TM-9-2350-256-34
RECOVERY VEHICLE, FULL TRACKED: MEDIUM, M88A1
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
JULY 2005
TM-9-2350-256-34 - Page 79 of 584
TM 9-2350-256-34
0007 00
INTERMEDIATE MAINTENANCE
RECOVERY VEHICLE, FULL TRACKED: MEDIUM, M88A1
NSN 2350-00-122-6826, EIC AQA
ELECTRICAL SYSTEM
TROUBLESHOOTING PROCEDURE
INITIAL SETUP:
Tools and Special Tools
Tool kit, general mechanic’s (item 34, WP 0086 00)
References
TM 9-2350-256-20
WP 0076 00
WP 0083 00
Troubleshooting Procedure
Electrical System
Symptom
Electrical system malfunctioning.
Malfunction
Battery-generator indicator reads in yellow or lower red region with main engine running and main generator in
system (generator cutout switch closed).
Do steps 1 and 2.
Battery-generator indicator reads in yellow or lower red region with APU engine running and APU generator
switch on (main engine not running).
Do steps 3 thru 5.
Battery-generator indicator reads in bottom of lower red region (no deflection) with master switch on. Do step 6.
All circuits dead except personnel heater, master relay lamp, and slave receptacle. Do step 7.
Infrared system (driver’s periscope) fails to operate. Do step 8.
CORRECTIVE ACTION
1.
Check for defective switching relay box.
a.
Repair or replace switching relay box.
2.
Check for defective main generator armature relay.
a.
Repair or replace main generator armature relay.
3.
Check for defective APU generator switch.
a.
Replace switch, if defective.
4.
Check for defective hydraulic pressure switch.
a.
Adjust or replace pressure switch (WP 0076 00).
5.
Check for damaged or defective APU generator (WP 0083 00).
a.
Replace defective APU generator (WP 0083 00).
6.
Check for defective master relay.
a.
Repair or replace master relay.
7.
Check main power bus.
a.
Repair or replace defective components.
0007 00-1
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