 for engine
specifications.
Principle Of Operation
This generator is a brushless, self-excited, externally
voltage regulated, synchronous AC generator. The
generator is made up of six major components: main stator
(armature), main rotor (field), exciter stator (field), exciter
rotor (armature), rectifier assembly, and voltage regulator.
The generator's exciter consists of a stationary field and
a rotating armature. The stationary field (exciter stator)
is designed to be the primary source of the generator's
residual magnetism. This residual magnetism allows the
exciter rotor (armature) to produce AC voltage even when
the exciter stator (field) is not powered. This AC voltage
is rectified to DC by the rotating rectifier assembly and
fed directly to the main rotor (field). As the generator
Electronic Governor System
The electronic governor system controls the RPMs of the
engine. When the engine demand increases or decreases,
the governor system regulates the frequency variation to
± 0.25%.
Battery
The battery system is located in the engine compartment
on the sub-base. The battery’s primary purpose is to
provide starting power for the diesel engine starter motor.
The battery system is comprised of two 12 VDC, sealed
lead acid batteries wired in series to provide 24 VDC to
the starting motor. The battery is charged by the charging
alternator while the engine is engaged.
Exhaust System
The exhaust system is located above the diesel engine. The
exhaust system is comprised of rigid and flexible tubing, a
silencer, and a roof-mounted exhaust riser with a rain cap.
PAGE 16 — SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12)
GENERAL INFORMATION
Fuel Tank
This generator can be equipped with a 150 gallon (567
liters) fuel tank located beneath the trailer deck. The tank
is made of steel (baffled). The tank can be filled from an
external fill port located on the side of the trailer. The fill
port has a 2-inch (51 mm) fill neck with vented cap.
When refueling, it is recommended to use ASTM-D975/No.
2 diesel fuel. A drain port is provided on the end of the tank.
Fuel Priming Pump
The generator set is equipped with an electric (24 VDC)
fuel priming pump to assist in priming the system for
maintenance purposes. The priming pump, bypass valves,
and priming switch are located on the side of the diesel
engine in the engine compartment.
Fuel Water Separator
A 30-micron Racor 900 fuel water separator is part of the
fuel system assembly and is located on the side of the
engine in within the enclosure compartment.
The supply line between the engine fuel pump and tank
passes through an in-line fuel/water separator filter. The
filter element is rated to filter elements down to 10 microns.
Intake Ventilation Door
Interior Lighting
The interior lighting system is distributed throughout the
interior. There are three separate lighting fixtures. Two
lights are in the engine compartment, and one light is in
the generator compartment.The lighting system operates
from the 24 VDC battery system.
The light fixtures are sealed incandescent bulbs which are
activated by a 0-15 minute timer switch located on the side
control panel box. The DC lighting system can be used to
perform off-line maintenance or assist in setup prior to AC
power connection.
Trailer (Optional)
If equipped, the generator set can be mounted on a tandem
axle trailer. Standard trailer is available with 8-lug chrome
wheels and electric or hydraulic brakes. Options may
include electric jack stands, adjustable hitch, ground rod
holder and rear stabilizing jacks.
OPTIONS
Battery Charger — 24 VDC/3 AMP, 120 V Input
Battery Disconnect Switch — 400 Amps
Optima Red Top Batteries — Replaces standard
batteries
The intake air ventilation door is located on the roof of the
generator set enclosure near the control panel. The door is
hydraulically actuated. Upon startup of the diesel engine,
pressure fills the cylinder and opens the door. Intake air
passes through the opening, and across the engine’s
radiator to cool the engine.
During rainy conditions the roof ventilation door will close
when the front ventilation door is opened.
