GASKET 5231635 - Caterpillar

TECHNICAL INFORMATION BULLETIN December 17, 2003
VIBRATORY COMPACTORS CB-534C (5HN713-Up)
CB-534D (EAA1-Up, FGH1-Up)
CB-634C (CBR550-Up)
CB-634D (CDF1-Up)
Component Code(s) 4050SUBJECT: DRUM DRIVE PLANETARY IN LARGE ASPHALT COMPACTORS
PROBLEM:
Some of the drum drive planetaries in the large double drums asphalt compactors are experiencing premature failures. Failure reports include gear failures, and loosening of the nut retaining the bearing preload.
Part Numbers Part Description
211-0251 Planetary Group
211-0252 Planetary Group
152-8297 Planetary Group
152-8299 Planetary Group
SOLUTION:
No interim solution is available at this time. In order to better determine the root cause of the failures, it is important to get failed drum drive planetary returned to the factory intact. In the event of a diagnosed drum drive planetary failure, take a SOS sample, remove the rear cover and visually inspect the condition of the inside of the planetary. If evidence of damage is present, replace the cover and contact Larry Andersen at Caterpillar Global Paving before disassembling the gearbox.
Contact
Larry Andersen
Service Engineer
Caterpillar Global Paving
PH: 763-493-1344
email: andersen_larry_j
COPYRIGHT 2003 CATERPILLAR
ALL RIGHTS RESERVED