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54
Chapter Vii—Belt Pulley
7 PULLEY—740
PULLEY SHAFT—746
SEAL—750
\
"Sn",
BEARING CONE—743
oy
RING
CUP—744
@,
rg BEARING:
"4%
BEARING CONE—743
"Bh
HOUSING—762
NUT—33860-S
GEAR—737
BEARING CONE—752
COVER—741
Pr
BEARING
CUP—744
ger
BEARING CONE—743
BEARING CUP—753
GASKET—747
RM-609
Fig. 51—Belt Pulley, Disassembled
172.
INSPECTION
AND
REPAIR.
Clean
all parts thoroughly
in cleaning
fluid.
Discard
all used
gaskets
and oil seals.
Inspection
must
cover
the housing,
gears,
shaft, bearings, and pulley.
a. Housing. Replace the housing (fig. 51) if it is cracked, if the
gasket surface is damaged, or if the threads are stripped. Replace a
bearing race if it is pitted, corroded, or cracked. To remove a bearing
race, drive it out of the housing with a brass drift. To install the race,
drive it into the housing
with a driver that will apply pressure
evenly on all sides of the race.
b. Drive and Driven Gears (Matched). Replace both gears if
either gear has broken,
chipped,
or worn
teeth, if the gears
are
excessively noisy when operating, or if the oil seal surface on the
drive gear is damaged.
ce, Pulley Shaft. Replace the pulley shaft (fig. 51) if the splines
or oil seal surfaces are damaged or if the threads are stripped.
d. Bearings. Replace a bearing (fig. 51) that is pitted, corroded,
or if any of the rollers are missing. Remove the bearings with a puller
as shown in fig. 52.
§ 172. d.
3730-47)
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