TM-9-2320-366-34-1

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

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; VOLUME NO. 1 OF 4

AUGUST 2005

CHANGE 2

TM-9-2320-366-34-1 - Page 1225 of 1591

k1. DUMP BODY DOES NOT RAISE

TM 9-2320-366-34-1

Perform Electrical System Troubleshooting e143.

Dump Body Does Not Raise (TM 9-2320-366-20-2)

prior to beginning this task.

NOTE

TEST OPTIONS

KNOWN INFO

NO

REASON FOR QUESTION

Pressure Test or

STE/ICE-R Test #51

YES

Replace hydraulic rotary

pump (para 16-91).

1.

WARNING

CAUTION

Read WARNING and

CAUTION on

following pages.

2-1068

Change 2

Materials/Parts

Rag, Wiping (Item 60, Appendix C)

Tee, Tube (Item 88.3, Appendix C)

Tee, Tube (Item 88.2, Appendix C)

Reducer, Tube (Item 60.2, Appendix C)

Reducer, Tube (Item 60.1, Appendix C)

Hose Assembly, Nonmetallic (Item 40.1, Appendix C)

Cap, Tube (Item 17.3, Appendix C)

Plug, Tube Fitting, Threaded (Item 55.3, Appendix C)

Indicator, Temperature, Label (Item 40.4, Appendix C)

Personnel Required

(2)

References

TM 9-4910-571-12&P

INITIAL SETUP

Equipment Conditions

Engine shutdown (TM 9-2320-366-10-1)

Tools and Special Tools

Tool Kit, Genl Mech (Item 78, Appendix B)

Pan, Drain (Item 42, Appendix B)

Goggles, Industrial (item 28, Appendix B)

Lifting Bracket, Dump Body (Item 8, Appendix D)

Gloves, Mens (Item 34.2, Appendix C)

STE/ICE-R (Item 70, Appendix B)

Transmitter, Pressure (Item 1, Appendix G)

Hydraulic oil level OK.

PTO OK.

Hydraulic hoses and fittings

OK.

Hydraulic oil filter OK.

Dump body electrical system

OK.

POSSIBLE PROBLEMS

Faulty hydraulic rotary pump.

Faulty four-way relief valve.

Faulty pressure reducing

valve.

Faulty dump body hoist

cylinder.

If hydraulic rotary pump is not

supplying at least 2,850 PSI

(19,650 kPa), hydraulic rotary

is faulty.

Is hydraulic rotary pump

supplying at least 2,850 PSI

(19,650 kPa)?