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TM 9-2320-364-20-3
2-2600
6. BOOM WILL NOT TELESCOPE IN USING REMOTE CONTROL UNIT.
INITIAL SETUP
1.
Go to Step 2 of this
Fault.
START
NO
Telescope operates using
manual control lever.
At least one other remote
control function operates.
Remote control unit harness
faulty.
Controller switch faulty.
Controller circuit card faulty.
Remote control unit cable faulty.
White wire from truck remote
control connector outlet to
terminal 12 faulty.
White wire from terminal 12 to
solenoid faulty.
Solenoid black wire faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
If component or wire supplying
voltage to solenoid is loose,
faulty or shorted; 22 to 28 vdc
will not be present at solenoid.
2-29. CRANE TROUBLESHOOTING (CONT).
Tools and Special Tools
Tool Kit, General Mechanic’s: Automotive
(Item 74, Appendix G)
STE/ICE-R (optional) (Item 3, Appendix G)
Multimeter (Item 44, Appendix G)
Equipment Condition
Engine OFF, (TM 9-2320-364-10)
Parking brake applied, (TM 9-2320-364-10)
Wheels chocked, (TM 9-2320-364-10)
Remote control unit connected,
(TM 9-2320-364-10)
Crane outriggers down, (TM 9-2320-364-10)
Mast fully erected, (TM 9-2320-364-10)
References
TM 9-2320-364-10
TM 9-4910-571-12&P
Are 22 to
28 vdc
measured at
telescope IN solenoid
harness connector, terminal 1
with crane on and remote
control unit TELESCOPE
lever in the IN position?
Go to Step 8 of this
Fault.
YES
WARNING
Read WARNING
on Page 2-2601
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