Loader Bobcat 773. Manual - part 120

A

N–18912

1

C

N–18941

1

2

3

D

N–17741

1

N–17742

2

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Service Manual

773 BICS Loader

CONTROL HANDLE

 

(ADVANCED HAND CONTROL)

(AHC) W/PUSH BUTTON FLOAT (Cont’d)

Actuators Disassembly And Assembly

Remove the actuator (Item 1) [A] from the hydraulic control
valve. (See Page 2–1.)

Installation: Tighten the mount bolts to 90–100 in.–lbs.
(130,2–11,3 Nm) torque.

Check the mounting block (Item 1) [B] and bolts for wear
and replace as needed.

Remove the rubber strap (Item 1) [C] from the mounting
shaft collar (Item 2) [C].

Remove the mounting bracket (Item 3) [C].

Check the rubber strap, mounting shaft collar, and
mounting bracket for wear and replace as needed.

Check the actuator wiring harness connector (Item 1) [D]
and replace if broken.

Installation: Install the wires into the connector as listed
below. The terminal numbers are written on the back of the
connector (Item 2) [D].

Lift and Tilt Actuator

1 – Terminal–Black/Green–Larger diameter wire (16 
       gauge)
2 – Terminal–Green–Larger diameter wire (16 gauge)
3 – Terminal–Red/Green–Larger diameter wire
      (16 gauge)
4 – Terminal–Open
5 – Terminal–Red–Smaller diameter wire (18 gauge)
6 – Terminal–Open
7 – Terminal–Open
8 – Terminal–Black–Smaller diameter wire (18 gauge)

Revised June 01

B

N–18940

1

BICS

™

 VALVE

Lift Arm By–Pass Orifice

To remove, replace or check the orifice for the lift arm
by–pass function, use the following procedure.

Remove the fitting (Item 1) [A] from the BICS valve.

The orifice (Item 1) [B] is slotted so a flat blade
screwdriver can be used to remove it.

Remove the orifice from the valve.

Clean and inspect the orifice (Item 1) [C]. Replace as
needed.

When repairing hydrostatic and hydraulic
systems, clean the work area before
disassembly and keep all parts clean. Always
use caps and plugs on hoses, tubelines and
ports to keep dirt out. Dirt can quickly damage
the system.

I–2003–0888

A

N–17293

1

2

C

P–13727

1

Service Manual

–10–45–

773 BICS Loader

Revised June 01

B

N–17294

1

BICS

™

 VALVE (Cont’d)

Check Valve

Loosen and remove the check valve (Item 1) [A].

Installation: Tighten the check valve to 20 ft.–lbs. (27
Nm) torque.

Inspect and clean the screen (Item 1) [B] on the end of
the check valve.

Inspect the check valve for damage. Replace the O–rings
and back–up washers before installation.

Replace the check valve if necessary.

Lock Valve

There are two lock valves on the BICS valve, lift lock valve
(Item 2) [A] and tilt lock valve (Item 3) [A].

Loosen and remove the lock valve (Item 1) [C] from the
valve.

Installation: Tighten the lock valve(s) to 25 ft.–lbs. (34
Nm) torque. Replace all the O–rings and back–up
washers before installation.

Inspect the lock valve(s) for damage.

Replace the lock valve(s) if necessary.

A

N–17271

2

3

1

–10–46–

Service Manual

773 BICS Loader

Revised June 01

B

P–13728

1

C

N–17295

1

BICS

™

 VALVE (Cont’d)

BICS

™

 Valve Solenoid

Loosen the mounting nut (Item 1) [A] at the solenoid.

Remove the mounting nut (Item 1) [B], O–ring (Item 2)
[B], coil (Item 3) [B], O–ring (Item 4) [B].

Remove the solenoid cartridge (Item 5) [B] from the
valve.

Installation: Tighten the cartridge to 20 ft.–lbs. (27 Nm)
torque.

Inspect the solenoid cartridge (Item 1) [C] for damage.

Replace all the O–rings and back–up washers before
installation.

Replace the solenoid cartridge as needed.

A

N–17271

1

C

N–17299

1

Service Manual

–10–47–

773 BICS Loader

Revised June 01

B

N–17298

1

2

3

4

5