PRODUCT SUPPORT PROGRAM FOR REWORKING THE TRAVEL BRAKE HOSE COUPLINGS ON CERTAIN M300C WHEELED EXCAVATORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REWORKING THE TRAVEL BRAKE HOSE COUPLINGS ON CERTAIN M300C WHEELED EXCAVATORS

Usage:

SEBE9490

February 8, 2006
U-52
O-47

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*before or* *after failure*	PRODUCT SUPPORT PROGRAM FOR REWORKING THE TRAVEL BRAKE HOSE COUPLINGS ON CERTAIN M300C WHEELED EXCAVATORS
5057		PS41973

NOTE: This Program can be administered either before or after failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS41973" as the Part number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and use "T" as the SIMS Description Code. If administered after failure, use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.

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.

TERMINATION DATE

February 28, 2008

PROBLEM

A small population of M300C-series machines from Grenoble production may have incorrectly assembled travel brake hose couplings with insufficient torque to the mounting bolts. If installed incorrectly the joint can be damaged and will fail resulting in a hydraulic leak (Refer to Illustration 1).

Illustration 1

AFFECTED PRODUCT

Group 1

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Model	Identification Number
M313C	H2A256-259, 266

Group 2

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Model	Identification Number
M315C	H2B189, 195-196

*Group 3***

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Model	Identification Number
M316C	H2C197-207, 209-217
M318C	H2D259, 261-281, 283-286, 288-291, 295

Group 4

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Model	Identification Number
M322C	H2E252-260, 262, 265
M318C MH	H2F128-129
M322C MH	H2G247

PARTS NEEDED

Group 1

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Qty	Part Number	Description
2	1P3704	SEAL
1	1245222	BOLT
4	1274996	FLANGE-HALF
6	2001806	BOLT-SOCKET
1	2160577	HOSE AS
1	2406968	HOSE AS

Group 2

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Qty	Part Number	Description
2	1P3704	SEAL
1	1245222	BOLT
4	1274996	FLANGE-HALF
6	2001806	BOLT-SOCKET
1	2155054	HOSE AS

1	2406970	HOSE AS

Group 3

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Qty	Part Number	Description
2	1P3704	SEAL
1	1245222	BOLT
4	1274996	FLANGE-HALF
6	2001806	BOLT-SOCKET
1	2007499	HOSE AS
1	2465863	HOSE AS

****Group 4****

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Qty	Part Number	Description
2	1P3704	SEAL
1	1245222	BOLT
4	1274996	FLANGE-HALF
6	2001806	BOLT-SOCKET
1	2107268	HOSE AS
1	2126753	HOSE AS

ACTION REQUIRED

See the attached Rework Procedure.

SERVICE CLAIM ALLOWANCES

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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
0-6000	100%	4.0	0	0	0	0
NOTE: This is a 4.0 hr job for Group 1, Group 2, Group 3, and Group 4.

PARTS DISPOSITION

Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.

Attach. (1-Rework Procedure)

Rework Procedure

The hydraulic hoses (216-0577 & 240-6968 for M313C, 215-5054 & 240-6970 for the M315C, 200-7499 & 246-5863 for the M316C & M318C, and 210-7268 & 212-6753 for the M322C, M318C MH & M322C MH) have to be removed from the Valve GP-Brake Control (269-5119 for the M313C and 245-8676 for the M315C, M316C, M318C, M322C, M318 MH, and M322C MH) to inspect the coupling and flanges to insure that they are not damaged. If there is visual damage to them, they must be replaced.

Please refer to the correct Disassembly and Assembly Manual for the safety procedures prior to removing the hydraulic hoses from the travel brake motor.

M313C (H2A) RENR9203

M315C (H2B) RENR9203

M316C (H2C) RENR9205

M318C (H2D & H2F) RENR9207

M322C (H2E & H2G) RENR9213

Remove the eight bolts that attach the two hoses to the Valve GP-Brake Control (refer to Illustration 2). Inspect the hose flanges and couplings. If damage is seen on the hose flanges replace with the same part number. If the couplers are damaged replace with the same part number. If any damage is seen replace the Seal Rectangular (1P-3704).

Illustration 2

Reinstall the hoses to the Valve GP-Brake Control using the 6 longer socket head bolts (200-1806) and the 2 shorter socket head bolts (124-5222) in the locations identified in Image 3. The 2 shorter bolts go into locations 6 & 7 in Image 3.

Tighten the 8 bolts according to the sequence (1 ? 8) shown in Image 3.