Loader Bobcat 773. Manual - part 87

FAN GEARBOX (Cont’d)

Checking Backlash (Cont’d)

When the backlash is correct, install the seals, cap and
gear oil as follows:

Remove the bolts from the flanges and separate the two
housings.

Put liquid adhesive (LOCTITE #242) on the outside
diameter of the seal(s) [A].

Install the seal(s) flush with the housing surface [B] & [C].

Clean any oil from the flange surface.

Install the long housing on the short housing flange.

Install the four bolts and part number tag.

Install and tighten the nuts to 25–28 ft.–lbs. (34–38 Nm)
torque.

Revised Jan. 99

A

P–03089

C

P–02986

SHORT HOUSING

773 BICS Loader

–7–27–

Service Manual

B

P–02985

LONG HOUSING

AIR CLEANER

Removal And Installation

Loosen the hose clamp (Item 1) [A] on the air cleaner
hose.

Loosen the clamp (Item 2) [A] from the hose on the
engine manifold.

Remove the two mounting bolts (Item 1) [B] from the top
mount of the air cleaner.

Remove the lower mounting bolt (Item 1) [C] and relay
switch mounting bracket (Item 2) [C] from the air cleaner.

Installation: Tighten the three mounting bolts to 25–28
ft.–lbs. (34–38 Nm) torque.

BOSS

®

 Loaders Only: Disconnect the wire harness

connector (Item 1) [D] from the air cleaner sensor on the
air cleaner.

Remove the air cleaner from the engine compartment.

Reverse the removal procedure to install the air cleaner.

A

P–03885

1

2

C

P–03884

1

2

D

P–04203

1

–7–28–

773 BICS Loader

Service Manual

B

P–03883

1

ENGINE

Removal And Installation

Put jackstands under the rear corners of the loader.

Revised Jan. 99

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

Drain the hydraulic reservoir. (See Page 2–1.)

Disconnect the steering linkage. (See Page 3–1.)

Remove the battery from the loader. (See Page 1–1.)

Drain the engine coolant from the cooling system. (See

Page 1–1.)

Remove the air cleaner. (See Page 7–28.)

Remove the muffler. (See Page 7–5.)

Disconnect the operating system unit (Item 1) [A] (if

equipped) from the back of the operator cab.

Disconnect the engine harness connector (Item 2) [A]

from the operator cab harness.

Remove the harness clamp (Item 3) [A] and remove

engine harness from the clamp.

Disconnect the wires from the engine coolant sensor

(Item 1) [B] (on BOSS

™

 models only).

Pull the coolant sensor harness (Item 4) [A] through the

hole in the loader frame.

Disconnect the BICS

™

 harness connector (Item 1) [C]

and the control harness connector (Item 2) [C] from the

engine harness.

Remove the clamp (Item 3) [C] from the drive belt housing

and remove the engine harness from the clamp.

Mark the four drive motor hoses (Item 1) [D] for correct

installation.

Disconnect the four drive motor hoses (Item 1) [D] from

the hydrostatic pump.

Disconnect the motor case drain hose (Item 2) [D] from

the hydrostatic pump.

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

Raise the lift arms and install an approved lift arm support
device. (See Page 1–1.)

A

P–04191

1

4

2

3

1

3

2

C

P–04190

773 BICS Loader

–7–29–

Service Manual

B

P–03964

1

2

1

1

D

P–04194

ENGINE (Cont’d)

Removal And Installation (Cont’d)

Disconnect the wire harness connector (Item 1) [A] from
the fuel level sender on the fuel tank.

Disconnect the pilot pressure hose (Item 1) [B] to the tilt
lock valve, from the fitting on the hydraulic pump.

Disconnect the outlet tube/hose (Item 2) [B] to the main
control valve, from the fitting on the hydraulic pump.

Remove the mounting bolt (Item 3) [B] and nut from the
right front engine mount.

Remove the mounting bolt (Item 1) [C] and nut from the
left front engine mount.

Installation: Tighten the mounting bolts to 70 ft.–lbs. (95
Nm) torque.

Disconnect the hand pump (Item 1) [D] from the fuel line
connected to the fuel tank. Cap the fuel lines.

NOTE: (Item 1) [B] is on early models only.

Revised Jan. 99

A

P–04198

1

C

P–04197

1

D

P–04210

1

–7–30–

773 BICS Loader

Service Manual

B

P–04196

2

1

3