TM-9-2320-279-34-3

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

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

TM-9-2320-279-34-3 - Page 123 of 717

M977, M985, and M984E1 Crane Maintenance Instructions (Cont)

TM 9-2320-279-34-3

17-10.1. BOOM REMOVAL/INSTALLATION (M984E1).

This task covers:

a. Removal

c. Installation

b. Cleaning/Inspection

d. Follow-on Maintenance

INITIAL SETUP

Models

Equipment Condition

M984E1

TM or Para

Condition Description

Test Equipment

TM9-2320-279-10 Outrigger extended.

None

Para 6-12.1

Overload sensor switches

Special Tools

disconnected.

TM 9-2320-279-10 Hook block released.

None

TM 9-2320-279-10 Raise boom 15°.

Supplies

Special Environmental Conditions

Compound, sealing and thread locking,

None

Item 26, Appendix C

General Safety Instructions

Personnel Required

None

MOS 63W, Wheel vehicle repairer (2)

Level of Maintenance

References

Direct Support

None

a. Removal.

(1)

Attach suitable lifting device to boom (1).

(2)

Disconnect hydraulic hose (2) from line (3).

(3)

Remove two screws (4), spacers (5), and four clamp halves (6).

(4)

Move line (3) to clear cylinder (7).

17-56

Change 2