Block Heater —120 V, 1500 Watt
CSA Package — Includes 400 Amp and 200 Amp Circuit
Breakers
Exterior Lights
Fire Extinguisher and Box — Mounted on Door
Forklift Base
GPS and Remote Monitoring Module
Lift-off Doors
Low Oil Murphy Swichgage®
Oil Level Sight Glass
30-Micron Racor 1000 Fuel/Water Separator —
Replaces Racor 900
SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12) — PAGE 17
GENERAL INFORMATION
InteliVision 5 ™ Digital Controller
The InteliVision 5 Digital Controller provides monitoring
and fault detection capability of all engine and generator
operating parameters. A list of operating parameters is
shown below:
AC Metering Display
• Voltage/Amperage / Frequency
• Generator Phase Voltage / Current
• Generator Frequency
Engine Information Display
• Engine Temperature / Oil Pressure (psi)
• Battery Voltage (DC) / Tachometer
• Hourmeter
Minor Fault Warning Display
• Switch Not In Auto
• Low Fuel Level
• Low Oil Pressure Alarm
• Low Engine Temperature
• High Engine Temperature Alarm
• Low Battery Voltage
• High Battery Voltage
• Weak Battery Condition
• Battery Charger Input Fail
• Undervoltage
• Over / Underfrequency
• Overcurrent
Major Fault Shutdown Display
• Overvoltage
• Emergency Stop
• Loss Of Speed
• Overcrank
• Overspeed
• Low Oil Pressure
• High Engine Temperature
• Low Coolant Level
• Spare Programmable Digital Faults
Switches And Operating Controls
• Run / Off / Auto / Load Test Buttons
• Decrement / Increment / Previous
(Exit) /Next (Enter) Program Buttons
• Emergency Stop Button
• Audible Alarm Horn
• Alarm Horn Silence Button
• Lamp Test Button
• Fault Reset Function
• RS-485 Remote Communications,
External Expansion Module Ports
Timer Countdown Display
• Engine Start Delay
• Oil Bypass
• Overcrank
• Cycle Crank
• Starter Re-engage Delay
• Bypass Delay
Control LED Indicators
• Switch Position (Run, Off, Auto, Test)
• Common Alarm (Minor Fault)
• Common Shutdown (Major Fault)
• Generator Ready (When in Auto)
• Speed Signal
• Emergency Stop
Diagnostic LED Indicators:
• Run Output Energized
• Crank Output Energized
• Remote Start Signal Initiated
• Common Fail Output Energized
• Watchdog - CPU Running
• Programmable Output Contacts
PAGE 18 — SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12)
NOTES
SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12) — PAGE 19
GENERATOR MAJOR COMPONENTS
3
1
4
2
14
13
30
15
31
16
32
33
17
11
6
5
7
12
9
10
8
Figure 3. Major Components
18
19
20
21
22
PAGE 20 — SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12)
29
28
24
GENERATOR MAJOR COMPONENTS
23
Inside
34
Housing
24
25
26
27
Figure 3. Major Components
Table 5. Generator Major Components
ITEM
NO.
DESCRIPTION
ITEM
NO.
DESCRIPTION
ITEM
NO.
DESCRIPTION
1 Muffler 13 Hydraulic Oil Sight Gauge 25 Rain Door Intake Vent
2 Air Filter 14 Fuel Priming Pump Switch 26 Control Box
3 Hydraulic Cylinders 15 Fuel-Water Separator 27 Camlok Panel
4 Coolant Overflow Bottle 16 Hydraulic Actuator Manifold 28 Rain Cap
Charge Oil Cooler
5
(Hydraulic)
17 Radiator 29 Housing Assembly
6 Charge Air Cooler 18 Interior Lights 30 Water Drain
7 Saddlebox 19 Circuit Breaker Panel 31 Oil Drain
8 3 kVA Transformer 20 Fuel Pump 32 Fuel In
9 Generator 21 Hydraulic Oil Tank 33 Fuel Out
10 Fuel Gauge 22 Batteries 34 GPS Module (Option)
11 Fuel Cap, Vented 23 Roof Intake/Exhaust Vents
12 Hydraulic Oil Filter 24 Exterior Lights (Option)
SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12) — PAGE 21
BASIC ENGINE COMPONENTS
1
11
2
10
6
3
4
5
Figure 4. Basic Engine Components
7
9
8
Table 6. Basic Engine Components
ITEM NO. DESCRIPTION
1 Oil Filler Cap
2 Alternator
3 Oil Filter
4 Starter
5 Oil Drain Plug
6 Belt
7 Water Pump
8 Oil Dipstick
9 Fuel Filter
10 Fuel Rail
11 Turbocharger
PAGE 22 — SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12)
BASIC TRAILER COMPONENTS
1
2
4
3
5
14
13
19
18
17
Figure 5. Basic Trailer Components
The definitions below describe the controls and functions
of the Trailer (Figure 6).
1. Pintle Eye Coupler — Adjustable 3-inch eye coupler
rated at 20,000 lbs. (9,072 kg).
12
9
6
7
16
8
15
10
11
10. License Plate Lights — Illuminates license plate.
11. Axle — Tandemum axle, Gross Axle Weight Rating
(GAWR) 6,000 lbs. (2,722 kg) Gross Vehicle Weight
Rating is 10,000 lbs. (4,536 kg).
2. Hydraulic Brake Actuator — Replaceable bolt-on
actuator, assists in the stopping of the trailer. Rated at
12,000 lbs. (5,443 kg)
3. Spare Tire — Tongue mounted spare tire with anti-theft
wheel lock and locking mount.
