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. Troubleshooting 10-2019
136 A062J683 (Issue 1)Copyright © 2019 Cummins Inc.
TABLE 19. TROUBLESHOOTING
Problem Possible Causes Action
No Charger Output
and Low Battery
No AC power Check the supply breaker.
Blown fuse
Replace the fuse. Fuse
specification: 5 x 20 mm, time lag
(time delay)
glass body cartridge fuse rating 5
A, 250 VAC.
See the figure below for the fuse
location.
Charger failure (see the charge
curve)
Check the LEDs and wiring;
replace the charger if required.
Low Battery
Voltage (Less
Than 13.2 VDC)
Current is less than 2 Amps
Replace the charger.
Charging LED is not on when
expected
Total DC loads are greater than 4
Amps
Reduce DC loads below 4 Amps.
Recent utility outage
Replace the battery if the voltage is
not increasing with positive charge
current.
Failed generator set flywheel
charger
High Battery
Voltage (Greater
than 15 VDC)
Charger failure
Determine if the overcharge is from
the utility-powered charger or from
the generator set 9 Amp flywheel
battery charger. Replace the
appropriate battery charger.
FIGURE 68. FUSE LOCATION