Komatsu 830E-AC Shop Manual page 176

FIGURE 7-43.
5. Press front retainer/seal assembly (40) onto the
fan mounting hub (42) using tooling (D). The
inner race of the retainer should be recessed
1.0 mm (0.040 in.) below the shoulder.
Check carefully to ensure that the retainer/seal
assembly is installed straight and is not bent or
damaged in any way which will cause
interference between it and the bearing retainer
after assembly.
• Front wear sleeve
interchangeable with rear (notched) wear
sleeve (4). The inside diameter of the front
wear sleeve is color coded red.
• Note the direction of the lead pattern on the
sleeve. The wear sleeve must be installed
with the pattern leading in the correct
direction in order to prevent leakage from
occurring.
• Use extreme care when handling the wear
sleeve. The slightest nicks or scratches may
cause leakage.
NOTE: Some fan hubs may have a small hole on the
wear sleeve mounting journal. This hole is not used
and will be covered by the wear sleeve.
C7-22
(39) is NOT
Fan Clutch
FIGURE 7-44.
FIGURE 7-45.
6. Coat the inside diameter of front wear sleeve
(39) and the wear sleeve diameter of the shaft
with Loctite Primer N and #242 (or equivalent).
Using tooling (D), press the wear sleeve onto
the shaft until it is flush with the shoulder.
C07001