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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).
6
KNOWN INFO
TEST OPTIONS
Joystick moves forks.
Voltage Test
Is voltage present on wire 57
Light OK.
STE/ICE-R #89.
and 58 where wire 57 and
Wire 50 OK.
REASON FOR QUESTION
Auto-level light socket OK.
wire 58 connects to auto-level
If voltage is present, auto-level
Wire 59 OK.
switch?
switch is faulty.
POSSIBLE PROBLEMS
Auto-level switch faulty.
Connector J1 faulty.
Connector P1 faulty.
Connector J4 faulty.
Connector P4 faulty.
Auto-level circuit card faulty.
Auto-level sensor faulty.
Wire 2 faulty.
Replace auto-level
NO
switch (Para 8-20).
YES
KNOWN INFO
TEST OPTIONS
7
Joystick moves forks.
Visual Inspection
Is red light illuminated on
Light OK.
STE/ICE-R.
Wire 50 OK.
auto-level circuit card when
REASON FOR QUESTION
Auto-level light socket OK.
engine start switch is ON?
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 8 of this
NO
fault.
YES
Go to Step 10 of
this fault.
2-474
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