4. Jackstand — Tongue mounted swivel jack with flat
disc foot, rated 5000 lbs. (2,268 kg) lift.
5. Reflectors — Side mounted reflectors are mounted on
both sides of the trailer to provide high visibility when
towing in dark areas.
6. Tires — Recommended tire size is LT235/85R16 LR E.
Tire load rating is 3,500 lbs/tire.
7. Reflective Tape — Provides high visibility when towing
in dark areas.
8. Brake/Turn Lights — DOT approved tail, stop, and
turn signal lamps.
9. Bumper Guard — Protects trailer frame when coming
in contact with stationary objects.
12. Rear Bumper Reflectors — Provides high visibility
when towing in dark areas.
13. Safety Chains — Connect to towing vehicle. Reference
towing section in this manual.
14. Tool Box — Tongue mounted tool box, lift spare tire
to gain access to this compartment
15. Fuel Tank — Holds 150 gallons (568 liters) of No. 2
diesel fuel.
16. Fuel Tank Filler Port — Fuel filler port, 2-inch (51 mm)
neck.
17. Side Running Lamps — Provides high visibility when
towing in dark areas.
18. Tool Box Locking Latch — Release this latch to gain
access to tool box. Pull spare tire upward and back.
19. Plug Holder — Holds trailer harness (lights) cable plug.
SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12) — PAGE 23
CONTROL PANEL
2
1
8
7
16
17
3
6
Figure 6. Control Panel
4
5
The definitions below describe the controls and functions
of the Control Panel (Figure 6).
1. Voltage Adjust Switch — To increase the output
voltage, pull upward and hold the switch until the
desired voltage is achieved by monitoring the AC
voltage display (item 8). To decrease the voltage, pull
downward.
2. Line 1 AC Amps Display — Indicates the amount of
current the load is drawing from line 1 of the generator.
3. Line 2 AC Amps Display — Indicates the amount of
current the load is drawing from line 2 of the generator.
4. Line 3 AC Amps Display — Indicates the amount of
current the load is drawing from line 3 of the generator.
5. Voltage Status LEDs — During operation these status
LED's will indicate the phase/voltage of the generator,
3Ø-277/480, 3Ø-120/208 or 1Ø-120/240.
6. Frequency Display — Indicates the frequency of the
generator in Hertz.
7. AC Voltmeter Display — Indicates the output voltage
present at the camlok terminals. This display is used in
conjunction with the voltmeter select switch (item 8).
13
12
11
14
15
9
10
10. Controller Power Switch — Provides power to engine
controller.
11. Light Switch — In the up position, turns on exterior
lights. In the down position, turns on panel lighting. In
the center position, turns off all lights.
12. Panel Lights — Located on each side of the digital
control panel is a panel light. Lights are activated by
light switch.
13. Light Timer Control — The interior lights are controlled
by an electronic turn dial timer that allows the operator
to turn on the lights inside the generator for up to 15
minutes. The lights will automatically shut off when the
timer reaches zero.
14. AC Output Connector — Provides AC power to
various electronic assemblies.
15. DC Output Connector — Provides DC power to
engine interface.
16. Fan Control Module — Provides necessary control
electronics to operate fan.
17. Engine Com Connector — 9-pin connector for
communication to engine via a PC with engine software.
8. Voltmeter Selector Switch — Place switch in desired
position to read line-line or line-neutral voltage. Switch
is used in conjunction with AC voltmeter display (item 7).
9. Digital Controller — Starts and stops the generator
and monitors various engine operating parameters.
PAGE 24 — SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12)
1 2
CAMLOK/VOLTAGE OUTPUT PANEL
3
4
7 7
5
6
88
Figure 7. Camlok/Voltage Output Panel
The definitions below describe the controls and functions
of the Camlok/Voltage Output Panel (Figure 7).
1. CB4/CB5 Circuit Breakers — These circuit breakers
protect the 120 VAC auxiliary output receptacles from
overload.
2. CB6/CB7 Circuit Breakers — These circuit breakers
protect the bates output receptacles from overload.
3. Generator Voltage Test Points — To determine if
the generator's output voltage is present and correct,
connect a test meter to these test points during
troubleshooting and maintenance.
4. Paralleling Cable In — This Ethernet input connection
point is used when multiple generators are going to be
connected.
5. Paralleling Cable Out — This Ethernet output
connection point is used when multiple generators are
going to be connected.
