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 243 of 948

TM 9-2350-256-20-1

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Troubleshooting Procedure

Power Control Lever Switch

Symptom

Power control lever switch malfunctioning.

Malfunction

Engine exceeds 1800 rpm when hydraulic POWER lever is ON. Do steps 1 thru 9.

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 three screws (1), three lockwashers (2), ground lead (3), flat washer (4), and release main

switch panel (5) from mounting brackets. Disconnect switch panel to gage panel and miscellaneous

switches wiring harness from switch panel. Place red lead of multimeter on pin N of wire 10 and black

lead to ground. Turn MASTER switch on and check for voltage. Turn MASTER switch OFF. If voltage

is present, go to step 3. If voltage is not present, go to step 2.

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