TM 9-4940-568-34
3-139
3-43. CRANE TUBING REPLACEMENT
THIS TASK COVERS:
Hydraulic Tubing Locations
INITIAL SETUP
Tools
Tool Kit, General Mechanic’s
(Item 67, Appendix F)
Equipment Condition
FRS unloaded, (TM 9-4940-568-10).
Crane quick disconnects disconnected
(Para 3-4)
General Safety Instructions
To avoid personal injury, always assume
hydraulic lines have pressure. Slowly crack
hydraulic lines open to allow all pressure to
escape. Always wear safety glasses.
Hydraulic Tubing Locations
NOTE
Place a container to catch
hydraulic oil during tube removal.
Plug all tubes after removal to
prevent dirt from entering the
hydraulic system.
Tag and mark all tubes prior to
removal.
Note location of plastic cable ties
prior to removal.
Remove plastic cable ties as
required.
Remove clamps and support
brackets as required.
Inspect all tubing and fittings for
cracks, kinks, nicks, dents,
stripped threads, and cuts.
Replace damaged parts.
Tube Name
From
To
Main Supply Tube
Pressure inlet connection (1)
Bulkhead fitting (2)
Supply Tube
Bulkhead fitting (3)
Manual override valve fitting
(4)
Main Return Tube
Bulkhead fitting (5)
Tee tube end (6)
T
LS
G1
X1
P
2
5
6
1
3
4
