TM-9-2320-279-34-1

M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS DIRECT SUPPORT AND GENERAL SUPPORT, VOLUME 1 OF 3

TM-9-2320-279-34-1 - Page 583 of 709

TM 9-2320-279-34-1

Transfer Case Maintenance Instructions (Cont)

Section III. TRANSFER CASE CONTROLS

8-12.

HI-LO RANGE TRANSFER CASE LOCK-UP VALVE REPAIR.

This task covers:

a. Disassembly

b. Cleaning/Inspection

c. Assembly

d. Follow-on Maintenance

INITIAL SETUP

Models

All

Test Equipment

None

Special Tools

None

Supplies

Special Environmental Conditions

None

Oil, lubricating, Item 48, Appendix C

Solvent, dry cleaning, Item 57, Appendix C

General Safety Instructions

None

Personnel Required

MOS 63W, Wheel vehicle repairer

References

None

Equipment

Condition

TM or Para

Condition Description

HI-LO range transfer case

lock-up valve on clean work

surface.

Level of

Maintenance

Direct Support

a. Disassembly.

(1)

Remove boot (1) and two nuts (2).

(2)

Remove adapter (3), plunger (4), valve stem (5), and two preformed packings (6 and 7).

(3)

Remove capnut (8), spring (9), seat (10), and inlet valve (11) from body (12).

8-44