Loader Bobcat 853, 853H. Manual — part 32
FIXED TENSIONER PULLEY (Cont’d)
Disassembly
NOTE: Be careful, the pulley hub is full of oil.
Remove the cap [A].
Remove the bolt and washer [B].
Install a long bolt into the shaft [C].
Remove the idler pulley and bearing from the shaft using
a press [D].
A
CD–12634
C
CD–12636
D
CD–12637
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853, 853H Loader
Service Manual
B
CD–12635
FIXED TENSIONER PULLEY (Cont’d)
Disassembly (Cont’d)
Install a bearing puller behind the seal and wear sleeve
[A].
PHOTO CLARITY ONLY: If the bearing puller is installed
behind the bearing, seal and wear sleeve, the wear sleeve
will also be removed [B].
Remove the bearing, seal and wear sleeve using the
press [C].
A
CD–12638
C
CD–12640
853, 853H Loader
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Service Manual
B
CD–12639
FIXED TENSIONER PULLEY (Cont’d)
Assembly
NOTE: The bearings, cups and spacers are a
matched set and must be replaced as a unit.
If the spacer is replaced, compress the new spacer and
install into the pulley [A].
Use a driver tool (1–5/16’’ diameter) and push the spacer
into the machined groove [B].
Install the bearing cup using the driver tool (both sides)
[C].
NOTE: The seal side of the pulley hub has the larger
I.D. diameter.
Install the taper roller bearing to the pulley (seal side) [D].
A
CD–12641
C
CD–12643
D
CD–12644
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853, 853H Loader
Service Manual
B
CD–12642
FIXED TENSIONER PULLEY (Cont’d)
Assembly (Cont’d)
Put sealant (P/N 6633538) around the diameter of the
shaft where the wear sleeve is installed [A].
Put grease (P/N 6599719) on the seal lips (Item 1) [B].
Make sure the grease is between the outside and inside
lips and all the way around the seal.
Press the seal into the pulley hub larger diameter using
a press [C].
NOTE: The wear sleeve and the seal must be
replaced as a unit.
DO NOT damage the seal lips with the sharp edge of the
wear sleeve. Install the wear sleeve into the seal.
Use a spacer tube which goes over the shaft and pushes
on the inside diameter of the taper bearing, install the
pulley, seal and wear sleeve onto the shaft [D].
A
CD–12645
C
CD–12646
D
CD–12647
853, 853H Loader
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Service Manual
B
MC–01648
1
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