M1084/M1086 MATERIAL HANDLING CRANE (MHC) DOES NOT OPERATE

TM 9-2320-366-20-2

e104. M1084/M1086 MATERIAL HANDLING CRANE (MHC) DOES NOT OPERATE

INITIAL SETUP

Equipment Conditions

Tools and Special Tools

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

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

Multimeter, Digital (Item 22, Appendix C)

Personnel Required

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

(2)

References

TM 9-4910-571-12&P

START

WARNING

Read WARNING

TEST OPTIONS

KNOWN INFO

on following page.

Voltage Test or

Battery voltage OK.

STE/ICE-R Test #89

Circuit breakers OK.

REASON FOR QUESTION

Is input voltage present at

Auxiliary panel cable assembly

junction box terminal board

OK.

Crane will not operate if 24

position 5?

Dashboard wiring harness OK.

VDC is not present at junction

Hydraulic system OK.

box terminal board position 5.

POSSIBLE PROBLEMS

Faulty crane power cable.

Faulty junction box internal

wiring.

Faulty reverse polarity diode(s).

YES

Go to step 2 of this fault.

Perform Electrical Troubleshooting (e115.

M1084/M1086 Material Handling Crane (MHC)

Overload Shutdown System Stays Activated).

Change 2