RING-RETAINING 8H0350 - Caterpillar

REBE5475-01
30Nov2009
(Revised 15Dec2009)
U-411
A-332
D-363
Before/After
PRODUCT SUPPORT PROGRAM FOR INSTALLING ORIFICE PLATES ON CERTAIN G3520C LANDFILL ENGINES
1380 1063 PS42995
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 "PS42995" as the Part Numberand "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.
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.
This Revised Service Letter replaces the 03Nov2009 Service Letter. Changes have been made to the Parts Needed and the Rework Procedure.
TERMINATION DATE
30Nov2011
PROBLEM
Certain G3520C 1200 RPM Landfill Engines are experiencing high inlet manifold temperatures that lead to detonation. The coolant flow through the first stage 236-4256 Aftercooler Core is low causing marginal heat rejection to the JW. The lack of coolant flow leads to increased temperatures of the air/fuel mixture as it enters the intake manifold.
AFFECTED PRODUCT
Model Identification Number
G3520C GZJ00161-00417
HAT00102, 200-211
PARTS NEEDED
Qty
Part Number Description
2 4N1320 GASKET-ADAPTER
1 6V1454 SEAL-O RING
4 6V5066 SEAL-O RING
1 6V5139 SEAL-O-RING
2 7N4945 GASKET
3 8T1919 SEAL-O-RING
1 9Y6893 GASKET
1 2006434 TUBE AS
2 3053447 SEAL
1 3235835 PLATE-ORIFICE
1 3235836 PLATE-ORIFICE
1 3304907 ELBOW
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 9% 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
If the G3520C Landfill Engine is experiencing detonation, new orifice plates and some additional Separate Circuit Aftercooler Circuit (SCAC) parts need to be installed. Refer to the attached Rework Procedure.
SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-40000 hrs,
0-84 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
This is a 3.0-hour job
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Rework Procedure
1) In a suitable container, drain the engine coolant. The engine coolant will be reused at the end of this procedure.
2) Remove the 244-0525 Tube. The 261-7953 Joint Seal will be reused. The 6V-5139 O-ring seal will be replaced with a new o-ring.
3) Remove the 265-5221 Tube. The 261-7952 Seal will be reused. The 8T-1919 O-ring will be replaced with a new o-ring.
4) Remove the 236-5186 tube. The 261-7952 Seal will be reused. The 6V-5066 O-ring will be replaced with a new o-ring.
5) Remove the 324-6857 Tube Assembly and the 265-5220 Elbow-Blk Inlet. Remove the 9Y-6892 Elbow from the 265-5220 Elbow-Blk Inlet.
6) Replace the 265-5220 Elbow-Blk Inlet with the 330-4907 Elbow-Blk Inlet and attach the 9Y-6892 Elbow. Use a 9Y-6893 Gasket at this connection.
7) Add the 323-5835 Plate-Orifice to the proper surface of the 330-4907 Elbow. Place a 7N-4945 Gasket on each side of the orifice plate. Add a 6V-5066 O-Ring to the 330-4907 Elbow.
8) Replace the 324-6857 Tube Assembly