Product Manual
Table Of Contents
- Table of Contents
- Safety
- General Information
- Specifications
- Unit Serial Number Locations
- Component Locations
- Control Panel
- Power Zone™ Gen Controller
- Controller Features and Functions
- Operator Screens
- Alarm Mute
- Auto/Manual Mode
- Navigation Buttons
- Control Power Switch
- Engine Start
- Engine Stop/Reset
- The Liquid Crystal Display (LCD)
- Operator Screens
- Home Screen
- Engine Screen
- Generator Screen
- Voltage Adjust Screen
- Maintenance Screens
- Generator Summary
- Engine Tab
- Generator Tab
- Alarms Tab
- Input/Output Tab
- Schedule Tab
- Status Tab
- Generator Monitoring
- Engine Monitoring
- Controller Information Displays, Functions and Reset
- Belt Tensioners
- Operation
- Prestart Checklist
- Manual Starting of the Unit
- Auto (Remote) Starting of the Unit
- Derating for Altitude
- Generator Output Connection Lugs
- Fine Voltage Adjustment
- Voltage Selector Switch
- Voltage Regulation
- Customer Convenience Receptacles
- Main Circuit Breaker
- Exhaust Filter Cleaning Operations
- Transfer Switch
- Auto Exercise Timer
- Shutting Down the Unit
- Emergency Stop Switch
- Idle Switch (MMG25I-45I only)
- Towing the Unit
- Lifting the Unit
- Maintenance
- Emissions Information
- Daily Walk Around Inspection
- General Maintenance
- Basic Maintenance Schedule - Isuzu Engine
- Basic Maintenance Schedule - John Deere Engine
- Isuzu Engine Break-In Requirements
- John Deere Engine Break-In Requirements
- Resetting the Maintenance Alarms
- Checking Generator Drive Plate Torque
- Jack Maintenance
- Trailer Wheel Bearings
- Troubleshooting
- Wiring Diagrams
- AC Wiring - MMG25IF4, MMG45IF4
- AC Wiring - MMG35DF4, MMG55DF4
- AC Wiring - 4 Pos. Voltage Selector Switch Option - MMG25IF4, MMG45IF4
- AC Wiring - 4 Pos. Voltage Selector Switch Option - MMG35DF4, MMG55DF4
- AC Wiring Option - Standard Receptacles
- AC Wiring Option - Engine Heater
- AC Wiring Option - Buck Transformer
- AC Wiring Option - PMG
- DC Wiring
- Trailer Lights Wiring
- Wiring Harness - Electric Brake Option
- DC Wiring Option - 12V Battery Charger
- DC Wiring Option - Low Oil Level
- Options & Accessories
36949 B MMG25I-35D-45I-55DF4 Operating Manual 5
Section 2 - General Information
SPECIFICATIONS
GENERAC MODEL MMG25IF4
Engine
Make/Brand........................................................................................................................... Isuzu
Model .................................................................................................................................... 4LE2TAGV-03
EPA Tier ................................................................................................................................ F4
Horsepower - prime hp (kW) ............................................................................................... 36.2 (27.0)
Horsepower - standby hp (kW) ............................................................................................ 40.2 (30.0)
Operating Speed rpm .......................................................................................................... 1800
Displacement in
3
(L) ............................................................................................................. 133 (2.18)
Cylinders - qty ....................................................................................................................... 4
Fuel Consumption - 100% prime gph (Lph) ........................................................................ 2.1 (7.8)
Battery Type .......................................................................................................................... 24
Battery Voltage (Quantity per Unit) ....................................................................................... 12V (1)
Battery Rating ....................................................................................................................... 720 CCA
Generator
Make/Brand........................................................................................................................... Marathon Electric
Model .................................................................................................................................... 283PSL1707
Type, Insulation ..................................................................................................................... Brushless, H
Generator Set (Engine/Generator)
3Ø - Standby kW (kVA) ....................................................................................................... 26 (32)
Amps - 3Ø Standby 480V (208V) A ..................................................................................... 38 (89)
3Ø - Prime kW (kVA) ........................................................................................................... 23 (29)
Amps - 3Ø Prime 480V (208V) A ......................................................................................... 35 (80)
1Ø - Standby kW (kVA) ....................................................................................................... 24 (24)
Amps - 1Ø Standby - 240V A .............................................................................................. 100
1Ø - Prime kW (kVA) ........................................................................................................... 22 (22)
Amps - 1Ø Prime - 240V A .................................................................................................. 92
Frequency Hz ....................................................................................................................... 60
Power Factor......................................................................................................................... 1 (1Ø), 0.8 (3Ø)
Sound dB(A) 23 ft @ prime ................................................................................................. 66
Weights
Dry Weight, Skid Mounted lbs (kg) ...................................................................................... 2430 (1102)
Operating Weight, Skid Mounted lbs (kg) ........................................................................... 3160 (1433)
Dry Weight, Trailer Mounted* lbs (kg) ................................................................................. 2950 (1338)
Operating Weight, Trailer Mounted* lbs (kg) ....................................................................... 3680 (1669)
*Standard trailer only. Consult factory for custom trailer weights.
Capacities
Fuel Tank Volume gal (L) ..................................................................................................... 100 (379)
Usable Fuel Volume gal (L) ................................................................................................. 90 (341)
Coolant (incl. engine) qt (L) ................................................................................................. 18 (17)
Oil (incl. filter) qt (L) ............................................................................................................. 11 (10.4)
Maximum Run Time hrs ...................................................................................................... 42.9
AC Distribution
Circuit Breaker Size .............................................................................................................. 125
Voltage Selection .................................................................................................................. 3 position switch (lockable)
Voltage Regulation ................................................................................................................ +/- 0.5%
Voltages Available 1Ø ........................................................................................................... 120, 139, 208, 220, 240, 277
Voltages Available 3Ø ........................................................................................................... 208, 220, 440, 480
Trailer
Number of Axles.................................................................................................................... 1
Capacity - Axle Rating lbs (kg) ............................................................................................ 5000 (2268)
Tire Size
in ........................................................................................................................... 15
Brakes................................................................................................................................... Surge
Hitch - Standard .................................................................................................................... 2'' ball
Maximum Tire Pressure psi ................................................................................................. 65
Specifications are subject to change without notice.