Generac Power Systems MAGNUM MMG75D, MAGNUM MMG100D Operating Manual
DIESEL GENERATOR
MMG75D • MMG100D
TM
With Controller
01886
OPERATING MANUAL
Parts manuals available online at www.generacmobile.com
33701 C 02/16
WARNING
CALIFORNIA PROPOSITION 65 WARNING: Diesel engine exhaust and some of its
constituents are known to the state of California to cause cancer, birth defects, and
other reproductive harm. (000004)
WARNING
CALIFORNIA PROPOSITION 65 WARNING: This product contains or emits chemicals
known to the state of California to cause cancer, birth defects, and other reproductive
harm. (000005)
WARNING
ENVIRONMENTAL HAZARD: Always recycle batteries at an official recycling center in
accordance with all local laws and regulations. Failure to do so could result in
environmental damage, death or serious injury. (000228)
ii
Introduction
This manual provides information and procedures to safely operate and maintain the Generac Mobile Products unit.
For your own safety and protection from physical injury, carefully read, understand, and observe the safety instructions
described in this manual. Keep a copy of this manual with the unit at all times. Additional copies are available from
Generac Mobile Products, or can be found at www.generacmobile.com.The information contained in this manual
was based on machines in production at the time of publication. Generac Mobile Products reserves the right to
change any portion of this information without notice.
Read all of the manuals included with the unit. Each manual details specific information regarding items such as
setup, use and service requirements. An engine operator’s manual provides detailed operation and maintenance
procedures for the engine. Additional copies of the engine operator’s manual are available from the engine
manufacturer.
DO NOT MODIFY or use this equipment for any application other than for which it was designed.
Only a trained and licensed electrician should perform wiring and connections to unit. Wiring must be in compliance
with National Electrical Code (NEC), state and local regulations, as well as Occupational Safety and Health
Administration (OSHA) guidelines.
GENERAC MOBILE PRODUCTS LLC
215 Power Drive • Berlin, WI 54923
U.S.A.
Phone: 920-361-4442
FAX: 920-361-4416
Toll Free: 1-800-926-9768
www.generacmobile.com
For technical or parts QUESTIONS, please contact the Generac Mobile Products Customer Support
or Technical Support team at 1-800-926-9768. Please have your serial number available.
To ORDER SERVICE PARTS, please contact the dealer from which you purchased the unit, or call
Generac Mobile Products to locate a dealer in your area.
Engine Make:__________________________________________
Engine Serial Number:___________________________________
Engine Model Number: __________________________________
Generator Make: _______________________________________
Generator Model Number: ________________________________
Generator Serial Number: ________________________________
Unit Model Number:_____________________________________
Unit Serial Number: _____________________________________
iii
This Page Intentionally Left Blank
iv
Table of Contents
Section 1 - Safety
Safety Notes ....................................................................................................................................... 1
Operating Safety................................................................................................................................. 1
Engine Safety ..................................................................................................................................... 2
Service Safety .................................................................................................................................... 2
Towing Safety..................................................................................................................................... 3
Reporting Trailer Safety Defects ........................................................................................................ 3
Safety Symbol Summary .................................................................................................................... 4
Section 2 - General Information
Specifications ..................................................................................................................................... 5
Unit Dimensions .................................................................................................................... 7
Unit Serial Number Locations............................................................................................................. 8
Component Locations......................................................................................................................... 9
Control Panel.................................................................................................................................... 10
Power Zone™ Gen Controller .......................................................................................................... 11
Controller Features and Functions ......................................................................................11
Maintenance Screens.......................................................................................................... 14
Generator Monitoring........................................................................................................... 18
Engine Monitoring................................................................................................................ 18
Diesel Exhaust Filter Monitoring.......................................................................................... 18
Controller Information Displays, Functions, and Reset ....................................................... 19
Belt Tensioners................................................................................................................................. 20
Front Hood Operation....................................................................................................................... 20
To Open the Front Hood...................................................................................................... 20
To Close the Front Hood .....................................................................................................21
Section 3 - Operation
Prestart Checklist ............................................................................................................................. 23
Manually Starting the Unit ................................................................................................................ 23
Auto (Remote) Starting the Unit ....................................................................................................... 24
Transfer Switch................................................................................................................................. 25
Derating for Altitude.......................................................................................................................... 26
Generator Output Connections......................................................................................................... 27
Fine Voltage Adjustment .................................................................................................................. 27
Voltage Selector Switch.................................................................................................................... 28
Voltage Regulator............................................................................................................................. 29
Customer Convenience Receptacles ............................................................................................... 30
Main Circuit Breaker ......................................................................................................................... 30
Exhaust Filter Cleaning Operations.................................................................................................. 31
Disabling Automatic (Auto) Exhaust Filter Cleaning............................................................ 31
Force a Manual Exhaust Filter Cleaning ............................................................................. 31
Enable Exhaust Filter Cleaning ...........................................................................................32
Auto Exercise Timer ......................................................................................................................... 32
Accessing the Configuration Menu...................................................................................... 32
