2010/12/14 Caterpillar

Motor Grader:

120H (S/N: CAF1-UP; 4MK1-UP; 5FM1-UP; 6NM1-UP; 6TM1-UP; 2AN1-UP; 6YN1-UP; 9YR1-UP; ALZ1-UP; 1241-UP)

120K (S/N: SZN1-UP; JAP1-UP)

12H (S/N: XZJ1-UP; CBK1-UP; 4XM1-UP; 5ZM1-UP; 8MN1-UP; 2LR1-UP; 4ER1-UP; 2GS1-UP; AMZ1-UP; 1251-UP)

12K (S/N: JJA1-UP; SZP1-UP)

135H (S/N: CBC1-UP; BDJ1-UP; 3YK1-UP; 7MM1-UP; 8WN1-UP; AMX1-UP)

140H (S/N: CCA1-UP; XZH1-UP; 2ZK1-UP; APM1-UP; 5HM1-UP; 8JM1-UP; 8KM1-UP; 9TN1-UP; 9ZN1-UP; 3AS1-UP; 1261-UP)

140K (S/N: JPA1-UP; SZL1-UP)

160H (S/N: ASD1-UP; 9EJ1-UP; XZK1-UP; 2FM1-UP; 3GM1-UP; 6WM1-UP; 9JM1-UP; CCP1-UP; 2HS1-UP)

160K (S/N: SZM1-UP; JBP1-UP)

An updated bar for the above Motor Graders is available. This will change the camber angle of the front wheels to zero degrees. This change will improve the life of the front tires in certain applications. The update involves installing new bearings into the updated bar before installing the bar into the machine.

Illustration 1	g01448428
(1) Former 103-9125 Bar (B) 1561.9 mm (61.49 inch)

Illustration 2	g01448459
(2) New 160-0504 Bar (C) 1545.0 mm (60.83 inch)

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Illustration 3	g01448594
(3) Bolts to mount

1. Remove the bolts (3) from the bar and save the parts.

2. Remove bar from front axle assembly. Block the wheels in order to keep the wheels stationary after the bar has been removed.

   Note: Use a suitable lifting device to remove the bar from the machine.

3. Install the 2G-8624 Bushings into the new bar. Use Tooling 198-9113 Seal Installer As and a suitable press to install the sleeve bearings. Be sure to apply a layer of grease inside the sleeve bearings.

4. Install the new bar into the machine. Alignment of the spindles may need adjustment in order to install the new bar. Use a large pry bar to lean one of the tires inward.

5. Use the bolts (3) that are saved in Step 1 to mount the bar. Tighten the bolts (3) to 215 ± 40 N·m (160 ± 30 lb ft).

6. Lubricate the joints with approved grease.