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
Wiring Diagrams
50 MMG25I-35D-45I-55DF4 Operating Manual 36949 B
AC WIRING - 4 POS. VOLTAGE SELECTOR SWITCH OPTION - MMG35DF4, MMG55DF4
TO
GND
BAR
GN/YL
GN/YL
GN/YL
GN/YL
WT
WT
WT
MAIN
CIRCUIT
BREAKER
TO
GND
BAR
GROUND
TO
FRAME
GENERATOR
F+
F-
BN/WT4
BN/WT4
BN3
BN3
(4) JUMPER
WIRES ON PHASE
SWITCH 11-19, 13-21,
23-38, 27-33
GROUND
STUD
GROUND BAR
TO
LED LEDLED
LED
TO
GND
BAR
TO
GND
BAR
TO
GND
BAR
TO
GND
BAR
BN/WT3
BN2
TO
GND
BAR
GND
BAR
GND
TO
(T7)
CT-3
L2
L3
SHUNT
L1
CT-2CT-1
L0
MECHANICAL LUGS
12VDC
(T9)
GND
(L0)
BLK
BLK
BLK
BLK
BLK
BLK
BLK
34
3329
30
36
35
32
31
37
38
39
40
5913
61014
7
8
11
12
15
16
1
2
3
4
2
7
81
46 53
RD1
GN/YL
BN/WT
BL
RD
VOLT REGULATION
RELAY
17 21 25
18 22 26
19
20
23
24
27
28
RD/BK
BK
BLK
TP0
BK
RD
BK
RD
2
1
WT
YL
L3
L2
L1
REMOVE JUMPERS FOR 4 POSITION PHASE SWITCH
12
3
10
7
6
5
4
G
BN2
BN/WT3
12
4
3
RD1
RD/BK
G
11
8
12
9
BK/WT
LUG
DOOR
CNO
(HELD
CLOSED
NORMALLY)
OR/WT1
PANEL/INTERIOR
LIGHT
RD
BK
RD
BL
WT
YL
PAN EL
LIGHT
LUG
LIGHT1
LUG
LIGHT2
INTERIOR
LIGHT2
OR/WT3
BL/YL
1
234567
TB2
OR/WT3
BL/YL
BK/WT
BK
WT
BL/YL BL/YL
BK/WT
BK/WT
BK
WT
BK
WT
WT
BN
SWITCH
TB3
2
1
REMOTE
START
CONTACT
BK/WT
GY/OR
BL/YL
GN/YL
13
18
19
16
17
12
23
24
4
8
2
15
14
11
20
7
5
1
3
22
6
24 PIN
CONN 20
10
21
9
BN/WT1
BN1
OR/WT1
GY/OR
OR/WT2
BN/WT2
BN
BK
GN/YL
YL/WT
OR/WT
BN/WT
BL/YL
90633_ORG_01.20.15