M1089 STINGER/TELESCOPIC LIFT CYLINDERS/FOLDING CYLINDERS/RIGHT 30K WINCH DO NOT OPERATE

TM 9-2320-366-20-3

w5. M1089 STINGER/TELESCOPIC LIFT CYLINDERS/FOLDING CYLINDERS/RIGHT 30K WINCH

DO NOT OPERATE

INITIAL SETUP

Tools and Special Tools

Equipment Conditions

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

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

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

Pan, Drain (Item 24, Appendix C)

Personnel Required

Goggles, Industrial (Item 15, Appendix C)

(2)

Wrench, Torque, 0-175 lb-ft (Item 58, Appendix C)

Transducer, STE/ICE-R (Item 1, Appendix J)

Material/Parts

Rag, Wiping (Item 50, Appendix D)

References

TM 9-4910-571-12&P

START

WARNING

Read WARNING

KNOWN INFO

TEST OPTIONS

Hydraulic oil level OK.

Pressure Test

on following page.

PTO OK.

REASON FOR QUESTION

Is pressure present at

Left 30K winch OK.

If pressure is between

three stage hydraulic

Stifflegs OK.

2400-3000 psi at output

pump output?

15K self-recovery

hose of three stage

winch OK.

hydraulic pump, main

control valve is faulty.

POSSIBLE PROBLEMS

If pressure is below 2400

Faulty lower main control

psi, pump is faulty.

valve.

Faulty three stage

hydraulic pump.

YES

Notify DS Maintenance.

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