M1084/M1086 MATERIAL HANDLING CRANE (MHC) HOIST DOWN DOES NOT OPERATE FROM REMOTE STATION

TM 9-2320-366-20-2

e107. M1084/M1086 MATERIAL HANDLING CRANE (MHC) HOIST DOWN DOES NOT

OPERATE FROM REMOTE STATION

INITIAL SETUP

Equipment Conditions

Tools and Special Tools

Outriggers lowered (TM 9-2320-366-10-1).

Tool Kit, Genl Mech (Item 46, Appendix C)

Crane erected with approximately five feet

Multimeter, Digital (Item 22, Appendix C)

of cable payed out (TM 9-2320-366-10-1).

STE/ICE-R (Item 41, Appendix C)

Engine shut down (TM 9-2320-366-10-1).

References

Personnel Required

TM 9-4910-571-12&P

(2)

START

WARNING

KNOWN INFO

TEST OPTIONS

Read WARNING

Other crane functions from

Voltage Test or

on following page.

remote station OK.

STE/ICE-R Test #89

Is 24 vdc present at

POSSIBLE PROBLEMS

REASON FOR QUESTION

junction box assembly

Faulty hoist down solenoid

This question eliminates

terminal board position 24?

cable.

possible problems and

Faulty hoist down

determines where to

solenoid.

continue troubleshooting.

Faulty HOIST UP/DOWN

controller.

Faulty remote control

box internal wiring

harness.

Faulty external remote

control cable.

Faulty remote control

Go to step 3 of this fault.

cable.

YES

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