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Page Title:
CHART - 10 - VARIABLE SPEED GOVERNOR (VSG OR CRANE HIGH IDLE) INOPERATIVE (Cont'd) |
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 TM 9-2320-364-20-1
Section IV. TROUBLESHOOTING CHARTS (Cont.)
D. CHART - 10 - VARIABLE SPEED GOVERNOR (VSG OR CRANE HIGH IDLE) INOPERATIVE (Cont'd)
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STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
C 10-11
Check for Short
Between Signal and
Ground
Remove jumper wire.
Both readings
Go to C 10-12.
Read resistance between sockets
are greater than
D1 (#510) and C3 (#952) on vehicle
10,000 ohms or open.
harness connector.
Also read resistance between
Either reading is
Signal line (ckt #525 or
socket D1 (#510) and a good
less than equal
#510) or Neutral start circuit
ground.
to 10,000 ohms.
is shorted to ground (either
ckt #952 or chassis ground).
Repair short. Then go to C 10-30.
C 10-12
Check for Short
Between +5 Volt
Line and Ground
Disconnect vernier
Both readings
Go to C 10-13.
control connector (para 7-95).
are greater than
Read resistance between sockets
10,000 ohms or open.
A3 (#916) and C3 (#952) on
vehicle harness connector.
Also read resistance between
Either reading is
The +5 volt line (ckt #916) is
socket A3 (#916) and a good
less than or equal
shorted to ground (either ckt
ground.
to 10,000 ohms.
#952 or chassis ground). Repair
short. Then to to C 10-30.
C 10-13
Check Vernier
Control Connectors
Inspect terminals at vernier control
Terminals and
Replace vernier control
connectors (sensor side and
connectors are okay.
(para 7-100). Then go to C 10-30.
harness side) for damaged; bent,
corroded, and unseated pins or
Problem found.
Repair terminals/connectors
sockets.
(para 7-101). Then go to C 10-30.
2-613
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