PRODUCT SUPPORT PROGRAM FOR REPLACING CONNECTING ROD BOLTS ON CERTAIN 793F OFF-HIGHWAY TRUCKS Caterpillar


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PRODUCT SUPPORT PROGRAM FOR REPLACING CONNECTING ROD BOLTS ON CERTAIN 793F OFF-HIGHWAY TRUCKS [UEBE1081]
BASIC ENGINE
PISTON & ROD GP
PRODUCT SUPPORT PROGRAM FOR REPLACING CONNECTING ROD BOLTS ON CERTAIN 793F OFF-HIGHWAY TRUCKS
UEBE1081-02

27Jul2020
(Revised 02Oct2020)


E250
N01H
N020

 

Before/After

 (Limited distribution) 
  

PRODUCT SUPPORT PROGRAM FOR REPLACING CONNECTING ROD BOLTS ON CERTAIN 793F OFF-HIGHWAY TRUCKS

1218 1214
PS46803
NOTE:

AVSpare’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 AVSpare.

NOTE:

This Program must 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 "PS46803" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. If administered after failure, use "96" as the Warranty Claim Description Code, and "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 AVSpare product analyst.

 
NOTE:

This Revised Service Letter replaces the 27Jul2020 (Revised 31Jul2020) Service Letter. Changes have been made to the Affected Product, Action Required, Parts Disposition, and added Rework Procedure.


TERMINATION DATE

31Jul2022

PROBLEM

Connecting rod bolts installed in certain C175-16 Engines may fail on certain 793F Off-Highway Trucks.

AFFECTED PRODUCT

Model Identification Number
793F  D3T00142, 146-147, 169-171

PARTS NEEDED

Qty

Part Number Description
4 3P0656 SEAL-O-RING
2 5H6733 SEAL-O-RING (After Failure Only)
1 5P4057 SEAL-O RING
4 6V1196 SEAL-O-RING
1 6V3968 SEAL-O-RING
1 8T0106 BOLT-HEX HEAD (After Failure Only)
1 8T0372 BOLT
1 20R2805 ROD GP-CONN (After Failure Only)
1 20R2806 ROD GP-CONN (After Failure Only)
1 1076280 SEAL-O-RING
1 1776911 SEAL-O-RING
1 2153198 SEAL-FUEL SYSTEM (After Failure Only)
4 2287089 SEAL-O-RING-ORFS (After Failure Only)
1 2300940 SEAL-PIP
2 2531238 RETAINER-PIN (After Failure Only)
2 2539950 SEAL-O-RING (After Failure Only)
1 2542054 RING-PISTON-OIL (After Failure Only)
1 2589925 GASKET-COMB (After Failure Only)
1 2589926 GASKET (After Failure Only)
4 2697885 SEAL-O-RING
1 2868928 RING-PISTON (After Failure Only)
4 3449285 RING
1 3618205 SEAL-FUEL SYSTEM (After Failure Only)
1 3618206 SEAL-FUEL SYSTEM (After Failure Only)
1 3618207 SEAL-FUEL SYSTEM (After Failure Only)
1 3708028 GASKET (After Failure Only)
1 3766458 BEARING-CONN ROD (After Failure Only)
1 3813969 SLEEVE (After Failure Only)
1 3917216 SEAL-PIP
1 3917217 SEAL-PIP
1 3924608 PIN-PISTON (After Failure Only)
2 4226176 SEAL-O-RING (After Failure Only)
96 4287386 BOLT AS
1 4714230 LINER-CYLINDER (After Failure Only)
1 4772235 PISTON AS (After Failure Only)
1 4772236 RING-PISTON (After Failure Only)
2 4983113 INSERT-BOLT (After Failure Only)
2 5216093 ELEMENT-LUBE OIL
2 5247818 SEAL-O-RING (After Failure Only)
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 32% 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

Refer to the attached Rework Procedure.

SERVICE CLAIM ALLOWANCES

Product smu/age whichever comes first
AVSpare
Dealer Suggested
Customer Suggested
Parts %
Labor Hrs%
Parts %
Labor Hrs%
Parts %
Labor Hrs%
0-6500 hrs,
0-24 mo 
100.0%
100.0%
0.0%
0.0%
0.0%
0.0%
 NOTE: This is a 52.0-hour job
If a rod bolt is found failed, an additional 8 hours is allowed to change the cylinder pack.



PARTS DISPOSITION

Hold all connecting rod bolts for a Parts Return Request (PRR). A Parts Return Request (PRR) will be issued to you through the Send-It-Back process after the claim is submitted. Make sure to list the service letter program number on the packing slip and include the closed work order paperwork. Handle all other parts in accordance with your Warranty Bulletin on warranty parts handling.

If a Parts Return Request (PRR) is not issued to you after 30 days through the Send-It-Back process, handle the parts in accordance with your warranty bulletin on warranty parts handling.
 
 
 


Rework Procedure


 
Replace all of the 428-7386 connecting rod bolts with new 428-7386 connecting rod bolts.

Each bolt should be marked per the instructions below prior to removal.

Each bolt should be removed and replaced one at a time.

Hold all connecting rod bolts that were removed. Refer to the Parts Disposition.

If a connecting rod bolt is found failed, replace the cylinder pack for the cylinder with a failed connecting rod bolt.

Refer to Disassembly and Assembly, M0080117 for cylinder pack removal and installation.
 
Each rod bolt head should be marked with a single dot by a paint pen to indicate the orientation to the front of the engine. See Image1.2.1.
Image1.2.1
 
Image1.2.1: Rod bolt position numbers for even and odd cylinders. Note front (forward, FWD) of engine direction and paint dot to indicate bolt orientation.
 
When a rod bolt is removed from the connecting rod, it should be marked with the cylinder number (CYL 1, CYL 2, etc etc) and position number (#1, #2, #3, #4, #5 or #6) by paint pen. See numbering scheme in Image1.2.1.

As examples, the bolt from position 5 in cylinder number 4 would be marked as CYL 4 ? #5. The bolt from position 1 in cylinder 15 would be marked CYL 15 ? #1
 
 

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