Carriage Rotate Pins Can Be Protected From Damage By Adding A Restraint Caterpillar

Problem:

Carriage rotate pins have been damaged during operation.

Solution:

A restraint may be fabricated from two structural steel shapes as shown in Illustrations 1 and 2. The restraint is welded to the bottom of the carriage as shown in Illustration 3. The bolted on detail allows service of the carriage.

NOTE: Welds must conform to AWS class E7018 or E7028.

NOTE: This restraint may limit the function of the rotate carriage when the forks are closer than 178 mm (7.0 in) from the center of the carriage.

NOTE: Before adding the restraint to the carriage assembly ensure the carriage is shimmed properly.

Reference: RT50 SA, SEBU6390-02, "Rotate Carriage," page 97.

RT50, SEBU6390-02, "Rotate Carriage," page 97.

RT60, SEBU6390-02, "Rotate Carriage," page 97.

RTC60, SEBU6390-02, "Rotate Carriage," page 97.

RT80, SEBU6387, "Rotate Carriage," page 97.

RT100, SEBU6387, "Rotate Carriage, "page 97.

TH62, SEPD0335, Service Magazine, "New Assembly Procedure for Rotate Carriage Groups," page 13.

TH63, SEPD0335, Service Magazine, "New Assembly Procedure for Rotate Carriage Groups," page 13.

TH82, SEBU6865, "Rotate Carriage, "page 114.

Th83, "Rotate Carriage," page 114.

TH103, SEBU7017, "Rotate Carriage," page 109.

NOTE: The pin should be checked for straightness and replaced using information provided in Service Magazine, October 21 ,1996, "Pivot Pin is Now Serviceable in Fork Carriage Groups," page 15, (SEPD0329).

This repair may be implemented on the following rotate carriage groups.

Illustration 1. Detail 1.

Illustration 2. Detail 2.

Illustration 3. Restraint Assembly. 5P-8245 Washer (1). 7X-0325 Bolt. Dimension A is 4.0 mm (.16 in)

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