GREEN WHITE RED BLUE BLACK
9
7. 120 VAC Output Receptacles — These 15-amp
receptacles provide 120 VAC output. The maximum
allowable combined amps (both receptacles) is 25 amps
when the voltage selector switch in the 3Ø 277/480 VAC
position.
8. Bates 120VAC Output Receptacles — These
receptacles provide AC voltage output. Each receptacle
is protect by a 100 amp breaker. These receptacles
cannot be used when the voltage selector switch is in
the 3Ø 277/480 VAC position.
9. Camlok Receptacles — These output voltage
connection points (6 pairs) are used for load connection.
ALWAYS pay close attention when connecting and
disconnecting power cables from these camlok
receptacles. The possibility exists of electrocution,
shock or even death if cables are connected or
unplugged when the bus hot indicator lamp is lit.
6. BUS Hot Indicator Lamp — When lit, this indicator
lamp informs that the voltage bus is active (high
voltage). NEVER connect or disconnect cables from
the camlok or auxiliary receptacles when this indicator
is ON. The possibility exists of electrocution, shock or
even death if cables are connected or unplugged when
this indicator is lamp lit.
SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12) — PAGE 25
CIRCUIT BREAKER PANEL
2
3
Electronic Trip Unit
450 AMP
LONG — INST.
Push to Trip
Instantaneous Trip Setting - Amps
E
D
F
C
G
BAH
A — 500
B — 600
C — 800
D — 1000
E — 1250
F — 1500
G — 2000
H — 2500
Test
Status
1
4
Figure 8. Main Breaker Panel
The definitions below describe the controls and functions
of the Main Breaker Panel (Figure 8).
1. CB2 Circuit Breaker — This breaker monitors, senses
the generator voltage bus. If breaker trips, signal is
sent to controller.
2. CB3 Circuit Breaker — This breaker monitors,
senses the voltage bus. If breaker trips, signal is sent
to controller.
Electronic Trip Unit
450 AMP
LONG — INST.
NOTICE
When setting the trip point on the electric trip unit, be
careful not to set the trip point too high. Setting the
trip point too high may cause the main breaker not
to trip. This condition could cause serious damage to
the equipment, and serious bodily harm even death to
operating personnel.
Push to Trip
Instantaneous Trip Setting - Amps
E
F
G
A — 500
B — 600
C — 800
D — 1000
D
C
BAH
E — 1250
F — 1500
G — 2000
H — 2500
Test
Status
3. Main Circuit Breaker — This 600 amp breaker
protects the camlok receptacles (load) from overload.
4. Electronic Trip Unit — This unit protects the generator
from in-rush current (load spikes).
Always be conservative when setting the trip point. The
trip setting for this generator is position B 600 amps.
DO NOT adjust the trip point setting when the
equipment is in operation.
PAGE 26 — SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12)
11
14
13
12
DIGITAL CONTROLLER
1
2
4
5
3
15
10
Figure 9. Digital Controller
Refer to Figure 9 for location of controls and indicators.
1. STATUS LED — Indicates status of the controller.
Lights green when the controller is running.
9
NAVIGATIONS BUTTONS
2. ARROW UP Button — Press button to scroll up
through the status menus or programming prompts.
3. ARROW DOWN Button — Press button to scroll down
through the status menus or programming prompts.
4. MENU Button — Press button to jump to menu/sub-
menu page or escape from any dialog window.
5. ENTER Button — Press button to confirm a value or
open a value adjustment within setting dialogs.
CONTEXT BUTTONS
8
7
6
CONTROL BUTTONS
11. START Button — Press button to go idle mode (about
an hour) then generator starts. A second press will
bypass idle mode and generator goes to full speed
immediately.
12. STOP Button — Press button to cool the generator
for about 5 minutes then the generator will stop. A
second press will bypass cool down and will stop the
generator immediately.
NOTICE
START and STOP buttons work in MAN (manual) or
SEM (semi-manual) mode only.
13. FAULT RESET Button — Press button to acknowledge
faults and alarms (active only in Alarm screen).
6. MODE Button — Press button to jump to the controller
mode window.
7. HISTORY Button — Press button to jump to history
screen.
8. ALARM Button — Press button to jump to alarm list
9. GCB (Generator Circ uit Breake r) CON TROL
Button — Press button to close/open GCB.
10. MCB CONTROL Button — Not functional in this
application.
SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12) — PAGE 27
14. HORN RESET Button — Press button to deactivate
the horn (audible alarm).
15. DISPLAY — Shows menu, measurements, setpoints,
alarm list, history, and help/others screens.
NOTICE
For more detailed operating and programming
information on the digital controller, refer to the
InteliVision 5™ Controller User's Guide.