Set the Controller Clock....................................................................................................... 32
Set the Schedule ................................................................................................................. 32
Set the Unit to Auto Mode ................................................................................................... 33
Shutting Down the Unit..................................................................................................................... 33
Emergency Stop Switch ................................................................................................................... 34
ECU Override Switch........................................................................................................................ 34
Towing the Unit................................................................................................................................. 34
Lifting the Unit................................................................................................................................... 35
v
Section 4 - Maintenance
Emissions Information ...................................................................................................................... 37
Daily Walk Around Inspection........................................................................................................... 37
General Maintenance ....................................................................................................................... 37
Basic Maintenance Schedule ........................................................................................................... 38
Engine Break-In Requirements ........................................................................................................ 39
Resetting the Maintenance Alarms................................................................................................... 39
Exhaust Filter Service Requirements ............................................................................................... 40
Checking Generator Drive Plate Torque .......................................................................................... 40
Jack Maintenance............................................................................................................................. 41
Side-Wind Models ............................................................................................................... 41
Top-Wind Models ................................................................................................................ 41
Trailer Wheel Bearings ..................................................................................................................... 41
Section 5 - Troubleshooting
General Troubleshooting .................................................................................................................. 43
Section 6 - Wiring Diagrams
AC Wiring - 3 Position Voltage Selector Switch ............................................................................... 45
AC Wiring - 4 Position Voltage Selector Switch Option.................................................................... 46
AC Wiring Options ............................................................................................................................ 47
PMG Wiring Option........................................................................................................................... 48
DC Wiring ......................................................................................................................................... 49
DC Wiring Options............................................................................................................................ 50
Low Oil Level Wiring Option ............................................................................................................. 51
Battery Charger Wiring Option ......................................................................................................... 51
Engine Heater Wiring Option............................................................................................................ 51
Wiring Block Diagram - Dedicated 12 Lead Generators Option ....................................................... 52
Trailer Lights Wiring.......................................................................................................................... 53
Wiring Harness - Electric Brake Option ............................................................................................ 54
Section 7 - Options & Accessories
Viscous Fan Clutch Option ............................................................................................................... 55
Generator Cam Lock Connections Option........................................................................................ 55
Service Log ............................................................................................................................ 57
vi
SAFETY NOTES
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety
messages that follow this symbol to avoid possible injury or death.
This manual contains DANGERS, WARNINGS, CAUTIONS, NOTICES and NOTES which must be
followed to prevent the possibility of improper service, damage to the equipment, personal injury or death.
The following formatting options will apply when calling the readers attention to the DANGERS, WARNINGS, CAUTIONS, NOTICES and NOTES.
INDICATES A HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, WILL RESULT IN
Indicates a hazardous situation which, if not avoided, could result in death or serious
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
Section 1 - Safety
DANGER
DEATH OR SERIOUS INJURY.
WARNING
injury.
CAUTION
Indicates a hazardous situation which, if not avoided, could result in property or equipment
damage.
Note: Notes contain additional information important to a procedure and will be found within the regular text body
of this manual.
OPERATING SAFETY
Before using the unit, be sure you read and understand all of the instructions. This equipment was
designed for specific applications; DO NOT modify or use this equipment for any application other than
which it was designed for. Equipment operated improperly or by untrained personnel can be dangerous.
Read the operating instructions and familiarize yourself with the location and proper use of all instruments
and controls. Inexperienced operators should receive instruction from someone familiar with the equipment
before being allowed to operate or set up the unit. The following points should be practiced at all times:
• The area immediately surrounding the unit should be dry, clean, and free of debris.
• Position and operate the unit on a firm, level surface.
• DO NOT start a unit in need of repair.
• If the unit is equipped with a frame grounding stud, follow any local, state, and National Electrical
Code (NEC) guidelines when connecting.
• DO NOT operate the unit on a combustible surface.
• DO NOT operate a unit while tired, distracted, or under the influence of drugs or alcohol.
• Keep all body parts, clothing and other loose items away from moving parts.
• DO NOT fill fuel tank near an open flame, while smoking, or while engine is running. DO NOT fill tank
in an enclosed area with poor ventilation.
• DO NOT operate with the fuel tank cap loose or missing.
• Shut the engine down if any of the following conditions exist during operation:
33701 C MMG75D-100D Operating Manual 1
Safety
1. Noticeable change in engine speed.
2. Loss of electrical output.
3. Equipment connected to the unit overheats.
4. Sparking occurs.
5. Engine misfires or there is excessive engine/generator vibration.
6. Protective covers are loose or missing.
7. If the ambient air temperature is above 120°F (49°C).
ENGINE SAFETY
Internal combustion engines present special hazards during operation and fueling. Failure to follow the
safety guidelines described below could result in severe injury or death. Read and follow all safety warnings
described in the engine operator's manual. A copy of this manual was supplied with the unit when it was
shipped from the factory.
• DO NOT run engine indoors or in an area with poor ventilation unless exhaust hoses are used. Engine
exhaust contains carbon monoxide, a deadly, odorless and colorless gas which, if inhaled, can cause
nausea, fainting or death. Make sure engine exhaust cannot seep into closed rooms or ventilation
equipment.
• DO NOT touch or lean against hot exhaust pipes or engine components.
