120H and 135H Motor Graders Hydraulic and Steering System Drawbar Caterpillar


Drawbar
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120H and 135H Motor Graders Hydraulic and Steering System [SENR8558]
IMPLEMENTS
DRAWBAR GP
120H and 135H Motor Graders Hydraulic and Steering System Drawbar



Illustration 1g00040772

Top View

(1) Torque for five bolts ... 700 ± 40 N·m (520 ± 29 lb ft)




Illustration 2g00593229

Section A-A

(2) Thickness of 8X-8409 Shim ... 0.80 mm (.031 inch)

(3) Thickness of 8X-8408 Shim ... 0.25 mm (.010 inch)

(4) Thickness of 153-7383 Shim ... 0.12 mm (.005 inch)

As required, use 8X-8409 Shim (2), 8X-8408 Shim (3) and 153-7383 Shim (4) to achieve the following end play with face (7). ... 0.60 ± 0.20 mm (.024 ± .008 inch)

(5) Mating surfaces must be free of paint and lubricant.

(6) Torque for five bolts ... 500 ± 65 N·m (370 ± 48 lb ft)




Illustration 3g00593239

Detail of Circle Adjustment




Illustration 4g00593233

Section B-B

(8) Adjust the eight setscrews in order to achieve Dimension (C) between the circle (13) and the pinion (12). ... 4.3 + 2.5 - 0.5 mm (.17 + .10 - .02 inch)

(9) Torque for eight nuts ... 200 ± 30 N·m (148 ± 22 lb ft)

Note: Hold setscrews (8) when you are tightening nuts (9) .

(10) Thickness of 2G-6793 Shim ... 0.76 mm (.030 inch)

(11) Thickness of 2G-6794 Shim ... 0.25 mm (.010 inch)

As required, use 2G-6793 Shim (10) and 2G-6794 Shim (11) to obtain the maximum clearance at Dimension (A). ... 0.5 mm (.02 inch)

Note: The circle must be able to rotate completely without causing the circle drive motor to stall at 13800 kPa (2000 psi).

With the circle in contact with the front shoes, adjust the setscrews on the rear shoes in order to obtain the following maximum clearance at Dimension (B). ... 0 mm (0 inch)

Note: Hold the setscrews when you are tightening the nuts.




Illustration 5g00593236

Side View

(14) Torque for twelve bolts ... 475 ± 60 N·m (350 ± 44 lb ft)

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