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
7. Troubleshooting10-2019
165A062J683 (Issue 1) Copyright © 2019 Cummins Inc.
Diagnosis & Solution:
1. Check the last fault recorded.
• If this fault has not been repaired, troubleshoot that fault.
2. Replace the control.
Code 36 - Generator Set Stopped Without Fault Condition
Logic: RPM is less than 500 and sense voltage S1-S2 is at 0 VAC and no other
fault condition occurred
Possible Causes:
• Fuel supply
• Air fuel mixture
• Exhaust system
• Demand regulator
• Throttle plate
• Alternator windings
• Ignition
• Wire connections
Diagnosis & Repair:
1. Check the last fault recorded.
• If this fault has not been repaired, troubleshoot that fault.
2. Verify the engine rotation manually.
• Repair engine damage as necessary.
3. Verify the alternator rotation manually.
• Repair alternator damage as necessary.
4. Disconnect the generator set control J1 connector.
5. Verify the J1 pins are fully inserted, and inspect pin condition using one of the
devices below:
• A mating pin connector
• A pin gauge of the same size as the mating control connector pin (0.045 in)
• Any suitable device that will not damage the inside contact wipers of the
pin socket
Insert, repair, or replace pins as necessary.
6. Inspect the condition of the P1 pin on the control board. If it is damaged or
severely corroded, clean or repair if possible, or replace the control board.
7. When reconnecting the harness plug to the connector, ensure that the pair are
fully seated next to each other.