• DO NOT clean air filter with gasoline or other types of low flash point solvents.
• DO NOT operate the unit without a functional exhaust system.
• Prolonged exposure to sound levels in excess of 85 dB(A) can cause permanent hearing loss. Wear
hearing protection when working around a running engine.
• Batteries contain sulfuric acid which can cause severe injury or death. Sulfuric acid can cause eye
damage, burn flesh or eat holes in clothing. Protective eye wear and clothing are necessary when
working on or around the battery. Always disconnect the negative (-) battery cable from the
corresponding terminal before performing any service on the engine or other components.
• DO NOT open the radiator cap or oil drain plug while the engine is running or before the engine has
cooled down. Pressurized coolant and hot engine oil can cause severe burns. Allow the unit to cool
completely before attempting any service work.
• Keep area around exhaust pipes and air ducts free of debris to reduce the chance of an accidental fire.
SERVICE SAFETY
All service work must be performed by qualified personnel who are familiar with the equipment. Only a
qualified electrician should troubleshoot or repair electrical problems occurring in this equipment. Follow the safety guidelines described below to prevent hazardous situations which could result in severe
injury or death.
• NEVER wash the unit with high pressure hoses, power washers, or steam cleaners. Water may collect
in the unit, causing damage to electrical parts.
• ALWAYS use extreme caution when servicing this unit in damp conditions. Do not service the unit if
your skin or clothing is wet. Do not allow water to collect around the base of the unit.
• Replace all missing and hard to read decals. Decals provide important operating instructions and
warn of dangers and hazards.
• Before servicing the unit, verify the Control Power switch and circuit breakers are in the OFF (O)
position, and the negative (-) terminal on the battery is disconnected. DO NOT perform even routine
service (oil/filter changes, cleaning, etc.) unless all electrical components are shut down.
2 MMG75D-100D Operating Manual 33701 C
• DO NOT start the unit under load. The circuit breakers must be in the OFF (O) position when starting
the unit in Manual mode. The circuit breakers can be in the ON (I) position only when started in the
Auto mode. A transfer switch must be used in the Auto mode to deflect the load upon startup.
TOWING SAFETY
Towing a trailer requires care. Both the trailer and vehicle must be in good condition and securely fastened
to each other to reduce the possibility of an accident. Some states require that large trailers be registered
and licensed. Contact your local Department of Transportation office to check on license requirements for
your particular unit.
• Verify the hitch and coupling on the towing vehicle are rated equal to, or greater than, the trailer's
Gross Vehicle Weight Rating (GVWR).
• Check trailer tires for wear and proper inflation.
• DO NOT tow trailer using defective parts. Inspect the hitch and coupling for wear or damage.
• Verify the trailer hitch and the coupling are compatible. Make sure the coupling is securely fastened
to the vehicle.
• Verify directional and brake lights on the trailer are connected and working properly.
• Verify wheel lug nuts are present and tightened to the specified torque.
• Maximum recommended speed for highway towing is 45 mph (72 km/h). Recommended off-road
towing speed is 10 mph (16 km/h) or less, depending on terrain.
Safety
• When towing, maintain extra space between vehicles and avoid soft shoulders, curbs and sudden
lane changes. Practice turning, stopping and backing up in an area away from heavy traffic prior to
transporting the unit.
• Wipe the coupler clean and apply fresh grease each time the trailer is towed to eliminate squeaking.
• Connect safety chains in a crossing pattern under the tongue and ATTACH THE BREAKAWAY
CABLE TO THE REAR BUMPER OF THE TOWING VEHICLE. Do not attach the cable to the trailer
hitch.
• Before towing the trailer, verify that the weight of the trailer is equal across all tires. On trailers with
adjustable height hitches, adjust the angle of the trailer tongue to keep the trailer as level as possible.
On units equipped with a tandem axle trailer, a large angle between the trailer and tow vehicle will
cause more weight to be carried by one axle, which could cause premature wear on the tires and
axles and cause potentially unsafe operating conditions.
• The trailer is equipped with hydraulic or electric surge brakes. Verify proper operation of the brakes
by braking the vehicle at a slow speed before entering traffic. Both the trailer and the vehicle should
brake smoothly. If the trailer seems to be pushing, verify the level in the brake fluid reservoir, if equipped.
REPORTING TRAILER SAFETY DEFECTS
If you believe your trailer has a defect which 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 Generac Mobile Products
LLC.
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 an individual
problem between you, your dealer, or Generac Mobile Products LLC.
To contact NHTSA, you may either call the Auto Safety Hotline toll-free at 1-888-327-4236 (TTY:1-800-424-9153),
go to http://www.safercar.gov; or write to:
Administrator
NHTSA
1200 New Jersey Avenue S.E.
Washington, DC 20590
33701 C MMG75D-100D Operating Manual 3
Safety
You can also obtain other information about motor vehicle safety from http://www.safercar.gov.
SAFETY SYMBOL SUMMARY
The safety and operating decals affixed to the unit provide important instructions and warn of dangers and hazards.
Replace any missing or hard-to-read decals and use care when washing or cleaning the unit. Decal placement and
part numbers can be found in the online parts manual at www.generacmobile.com. Below is a summary of the
intended meanings for the symbols used on the decals.
