Loader Bobcat 853, 853H. Manual - part 37

AXLE, BEARINGS AND SPROCKET (Cont’d)

Removal And Installation (Cont’d)

Use the tools provided in the (MEL1202B) Axle Bearing
Service Set for bearing cup removal and installation. A
slide hammer is also needed.

Use the long rod and bearing cup tool to remove the inner
bearing cup [A].

To remove the outer bearing cup, install a bearing cup tool
on the slide hammer.

Leave the bearing cup tool loose until the tool is installed
inside the tube [B].

Pull the tool against the bearing cup and tighten the nut.

Use the slide hammer and remove the bearing cup from
the axle tube [C].

A

P–04812

C

P–04816

853, 853H Loader

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Service Manual

B

P–04818

AXLE, BEARING AND SPROCKET (Cont’d)

Removal And Installation (Cont’d)

Use the bearing cup installation tools (Item 1) [A] & (Item
1) [B].

Put the inner cup (Item 2) [A] in the axle tube.

Install the long treaded rod (Item 2) [B] into the axle tube
and through the installation tool (Item 1) [A].

Install the nut (Item 3) [A].

Install the installation tool (Item 1) [B] on the threaded
rod. Install the nut.

Hold the inside nut (Item 3) [A] with a wrench and tighten
the outside nut [B].

Tighten the nut until the bearing cup is installed inside the
axle tube.

Remove the installation tools and threaded rod.

To install the outer bearing cup, install the bearing cup tool
on the driver handle.

Install the bearing cup into the axle tube, and put the tool
into the bearing cup.

Hit the driver handle with a hammer until the bearing cup
is installed inside the axle tube [C].

A

P–04807

1

3

2

C

P–04813

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853, 853H Loader

Service Manual

B

P–04811

1

2

REDUCTION GEARCASE

Reduction Gearcase Seal

The tool listed will be needed to do the following
procedure:

MEL1047 – Seal Installation Tool

Lift and block the loader. (See Page 1–1.)

Remove the hydrostatic motor. (See Page 3–1.)

Drill a hole into the reduction gearcase seal [A].

Install a slide hammer with a screw tip end into the seal
[B].

Remove the reduction gearcase seal.

Install the new quad ring on the installation tool.

Install the backup washer.

Use a hammer, hit the installation tool until the quad ring
is fully seated [C].

A

P–04795

C

P–04806

853, 853H Loader

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Service Manual

B

P–04798

REDUCTION GEARCASE (Cont’d)

Removal And Installation

Lift and block the loader. (See Page 1–1.)

Raise the operator cab. (See Page 1–1.)

Remove the front panel/steering levers assembly. (See
Page 3–1.)

Remove the hydraulic control valve if the right side
reduction gearcase is removed. (See Page 2–1.)

Remove the center cover. (See Page 4–4.)

Remove the front cover. (See Page 4–7.)

Remove the fluid from the chaincase. (See Page 4–27.)

Remove the hydrostatic motor. (See Page 3–1.)

Remove the front axle. (See Page 4–11.)

Remove the reduction gearcase mounting bolts (Item 1)
[A].

Installation: Tighten the mounting bolts to the following
torque:

3/4 inch Bolt – 220–245 ft.–lbs. (300–330 Nm)
1/2 inch Bolt – 65–70 ft.–lbs. (88–95 Nm)

Remove the front and the rear drive chains from the
cluster sprocket.

Connect a chain hoist as shown in figure [B].

Remove the reduction gearcase from the chaincase [B].

Installation: Make sure the large ring (Item 1) [C] and the
O–ring (Item 2) [C] are in position before tightening the
bolts.

Never work on a machine with the lift arms up
unless the lift arms are secured by an approved
lift arm support device. Failure to use an
approved lift arm support device can allow the
lift arms or attachment to fall and cause injury
or death.

W–2059–0598

A

P–04805

1

1

C

P–04797

2

1

B

P–04819

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853, 853H Loader

Service Manual