PRODUCT SUPPORT PROGRAM FOR REWORKING THE STICK CYLINDER HEAD SEALS AND CYLINDER ASSEMBLY ON CERTAIN 324D, 324E, 326D, 326D2, AND 326F MEDIUM EXCAVATORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REWORKING THE STICK CYLINDER HEAD SEALS AND CYLINDER ASSEMBLY ON CERTAIN 324D, 324E, 326D, 326D2, AND 326F MEDIUM EXCAVATORS

Usage:

TEBE3548-00

Show/hide table

19Nov2015

U-620

A-446

D-539

O-536

Show/hide table

After Failure Only	PRODUCT SUPPORT PROGRAM FOR REWORKING THE STICK CYLINDER HEAD SEALS AND CYLINDER ASSEMBLY ON CERTAIN 324D, 324E, 326D, 326D2, AND 326F MEDIUM EXCAVATORS
5458		PS53079

Show/hide table

NOTE:	Caterpillar’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to Caterpillar.
NOTE:	This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS53079" as the Part Number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.

Show/hide table

NOTE:

The information supplied in this service letter may not be valid after the termination date of this program. Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.

Show/hide table

TERMINATION DATE

30Nov2017

PROBLEM

Show/hide table

The existing stick cylinder head seal can leak/fail under high loading conditions on certain 324D, 324E, 326D, 326D2, and 326F Medium Excavators. If the existing head seal fails, it is typically due to deflection of 350-9336 Cylinder Assembly flange, causing the O-Ring and back-up ring to extrude through the sealing joint.

AFFECTED PRODUCT

Show/hide table

Model	Identification Number
324D	JZR01453-01710
324D L	DFP01299-01396 GPK00244-00362 TSN00588-00675
324D LN OEM	M4A00128
324E	JCZ00116-00154
324E L	KTE00173-00204 PNW00834, 837, 839, 845-1617 TLF00229, 232-523
324E LN	LDG00374-00682
326D 2	KGY00161-00323 REC00141-00197, 199, 202-203, 205-206, 208-212
326D 2L	JFL00124-00146 MGW00241-00313 NBX00123-00132 XAM00261
326D L	PJM00235-00565
326F	SGK00151
326F L	WGL00178-00752 XFK00189-00191
326F LN	HCJ00121-00124 TMR00164

PARTS NEEDED

Show/hide table

Qty	Part Number	Description
1	4560204	KIT-SEAL
1	4892563	CYLINDER AS
1	OIL_BULK	HYDRAULIC OIL - 20L
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 1% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.

ACTION REQUIRED

Show/hide table

Disassemble the cylinder group and replace the existing 350-9336 Cylinder Assembly with a new higher strength 489-2563 Cylinder Assembly. Replacement of all seals in the cylinder group is required.

Refer to the Disassembly and Assembly, for your machine, for removal and installation instruction for replacing the cylinder assembly and seals.

Show/hide table

SERVICE CLAIM ALLOWANCES

Show/hide table

Product smu/age whichever comes first	Caterpillar		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
0-5000 hrs, 0-30 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%