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 TM 9-2320-285-24-2
3-42.
FIFTH WHEEL HYDRAULIC SYSTEM MAINTENANCE (CONT)
a. Hydraulic Pump (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
CLEANING (cont)
WARNING
Compressed air must not exceed 30 psi. Wear safety glasses when drying parts with compressed air.
Failure to do so could cause serious injury to eyes and possible blindness. If you hurt your eyes or if a
foreign object is blown into your eyes, seek medical attention immediately.
3
All parts
Clean
Use cleaning solvent P-D-680;
dry thoroughly with
compressed air
INSPECTION
4
a.
Pump body (6)
Inspect
Place a straightedge across
and cover
machined surfaces that mate
(14)
pump body (6) with cover
(14), to check for warped
mating surfaces. Replace if
warped, cracked, broken, of
distorted
b.
Idler gear (11)
Inspect
Replace as set if teeth
and drive
cracked, broken, or
gear (12)
missing, or shafts cracked
or distorted
c.
All other parts
Inspect
Replace if cracked, broken,
distorted, or threads
damaged
REASSEMBLY
NOTE
Lightly coat all parts with clean hydraulic oil before reassembly.
5
Hydraulic
a.
All interior
Lubricate
Use clean hydraulic oil
pump
parts
3-419
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