Vibration of the Right Side Access Door During Machine Operation on Certain 336E and 336E H Excavators{7273} Caterpillar

Excavator:

336E (S/N: KED1-UP; YCE1-UP; TEG1-UP; GTJ1-UP; YEP1-UP; CMR1-UP; BZY1-UP)

336E H (S/N: RZA1-UP; SSL1-UP)

Introduction

The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.

Problem

The right side Access door could vibrate during machine operation. The vibration is due to lack of support.

Solution

If vibration is heard from the right side door, an additional support plate can be installed. The following rework procedure creates an additional support plate in order to eliminate the vibration.

Illustration 1	g03418141
Support plate installed on the machine

Rework Procedure

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Illustration 2	g03418142

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Illustration 3	g03418146

1. Drill a 14 mm (0.55 inch) diameter hole. Illustrations 2 and 3 show the location of the hole on the side cover.

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Illustration 4	g03418173

2. Fabricate a support plate. Illustration 4 shows the detailed dimensions.

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Illustration 5	g03418190

3. Install the support plate with two 135-8573 Bolt As (1) and one 8T-4244 Nut (2) .