Rework To Prevent Scoring Of Rods In Hydraulic Cylinder Groups For Rear Struts
Usage:
OFF-HIGHWAY TRUCKS789B (7EK),
793 (3SJ),
793B (1HL),
793C (4AR) OFF-HIGHWAY TRUCKS
793 (3SJ),
793B (1HL),
793C (4AR) OFF-HIGHWAY TRUCKS
Problem:
Cylinder rod scoring has occurred some rear suspension cylinder groups. The seal land groove in 106-0904 and 106-1807 Heads is causing interference with the cylinder rod.
The 106-0904 Head is used with 4T-4844 and 6E-1101 Suspension Cylinder Groups.
The 106-1807 Head is used with 106-1801 and 106-3722 Suspension Cylinder Groups.
Solution:
The seal land groove, in both 106-0904 and 106-1807 Heads, can be reworked to eliminate scoring of the cylinder rods.
See Illustration 1 (Former Groove Dimensions) and Illustration 2 (New Groove Dimensions) for rework specifications.
The 106-1807 Head will be canceled and replaced when a new head is available.
ILLUSTRATION 1.
ILLUSTRATION 2.
COPYRIGHT 1998 CATERPILLAR ALL RIGHTS RESERVED
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