2014/10/15 Caterpillar

Motor Grader:

14M (S/N: B9J1-UP; R9J1-UP)

Description of Change: An improved lubrication lines group is now used on the machines listed above. The improved lines group has a new hose assembly with new clamping location. The new design will provide extended service life.

Adaptable To:

Illustration 1	g03731291

New 456-9132 Hose As (1) replaces the former 307-0718 Hose As in the 282-8866 Lubrication Lines Gp

New 456-9132 Hose As is adaptable to machines R9J1-1353 and B9J1-1450 and effective in production with machines R9J1354-UP and B9J1451-UP.

Use the following rework procedure in order to update 282-8866 Lubrication Lines Gp on the above adaptable machines:

Rework Procedure

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Illustration 2	g03731131

1. Remove 307-0718 Hose As (A), 5P-9085 Clip (B), 8T-4121 Hard Washer (C), and 8T-4191 Bolt (D) from the lubrication lines group as shown in Illustration 2. Save 5P-9085 Clip (B), 8T-4121 Hard Washer (C) and discard all other parts.

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Illustration 3	g03731183

2. Remove former boss (3) .

3. Remove the paint surface all around the former boss for welding.

4. Grind and flush all the former welded surfaces all around the former boss. Refer to Illustration 3.

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Illustration 4	g03731150
(E) 72.4 mm (2.85 inch) (F) 70.6 mm (2.78 inch) (W1) 5 mm (0.2 inch) all around fillet weld

5. Locate and weld boss (3) as per the dimension shown in Illustration 4. Refer to Special Instruction, REHS1841, "General Welding Procedures" for the proper cleaning and welding procedures.

6. To protect from corrosion paint boss (3) and surrounding area after welding.

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Illustration 5	g03731207

7. Install hose assembly (1) using 5P-9085 Clip (B) and 8T-4121 Hard Washer (C) that were saved in Step 1, and new bolt (2). Refer to Illustration 5.

8. For proper routing rotate elbow on top of the articulation pin as shown in Illustration 5.

Note: Ensure that no contact is present between the hose assembly and top plate of the rear frame.