Loader Bobcat 773. Manual - part 57

MOTOR CARRIER (Cont’d)

Assembly (Cont’d)

Use the fabricated press tool (Item 1) [A] and 3.0 inch
driver tool, install the new inner bearing (Item 2) [A] on the
sprocket shaft as shown.

Remove the press and drive tools from the sprocket shaft.

Put the motor carrier housing (Item 1) [B] over the
sprocket shaft as shown.

Put the outer bearing over the end of the sprocket shaft
and press the bearing on with the press tool and driver
tool [B].

Remove the press and driver tools from the sprocket
shaft.

A

P–04366

2

1

B

P–04371

1

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773 BICS Loader

Service Manual

C

P–04375

1

MOTOR CARRIER (Cont’d)

Assembly (Cont’d)

Put the snap ring (Item 1) [A] over the end of the sprocket
shaft.

NOTE: Use the snap ring pliers to spread the snap

ring so it will fit over the sprocket shaft.

Using the press and driver tools, press the snap ring (Item
1) [A] over the sprocket.

Press the snap ring on until it snaps into the groove on the
shaft.

Put a new shaft seal (Item 1) [B] on the sprocket shaft.

Use MEL1420 Carrier Seal Tool (Item 1) [C] and install
the shaft seal.

Hit the tool with a hammer until the seal is fully seated on
the carrier shaft [C].

Refer to SHAFT SEAL REPLACEMENT Page 4–11 for
complete shaft seal installation procedure.

Revised Jan. 99

B

P–04376

1

A

P–04374

1

773 BICS Loader

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Service Manual

MOTOR CARRIER (Cont’d)

Assembly (Cont’d)

Check the end paly of the motor carrier as follows:

Use a rubber mallet [A], tap down on the cluster shaft.

Install a dial indicator as shown in Photo [B].

Use a pry bar (Item 1) [B] to lift the carrier shaft and read
the end play on the dial indicator.

The carrier shaft must turn freely with end play not to
exceed 0.007 inch (0,17 mm).

Revised Jan. 99

B

N–15087

1

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773 BICS Loader

Service Manual

A

N–15088

AXLE SEAL

Removal And Installation

The tools listed are needed for the following procedure:

Axle Hub Puller Tool
MEL1399 – Seal Driver Tool
MEL1242 – Power Ram (may be used if desired)

To loosen the axle hub mounting bolt (Item 1) [A], use the
following procedure:

Before lifting and blocking the loader, loosen the hub
mounting bolt (Item 1) [A].

NOTE: If the axle and bearings are being replaced,

also loosen the sprocket mounting bolt
inside the chaincase before lifting and
blocking the loader. (See Page 4–21.)

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

Remove the front tire/wheel assembly.

Installation:  Tighten the wheel mounting nuts to
105–115 ft.–lbs. (142–156 Nm) torque.

Remove the hub mounting bolt (Item 1) [A] and washer
from the axle.

Installation:  Tighten the bolt to the following
specifications:
2.0 inch bolt length

600 ft.–lbs. (814 Nm) torque.

. . . . . 

2.25 inch bolt length

800 ft.–lbs. (1085 Nm) torque

. . . 

Remove two of the wheel mounting studs (Item 2) [A].

Use a wheel mounting nut on each stud and remove the
two studs with a hammer.

Installation: Support the flange of the axle hub and install
the two studs with a hammer. A hydraulic press can also
be used to install the studs.

Install the puller tool (Item 1) [B] on the axle hub.

A driver tool (Item 2) [B] can be used for centering the
threaded rod of the puller.

Use a wrench with the puller and remove the axle hub
from the axle tube. A spacer and a power ram can be used
between the axle and the tool if available, instead of the
wrench, threaded rod and driver tool.

NEVER STAND IN–LINE OF THE HUB WHEN
REMOVING A HUB FROM AN AXLE. The hub
has a tapered fit on the axle end and can come
off the axle with great force and cause serious
injury.

W–2186–0395

Revised June 01

A

P–04157

1

2

2

773 BICS Loader

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Service Manual

B

P–04159

2

1