Safety alert symbol; used to
alert you to potential personal
injury hazards.
Hot surface(s) nearby.
Belt/entanglement hazard; keep
body parts clear of this area.
Fan hazard; keep body parts
clear of this area.
Never change switch position
while engine is running.
Stop engine before making
connections.
Stop engine before fueling.
Asphyxiation hazard; operate
in well ventilated area.
Dangerous voltage may be
present.
Anchor/tie down point.
Isolate generator to prevent
electrocution hazard.
Use clean diesel fuel only.
Remove negative battery
cable before performing
any service on unit.
Read and understand the
supplied operator’s manual
before operating unit.
Hearing protection required
while operating unit with doors
open.
Lift here only.
Engine running.
Exhaust Filter Cleaning enabled.
Figure 1-1. Safety Symbol Summary
4 MMG75D-100D Operating Manual 33701 C
Unit electrical ground.
Fire/explosion hazard; keep
open flames away from unit.
Burn/scald hazard;
pressurized steam.
Exhaust Filter Cleaning disabled.
00383
Section 2 - General Information
SPECIFICATIONS
GENERAC MODEL MMG75D MMG75D Super Start
Engine
Make/Brand............................................................................. John Deere..............................John Deere
Model ......................................................................................PE4045HFG92........................ PE4045HFG92
EPA Tier ..................................................................................4i ............................................. 4i
Horsepower - Prime hp (kW) .................................................97 (72) ..................................... 97 (72)
Horsepower - Standby hp (kW) .............................................107 (80)...................................107 (80)
Operating Speed rpm .............................................................1800 ........................................1800
Displacement in
Cylinders - qty .........................................................................4 ..............................................4
Fuel Consumption - 100% Prime gph (Lph) .........................4.78 (18.1) ...............................4.78 (18.1)
Battery Type - Group Number ................................................. 24 ............................................24
Battery Voltage (quantity per unit)...........................................12V (1) .................................... 12V (1)
Battery Rating .........................................................................720 CCA.................................. 720 CCA
Generator
Make/Brand............................................................................. Marathon Electric ....................Marathon Electric
Model ......................................................................................361PSL1602 ...........................363PSL1607
Type, Insulation....................................................................... Brushless, H ............................ Brushless, H
Generator Set (Engine/Generator)
3Ø - Standby kW (kVA) ..........................................................69 (86) .....................................70 (88)
Amps - 3Ø Standby 480V (208V) A........................................103 (239)................................. 106 (244)
3Ø - Prime kW (kVA) ..............................................................62 (77) ..................................... 63 (79)
Amps - 3Ø Prime 480V (208V) A............................................ 93 (214) ................................... 95 (219)
1Ø - Standby kW (kVA) ..........................................................60 (60) .....................................66 (66)
Amps - 1Ø Standby - 240V A .................................................250 ..........................................275
1Ø - Prime kW (kVA) ..............................................................56 (56) ..................................... 60 (60)
Amps - 1Ø Prime - 240V A .....................................................233 ..........................................250
Frequency Hz.......................................................................... 60 ............................................60
Power Factor........................................................................... 1 (1Ø), 0.8 (3Ø) ....................... 1 (1Ø), 0.8 (3Ø)
Sound dB(A) 23 ft @ prime ...................................................68 ............................................68
3
(L) ..............................................................274 (4.5) .................................. 274 (4.5)
Weights
Dry Weight, Skid Mounted lbs (kg).........................................3530 (1600) .............................3860 (1750)
Operating Weight, Skid Mounted lbs (kg) ..............................4700 (2131) ............................ 5040 (2286)
Dry Weight, Trailer Mounted* lbs (kg) ....................................4240 (1923) ............................. 4570 (2073)
Operating Weight, Trailer Mounted* lbs (kg) .......................... 5410 (2454) .............................5750 (2608)
*Standard trailer only. Consult factory for custom trailer weights.
