4-6
F-916-0217 Edition
MAINTENANCE AND LUBRICATION
Maintenance Procedures
Repair Parts
Repair parts are illustrated and listed in a separate parts
manual. Replacement of parts due to wear is determined
by examination and measurement in the Maintenance
Procedures of this section.
Tools and Equipment
Tools, equipment, and personnel normally found in a
facility capable of making truck repairs will be adequate
for maintenance of the semitrailer. No other special tools
or equipment should be necessary.
Torque Values
list torque values for standard
hardware and hydraulic fittings. They are intended as a
guide for average applications involving typical stresses
and mechanical surfaces. Values are based on the
physical limitations of clean, plated, and lubricated
hardware. In all cases, when an individual torque value is
specified, it takes priority over values given in this table.
Replace original fasteners with hardware of equal grade.
Cleaning
1. Wash semitrailer to remove all accumulated dirt and
grime.
2. Use any mineral spirits paint thinner (or its
equivalent) to remove grease and oil from all parts of
the trailer. Rinse degreasing solution off with cold
water.
3. Inspect semitrailer for cause of any reported troubles.
WARNING
4. Scrape, sand, prime, and repaint areas where finish
is missing or where there is evidence of corrosion.
5. Replace any missing or illegible decals. Replace any
missing or damaged reflective tape.
6. Use Troubleshooting Guide to check for
“SYMPTOMS” AND “PROBLEMS” of any semitrailer
system not functioning correctly, or where wear,
distortion, or breakage can be found. Administer
“REMEDY” according to right-hand column of
Troubleshooting guide.
7. After disassembling any components, thoroughly
clean dirt and old lubricant from all parts. Do not use
a wire brush on any bearing parts or surfaces — use
a stiff bristle brush. Do not use compressed air, or
spin bearing parts when cleaning. These practices
can throw solvents, dirt, or metal particles into your
eyes. Dry clean parts with lint free, clean, soft,
absorbent, cloth or paper. Wash and dry hands.
8. Inspect seals, seal wiping surfaces, bearing caps,
and bearing cones for wear, pitting, chipping, or other
damage.
Paint thinner and other solvents are flammable
and toxic to eyes, skin, and respiratory tract.
Avoid skin and eye contact. Good general
ventilation is normally adequate. Keep away from
open flames or other combustible items.
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