TM 9-2350-256-20
CHAPTER 11: MAINTENANCE OF MAIN WINCH. HOIST
WINCH, AND RELATED COMPONENTS
SECTION IV: HOISTING BOOM ASSEMBLY
Para.
Task
Page
11-11
Replace/Service Hoisting Boom, Cylinders, and Related Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . .
11-16
11-12
Services Stayline Cylinder Limit Valve Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-20
11-11 REPLACE/SERVICE HOISTING BOOM, CYLINDERS, AND RELATED PARTS
THIS TASK COVERS
a. Removal
b. Installation
c. Inspection
INITIAL SET-UP
Tools:
Parts-Continued:
Tool kit, general mechanic’s (Appendix c, item 53)
Pins, cotter (2) (Appendix G, item 226)
Parts:
Reference:
•Lockwashers (3) (Appendix G, item 130)
TM 9-2350-256-24P-2
•Lockwashers (15) (Appendix G, item 132)
Elevating the hoisting boom when both the main engine and the Auxiliary Power Unit are inoperable
is a safety hazard and may cause injury to personnel.
a. REMOVAL
NOTE
The hoisting boom will only be repaired (parts removed and installed) to the extent of the
replacement of parts authorized in TM 9-2350-256-24P-2.
1
Remove two screws (1), guide bar (2), and spring
(3) from guard (4).
2
Remove two pulleys (5) and guard (4) by removing
two cotter pins (6), two nuts (7), two lockwashers
(8), wire rope (9), and shaft (10).
3
Remove two chains (11) by removing two retaining
pins (12) and two pm shackles (13) from each.
4
Remove two screws (1-1), two lockwashers (15)
with pm (16), and washer (17) from shoe tree (18).
11-16
