OM-2245 / Operation and Maintenance Manual
ITW GSE 4400 / 400 Hz. Generator Set
March 15, 2015
Chapter 2-4
Page 8
Engine Controls (continued)
Trouble, Symptom,
Condition
Probable Cause
Test, Check, and/or Remedy
8.
Engine either goes
from rated speed to
idle speed, or shuts
down.
a.
Low fuel was detected or the
PC1 board could be
defective.
Add No. 2 diesel fuel.
Replace PC1 Interface board.
9.
Engine has slow
response time
when a load is
applied.
a.
Engine needs tune-up.
Tune-up as required. Refer to engine
manufacturer’s operation manual.
10.
Engine misses or
runs unevenly.
a.
Insufficient fuel.
Check fuel system in accordance with engine
manufacturer’s operation manual. Repair or
replace parts as required.
b.
Faulty injector.
Check injectors in accordance with engine
manufacturer’s operation manual.
c.
Low compression pressure.
Check compression in accordance with engine
manufacturer’s operation manual.
d.
Air in fuel system.
Check all fittings to be sure they are tight and
the thread sealant is still present. Tighten the
fittings and add new thread sealant as required.
11.
Engine lacks
power
a.
Improper engine adjustments
and gear train timing.
Tune-up engine in accordance with engine
manufacturer’s operation manual.
b.
Insufficient fuel.
Check low fuel level in accordance with engine
manufacturer’s operation manual. Repair or
replace parts as required.
c.
Insufficient inlet air due to
damaged or dirty air cleaner.
Check air cleaner for plugging and/or damage.
d.
Restricted exhaust system.
Check exhaust pipes for restrictions. Check
muffler for clogged condition. Replace as
required.
12.
Front clearance
lights aren’t ON.
a.
Loose connection
x
Check Interface board connector X9
terminal 3.
x
Check Ground plate connection of wire 79
b.
Defective Interface board.
Replace Interface board.
13.
Rear clearance
lights aren’t ON.
a.
Loose connection
x
Check quick disconnect plug P4
x
Check Interface board connector X9
terminal 4.
x
Check Interface board connector X45 wire
80.
