TM 5-3610-253-14
Table 5-23. DIRECT/GENERAL SUPPORT TROUBLESHOOTING - Cont
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
8.
ERROR MESSAGE 88 OR 92 - Cont
Check safety bolt proximity switches.
Step 2.
(a) Perform safety bolt proximity switches test and replace
defective parts (paragraph 5-40.3).
(b) If problem is not corrected, proceed to step 3.
Step 3.
Perform safety bolt test.
(a) Perform test of safety bolt and replace defective parts
(b) If problem is not corrected, proceed to step 4.
Step 4.
Replace circuit board IAR (paragraph 5-40.28).
If malfunction persists, refer to electrical and electronic
schematics for fault isolation.
9.
ERROR MESSAGE 89 OR 90.
(89) The normally open contact of one cutting button is in closed
position when control voltage is turned on.
(90) The normally closed contact of one cutting button is not in
the closed position.
Check cutting buttons.
(a) Perform cutting buttons test and replace defective parts
(b) If malfunction persists, refer to electrical and electronic
schematics for fault isolation.
