Product Manual
Table Of Contents
- Section 1: Introduction and Safety
- Section 2: General Information
- Section 3: Operation
- Pre-start Checklist
- Manually Starting the Unit
- AUTO (Remote) Starting the Unit
- Wet Stacking
- Cold Weather Operation
- Using a Booster Battery or Charger (if equipped)
- Generator Output Connections
- Generator Cam Lock Connections (If Equipped)
- Using the Voltage Selector Switch
- Fine Voltage Adjustment
- Voltage Regulator
- Achieving 240V Three-Phase in 208V Three-Phase (Parallel Low Wye) Configuration
- Customer Convenience Receptacles
- Main Circuit Breaker
- Transfer Switch
- AUTO Exercise Timer
- Shutting Down the Unit
- Emergency Stop Switch
- Idle Switch
- Using the ECU Override Switch
- Towing the Unit
- Lifting the Unit
- Section 4: Maintenance
- Section 5: Troubleshooting
- Section 6: Wiring Diagrams and Service Log
- Wiring Diagram - 3 Position AC Box
- Wiring Diagram - 4 Position AC Box
- Wiring Diagram - Receptacles
- Wiring Diagram - Engine Heater
- Wiring Diagram - Wiring Buck (If Equipped)
- Wiring Diagram - Power Zone PMG
- Wiring Diagram - Power Zone Control Box
- Wiring Diagram - Trailer Lights
- Wiring Diagram - Brake Wiring
- Wiring Diagram - 12V Battery Charger
- Wiring Diagram - Power Zone Low Oil Level (If Equipped)
- Service Log
6 Owner’s Manual for MDG25IF4
Introduction and Safety
Safety and Operating Decals
This unit features numerous safety and operating decals.
These decals provide important operating instructions and
warn of dangers and hazards. The following diagrams
illustrate decal locations and descriptions.
Replace any missing or hard-to-read decals and use care
when washing or cleaning the unit. Decal part numbers
can be found in the parts manual at
www.generacmobileproducts.com.
Table 1-1. Decal Descriptions
ID Description
1 Lifting Point
2 Tie-Down Location
3 Coolant Drain
4 Engine Oil Drain
5 Ultra Low Sulfur Fuel Only
6 Diesel Fuel
7 Towing Instructions
8 Hot Coolant Under Pressure, Hot Surface
9 Do not Open Door with Engine Running
10 Open Upper Door First
11 Electric Shock Hazard
12 Warning
13 Moving Parts
14 Secondary Filter
15 Primary Filter
16 Battery Disconnect
17 Electrical Ground
18 Ground Output Connection
19 Starting and Stopping the Generator
20 Do not Open Door with Engine Running
21 Terminal Connections (Voltage Selector Switch)
22 CAN Lock Connectors
23 Connection Terminal Lugs
24 Remote Start Terminal Connections
25 Circuit Breaker
26 Electrical Backfeed Danger
27 Operating Instructions
28 Read and Understand Owner’s Manual
29 Buttons Below Controller
30 Neutral
31 Neutral Bonded to Frame