TM 5-4930-218-14
Table 5.1. Direct Support and General Support Troubleshooting-Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
LANDING
GEAR-continued
2. LANDING GEAR HARD TO EXTEND OR RETRACT.
Step 1.
Check for lack of lubricant in gear head and on shaft screw,
Disassemble landing gear as necessary to replace gear head with grease. Also apply grease to shaft screw (para 9-2 through
9-4).
S e c t i o n Ill. GENERAL MAINTENANCE
you coat moving and sliding parts with a light oil,
5-5. General
Also coat packings and oil seal lips with light oil.
a. This section contains general maintenance in-
This reduces the possibility of cutting the packings
structions which you must observe during removal,
and seal lips when installing over sharp edges or
disassembly, repair, and reassembly of component
threads.
assemblies that were removed from the trailer
f. If assembly work cannot be completed the same
because of malfunction.
day, cover the assembly and remaining parts with
b. Prior to removing component assemblies, you
clean cloths or sheet plastic to keep out dust and con-
should thoroughly clean the surrounding area and the
taminants which accumulate overnight. Apply a
exterior surfaces of the unit being removed, Use dry
light coat of oil to the remaining parts, and clean
cleaning solvent (fed. spec. P-D-680) for most general
parts prior to beginning reassembly the following
cleaning requirements. If assemblies are caked with
day.
grease, use a steam cleaner with solvent. Take care to
g. After reassembly is completed, reclean the ex-
wear protective clothing when decreasing, Clean new
terior surfaces and check condition of paint. If paint
components or parts if they are received with a
was damaged during reassembly, sand the areas af-
preservative coating.
fected and touch up with the correct paint and color.
c. When disassembling components, tag and iden-
If sanded areas are through the paint and down to
tify any matched or mated parts in the unit so that
bare metal, apply a primer coat and sand lightly
they can be returned to their original locations or
before applying final coat. Mask off areas or parts
positions when reassembled.
that are not to be painted.
d. Prior to component assembly, make certain that
h. Make certain components are initially greased
your hands, work bench, assembly tools, and parts to
or filled with oil, so that there is no chance for
be assembled are thoroughly clean, Use clean, lint-
damage prior to scheduled service of the component,
free shop cloths or paper towels when necessary to
If lubrication is not practical, you should tie a war-
wipe parts,
ning tag on the equipment indicating unit has been
e. When reassembling components, be sure that
drained and must be serviced before operation,
