TM 9-2320-279-34-3
M977, M985, and M984E1 Crane Maintenance Instructions (Cont)
17-11.1 MAST AND BUSHINGS REMOVAL/INSTALALLATION (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
Para 17-10.1
Boom removed.
None
Para 17-14.1
Erection cylinder
Special Tools
disconnected.
None
Special Environmental Conditions
Supplies
None
Compound, sealing and thread locking,
General Safety Instructions
Item 26, Appendix C
None
Personnel Required
Level of Maintenance
MOS 63W, Wheel vehicle repairer
Direct Support
References
None
a. Removal.
(1)
(2)
(3)
(4)
(5)
(6)
Attach suitable lifting device to mast (l).
Raise mast (l).
NOTE
Remove all ties as necessary
Disconnect four hydraulic lines (2).
Remove two screws (3), clamps (4) and pull hose (5) clear of mast (1).
Remove screw (6), washer (7), spacer (8), and lockpin (9).
Remove pin (10) and mast (1) from crane (11).
Change 2 17-58.1