Capacities
Fuel Tank Volume gal (L)........................................................165 (625) ................................. 165 (625)
Usable Fuel Volume gal (L)....................................................151 (572) ................................. 151 (572)
Coolant (incl. engine) qt (L) ....................................................22.0 (20.8)...............................22.0 (20.8)
Oil (incl. filter) qt (L) ................................................................15.5 (14.7)...............................15.5 (14.7)
Maximum Run Time hrs .........................................................31 ............................................31
AC Distribution
Circuit Breaker Size ................................................................300 ..........................................300
Voltage Selection ....................................................................3 position switch (lockable) .....3 position switch (lockable)
Voltage Regulation..................................................................+/- 0.5%...................................+/- 0.5%
Voltages Available 1Ø .............................................................120, 139, 208, 220, 240, 277 ..120, 139, 208, 220, 240,
Voltages Available 3Ø .............................................................208, 220, 440, 480 ..................208, 220, 440, 480
Trailer
Number of Axles......................................................................1 ..............................................1
Capacity - Axle Rating lbs (kg)............................................... 6000 (2722) ............................. 6000 (2722)
Tire Size in
Brakes.....................................................................................Surge....................................... Surge
Hitch - Standard ......................................................................3'' ring......................................3'' ring
Maximum Tire Pressure psi....................................................65 ...........................................65
..............................................................................15 ............................................15
277
33701 C MMG75D-100D Operating Manual 5
General Information
GENERAC MODEL MMG100D MMG100D Super Start
Engine
Make/Brand............................................................................. John Deere..............................John Deere
Model ......................................................................................PE4045HFG92........................ PE4045HFG92
EPA Tier ..................................................................................4i ............................................. 4i
Horsepower - Prime hp (kW) .................................................121 (90) ................................... 121 (90)
Horsepower - Standby hp (kW) .............................................133 (99)...................................133 (99)
Operating Speed rpm .............................................................1800 ........................................1800
Displacement in
Cylinders - qty .........................................................................4 ..............................................4
Fuel Consumption - 100% Prime gph (Lph) .........................6.2 (23.5) .................................6.2 (23.5)
Battery Type - Group Number ................................................. 24 ............................................24
Battery Voltage (quantity per unit)...........................................12V (1) .................................... 12V (1)
Battery Rating .........................................................................720 CCA.................................. 720 CCA
Generator
Make/Brand............................................................................. Marathon Electric ....................Marathon Electric
Model ......................................................................................362PSL1606 ...........................363PSL1607
Type, Insulation....................................................................... Brushless, H ............................ Brushless, H
Generator Set (Engine/Generator)
3Ø - Standby kW (kVA) ..........................................................86 (107) ...................................88 (110)
Amps - 3Ø Standby 480V (208V) A........................................129 (297)................................. 132 (305)
3Ø - Prime kW (kVA) ..............................................................78 (98) ..................................... 80 (100)
Amps - 3Ø Prime 480V (208V) A............................................ 118 (272) ................................. 120 (278)
1Ø - Standby kW (kVA) ..........................................................75 (75) .....................................78 (78)
Amps - 1Ø Standby - 240V A .................................................313 ..........................................325
1Ø - Prime kW (kVA) ..............................................................71 (71) ..................................... 72 (72)
Amps - 1Ø Prime - 240V A .....................................................296 ..........................................300
Frequency Hz.......................................................................... 60 ............................................60
Power Factor........................................................................... 1 (1Ø), 0.8 (3Ø) ....................... 1 (1Ø), 0.8 (3Ø)
Sound dB(A) 23 ft @ prime ...................................................68 ............................................68
3
(L) ..............................................................275 (4.5) .................................. 275 (4.5)
Weights
Dry Weight, Skid Mounted lbs (kg).........................................3780 (1714) .............................3930 (1782)
Operating Weight, Skid Mounted lbs (kg) ..............................4740 (2150) ............................ 4890 (2218)
Dry Weight, Trailer Mounted* lbs (kg) ....................................4480 (2032) ............................. 4630 (2100)
Operating Weight, Trailer Mounted* lbs (kg) .......................... 5440 (2467) .............................5590 (2535)
*Standard trailer only. Consult factory for custom trailer weights.
Capacities
Fuel Tank Volume gal (L)........................................................165 (625) ................................. 165 (625)
Usable Fuel Volume gal (L)....................................................151 (572) ................................. 151 (572)
Coolant (incl. engine) qt (L) ....................................................22.0 (20.8)...............................22.0 (20.8)
Oil (incl. filter) qt (L) ................................................................15.5 (14.7)...............................15.5 (14.7)
Maximum Run Time hrs .........................................................24 ............................................24
AC Distribution
Circuit Breaker Size ................................................................400 ..........................................400
Voltage Selection ....................................................................3 position switch (lockable) .....3 position switch (lockable)
Voltage Regulation..................................................................+/- 0.5%...................................+/- 0.5%
Voltages Available 1Ø .............................................................120, 139, 208, 220, 240, 277 ..120, 139, 208, 220, 240,
277
Voltages Available 3Ø .............................................................208, 220, 440, 480 ..................208, 220, 440, 480
Trailer
Number of Axles......................................................................1 ..............................................1
Capacity - Axle Rating lbs (kg)............................................... 6000 (2722) ............................. 6000 (2722)
Tire Size in.............................................................................. 15 ............................................15
Brakes.....................................................................................Surge....................................... Surge
Hitch - Standard ......................................................................3'' ring......................................3'' ring
Maximum Tire Pressure psi....................................................65 ...........................................65
Specifications are subject to change without notice.
6 MMG75D-100D Operating Manual 33701 C
Unit Dimensions
General Information
C
A
B
C
A
B
01887
Figure 2-1. Unit Dimensions
A (Width) B (Length) C (Height)
MMG75D/100D - Skid Mounted 40 in. (1.02 m) 119 in. (3.02 m) 62 in. (1.57 m)
MMG75D/100D - Trailer Mounted 69 in. (1.75 m) 170 in. (4.32 m) 80 in. (2.03 m)
Specifications are subject to change without notice.
33701 C MMG75D-100D Operating Manual 7
General Information
UNIT SERIAL NUMBER LOCATIONS
See Figure 2-2 for unit ID tag and Vehicle Identification Number (VIN) tag on the unit. Important information, such
as the unit serial number, model number, VIN and tire loading information are found on these tags. Record the
information from these tags so it is available if the tags are lost or damaged. When ordering parts or requesting
assistance, you may be asked to provide this information.
