TM 5-3895-373-20
CHAPTER 8
TRANSMISSION SYSTEM MAINTENANCE
Para
Page
General Maintenance Procedures.........................................................................................
8.1
8-1
Replace Hydraulic Charge Filter Assembly...........................................................................
8.3
8-9
Replace Hydraulic Oil Cooler ................................................................................................
8.2
8-2
8.1.
GENERAL MAINTENANCE PROCEDURES.
All unit level maintenance shall be performed in
accordance with good and safe shop practices. Observe
the following general instructions and requirements when
performing transmission system maintenance.
a.
Thoroughly clean hydraulic hoses and fittings
before
disconnecting.
Always
plug
or
cap
off
disconnected fittings to prevent dirt and contaminants
from entering the system. Failure to clean hoses and
fittings and to plug or cap open fittings may result in
hydraulic system contamination and equipment damage.
b.
Always tag mating connectors and fittings before
disconnecting. Tagging of mating connectors and fittings
will ease reassembly and reduce assembly errors.
c.
Use a backup wrench when loosening or
tightening inline fittings. Using a backup wrench will
prevent unnecessary damage to attached lines and/or
smaller fittings.
d.
Thread locking compound is used with most
threaded fasteners. If a threaded fastener will not break
loose, heat threaded area of fastener from 500° to 600°F
(232° to 315C) with heater gun. If the special solvent
used to remove thread locking compound from screw
threads fails to remove buildup, discard fastener.
e. Discard all removed gaskets, seals, preformed
packings, self-locking nuts, and lockwashers.
f. Inspect all removed components for obvious
wear or damage. Replace all worn, bent, broken, or
otherwise damaged parts.
g. Inspect all removed fasteners for thread
damage. If thread damage is found, replace fastener.
Replace flat washers if galled or bent. Use screw
extractor set (Item 15, Appendix E) to remove broken
studs or screws.
h. Torque values cited in the text apply to modified
SAE Grade 8 fasteners at required clamping loads.
i. Use only authorized replacement parts. Refer to
TM 53895-373-24P, Repair Parts and Special Tools List
(RPSTL) for authorized replacement parts.
j. Observe all warnings and cautions. Wear
protective clothing and equipment as specified. Observe
the Safety and Hazard Warnings provided in TACOM
technical bulletin TB 43-0216.
8-1