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

–3–34–

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

–3–35–

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

–3–36–

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

–3–37–

Service Manual

B

MC–01648

1