UNIT ID Tag
Manufactured by Generac Mobile Products LLC.
(920) 361-4442 (800) 926-9768
Model
Country of Origin
Manufacturing Code
Weight (lbs/kg) RPM/Frequency
1 ph. 1.0PF 3 ph. .8PF 3 ph. 1.0PF
KW
KVA
V
A
Located on control panel
Serial Number
Rating
Ins. Class
FOR ELECTRICAL EQUIPMENT
ONLY. POUR MATERIAL
ELECTRIQUE SEULEMENT.
209649
Form: SFC626B
VIN Tag
MANUFACTURED BY/FABRIQUE PAR: GeneracMobile Products LLC DATE: 00/0000
GVWR/PNBV: 000KG (0000LBS) COLD INF. PRESS./
PRESS. DE
GAWR / PNBE TIRE / PNEU RIM / JANTE GONF A FROID - KPA(PSI/LPC) SGL / DUAL
EACH
AXLE
THIS VEHICLE CONFORMS TO ALL APPLICABLE STANDARDS PRESCRIBED UNDER THE U.S. FEDERAL MOTOR VEHICLE SAFETY STANDARDS(FMVSS) AND CANADIAN
MOTOR VEHICLE SAFETY REGULATIONS IN EFFECT ON THE DATE OF MANUFACTURE.
CE VEHICULE EST CONFORME A TOUTES LES NORMES QUI LUI SONT APPLICABLES EN VERTU DU REGLEMENT SUR LA SECURITE DES VEHICULES AUTOMOBILES DU CANADA EN VIGUEUR A LA DATE SA
FABRICATION.
00000000000000000
V.I.N./N.I.V.:
Figure 2-2. Serial Number Locations
MODEL:
TYPE:
TRAILER
XXX000
TIRE AND LOADING INFORMATION
RENSEIGNEMENTS SUR LES
The weight of cargo should never exceed 0000KG (0000LBS)
Le poids du chargement ne doit jamais depasser 0000KG (0000LBS)
PNEUS ET LE CHARGEMENT
SEE OWNER’S
MANUAL FOR
INFORMATION
RENSEIGNEMENTS
ADDITIONAL
VOIR LE
MANUEL DE
L’USAGER
POUR
PLUS DE
02070
8 MMG75D-100D Operating Manual 33701 C
COMPONENT LOCATIONS
General Information
1
13
14
15
2
3
4
5
6
8
9
10
12
11
Figure 2-3. Component Locations
1. Central lift point 9. Oil drain port
2. Voltage selector switch access 10. Fuel fill
3. Generator access 11. Control panel access
4. Manual holder access 12. Emergency stop switch
5. Engine exhaust 13. Handle
6. Front hood latch 14. Radiator access
7. Engine/battery access 15. Engine access
8. Radiator drain port
7
01889
33701 C MMG75D-100D Operating Manual 9
General Information
CONTROL PANEL
14
13
1
2
12
11
10
3
4
5
86
79
01890
Figure 2-4. Control Panel Component Locations
1. Power Zone™ controller 8. Cam lock connections (5)
2. 50A circuit breakers (3) 9. Generator ground connection lug
3. 120V GFCI receptacles (2) 10. Generator output connection lugs (4)
4. 20A circuit breakers (2) 11. Door safety switches (2)
5. Remote start terminal block 12. Diesel exhaust filter cleaning switch
6. Engine accessory connection (2) 13. Auxiliary light switches (optional)
7. 120/240V twist-lock receptacles (3) 14. Main circuit breaker
10 MMG75D-100D Operating Manual 33701 C
General Information
CONTROL
ON
CONTROL
OFF
I
O
CONTROL
ON
CONTROL
OFF
I
O
POWER ZONE™ GEN CONTROLLER
The Power Zone™ controller is an auto start controller that monitors the unit and indicates operational status and
fault conditions. The controller can be programmed to automatically start or stop, based on time schedule, fault
condition, or load demand.
The controller constantly monitors vital generator and engine functions for a number of preprogrammed alarm and
fault conditions. When a fault condition occurs, the engine can be shut down automatically and the LCD window will
show the fault that caused the shut down; to resume operation, the fault condition must be resolved.
This controller also records a history of unit performance which may be viewed at any time and will not be lost when
the controller is powered down.
™
e
C
n
o
o
n
t
r
o
l
l
e
r
STARTING THE GENERATOR
DAS STARTEN DES GENERATORS
COMIENZO DEL GENERADOR
COMMENCEMENT DU GÉNÉRATEUR
1. PRESS CONTROL POWER
SWITCH “ON”
2. PUSH ENGINE START “I”
CONTROL ON
I
CONTROL
ON
1
CONTROL
OFF
2
O
CONTROL OFF
STOPPING THE GENERATOR
DAS AUFHÖREN DES GENERATORS
PARADA DEL GENERADOR
ARRÊT DU GÉNÉRATEUR
1. PUSH ENGINE STOP “O”
2. PRESS CONTROL POWER
SWITCH “OFF”
CONTROL
ON
CONTROL
OFF
11
10
Z
r
e
w
o
P
9
8
7
6
5
4
3
01780
Figure 2-5. Power Zone™ Controller Layout
1. Navigation buttons 7. Alarm mute button
2. Control power switch 8. Voltage Adjust button
3. Engine start button 9. Generator button
4. Engine stop/reset button 10. Engine button
5. Liquid Crystal Display (LCD) 11. Home button
6.
