New Diodes Need To Be Installed On Certain 206B And 212B Excavators Caterpillar


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New Diodes Need To Be Installed On Certain 206B And 212B Excavators [HEBE1404]
OPERATOR STATION
CONTROL GP-DIRECTION & SPEED
New Diodes Need To Be Installed On Certain 206B And 212B Excavators
1.1. Problem
2.1. Affected Product - Model & Identification Number
3.1. Parts Needed
4.1. Action Required
5.1. Service Claim Allowances
6.1. Parts Disposition
7.1. Rework Procedure
8.1. Locate, Replace, And Add Diodes
9.2. Replacement of 4 Diodes 8U8044 in The Right Hand Side Console
10.2. Replacement of 1 Diode Under The Operator Platform
11.2. Adding 2 New Diodes
AVSpare: Confidential Yellow

Problem

The travel speed control lock may not disengage; this can lead to difficulties in stopping the machine. Only machines equipped with the 8U6281 automatic travel speed control are concerned.

Affected Product
Model & Identification Number

206B (9BF1-533)

212B (3PJ1-522)

Parts Needed

Dealers need to order parts for this program.

4 - 8U8044 diodes
3 - 8U8045 diodes

Action Required

See the attached Rework Procedure.

Service Claim Allowances

NOTE: This is a 2-hour job.

Parts Disposition

Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.

NOTE: MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.

Attach.

(1-Rework Procedure)

Rework Procedure

Locate, Replace, And Add Diodes

ITEM 1 Schematic which shows the five (5) Diodes which need to be replaced and the two (2) Diodes which need to be added.

ITEM 1

Replacement of 4 Diodes 8U8044 in The Right Hand Side Console

ITEM 2-A Location of the Diodes and how to access them.

ITEM 2-B Shows the four Diodes to be replaced.

ITEM 2-C Photograph of the location of the Diodes to be replaced by the 4 - 8U8044 Diodes.

ITEM 2-A

ITEM 2-B

ITEM 2-C

Replacement of 1 Diode Under The Operator Platform

ITEM 3-A Location of the Harness on which the Diode needs to be replaced.

The Harness is located on the right hand side under the Operator Platform.

ITEM 3-B Illustrates the exact location of the Diode to be removed and replaced.

NOTE: You need to remove a part of the Harness protective cover to access to the Diode. This 1 - 8U8045 Diode needs to be soldered.

ITEM 3-C Photograph showing location of Harness and Diode.

ITEM 3-A

ITEM 3-B

ITEM 3-C

Adding 2 New Diodes

ITEM 4Shows the location on the machine where the T-Mode Solenoid and the automatic Travel Speed Solenoid are situated.

ADD THE 2 - 8U8045 DIODES AS SHOWN UNDER ITEM 1

ITEM 4

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