PRODUCT SUPPORT PROGRAM FOR REPLACING THE 6P-7709 BEARING CAGE ON CERTAIN 621H/621K/623H/623K/627H/627K/631H/631K WHEEL TRACTOR-SCRAPERS AND 773G/775E/775G OFF-HIGHWAY TRUCKS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE 6P-7709 BEARING CAGE ON CERTAIN 621H/621K/623H/623K/627H/627K/631H/631K WHEEL TRACTOR-SCRAPERS AND 773G/775E/775G OFF-HIGHWAY TRUCKS

Usage:

TEBE5493-02

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04Jan2017

(Revised 10Apr2017)

U-6

A-6

D-6

O-6

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After Failure Only	PRODUCT SUPPORT PROGRAM FOR REPLACING THE 6P-7709 BEARING CAGE ON CERTAIN 621H/621K/623H/623K/627H/627K/631H/631K WHEEL TRACTOR-SCRAPERS AND 773G/775E/775G OFF-HIGHWAY TRUCKS
3150 3160 3030		PS53377

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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 "PS53377" 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.

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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.

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NOTE:	This Revised Service Letter replaces the 04Jan2017 (Revised 18Jan2017) Service Letter. Changes have been made to the Affected Product.

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TERMINATION DATE

31Jan2019

PROBLEM

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The existing 6P-7709 Bearing Cage can fail in the transmission on certain 621H/621K/623H/623K/627H/627K/631H/631K Wheel Tractor-Scrapers and 773G/775E/775G Off-Highway Trucks. If the existing sleeve bearing fails, it can increase the amount of debris in the system.

AFFECTED PRODUCT

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Model	Identification Number
*****Group 1*****
773G	JWS00162-00389 MWH00151-00422
773G OEM	T5S00101-00126 T5T00101-00106
775E OEM	DTE00101-00127, 501-583, 596-601
775G	MJS00273-00592 RFM00251-00936
775G OEM	T5F00101-00103 T5W00101-00112

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*****Group 2*****
621H	DBK00101-00131 EAZ00101-00125
621K	WTA00101-00119 WTL00101-00102
623H	DBF00102-00175 EJD00101-00105
623K	WTB00101-00231 WTM00101-00113
627H	DBW00102-00348 LCT00101-00115
627K	WTC00101-00265 WTN00101-00116
631K	WTR00101-00105 WTW00100-00104
637K	WTS00100-00117 WTT00101 WTX00100

PARTS NEEDED

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Qty	Part Number	Description
*****Group 1*****
1	1M4169	RING-SEAL
1	1S6478	RING-SEAL
1	1S9496	RING-SEAL
1	1S9497	RING-SEAL
1	1S9498	RING-SEAL
6	2H2525	PIN-SPRING
5	2L3650	PIN-SPRING
8	2M5685	BEARING-NEEDLE
12	2S0669	BEARING-NEEDLE
1	3S0142	RING-SEAL
3	3S1278	RING-SEAL
2	3S1282	RING-SEAL
1	3S1283	RING-SEAL
15	3S2708	PIN-SPRING
2	4H8380	PIN-SPRING
1	4S5805	SEAL-O-RING
8	5M0578	BEARING-NEEDLE
8	5M2051	BEARING-NEEDLE
3	5M5018	BEARING-ROLLER
4	5M6126	BEARING-NEEDLE
1	5S4442	BEARING-SPL BALL
1	6B6863	PIN-SPRING
2	6F0155	RING-METAL SEAL
1	6H7201	RING-METAL SEAL
4	6Y5888	RING-SEAL
2	7G2176	DAMPER-BOLT
12	8E8299	DISC-THRUST
14	8E8304	DISC-THRUST
16	8E8308	DISC-THRUST
8	8E8311	DISC-THRUST
1	8M1112	SEAL-O RING
2	8S3373	RING-SEAL
2	8S3521	RING-SEAL
1	9G9116	BEARING-SLEEVE
1	9H3360	SEAL-O RING
1	9M1997	BEARING-BALL
16	9M4355	DAMPER-BOLT
1	2147568	SEAL-O-RING-STOR
1	4869750	CAGE AS
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.
*****Group 2*****
1	1M4169	RING-SEAL
1	1M8649	RING-RETAINING
3	1M8652	RING-RETAINING
10	1M9691	SPRING
1	1S7347	RING-SEAL
2	1S9496	RING-SEAL
1	2K5967	RING-RETAINING
8	2S0669	BEARING-NEEDLE
1	3D2907	RING-RETAINING
1	3D8823	BEARING-SLEEVE
1	3S0109	PLATE-THRUST
4	3S1278	RING-SEAL
2	3S1281	RING-SEAL
2	3S1282	RING-SEAL
1	3S1283	RING-SEAL
1	3S1284	RING-SEAL
1	3S2619	RING-RETAINER
4	3S2660	SPACER
17	3S2708	PIN-SPRING
5	4M1641	DOWEL-REACTION
5	4M1677	DOWEL-REACTION
16	4M3915	BEARING-CAGED
5	4M8871	DOWEL-REACTION
30	4M9592	SPRING
1	4S5804	SEAL
1	4S5805	SEAL-O-RING
3	5M2054	BEARING-NEEDLE
6	5M5018	BEARING-ROLLER
1	5P6230	BEARING-SPL BALL
1	5S4442	BEARING-SPL BALL
1	5S7779	RING-RETAINING
2	6F0155	RING-METAL SEAL
5	6F6678	SPRING
1	6H7201	RING-METAL SEAL
1	6P1037	RING-RETAINER
4	6Y5888	RING-SEAL
8	8E8300	DISC-THRUST
18	8E8304	DISC-THRUST
16	8E8307	DISC-THRUST
1	8H3981	RING-RETAINING
1	8M1112	SEAL-O RING
3	8M5248	SEAL-O-RING
1	8M6541	SEAL
2	8P1958	WASHER-THRUST
2	8P8744	RING-SEAL EXT
1	8S3373	RING-SEAL
16	9M4355	DAMPER-BOLT
2	1067799	BEARING-BALL
1	2042460	BEARING-SLEEVE
1	4869750	CAGE AS
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

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Replace the existing 6P-7709 Bearing Cage Assembly with a new 486-9750 Bearing Cage Assembly.

For Off-Highway Trucks - refer to KENR9962, Disassembly and Assembly, for additional information.

For Wheel Tractor-Scrapers - refer to UENR4602, Disassembly and Assembly, for additional information.

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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%
*****Group 1*****
0-7000 hrs, 0-48 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
7001-10000 hrs, 49-60 mo	33.0%	50.0%	0.0%	0.0%	50.0%	50.0%

NOTE: This is a 100.0-hour job for Group 1

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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%
*****Group 2*****
0-7000 hrs, 0-48 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
7001-10000 hrs, 49-60 mo	33.0%	50.0%	0.0%	0.0%	50.0%	50.0%