Auto/manual mode button
Controller Features and Functions
Home Button
The Home ( ) button is the default screen of the controller and will display after the controller is powered up and
the unit management software is loaded. It displays a live readout of the kW meter, percent of load used (gauge),
selected phase, volts and amps being produced by the generator, and the fuel level with time until empty. The
controller will automatically return to this screen from any other screen after a period of inactivity.
33701 C MMG75D-100D Operating Manual 11
General Information
Manual Mode
Time to Empty
15 hr
110
100
106.9 kW
GEN
V
-
+
60
50
40
30
20
10
0
90
80
70
%
3 PHASE
Volts
480
Amps
128
Figure 2-6. Home Button Screen
Engine Button
The Engine ( ) button displays the oil pressure, coolant temperature and battery voltage on three main gauges.
Below the gauges is an hour gauge displaying the total run time on the engine. At the bottom of the screen, this
screen also displays maintenance alarm status with the time remaining (black text), or the time past (red text) a
scheduled maintenance task, along with the description of the maintenance procedure and the action that will take
place when the timer trips the alarm.
Full
3/4
1/2
1/4
Empty
74
%
00393
Manual Mode
40 60
20
0
GEN
Oil press. Coolant Temp. Battery
V
-
+
Maintenance
Alarm Hours Description Action
1 174 To Service Oil Maintenance
2 174 To Service Fuel Maintenance
3 174 To Service Air Maintenance
80
100
190 210
170
230
250
°F214PSI50.9
0 0 3 2 5 1 5
Hrs
10
0
20 30
13.8 V
Electrical Trip
Warning
Shutdown
40
50150
00394
Figure 2-7. Engine Button Screen
Note: If the measured value is outside the range of a gauge, the needle will not be displayed. The digital value below
the gauge will still show the measured value.
• Oil Press: Displays engine oil pressure. Current coolant temperature is displayed directly below the gauge
at all times. The gauge registers oil pressure between 0-100 psi (0-689 kPa). Normal operating pressure is
between 35-80 psi (241-552 kPa).
• Coolant Temp: Displays engine coolant temperature. Current coolant temperature is displayed directly
below the gauge at all times. The gauge displays coolant temperature between 150°-250°F (66°-121°C).
Normal operating temperature of the unit is between 180°-200°F (82°-93°C) with an average ambient air
temperature of 70°F (21°C).
• Battery: Displays the engine battery voltage. Current battery voltage is displayed directly below the gauge
at all times. The gauge displays battery voltage between 0-50V. A normal reading is 12-14V on 12 volt
systems and 24-26V on 24 volt systems (with the engine running).
12 MMG75D-100D Operating Manual 33701 C
General Information
V
V
Generator Button
The Generator ( ) button displays the average voltage frequency, volts and amps from the generator, as well as
line-to-line voltage and individual line-to-neutral voltage, amperage and power (kW). This screen also displays the
generator winding configuration set by the voltage selector switch in the lower right corner.
GEN
Manual Mode
GEN
V
-
+
30 40
20
10
0
Volt Volt Amp kW
L1-L2 L1
L2-L3 L2
L3-L1 L3
Freq
0
0
0
50
70 0
IE
60
0
0
0
175
88
0
25
50
0
263
350 0
Parallel Low Zig-Zag
0.0
0.0
0.0
25
13
L1 (U)
38
50
AmpVolt
N
L2 (W)
00395
Figure 2-8. Generator Button Screen
Note: When loading the generator, it is important to observe the amperage to determine the load balance on each
line of the generator. Minor load unbalances, usually ten percent or less, will not cause any particular problems.
Every effort should be made to distribute the load equally between all lines.
• Freq: Displays the output frequency in Hertz (Hz). Normal operating frequency is 60 Hz.
• Volts: Displays the nominal voltage in Volts (V).
• Amps: Displays the AC output amperage produced by the generator in Amps (A).
Additional information can be found on the electric power table at the bottom-left side of the screen. This provides
an overview of all three lines and average voltage and amperage readouts.
Voltage Adjust Button
V
The Voltage Adjust ( ) button displays the line-to-neutral and line-to-line voltage averages. The operator can
-
+
electronically adjust the voltage within limits to prevent under-voltage or over-voltage conditions using the on-screen
instructions. This feature replaces a traditional potentiometer. See Fine Voltage Adjustment for more information.
Manual Mode
Voltage Adjust
- Press , voltage will begin flashing
- Use and arrows to adjust voltage
- Press to confirm new voltage. Numbers will stop flashing
GEN
V
-
+
480
277
L-N Average
L-L Average
00396
Figure 2-9. Voltage Adjust Button Screen
Alarm Mute Button
The Alarm Mute ( ) button silences the audible alarm. Additional action will be required to fully disable the active
alarm.
