PSP FOR FAILED ONE-WAY CLUTCH COMPONENTS ON 988B LOADERS EQUIPPED WITH 2Z0989, 2X8670, 2Z8786, 2Z8858, 2Z8859 OR 2Z8860 LOC K-UP CONVERTER ARRANGEMENTS - PS0465 - MAILED US AND CANADA, COSA, LIMITED COFA Caterpillar

PSP FOR FAILED ONE-WAY CLUTCH COMPONENTS ON 988B LOADERS EQUIPPED WITH 2Z0989, 2X8670, 2Z8786, 2Z8858, 2Z8859 OR 2Z8860 LOC K-UP CONVERTER ARRANGEMENTS - PS0465 - MAILED US AND CANADA, COSA, LIMITED COFA

Usage:

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Caterpillar: Confidential Yellow

PSP FOR FAILED ONE-WAY CLUTCH COMPONENTS ON 988B LOADERS EQUIPPED WITH 2Z0989, 2X8670, 2Z8786, 2Z8858, 2Z8859 OR 2Z8860 LOC K-UP CONVERTER ARRANGEMENTS - PS0465 - MAILED US AND CANADA, COSA, LIMITED COFA

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.


U-132
AU-87.1
O-102
3101   PS0465
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 "PS0465" as
Part Number, "7755" as Group Number, and "96" as
Description Code.

Termination Date

June 30, 1991

Problem

Components in the torque converter on certain 988B Wheel Loaders may fail.
High cycling job applications can exert excessive loads on the one-way clutch
components of the torque converter. These loads can cause the carrier, cam,
rollers, and thrust plates to become worn which can result in poor machine
performance.

Affected Product

Model Identification Number
988B 50W00001-74999
If equipped with a 2Z0989, 2Z8670, 2Z8786, 2Z8858, 2Z8859 or 2Z8860 Lock-Up
Converter Arrangement.

Parts Needed

1 - 4B9371 Seal
1 - 5F3999 Seal
1 - 7G0141 Ring
1 - 4H6730 Seal
1 - 1L7205 Bearing
2 - 8M4433 Seal
1 - 9N1609 Seal
1 - 3P2573 Race
1 - 3P2574 R&R Assembly
1 - 8S3371 Ring
1 - 1T0132 Seal
1 - 1T0136 Seal
1 - 1T0141 Cam
13 - 1T0680 Spring
1 - 1T0771 Impeller - (Use only if required.)
1 - 1T0782 Turbine - (Use only if required.)
2 - 1T0786 Bearing
1 - 1T0794 Ring
2 - 1T0887 Disc Assembly - (Use only if required.)
3 - 1T1011 Shim
3 - 1T1012 Shim
1 - 1T1222 Gasket
2 - 1T1315 Plate - (Use only if required.)
1 - 1T1356 Ring
1 - 1T1359 Hub - (Use only if required.)
2 - 1T1395 Plate
13 - 1T1410 Roller
1 - 1T1815 Carrier Assembly
1 - 1T1834 Stator - (Use only if required.)
1 - 6V9191 Bearing - (Use only if required.)
1 - 9W6990 Ring
2 - 6Y5888 Ring

Action Required

After failure remove and replace the damaged parts, replace all bearings and
seals. See the Illustration.
Assemble the converter using the 988B Service Manual and the Supplementary
Product Support Literature For 988B Equipped With A Lock-Up Torque Converter
(SEBF0573-01).
ITEM NO. QTY PART NO. Description
1 1 1T0794 RING-SEAL METAL
2 1 1T0771 IMPELLER-CONV (Only if required.)
3 1 1T0867 PLATE-REINF
4 1 1T1227 GEAR-PUMP DRIVE
5 1 1T1224 HUB-IMPELLER
6 1 9W3136 RING-RETAINING
7 1 1T1659 SLEEVE AS
8 1 3P2573 RACE-BRG INNER
9 2 1T0897 RING-RETAINER
10 1 1T1657 CARRIER-BEARING
11 2 6Y5888 RING-SEAL
12 1 1T1220 CARRIER-RING
13 1 1T1856 RETAINER-BEARING
14 8 3S0127 BOLT-12 POINT HD
15 1 4B9371 SEAL-LIP TYPE
16 1 1T0136 SEAL-O RING
17 1 1T1006 RETAINER
18 1 8B5144 BOLT
19 1 1T1223 SHAFT-OUTPUT
20 3 1T1011 SHIM
21 3 1T1012 SHIM
22 1 9Z9429 ROTOR-SENSOR
23 1 9Z9427 FLANGE
24 1 1L7205 BEARING-BALL
25 1 1T1222 GASKET
26 1 1T1815 CARRIER AS
27 1 3P2574 RACE&RLR AS
28 1 1T1221 CARRIER-RING
29 1 9W6990 RING-SEAL
30 8 5P5855 BOLT-12 POINT HD
31 1 5F3999 SEAL-O RING
32 36 0S1588 BOLT
33 36 1T0689 WASHER
34 1 1T1452 HOUSING AS
35 1 1T0782 TURBINE-CONV (Only if required.)
36 1 1T0896 RING-RETAINING
37 1 6P9553 PLATE-CL BACKING
38 2 1T1315 PLATE-CLUTCH (Only if required.)
39 2 1T0887 DISC AS-CLUTCH (Only if required.)
40 1 7G0141 RING-SEAL
41 1 1T1426 PISTON-LOCKUP CL
42 1 1T0804 RING-CLAMP
43 1 1T1423 CAM-FREEWHEEL
44 1 1T1359 HUB-TURBINE (Only if required.)
45 3 1T0795 RING-RETAINING
46 2 1T1395 PLATE-SIDE
47 2 1T0806 RETAINER-BEARING
48 6 0L1351 BOLT
49 1 6V9191 BEARING-BALL (Only if required.)
50 1 1T1236 PILOT-FLYWHEEL
51 1 1T1617 PLATE-RETAINER
52 2 8S4724 BOLT
53 1 1T0895 RING-RETAINING
54 1 1T1616 WASHER-SPRING
55 1 1T1356 RING-SEAL
56 1 1T0847 PIN-RACE LOCK
57 2 1T0807 RACE-THRUST BRG
58 2 1T0786 BEARING-THRUST
59 18 8M2530 BOLT-12 POINT HD
60 13 1T1410 ROLLER-FREEWHEEL
61 1 8S3371 RING-SEAL
62 1 1T1834 STATOR-CONVERTER (Only if req'd.)
63 13 1T0680 SPRING-FREEWHEEL
****** IMAGE: SEBE4341.00001.001
CAPTION: Illustration 1 - Location of Parts

Service Claim Allowances

Product Caterpillar Dealer Suggested Customer Suggested
smu/age Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs.
(D/N) (Cost)  (C/L) (Sell)
0-4000 100% 20 0 0 0 0
0-48 mo
4001-8000 33 1/3% 10 50% 10 0 0
49-96 mo
NOTE: This is a 20-hour job.
NOTE: If there has been a previous repair, part age will apply. Retain
a copy of the previous repair invoice in the dealer's records for
audit purposes, and specify repair date and machine hours in the
"Additional Comments" section of the warranty claim.

Parts Disposition

Any parts removed (with the exception of cores used for Caterpillar
Remanufactured parts) can be rendered useless and scrapped immediately upon
completion of the repair.