OM-2245 / Operation and Maintenance Manual
ITW GSE 4400 / 400 Hz. Generator Set
March 15, 2015
Chapter 2-3
Page 1
Section 3
Adjustment/Test
1) General
These adjustments and test procedures are applicable to testing and adjusting the generator set after
major repair, major parts replacements, or overhaul.
IMPORTANT
In order to perform most of the following test, a load bank with an EF interlock circuit
is required. However, if no EF interlock is available on a load bank, see special
procedure in the EF Bypass section (Chapter 1-3 paragraph 4.4) for disabling the EF
circuit.
2) Testing the 400 Hz Generator Set
a) Pre-operational
Test
Procedures
1) Check engine oil level. Oil should be at high bar on the dipstick.
2) Check radiator coolant level, if not full then fill with appropriate climate mix of ethylene glycol and
water. Total capacity is 20 quarts.
3) Check
tension
of drive belt.
4) Verify that there is at least ¼ tank of diesel fuel.
5) Make a general inspection of all wiring, and terminals. Inspect the equipment to be certain no
damage will result from starting the engine.
6) Turn on battery disconnect switch.
7) Place
unit
in ‘Engine Only’ Diagnostic Mode. (See Menu Operating Instructions,
Chapter 1-3
Paragraph 4.19) Return to home screen to view status. (Screen will display Generator
Diagnostics.)
b) Engine Test Procedures
1) Press engine button to start engine. Engine should start and run at idle speed, 1000 RPM (±5).
2) Check for coolant, fuel and oil leaks. Listen for air leaks and other engine issues.
3) Verify display voltage is over 27 VDC. (Battery is charging.)
a. Voltage
___________VDC
4) Press Output button (any Output) to make engine go to rated speed, 2000 RPM (±5). (Output will
not function.)
5) Check for coolant, fuel and oil leaks. Listen for air leaks and other engine issues.
6) Press engine button to shut down unit.
