TM 9-2320-272-24-2
3-387. WRECKER CRANE HYDRAULIC HOSE AND TUBE REPLACEMENT
THIS TASK COVERS:
b. Installation
a. Removal
REFERENCES (TM)
APPLICABLE MODELS
LO 9-2320-272-12
M936/A1/A2
TM 9-2320-272-10
TOOLS
TM 9-2320-272-24P
General mechanic's tool kit (Appendix E, Item 1)
EQUIPMENT CONDITION
MATERIALS/PARTS
Parking brake set (TM 9-2320-272-10).
Shipper brace in travel position
Six locknuts (Appendix D, Item 291)
(TM 9-2320-272-10).
Cap and plug set (Appendix C. Item 14)
Hydraulic oil reservoir drained (LO 9-2320-272-12).
CAUTION
When disconnecting hydraulic hoses and tubes, plug all openings
to prevent dirt from entering and causing internal parts damage.
NOTE
Do not twist hose during removal or attempt to remove hose
with one wrench.
Hose fitting ends connected by a single hexagonal nut cannot be
disconnected until the flare nut connected at the opposite end is
removed. The entire hose must be free to turn whenever
removing hose connected by a single hexagonal nut.
Tag all hoses and lines for installation.
Have drainage container ready to catch oil.
1.
Remove locknut (8), clamp (3), hose (4), and/or tube (1) from bracket (6) and wrecker body (7).
Discard locknut (8).
2.
Position wrenches on hexagonal fitting (2) and flare nut (5).
3.
Holding hexagonal fitting (2) in place, loosen flare nut (5), and disconnect hose (4) and/or tube (1)
from hexagonal fitting (2).
4.
Repeat steps 1 through 3 for remaining hoses (4) and/or tubes (1).
CAUTlON
Ensure no particles of plugging become trapped in crane hydraulic
system during installation of hoses or tubes. Failure to do so may
result in damage to equipment.
NOTE
Do not twist hose or attempt to install hose with one wrench.
Hose fitting ends connected by a single hexagonal nut cannot be
connected until the hexagonal nut end is connected at the
opposite end. The entire hose must be free to turn whenever
installing hose connected by a single hexagonal nut.
3-952
