TM-9-2320-285-24-1
TRUCK TRACTOR, YARD TYPE, 43,500 LB GVW, DED, 4X2, ARMY MODEL M878A1
TECHNICAL MANUAL; ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
OCTOBER 1985
TM-9-2320-285-24-1 - Page 911 of 987
TM 9-2320-285-24-1
2-78.
FIFTH WHEEL HYDRAULIC SYSTEM MAINTENANCE (CONT)
b.
Hydraulic Filter and Lines and Fittings (cont).
(2) Lines and Fittings (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
CLEANING
8
a.
All hoses
Clean
Use clean cloth moistened
with clean hydraulic oil
WARNING
Dry cleaning solvent (P-D-680), used to clean parts is
toxic and flammable.
Wear
protective goggles and gloves
and use only in a well ventilated area.
Avoid contact
with
skin, eyes, and clothes and don’t breathe vapors.
Do not use near open flame or
excessive heat and don’t
smoke when using it.
Failure to do so could cause serious
injury.
If you become dizzy while using cleaning
solvent, get fresh air and medical
attention immediately.
If contact with skin or clothes is made, flush with
large amounts of
water.
If contact with eyes is made,
wash
eyes
with
water
and
seek
medical aid immediately.
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 possi ble
blindness.
If you hurt your eyes or if a foreign
object is blown into your eyes, seek
medical attention
immediately.
b.
All other parts
Clean
Use cleaning solvent P-D-680;
dry with compressed air or
clean cloths
INSPECTION
9
a.
Velocity fuses
Inspect
Replace if cracked, inopera-
(33 and 45)
tive, or threads damaged
and bleed
valve (14)
b.
All hose assem-
Inspect
Replace if cracked, worn,
blies
chafed, broken, or threads
damaged
c.
All other parts
Inspect
Replace if cracked, split, or
threads damaged
2-888
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