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 [RENR4161]
IMPLEMENTS
DRAWBAR GP
120H and 135H Motor Graders Hydraulic and Steering System Drawbar



Illustration 1g00101170

Top View

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




Illustration 2g00593157

Section A-A

(2) Thickness of 8X-8409 Shim ... 0.80 mm (0.031 inch)

(3) Thickness of 8X-8408 Shim ... 0.25 mm (0.010 inch)

(4) Thickness of 153-7383 Shim ... 0.12 mm (0.005 inch)

As required, use 8X-8409 Shim (2), 8X-8408 Shim (3) and 153-7383 Shim to achieve the following end play with face (6). ... 0.60 ± 0.20 mm (0.024 ± 0.008 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 3g00593158

Section B-B




Illustration 4g00867092

Detail of Circle Adjustment

(8) Adjust the setscrews in order to achieve Dimension (C) between the circle (13) and the pinion (12). ... 50.0 + 2.5 - 0.5 mm (1.97 + 0.10 - 0.02 inch)

(9) Torque for eight nuts ... 200 ± 30 N·m (150 ± 22 lb ft)

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

(10) Thickness of 6G-1915 Shim ... 0.76 mm (0.030 inch)

(11) Thickness of 6G-1914 Shim ... 0.25 mm (0.010 inch)

As required, use 6G-1915 Shim (10) and 6G-1914 Shim (11) to achieve the maximum clearance at Dimension (B). ... 0.5 mm (0.02 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 (A). ... 0.8 mm (0.03 inch)

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




Illustration 5g00593159

Side View

(14) Torque for 12 bolts ... 475 ± 60 N·m (350 ± 44 lb ft)

Information System:

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12H, 140H, 143H, 160H and 163H Motor Graders Hydraulic and Steering System Control Valve (Blade Lift)
143H and 163H Motor Graders Hydraulic and Steering System Sideshift Control Valve
143H and 163H Motor Graders Hydraulic and Steering System Circle Drive Control Valve
120H and 135H Motor Graders Hydraulic and Steering System Control Valve (Blade Tip)
143H and 163H Motor Graders Hydraulic and Steering System Centershift Control Valve
143H and 163H Motor Graders Hydraulic and Steering System Articulation Control Valve