Product Manual A

6. Startup and Configuration PCC 2.3 7-2018

TABLE 23. INITIAL PRE-START CHECKS

Check Description

Generator Set

Grounding

Grounding (earthing) must be checked prior to performing service or

inspection procedures that may expose personnel to conductors normally

energized with voltages greater than 600 Volts. Contact your authorized

Cummins distributor.

Insulation

Testing

This must be performed on all generator sets before initial start-up and after

the generator set grounding procedure has been completed. Insulation

testing for low voltage (less than 600 Volts) generator sets is recommended

by Cummins. These tests are used to verify that the windings are dry before

the generator set is operated, and to develop a base line for future test

comparisons. Contact your authorized Cummins distributor.

Lubrication

Check the engine lubrication oil level and ensure that the correct level is

always maintained.

Coolant

3,4,5

Check the engine coolant level and ensure that the level is always

maintained. Fill the cooling system to the bottom of the fill neck in the

radiator fill or expansion tank. Do not check the level while the engine is hot.

When wire insulation-testing an alternator, failure to protect the voltage regulator, control

and diodes could result in permanent damage to one or more of the electronic components.

Generator sets shipped dry only: They must be filled with the correct type and quantity of oil

before use. Be sure to check the oil level before initial start. Failure to fill to the

recommended level can result in equipment damage.

Generator sets that require a mix of anti-freeze and DCA inhibitor only: You must comply

with Cummins requirements for the correct type and concentration of anti-freeze and DCA

inhibitor. Warranty claims for damage will be rejected if the incorrect mix is used. Consult

your authorized Cummins distributor for the correct anti-freeze specifications and

concentration for your operating conditions.

Radiators with two fill necks only: Both fill necks must be filled after the cooling system has

been drained.

Generator sets shipped dry only: The engine must be filled with the correct type and

quantity of coolant before use. Be sure to check coolant level(s), before the initial start.

Operator’s Pre-Start Checks

WARNING

Arc Flash and Shock Hazard

Electric arc flash can cause electrical shock, severe burns, or death.

Make sure the alternator is dry before the generator set is operated.