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Page Title:
ELECTRIC JOYSTICK CONTROL DOES NOT OPERATE - continued |
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 TM 10-3930-673-20-1
33. ELECTRIC JOYSTICK CONTROL DOES NOT OPERATE (CONT).
6
KNOWN INFO
TEST OPTIONS
Hydraulic system OK.
Continuity test.
Is continuity present between
Auto-leveler OK.
STE/ICE-R #91.
boom connector and
Joystick OK.
REASON FOR QUESTION
Connector J3 OK.
electrical junction box
If continuity is not present, repair
Connector P3 OK.
terminal board connection as
faulty wire and/or connector for
Connector J1 OK.
listed in Table 2-6 for
appropriate function.
Connector P1 OK.
appropriate wire/function?
POSSIBLE PROBLEMS
Connector J4 faulty.
Connector P4 faulty.
Wire 51 faulty.
Wire 52 faulty.
Wire 53 faulty.
Wire 54 faulty.
Repair wire and/or
Wire 55 faulty.
NO
connector
Wire 56 faulty.
(Para 8-50).
Fork leveler mode switch faulty.
Wire 57 faulty.
YES
Wire 58 faulty.
KNOWN INFO
TEST OPTIONS
7
Hydraulic system OK.
Voltage test.
Is voltage present at fork
Auto-leveler OK.
STE/ICE-R #89.
Joystick OK.
leveler mode switch where
REASON FOR QUESTION
Connector J3 OK.
wire 53 or 54 connects?
If voltage is not present, wire 53 or
Connector P3 OK.
54 is faulty.
Connector J1 OK.
Connector P1 OK.
Connector J4 OK.
Connector P4 OK.
Wire 51 OK.
Wire 52 OK.
Wire 53 OK.
Wire 54 OK.
Wire 55 OK.
Wire 56 OK.
Repair wire 53 or
NO
POSSIBLE PROBLEMS
54 (Para 8-50).
Fork leveler mode switch faulty.
Wire 57 faulty.
YES
Wire 58 faulty.
2-498
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