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
5. Maintenance10-2019
73A062J683 (Issue 1) Copyright © 2019 Cummins Inc.
No. Description No. Description
1 Rocker Arm 4 Valve Spring Plate
2
The dimension of the clearance
between the rocker arm and the valve
collet is the valve clearance.
5 Valve Spring
3 Valve Collet 6 Valve
FIGURE 39. VALVE ASSEMBLY
If it is out of specification, adjust the intake valve clearance to the
lower specification limit.
TABLE 12. VALVE CLEARANCE SPECIFICATIONS
Valve Clearance Ambient (mm) Hot (mm)
Intake Valve 0.10–0.15 0.2
Exhaust Valve 0.15–0.20 0.3
12. To adjust the valve clearance:
a. Loosen the locking nut and hold it in place with a spanner wrench.
b. Turn the adjusting nut with a hex wrench to adjust the valve clearance.
c. When the desired valve clearance has been reached, hold the adjusting
nut in place and tighten the locking nut to 14–18 Nm (10.3 –13.3 ft-lb).