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ELECTRICAL INSTALLATION - TM-9-2350-238-20-20056
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TM-9-2350-238-20-2 Crane (CAB) Components Recovery Vehicle Full-Tracked: Light Armored M578 (
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ELECTRICAL INSTALLATION (Cont)
TM
9-2350-238-20-2
Table 2-3. UNIT TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE
ACTION
16.
FILTER BYPASS INDICATOR STAYS ON WHEN LEVEL WIND CIRCUITS ARE
OPERATING NORMALLY.
Check
ground
lead
on
differential
pressure
switch
for
bad
connection.
Clean
ground
connections
with
crocus
cloth
(item
6,
a.
Make sure ground connections are tight.
b.
Troubleshoot  filter  bypass  indicator  circuit,
refer
to
Electrical
Circuit  Symptom  Index,  page  2-19.
17.
LEVEL  WIND  DOES  NOT  TRAVERSE  CAB  WHEN  MASTER
AND
LEVEL
WIND
SWITCHES
ARE  ON  AND  FILTER  BYPASS  INDICATOR  LIGHT  IS  ON.
Check
pressure
relief
valve
ground
for
bad
connection.
a. Clean ground connections with crocus cloth (item 6, appx C).
Make sure ground connections are tight.
b. Troubleshoot level wind circuit, refer to Electrical Circuit
Symptom
Index,
18.
LEVEL
WIND
TRAVERSES
CAB
IN
ONLY
ONE
DIRECTION.
C h e c k solenoid
direction
control
valve
ground
for
bad
connection.
a.
Clean  ground  connections  with  crocus  cloth
(item
6,
Make sure ground connections are tight.
b. Troubleshoot level wind circuit, refer to Electrical Circuit
Symptom
Index,
ONE FLOODLIGHT
IS
OPERATING
WHEN
MASTER
AND
FLOODLIGHTS
SWIT-
19.
ONLY
CHES ARE O N .
Check floodlight
ground
for
bad
connection.
a.
Clean  ground  connections  with  crocus  cloth
(item
6,
Make sure ground connections are tight.
b. Troubleshoot floodlight circuit, refer to Electrical Circuit Symp-
tom
Index,
BOTH
FLOODLIGHTS
ARE
NOT
OPERATING
WHEN
MASTER
AND
FLOODLIGHTS
SWIT-
20.
CHES ARE ON.
Troubleshoot floodlight circuit, refer to Electrical Circuit Symptom

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