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 834 of 1632

f10. WTEC II TRANSMISSION ECU PUSHBUTTON SHIFT SELECTOR (TEPSS) DISPLAYS MAIN

CODE 57 AND ANY SUB CODE

TM 9-2320-366-20-2

2-1640

Change 1

INITIAL SETUP

Equipment Conditions

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

Tools and Special Tools

Goggles, Industrial (Item 15, Appendix C)

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

Multimeter, Digital (Item 22, Appendix C)

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

Pan, Drain (Item 24, Appendix C)

Wrench, Torque, 0-200 lb-in. (Item 59, Appendix C)

Wrench Set, Socket (Item 51, Appendix C)

Materials/Parts

Packing, Preformed (Item 197, Appendix G)

Adapter, Straight, Pipe to Tube (Item 1.2, Appendix D)

Adapter, Straight, Tube to Boss (Item 1.3, Appendix D)

Hose Assembly, Nonmetallic (Item 24.13, Appendix D)

Personnel Required

(2)

References

TM 9-491-571-12&P

1.

WARNING

CAUTION

Read WARNING and

CAUTION on

following page.

YES

Notify DS Maintenance.

NO

TEST OPTIONS

Clutch Pressure Test or

STE/ICE-R Test #50

REASON FOR QUESTION

If there is pressure to C3 clutch

when shift is made, DS

Maintenance needs to be

notified.

KNOWN INFO

Transmission oil level OK.

Fuse OK.

Batteries OK.

WTEC II cab transmission

harness OK.

Transmission external wiring

harness OK.

POSSIBLE PROBLEMS

Faulty control valve module.

Faulty WTEC II TEPSS.

Faulty C3 pressure switch.

Is zero pressure present

on C3 clutch when shift

is made into affected range?

START