Product Support Program For Replacing The Joystick With Broken Centering Springs On Certain RT80 And RT100 Material Handlers Caterpillar

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.

NOTE: This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS0854" as the Part Number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.

NOTE: Although this Program is to be administered as described above on the Affected Product, parts should be removed from Parts Stock as soon as possible.

Termination Date

Problem

The centering spring (which brings the joystick back to a neutral position when released) can fail, allowing the joystick to fall in any direction on certain RT80 and RT100 Material Handlers. This may be preceded by the joystick feeling loose. If engagement occurs, the machine could function as if the joystick was intentionally moved to that position.

NOTE: Machines with serial numbers after the effective range may have had their joystick controllers replaced as a result of an earlier repair. Machines that fall into this category, may be eligible for this program. If a SIMS investigation confirms an earlier joystick controller replacement, and it fails in the manner described in this service letter, then administer this program. You must then reference this situation in the "story" portion of the claim.

Affected Product
Model & Identification Number

RT80 (1GJ1-1134)

RT100 (1GJ1-1134)

Parts Needed

1 - 1261168 Joystick

NOTE: Early machines may exhibit a compatibility problem when a later version joystick controller is matched with early version logic. If this problem should occur, please contact Caterpillar Service Engineering for technical support at:

NACD dealers - (216) 357-2380 or (216) 298-1441

COSA dealers - 14556783 or 14556756

Action Required

Parts Stock

Remove all 838886 and 8I5577 Joysticks from Parts Stock.

NOTE: New joysticks can be identified by an 'R' etched below the front buttons.

Affected Product

Remove the 838886 or the 8I5577 Joystick and install a new 1261168 Joystick. Refer to Special Instructions SEHS6222 for calibration procedures.

Service Claim Allowances

Parts Stock

Submit one claim for all 838886 and 8I5577 Joysticks removed from Parts Stock.

Affected Product

NOTE: This is a 2 hour job.

Parts Disposition

NACD dealers should send all 8I5577 (Gaiter On Buttons) removed from inventory or from machines with the machine serial number, machine hours and joystick hours included to:

NOTE: All other parts should be handled in accordance with your Warranty Bulletin on warranty parts handling.

Dealers from all other subsidiaries should handle the parts in accordance with your Warranty Bulletin on warranty parts handling.