BRACKET 5D8652 - Caterpillar

TECHNICAL INFORMATION BULLETIN SEPTEMBER 01, 2004
EXCAVATORS 330C (MCA, JAB, NAB, JCD, GAG, BTM), 330C L (CYA, HAA, KDD, RBH, JNK, MKM, SCN, CAP, GKX, DKY), 330C FMST (B3M),
330C FMHW (B4N),
330C LN (CGZ) EXCAVATORS
Component Code(s) 5458SUBJECT: THE STICK CYLINDER MAY LEAK HYDRAULIC FLUID ON CERTAIN
EXCAVATORS
PROBLEM:
Hydraulic fluid may leak from the hydraulic cylinder for the stick. The leaks occur on the rod assembly at the head end of the hydraulic cylinder.
SOLUTION:
If hydraulic fluid leaks from the 191-5551 Stick Cylinder Gp, replace the former 204-2848 U-Cup Seal with a new 191-5646 U-Cup Seal. The new seal is made from a material that is softer than the former seal. The new seal is available in the new 231-6844 Seal Kit. The new and the former components are listed in Table 1. The location of the new seal is shown in Illustration 1.
New Seal For The 191-5551 Stick Cylinder Gp
Qty New Part Number Description Former Part Number
1 191-5646 U-Cup Seal 204-2848
1 231-6844 Seal Kit 215-9987Table 1.
Illustration 1. 191-5551 Stick Cylinder Gp
(B) 191-5646 U-Cup Seal
(C) Backup Ring For The U-Cup Seal
COPYRIGHT 2004 CATERPILLAR
ALL RIGHTS RESERVED