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
87A062J683 (Issue 1) Copyright © 2019 Cummins Inc.
6 Service
6.1 Control System
The generator set control system continuously monitors the engine and the
alternator. If an abnormal condition is sensed, either the yellow Service lamp or the
red Fault lamp will illuminate and a message will be displayed on the local and
remote displays. In the event of a generator set shutdown fault (red Fault LED), the
control will stop the generator set immediately.
"Establishing Communications" Message
NOTICE
Once the battery is connected to the generator set and any display button is
pressed, the local display shows an "establishing communications"
message for approximately 5 seconds. (This may take longer if the signal
integrity is poor between the control and display due to a bad wire or
Electro-Magnetic Interference [EMI].) Once communication is established,
the display shows the HOME screen.
The “establishing communications” message will also be displayed
whenever the control is brought out of “sleep” mode by pressing any button
on the display. Sleep mode is entered after 30 minutes without utility or
generator set power to preserve battery energy since the battery charger will
not have AC power. The 30-minute timer is reset with any button press on
the display.