TM 9-4940-568-34
3-51
3-15. BOOM MID SECTION AND TELESCOPIC CYLINDER REPLACEMENT/
ADJUSTMENT
THIS TASK COVERS:
a. Removal
b. Installation
c. Adjustment
INITIAL SETUP
Tools
Tool Kit, General Mechanic’s
(Item 67, Appendix F)
Materials/Parts
Grease (item 43, Appendix B)
Sealing compound (Item 29, Appendix B)
Packing, preformed (2)
(Item 106, Appendix E)
Packing, preformed (2)
(Item 121, Appendix E)
Personnel Required
1 Assistant
Equipment Condition
FRS unloaded, (TM 9-4940-568-10).
Boom fly section removed (para 3-16).
Special Environmental Conditions
Cleanliness is extremely important when working
on hydraulic equipment. Clean all parts before
disassembly and work in a clean area.
General Safety Instructions
To avoid personal injury, always assume hydraulic
lines have pressure. Crack hydraulic lines open
slowly to allow all pressure to escape. Always
wear safety glasses.
a.
Removal
NOTE
Tag and mark hoses and tubes
prior to removal to ensure proper
installation.
Cap and plug hoses, tubes, and
fittings upon removal.
Place a container to catch
hydraulic oil before disconnecting
hydraulic lines.
(1) Disconnect hoses (1 and 2) from
telescopic cylinder (3).
(2) Remove four screws (4) and washers (5)
from boom base section (6).
