Table of Contents
Advertisement
OM-2032 / Operation and Maintenance Manual
100D20 / Generator Sets
Engine and Controls
Trouble, Symptom & Condition
1. Engine will not start. Starter
will not crank engine.
2. Engine will not start. Cranking
speed low.
March 28/94 Revised
Probable Cause
a. Battery or batteries
discharged or faulty.
b. 12-V DC power not
reaching starter solenoid.
c. Batteries or starter not
properly grounded.
d. Defective start switch
(S24).
e. Internal seizure
a. Low battery output or
faulty starter.
b. Loose starting circuit
connections or faulty
cables.
c. Improper lubricating oil
viscosity.
d. Ambient temperature too
low for normal starting
pricedures.
Corrective Action
Check battery voltage and specific
gravity. Recharge or replace.
Check voltage at starter solenoid
input terminal (4, Fig. 2). Voltage
should be approximately 13.5 V.
If no
voltage, check
cables and connections between
starter solenoid and power
source. Replace or repair cables
and connectors as required.
Check cable and all connections.
While operating start switch (27,
Fig. 1), Measure voltage at
terminal where brown-blue wire
connects to starter solenoid. If
no voltage is indicated, replace
switch.
If all engine starting compo-
nents are good and the starter is
unable to crank the engine,
internal seizure is indicated.
Attempt to hand-crank the
engine, using a socket wrench
with long flex handle on the crank
shaft pulley screw. If the engine
cannot be turned a complete
revolution, remove engine and
disassemble to find damage and
cause.
Check battery and starter.
Recharge, repair, or replace.
Check all connections and
cables. Tighten or replace as
required.
Check oil. See Sect. 2-1, Para. 3,
D, (3). Take corrective action as
necessary.
Use engine starting aid. See
Sect. 1-3, Para. 2, C.
Chapter 3-1
Page 13
Advertisement
Table of Contents
