Product Manual B
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 Moving Parts Can Cause Severe Personal Injury or Death
- 1.5 Electrical Shocks and Arc Flashes Can Cause Severe Personal Injury or Death
- 1.6 Fuel and Fumes Are Flammable
- 1.7 Batteries Can Explode
- 1.8 Exhaust Gases Are Deadly
- 1.9 The Hazards of Carbon Monoxide
- 1.10 Earth Ground Connection
- 2. Introduction
- 3. Control System
- 4. Operation
- 5. Maintenance
- 6. Troubleshooting

5. Maintenance 7-2018
90 A045R242 (Issue 12)Copyright © 2018 Cummins Inc.
3. Return the generator set control to the desired setting when finished performing
maintenance.
5.9 Cleaning the Generator Set Housing
The housing of the generator set housing can be damaged by pressure washing or
solvents and other cleaning agents. Only use soap and water or an “all citrus
degreaser" to clean the housing.
5.10 Complete System Test
NOTICE
Only authorized and qualified maintenance technicians who are familiar with
the equipment and its operation should carry out this test.
A complete system test is recommended to verify that the electrical system is
working properly. Testing the system once every 200 hours or every 2 years is
required to make sure the transfer switch will transfer the load to the generator set if
there is a utility power failure. For more information, see the transfer switch owner
manual.
To initiate a complete system test:
1. Before starting:
• Check the oil level.
• Make sure there is enough fuel.
• See the Checklist section in the installation manual.
2. Place the generator set in Standby mode.
3. Switch the main utility disconnect from the ON to the OFF position.
4. Make sure the following occurs:
a. The generator set starts.
b. After the generator set starts and stabilizes, the load is transferred from the
utility to the generator set.
5. Switch the main utility disconnect from the OFF to the ON position.
6. Make sure the following occurs:
a. After approximately 5 minutes, the load is transferred back to the utility.
b. Once the transfer switch is connected to utility power, after approximately 5
minutes, the generator set stops.
NOTICE
If the test fails, call your authorized Cummins service provider to fix the
problem.