Usage:
CONFIDENTIAL TIBU2679-00
TECHNICAL INFORMATION BULLETIN |
SEPTEMBER 24, 2003 |
OFF-HIGHWAY TRUCKS |
797B (JSM123-163) |
Component Code |
3160 |
SUBJECT: 192-9969 BEARING AND 192-9970 BEARING MAY HAVE BEEN MANUFACTURED INCORRECTLY
PROBLEM:
The 192-9969 Planet Bearing and 192-9970 Planet Bearing, used in the transmission of 797 Off-Highway Trucks, have been received with excessive bar skew. The bearing feature causes high thrusting forces and accelerated wear of thrust discs. The planet gears eventually mill through the thrust disc and into the planet carrier causing large amount of debris and contingent damage.
SOLUTION:
Replace the existing 192-9969 Planet Bearing and 192-9970 Planet Bearing with "documented parts". The 192-9969 Planet Bearing and 192-9970 Planet Bearing are now 100% inspected and marked on the cage bar with an identifying mark to indicate that they are conforming parts. Use only parts with such an identifying mark.
Illusation 1. Example of an identifying mark.
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