Updated Transmission Software Is Available for Certain 986H Machines{3168, 7490, 7610, 7620} Caterpillar

Wheel Loader:

986H (S/N: L8S1-UP)

Introduction

This Special Instruction contains the procedures needed to update transmission software for certain 986H Wheel Loaders. Do not perform any of the procedures in this document until completely reading and understanding this publication.

Safety Section

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DO NOT OPERATE OR WORK ON THIS MACHINE UNLESS YOU HAVE READ AND UNDERSTAND THE INSTRUCTIONS AND WARNINGS IN THE OPERATION AND MAINTENANCE MANUALS. FAILURE TO FOLLOW THE INSTRUCTIONS OR HEED THE WARNINGS COULD RESULT IN INJURY OR DEATH. CONTACT ANY CATERPILLAR DEALER FOR REPLACEMENT MANUALS. PROPER CARE IS YOUR RESPONSIBILITY.

Required Parts

Transmission Fill Calibration Procedure

After downloading the required software from Table 1, begin following the calibration procedure.

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Illustration 1	g03883724

1. Select Service - > Calibrations

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Illustration 2	g03883741

2. Select"Transmission Fill Calibration" and press the "Start" button.

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Illustration 3	g03883751

3. Set the preconditions as per the instructions and press the "Next" button to start calibration procedure.

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Illustration 4	g03883763
Calibrating Clutch # 1

4. When conditions required to start calibration procedure are satisfied, required condition check box will display RED tick mark, and auto calibration procedure will start.

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Illustration 5	g03883831
Calibrating Clutch # 2

5. After clutch 1 is successfully calibrated, calibration procedure automatically starts with clutch 2.

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Illustration 6	g03883844
Calibrating Clutch # 3

6. After clutch 2 is successfully calibrated, calibration procedure automatically starts with clutch 3.

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Illustration 7	g03883853
Calibrating Clutch # 4

7. After clutch 3 is successfully calibrated, calibration procedure automatically starts with clutch 4.

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Illustration 8	g03883862
Calibrating Clutch # 5

8. After clutch 4 is successfully calibrated, calibration procedure automatically starts with clutch 5.

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Illustration 9	g03883877
Calibrating Clutch # 6

9. After clutch 5 is successfully calibrated, calibration procedure automatically starts with clutch 6.

Result of Calibration

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Illustration 10	g03883904
Case 1: Successful calibration

1. If all the clutches are calibrated successfully, calibration success massage will be displayed. Acknowledge by clicking "Finish" button.

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Illustration 11	g03883907
Case 2: Calibration done with calibration limit warning (1) (Action to be taken) Acknowledge the Error Message (2) At limit warning acknowledgment

2. If the calibration is completed, but has warnings, the figure (1) message will be displayed. Acknowledge by clicking "More" button. Clutch (es) getting calibrated at limit will be displayed in figure (2) message. Click "Ok" button to acknowledge. No Further action is required, machine is OK to operate.

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Illustration 12	g03883990
Case 3: Calibration failed (3) (Action to be taken) Refer troubleshooting guide for error code number and how to fix error (s). (4) Error Message

3. If calibration fails, figure (3) message will be displayed. Acknowledge by clicking "More" button. Further action required, refer to troubleshooting guide for error code number and how to fix error (s).