Service Manual
Table Of Contents
- Table of Contents
- 1. IMPORTANT SAFETY INSTRUCTIONS
- 1.1 Warning, Caution, and Note Styles Used in This Manual
- 1.2 General Information
- 1.3 Generator Set Safety Code
- 1.4 Electrical Shocks and Arc Flashes Can Cause Severe Personal Injury or Death
- 1.5 Fuel and Fumes Are Flammable
- 1.6 Exhaust Gases Are Deadly
- 1.7 The Hazards of Carbon Monoxide
- 1.8 Earth Ground Connection
- 2. Introduction
- 3. Startup
- 4. Operation
- 5. Maintenance
- 5.1 Maintenance Safety
- 5.2 Periodic Maintenance
- 5.3 Engine Oil
- 5.4 Engine Valve Clearance
- 5.5 Normal Duty Air Cleaner Element Replacement
- 5.6 Exhaust System Maintenance
- 5.7 DC Electrical System
- 5.8 Batteries
- 5.9 Spark Plugs
- 5.10 Cleaning the Generator Set Housing
- 5.11 Cleaning the Slip Rings
- 5.12 Exercising the Generator Set
- 5.13 Complete System Test
- 6. Service
- 7. Troubleshooting
- 7.1 Troubleshooting Procedures
- 7.2 Safety Considerations
- 7.3 GATRR Troubleshooting Approach
- 7.4 Tools and Parts Required
- 7.5 Troubleshooting with the Local or Remote Displays
- 7.6 Utility-Powered Battery Charger Troubleshooting
- 7.7 Engine Flywheel Battery Charger Troubleshooting
- 7.8 Fuel Shutoff Solenoid Valve
- 7.9 Compression Test Procedure
- 7.10 Connecting with the InPower Service Tool
- 7.11 Troubleshooting by Symptom
- 7.12 Troubleshooting with Fault Codes
- 7.13 Remote Monitoring Communication Troubleshooting
- Appendix A. Wiring Diagrams
2. Introduction 10-2019
14 A062J683 (Issue 1)Copyright © 2019 Cummins Inc.
2.2 Test Equipment
To perform the test procedures in this manual, the following test equipment must be
available:
• True RMS (Root Mean Square) meter for accurate measurement of small AC
and DC voltages
• Grounding wrist strap to prevent circuit board damage due to electrostatic
discharge (ESD)
• Wheatstone bridge or digital ohmmeter
• Load bank
• Megger or insulation resistance meter
2.3 Schedule of Abbreviations
This list is not exhaustive. For example, it does not identify units of measure or
acronyms that appear only in parameters, event/fault names, or part/accessory
names.
Abbr. Description Abbr. Description
AC Alternating Current LED Light-Emitting Diode
AMP AMP, Inc. (part of Tyco
Electronics)
MFM Multifunction Monitor
ANSI American National
Standards Institute
Mil Std Military Standard
ASOV Automatic Shut Off Valve MPU Magnetic Pickup
ASTM American Society for
Testing and Materials
(ASTM International)
NC Normally Closed
ATS Automatic Transfer
Switch
NC Not Connected
AVR Automatic Voltage
Regulator
NFPA National Fire Protection
Agency
AWG American Wire Gauge NO Normally Open
CAN Controlled Area Network NWF Network Failure
CB Circuit Breaker OEM Original Equipment
Manufacturer
CE Conformité Européenne OOR Out Of Range
CCA Cold Cranking Ampere OORH/
ORH
Out Of Range High