33701 C MMG75D-100D Operating Manual 13
General Information
Auto/Manual Mode Button
The Auto/Manual Mode ( ) button is used to change the startup and shutdown modes of the unit. When pressed
once, the unit enters Manual mode and when pressed and held for five seconds, the unit enters Auto mode. If in
Auto mode, pressing once will return the unit to Manual mode.
Navigation Buttons
These buttons are used to navigate and interact with the Power Zone™ controller screens. Pressing any directional
arrow (▲, ►, ▼, ◄) while on any of the operator screens will open the maintenance screens, and navigate the tabs
and pages within the maintenance screens. The Enter () button is used to select menus, confirm alarms, and
confirm altered settings.
Control Power Switch
Use this switch to start up and shut down the Power Zone™ controller. This switch should not be turned off when
the unit is running.
Engine Start Button
Pressing the Engine Start (I) button while the controller is in Manual mode will start the unit, provided there are no
shutdown errors and the engine satisfies the start status. If the controller is in Auto mode, the Engine Start (I) button
has no effect.
Engine Stop/Reset Button
Pressing the Engine Stop/Reset (O) button will shut down the unit and put the controller into Stop mode, whether in
Manual mode or Auto mode.
CAUTION
In case of an emergency, always press the emergency stop switch located on the side of
the unit to stop the engine immediately. The Engine Stop/Reset (O) button may delay the
engine shutdown if stop faults exist.
To prevent damage to the generator and connected equipment, remove all loads from the
generator by opening all circuit breakers (turn OFF (O)) before pressing the Engine Stop/
Reset (O) button.
The Liquid Crystal Display (LCD)
This window will display the various operator and maintenance screens. By viewing these screens, the operator will
be able to monitor both the engine and generator status while the unit is running.
Maintenance Screens
All of the data inputs from the engine, generator, inputs/outputs, schedule and Power Zone™ controller are visible
on the maintenance screens.
The information displayed on the maintenance screens can be used to identify, diagnose and troubleshoot unit
shutdown conditions and poor unit performance. The maintenance screens can be accessed from any operator
screen by pressing any directional arrow (▲, ►, ▼, ◄).
The bottom of the screens have a list of available tabs, with the currently displayed tab highlighted in blue. The tabs
can be selected by using the ► or ◄ buttons. To the left of the tabs, the current/available pages are displayed. The
pages within a tab can be viewed by using the ▲ and ▼ buttons. Whenever a new tab is selected, the current page
will always be page one.
14 MMG75D-100D Operating Manual 33701 C
General Information
Generator Summary
The Generator Summary can be found at the top of all maintenance screens and provides an overview of the system.
SITE GENSET
Return Delay 10:00:00
0.0
Hz
kW
kVAr
Figure 2-10. Generator Summary Screen
Engine Tab
The Engine tab contains maintenance and instrumentation data gathered from the engine. Above the engine analogue
meters is a row of alarm icons. Each icon can be one of three colors: gray (inactive), yellow (warning) or red (shutdown).
The alarm icons are as follows from left to right: water in fuel, emission filter, engine air inlet temperature, charge
alternator, oil pressure, fuel level, battery voltage, coolant temperature, and ECU lamp.
Note: The content may change depending upon the selected engine and the features supported by the engine.
SITE GENSET 7741 \ 7740
Return Delay 10:00:00
kW
12 15
15
GEN
V
-
+
9
6
3
0
0
00000 00
Engine Starts
Fuel Used
Fuel Remaining
1/9
RPM
Hrs
US Gal
Litre
kVAr
18
21
24
27
30
33
36
5
46
3
7
2
1
0
Oil press. Coolant Temp.
100
50 150
0
-50
0 °F V
0.0 Hz
8
9
10 -50
200
250
0.0
0.0
0
10
0
480V/277V 3-Phase
To ta l
0.0
0.0
0.0
%
0.00
%
480V/277V 3-Phase
Total Generator
0.0
0.0
0.0
%
0.0
0.00
%
0.0
100
50 150
200
250 0
0 °FPSI
20 30
40
50
0.0 V0.0
kW
kVA
kVAr
kW
kVA
kVAr
pf
30
20
10
10
0
StatusScheduleI/OAlarmsEngine Generator
Energy Generator
0.0
0.0
0.0
07:10
kWh+
0.0
0.0
kVAh
kVArh
0.0
CAN
50
40 60
70
80
90
100
%
00.00
Fuel Level
20 30
40
50
Charge AltBatteryOil Temp
00398
07:10
kWh+
kVAh
kVArhpf
01781
Figure 2-11. Engine Tab Screen
Generator Tab
The Generator tab contains maintenance and instrumentation data gathered from the generator. Each page highlights
different data gathered by the generator, with the analogue meters changing accordingly. The last two pages will
display the information in the bar graph. The bar graph shows blue for positive and red for negative. For the power
factor bar graph, blue is for lagging pf and red is for leading pf.
Note: The content may change depending upon the selected generator and the features supported by the generator.
33701 C MMG75D-100D Operating Manual 15
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