2013/06/10 Caterpillar

Underground Articulated Truck:

AD30 (S/N: CXR1-UP; DXR1-551)

Description of Change: A rework procedure for the 217-6714 Guard As is now available. The rework procedure provides an extended service life for the 217-6714 Guard As .

Adaptable To: The rework procedure is adaptable to the following machines.

Procedure to Rework the Alternator Guard

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Illustration 1	g03389832
(1) 217-6714 Guard As

1. Remove 217-6714 Guard As (1) .

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Illustration 2	g03389302
(1) 217-6714 Guard As

2. Remove sections (A) in order to conform with the inner profile of 217-6714 Guard As (1) .

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Illustration 3	g03389301
(1) 217-6714 Guard As (B) 6 mm (0.25 inch)

3. Remove section (C) from 217-6714 Guard As (1) .

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Illustration 4	g03389816
(1) 217-6714 Guard As

4. Ensure 217-6714 Guard As (1) has continuous weld both sides on all joints. Refer to Illustration 4 and Table 2.

   Note: Ensure sufficient clearance for the bolt heads.

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   Table 2

   Item	Dimension
   W1	3 mm (0.10 inch) fillet weld

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Illustration 5	g03389831
(2) Bolt

5. Loosen five bolts (2) from the alternator guard mounting brackets.

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Illustration 6	g03389832
Typical example (1) 217-6714 Guard As

6. Install 217-6714 Guard As (1), leaving the bolts loose.

7. Tighten the bolts from Step 5 and Step 6 evenly in order to reduce stress to 217-6714 Guard As (1) .