TM-5-2350-377-14-P
ARMORED COMBAT EARTHMOVER (ACE), M9
TECHNICAL MANUAL; OPERATOR'S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST) SUPPORTING THE HYDRAULIC BLADE FOLDER-TRACK TENSIONER (HBF-TT)
TM-5-2350-377-14-P - Page 61 of 335
TM 5-2350-377-14&P
0008 00
0008 00-20
Step 3. Check control wiring harness circuit 450 for a minimum of 24 VDC at circuit 450.
Disconnect control wiring harness connector (7) behind panel.
Connect negative lead of VOM to socket
E (2) of control box power wiring harness (4) and connect positive lead to connector (7).
Turn on master
switch.
If no voltage is present at connector (7), turn master switch off, reconnect connector (7) to control
box power wiring harness (4), go to step 4.
If minimum 24 VDC is present, turn master switch off, replace control box power wiring harness (4),
verifyproblem is solved.
Step 4. Check control wiring harness for a minimum of 24 VDC at circuit 450.
Refer to vehicle electrical system wiring diagram (FO
- 1
) and control wiring harness (FO
- 2 & FO - 3
)
and
troubleshoot
ing
circuit 450.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2
TRACK (LEFT OR RIGHT) WILL NOT TIGHTEN OR LOOSEN, HBF-TT SYSTEM (ELECTRICAL) -
continued
6
2
7
4
3
5
(HIDDEN)
1
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