TM-9-2350-256-20-1

RECOVERY VEHICLE, FULL TRACKED: MEDIUM, M88A1

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL VOLUME 1 OF 2

NOVEMBER 2005

TM-9-2350-256-20-1 - Page 558 of 948

TM 9-2350-256-20-1

0087 00

Troubleshooting Procedure

Engine Generator Blower Motor

Symptom

Engine generator blower malfunctioning.

Malfunction

Engine generator blower motor fails to operate when engine is running. Do steps 1 and 2.

CORRECTIVE ACTION

WARNING

Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry contacts a metal surface a direct

short may result in instant heating of tools, damage to equipment, and injury or death to personnel.

1.

Remove powerplant and connect groundhop kit (see WP 0098 00 and 0099 00). Disconnect engine

wiring harness from engine blower motor. Place red lead of multimeter in socket A of wire 415 and

black lead to ground. Turn MASTER switch on, start engine, and check for voltage. Turn engine and

MASTER switch OFF. If voltage is present, go to step 2. If voltage is not present, repair/replace wire

415 of engine wiring harness from blower plug to generator armature terminal (see WP 0207 00 for

dual voltage; 0208 00 for single voltage).

2.

Place red lead of multimeter in socket B of GND wire and black lead to GND. Check for continuity.

If continuity is present, repair/replace engine generator blower motor (see WP 0150 00). If continuity

is not present, repair/replace ground wire of engine wiring harness (see WP 0207 00 for dual voltage;

0208 00 for single voltage).

END OF WORK PACKAGE

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