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Page Title:
FORK AUTO-LEVELER DOES NOT OPERATE - continued |
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 TM 10-3930-673-20-1
32. FORK AUTO-LEVELER DOES NOT OPERATE (CONT).
8
KNOWN INFO
TEST OPTIONS
Joystick moves forks.
Voltage Test.
Is voltage present on wire 50
Light OK.
STE/ICE-R #89.
where wire 50 connects to
Wire 50 OK.
REASON FOR QUESTION
Auto-level light socket OK.
auto-level circuit card?
This question eliminates possible
Wire 59 OK.
problems and determines where
Auto-level switch OK.
troubleshooting continues.
POSSIBLE PROBLEMS
Connector J1 faulty.
Connector P1 faulty.
Connector J4 faulty.
Connector P4 faulty.
Auto-level circuit card faulty.
Auto-level sensor faulty.
Wire 2 faulty.
Go to Step 15 of
NO
this fault.
YES
KNOWN INFO
TEST OPTIONS
9
Joystick moves forks.
Voltage Test.
Is voltage present on wire 64
Light OK.
STE/ICE-R #89.
Wire 50 OK.
where wire 64 connects to
REASON FOR QUESTION
Auto-level light socket OK.
auto-level circuit card?
If voltage is not present, auto-level
Wire 59 OK.
circuit card faulty.
Auto-level switch OK.
Connector J1 OK.
Connector P1 OK.
Connector J4 OK.
Connector P4 OK.
POSSIBLE PROBLEMS
Auto-level circuit card faulty.
Auto-level sensor faulty.
Wire 2 faulty.
Replace auto-level
NO
circuit card
(Para 8-19).
YES
2-476
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