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Page Title: Section XIII. MAINTENANCE OF ACCESSORY ITEMS
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( 5 ) Inspect the bearing cones for rough,
do not require servicing, they can remain on the
scored, or brinnelled rollers, scored races, and bent
wheels.
cages.  Inspect the bearing cups for wear and
(2) Do not remove the bearing cups (12 and
scoring. If either the cone or cup of a bearing set is
13) from the hub (8) unless you plan to replace the
bearing cones (9 and 11). The bearings must be
damaged, you must replace both parts.
c. Reassembly  and Installation. R e a s s e m b l y
replaced as sets.
and installation is essentially the reverse of the
b. Cleaning and Inspection.
disassembly sequence; refer to figure 4-14. Use
(1) Discard all gaskets and seals.
new seals for reassembly. Before installing the
WARNING
wheel bearings you should service them as follows:
Clean all parts in a well-ventilated area.
Avoid inhalation of solvent fumes and
(1) Pack wheel bearings with grease before
installing them in the hub. Refer to LO 5-4320-
prolonged exposure of the skin to
272-12.
cleaning solvent. Wash exposed skin
thoroughly.
(2) As you reassemble the hub assembly,
adjust the wheel bearings as follows:
(2) Clean the bearing cones by placing them
(a) With the wheel and tire installed on the
in a wire basket and agitating them in a container
hub, tighten the nut (6) while rotating the wheel
of cleaning solvent (fed. spec. P-D-680). After you
and tire until a distinct drag is felt.
clean the bearings, dip them in light oil and wrap in
lint-free paper to prevent entry of dirt and grit.
(b) Continue to rotate the wheel and tire
and back off the nut just enough to release the drag
(3) Clean all other parts with dry cleaning
on the wheel. Bend tang on washer (7) to lock the
solvent; dry thoroughly.
nut (6) in position.
(4) Inspect the wheel for cracks, distortion,
burrs on bead rim, and other damage. Remove all
burrs with a file or fine stone. Replace damaged
wheels.
Section XIII. MAINTENANCE OF ACCESSORY ITEMS
frame. Red reflectors are mounted at the rear and
4-38. Description
amber reflectors are mounted at the front.
a. The fire extinguisher is installed in a bracket
at the left front of the unit.
4 - 3 9 . Accessory Items
b. The tool box is mounted on the left front of
a. Removal.
the pump frame.
(1) Remove the fire extinguisher and bracket
c. Four reflectors are mounted on the pump
(items 1 thru 6, fig. 4-15).

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