TM 9-2320-279-34-3
M977, M985, and M984E1 Crane Maintenance Instructions (Cont)
17-11. MAST AND BUSHINGS REMOVAL/INSTALLATION.
This task covers:
a. Removal
c. Installation
b. Cleaning/Inspection
d. Follow-on Maintenance
INITIAL SETUP
Models
References
M977, M985
None
Test Equipment
Equipment Condition
None
TM or Para
Condition Description
Special Tools
Para 17-10
Boom removed.
None
Special Environmental Conditions
Supplies
None
Compound, sealing and thread locking,
Item 26, Appendix C
General Safety Instructions
Solvent, dry cleaning, Item 57, Appendix C
None
Ties, cable, plastic, Item 65, Appendix C
Level of Maintenance
Personnel Required
Direct Support
MOS 63W, Wheel vehicle repairer (2)
a. Removal.
(1) Attach suitable lifting device and raise mast (1).
(2) Disconnect four hydraulic lines (2).
NOTE
Remove plastic cable ties as necessary.
(3) Remove two screws (3), clamps (4), and spacers (5).
(4) Remove nut (6), washer (7), and clamp (8).
17-56.4
