TM-9-2320-366-20-2

M1083 SERIES, 5 TON, 6x6, MEDIUM TACTICAL VEHICLES (MTV)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; UNIT MAINTENANCE; VOLUME NO. 2 OF 5

FEBRUARY 2006

CHANGE 3

TM-9-2320-366-20-2 - Page 286 of 1632

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

KNOWN INFO

POSSIBLE PROBLEMS

TEST OPTIONS

Voltage Test or

STE/ICE-R Test #89

REASON FOR QUESTION

1.

Is input voltage present at

junction box terminal board

position 5?

WARNING

Read WARNING

on following page.

START

YES

NO

Go to step 2 of this fault.

Perform Electrical Troubleshooting (e115.

M1084/M1086 Material Handling Crane (MHC)

Overload Shutdown System Stays Activated).

2-1162

Change 2

TM 9-2320-366-20-2

Battery voltage OK.

Circuit breakers OK.

Auxiliary panel cable assembly

OK.

Dashboard wiring harness OK.

Hydraulic system OK.

Faulty crane power cable.

Faulty junction box internal

wiring.

Faulty reverse polarity diode(s).

INITIAL SETUP

Equipment Conditions

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

Personnel Required

(2)

Tools and Special Tools

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

Multimeter, Digital (Item 22, Appendix C)

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

References

TM 9-4910-571-12&P

Crane will not operate if 24

VDC is not present at junction

box terminal board position 5.