TM 5-3895-373-20
CHAPTER 9
TRACK ASSEMBLY MAINTENANCE
Para
Page
General Maintenance Procedures............................................................................ 9.1
9-1
Replace Track Pad................................................................................................... 9.3
9-8
Replace Track Tensioning Accumulator .................................................................. 9.2
9-2
9.1.
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 track assembly maintenance.
a.
Areas of the paving machine exposed to paving
material buildup require cleaning prior to disassembly.
Use hammers, chisels, and scrapers to remove thickest
sections of buildup. If available, use heater gun to soften
deposits adhering to components; remove softened
buildup with putty knife. When heating paving material,
keep second person with fire extinguisher at hand and
avoid overheating. If heater gun is not available, use
solvent or fuel washdown system to soften paving
material.
b.
Thoroughly clean hydraulic hoses and fittings
before
disconnecting.
Always
plug
or
cap
off
disconnected fitting 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.
c.
Always tag mating connectors and fittings before
disconnecting. Tagging of mating connectors and fittings
will ease reassembly and reduce assembly error
d.
Use a backup wrench when loosening or
tightening in- line fittings. Using a backup wrench will
prevent unnecessary damage to attached lines and/of
smaller fittings.
e.
Thread locking compound is used with most
threaded fasteners. If a threaded fastener will not break
loose, heat threaded aria of fastener from 5000 6000 F
(2320 to 3150 C) with heater gun.. If the special solvent
used to remove thread locking compound from screw
threads fails to remove buildup, discard fastener.
f.
Discard all removed gaskets, seals, preformed
packings, self-locking nuts, lockwasher, spring pins, and
deformed hardware.
g.
Inspect all removed components for obvious
wear of damage. Replace all worn, bent, broken, or
otherwise damaged parts.
h.
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
i.
Clean
painted
surfaces
thoroughly
before
repainting. Do not paint over rust or corrosion. Cover air
breather ports and hydraulic components. Do not paint
bearings or other parts that require surface lubrication.
Reference
TM
43-.139
for
equipment
painting
requirements
j.
Use only authorized replacement parts. Refer to
TM 53895-373-24P, Repair Parts and Special Tools List
(RPSTL) for authorized replacement parts.
k.
Torque values cited in the text apply to modified
SAE Grade 8 fasteners at required clamping loads.
l.
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.
9-1