LOAD APPLICATION/GENERATOR OUTPUT
SINGLE 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.
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 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 1.0. See Table 7 below
when connecting loads.
Table 7. Power Factor By Load
Type of Load Power Factor
THREE PHASE LOAD
When calculating the power requirements for 3-phase
power use the following equation.
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
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. Refer to
Table 8 to select the correct cable size.
When connecting a resistance loa d such as an
incandescent lamp or electric heater, a capacity of up to
the generator’s rated output (kW) can be used.
Single-phase induction motors 0.4-0.75
Electric heaters, incandescent lamps 1.0
Fluorescent lamps, mercury lamps 0.4-0.9
Electronic devices, communication
equipment
1.0
Common power tools 0.8
Table 8. Cable Selection (60 Hz, Single Phase Operation)
Current
in
Amperes
2.5 300 600 1000 ft. 600 ft. 375 ft. 250 ft.
5 600 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.
20 2400 4800 125 ft. 75 ft. 50 ft.
Load in Watts Maximum Allowable Cable Length
At 100
Volts
CAUTION: Equipment damage can result from low voltage
At 200
Volts
#10 Wire #12 Wire #14 Wire #16 Wire
When connecting a fluorescent or mercury lamp, a
capacity of up to the generator'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.
When connecting ordinary power tools, a capacity of up to
the generator’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
a transfer switch. Serious damage to the building’s
electrical system may occur without this transfer switch.
PAGE 28 — SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12)
GENERATOR OUTPUTS
120/208
277/480 120/240
3
1
3
GENERATOR OUTPUT VOLTAGES
A wide range of voltages are available to supply voltage for
many different applications. Voltages are selected by using
the voltage selector switch (Figure 10). To obtain some
of the voltages as listed in Table 9 (see below) will require
a fine adjustment using the voltage adjust toggle switch
located on the digital control panel.
Voltage Selector Switch
The voltage selector switch (Figure 10) is located on the
back side of the Saddle Box Assembly. It has been provided
for ease of voltage selection.
Generator Amperage
Table 10 shows the maximum amps the generator can
provide. DO NOT exceed the maximum amps as listed.
Table 10. Generator Maximum Amps
Rated Voltage Line Amps Total Amps
1Ø 240 Volt 538 amps 1076 amps
3Ø 208 Volt 466 amps 1400 amps
3Ø 480 Volt 202 amps 606 amps
Figure 10. Voltage Selector Switch
.
CAUTION
NEVER change the position of the voltage selector
switch while the engine is running. ALWAYS place
main circuit breaker in the OFF position before selecting
voltage and activate voltage change mode switch.
L1 L2 L3 Output
Terminal Lugs
Line-Line
3Ø
1Ø Line-Neutral 120V 127V 139V 240V 254V 277V
1Ø Line-Neutral/
Line-Line
NOTICE
Controller has over/under-voltage protection based on
208 V nominal/480 V nominal/240 V nominal voltage.
Table 9. Voltages Available
Voltage Selector Switch
3-Phase 120/208V Position
208V 220V 240V 416V 440V 480V
Voltage Selector Switch Single-Phase 240/120V Position
120V
Line-Neutral
N/A N/A
Voltage Selector Switch
3-Phase 480/277V Position
240V
Line-Line
N/A N/A
SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12) — PAGE 29
INSPECTION/SETUP
MAIN CIRCUIT BREAKER
The generator is equipped with a 3-pole, 600-amp circuit
breaker to protect the camlok receptacles from overload.
Make sure that the main circuit breaker is in 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 11) on the dipstick. See Table 11
for proper selection of engine oil.
Figure 11. 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
Table 11. Recommended Motor 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 understood this section should refill the fuel tank
system.
This generator has a fuel tank located in the sub base
assembly frame. ALWAYS fill the fuel tank with clean fresh
#2 diesel fuel. DO NOT fill the fuel tank beyond its capacity.
Pay attention to the fuel tank capacity when replenishing
fuel. The fuel tank cap must be closed tightly after filling.
Handle fuel in a safe container. If the container does
not have a spout, use a funnel. Wipe up any spilled fuel
immediately.
Refueling Procedure:
WARNING
Diesel fuel and its vapors are dangerous
to your healt h and the surro unding
environment. Avoid skin contact and/or
inhaling fumes.
CAUTION
ALWAYS make sure generator is on firm level ground
before refueling to prevent spilling and maximize the
amount of fuel that can be pumped into the tank.
PAGE 30 — SG1400C3 STUDIO GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (02/15/12)
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