Loader Bobcat 773. Manual - part 52

FIXED DRIVE BELT 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

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B

CD–12639

FIXED DRIVE BELT 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 inch diameter) and push the
spacer into the machined groove [B].

Install the bearing cup using the driver tool [C] (both
sides).

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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773 BICS Loader

Service Manual

B

CD–12642

FIXED DRIVE BELT TENSIONER PULLEY (Cont’d)

Assembly (Cont’d)

Put sealant (P/N 6633538) around the diameter of the
shaft where the wear sleeve is installed on the shaft [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

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B

MC–01648

1

FIXED DRIVE BELT TENSIONER PULLEY (Cont’d)

Assembly (Cont’d)

Install the small bearing spacer [A].

Install the taper roller bearing pushing on the I.D. of the
bearing [B].

Put LOCTITE (P/N 6540410) on the bolt threads [C].

Install the bolt and washer into the shaft [D].

A

CD–12648

C

CD–12650

D

CD–12651

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Service Manual

B

CD–12649