PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE SWIVEL GROUP ON CERTAIN MH3049 AND MH3059 MATERIAL HANDLERS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE SWIVEL GROUP ON CERTAIN MH3049 AND MH3059 MATERIAL HANDLERS

Usage:

TEBE1434-01

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27May2014

(Revised 09Sep2014)

U-292

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*Priority*	PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE SWIVEL GROUP ON CERTAIN MH3049 AND MH3059 MATERIAL HANDLERS
5060		PI32347

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NOTE:

Caterpillar’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to Caterpillar.

NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI32347" as the Part Number and "7751" as the Group Number, "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. Exception: If the repair is done after failure, use "PI32347" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.

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NOTE:

The information supplied in this service letter may not be valid after the termination date of this program. Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.

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NOTE:	This Revised Service Letter replaces the 27May2014 Service Letter. Changes have been made to the Problem, Affected Product, Owner Notification, and Rework Procedure to clarify how to calibrate the Upper Lower Orientation Sensor.

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COMPLETION DATE	TERMINATION DATE
30Nov2014	31May2015

PROBLEM

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The swivel group needs to be reworked on certain MH3049 and MH3059 Material Handlers. The electric connector group in the swivel group can become loose causing the upper lower oreintation sensor to read incorrectly. If unnoticed the operator may be able to lower cab in a position that would result in damage to the cab riser linkage or cab. If problem is uncorrected the electric connector group may eventually work its way off of the hydraulic swivel, resulting in a machine down failure.

AFFECTED PRODUCT

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Model	Identification Number
MH3049	HPB00201-00202, 205, 209, 212, 215, 217, 219, 222
MH3059	RBR00201-00208, 211, 214-216

PARTS NEEDED

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Qty	Part Number	Description
1	0058615	NIPPLE-PIPE
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 45% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.

ACTION REQUIRED

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Refer to the attached Rework Procedure.

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OWNER NOTIFICATION

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Owners in the following countries will receive the attached Owner Notification:
US
Canada

SERVICE CLAIM ALLOWANCES

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Caterpillar		Dealer Suggested		Customer Suggested
Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
100%	100%	0%	0%	0%	0%

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NOTE: This is a 1.5-hour job

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PARTS DISPOSITION

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

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

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EXAMPLE COPY OF OWNER NOTIFICATION

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

PRIORITY - PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE SWIVEL GROUP

MODELS INVOLVED - CERTAIN MH3049 AND MH3059 MATERIAL HANDLERS

Dear Cat Product Owner:

The swivel group needs to be reworked on the products listed below. The electric connector group in the swivel group can become loose causing the upper lower oreintation sensor to read incorrectly. If unnoticed the operator may be able to lower cab in a position that would result in damage to the cab riser linkage or cab. If problem is uncorrected the electric connector group may eventually work its way off of the hydraulic swivel, resulting in a machine down failure. You will not be charged for the service performed.

Contact your local Cat dealer immediately to schedule this service. The dealer will advise you of the time required to complete this service.

If you are no longer the owner of this product(s), please contact your local Cat dealer so that our records can be updated. Please refer the dealer to their Service Letter dated 27May2014 when scheduling this service.

We regret the inconvenience this may cause you, but urge you to have this service performed as soon as possible to prevent unscheduled downtime.

Caterpillar Inc.

Identification #(s)

Attached to 27May2014 Service Letter

Rework Procedure

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1. Park the machine on a level surface and lower all implements to the ground. Before completing the attached Rework Procedure; Please review the safety section in the Operation and Maintenance Manual for the machine.

2. Disconnect harness assemblies (1) and (2). Refer to Image1.1.1.

Image1.1.1

3. Remove harness connectors (3) and (4). Refer to Image1.2.1.

Image1.2.1

4. Pull harness assemblies (1) and (2) through plate (5). Refer to Image1.3.1.

Image1.3.1

5. Remove nut (6) and bracket (7). Refer to Image1.4.1.

Image1.4.1

6. Disconnect harness assembly (8). Refer to Image1.5.1.

Image1.5.1

7. Disconnect harness assemblies (9) and all cable straps. Refer to Image1.6.1.

Image1.6.1

8. Disconnect harness assembly (10) and all cable straps. Refer to Image1.7.1.

Image1.7.1

9. Loosen set screws (14) and twist connector group (11) off threads. Refer to Image1.8.1.

Image1.8.1

10. Loosen set screws (12) and remove fitting (13).

Note: If no parts are damaged, apply blue Loctite 243 to the threads of both sides of fitting (13) and install the fitting.

11. When installing the electric connector group, tighten fitting (13) to the hydraulic swivel, using standard torque values.

12. Tighten the seven set screws on the electric connector group and hydraulic swivel to a specified torque of 9 N.m (80 lb in).

13. Install, connect, and secure all wiring removed during the removal process.

14. Install nut (6) and bracket (7). Refer to Image1.13.1.

Image1.13.1

15. Calibrate the "Upper Lower Orientation Sensor". Follow the instructions on "Maintenance Display 2" screen of the monitor to "Zero Upper Lower Orientation". Refer to "Maintenance Display 2" in the Operation and Maintenance Manual.