NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Caterpillar


Circle Drawbar

Usage:

Remove Circle Drawbar

NOTE: The circle drawbar can be removed with the circle assembly and blade either removed or installed.

1. Lower the blade to the ground.

2. Disconnect shaft (1) for the circle reverse and fasten it to the frame of the machine.

3. Disconnect the oil lines (2) from the front of the machine.

4. Fasten a hoist to the drawbar.

5. Disconnect the link (4) for the circle centershift and fasten it to the frame.

6. Disconnect the links (3) and (5) for the blade lift.

NOTE: Keep all shims with the same links for correct installation.

7. Remove the bolts (6) and socket cap. Make identification of the shims for use during assembly.

8. Remove the circle drawbar. Weight of the circle, blade and drawbar as a unit is 3400 lb. (1543 kg). Drawbar weight is 800 lb. (386 kg).

Install Circle Drawbar

1. Fasten a hoist and position the circle drawbar on the machine.


TYPICAL EXAMPLE

2. Install the cap on the ball and socket joint using the shims that were removed. Check the adjustment of the joint after the lift arms are installed.

3. Connect the links (3) for the blade lift and the link (1) for the circle centershift.

NOTE: Use the shims that were removed with the same link when installing.

4. Connect the oil lines at the front of the machine.

5. Connect the drive shaft (2) for the circle reverse.

6. Check circle drawbar and socket adjustment in the following way:

Lift the blade, then put a bar between the drawbar and the ball socket. Push the drawbar away from the socket, then remove the bar. Measure the clearance between the ball and cap. Use shims as needed to get a clearance no greater than .062 in. (1,57 mm).

Caterpillar Information System:

NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Circle Assembly And Blade
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Blade Sideshift Control
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Blade Assembly
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Blade Lift Drive Housings
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Blade Lift Arms
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Junction
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Hydraulic Tank
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Hydraulic Pump
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Power Cylinder
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Hydraulic Brake Master Cylinder And Power Cylinder
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Leaning Wheel Control
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Leaning Wheel Gear Box
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Circle Reverse Transfer Gear Housing
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Circle Reverse Gear Housing
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Ball And Socket Adjustment,
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Circle Centershift Rack
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Circle Centershift Housing
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Power Control Drive Shaft
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Power Control
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Scarifier Control
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Scarifier Frame And Drawbar
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS Scarifier Teeth
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