RING-RETAINING 8M0903 - Caterpillar

TEBE0730-01
09Dec2013
(Revised 20Dec2013)
U-617
Before/After
PRODUCT SUPPORT PROGRAM FOR UPDATING THE ENGINE SOFTWARE AND ADDING A SENSOR ON CERTAIN C27 PETROLEUM ENGINES
1408 1920 1917 1923 PS44119
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 "PS44119" 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 09Dec2013 Service Letter. Changes have been made to the Parts Needed.
TERMINATION DATE
31Dec2015
PROBLEM
Certain C27 Petroleum Engines operating with 424-8960 and 445-6700 Software or earlier versions can allow ice to accumulate in the intake manifold, during extended idle times in a extremely cold climate. If the existing fails it can/will cause a potential engine hydraulic lock condition and/or diesel oxidation catalyst failures.
AFFECTED PRODUCT
Model Identification Number
C27 NAR00100-00103, 107-160
PARTS NEEDED
Qty
Part Number Description
5 7K1181 STRAP-CABLE
1 2287101 SEAL-O-RING-STOR
1 3203061 SENSOR GP-PRESS
1 4460464 HARNESS AS-WRG
1 4479762 SFWR GP-A1000
1 4500340 SFWR GP-A1000
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
The engine software needs to be updated and a new sensor installed on certain C27 Petroleum Engines.
Replace 445-6700 Software or earlier versions with 450-0340
Replace 424-8960 software or earlier versions with 447-9762
Follow the attached rework procedure.
The new software features improved cold mode strategy for idling in extreme cold weather applications and an automated engine shut down feature if icing becomes excessive, in extreme cold weather conditions.
This will be identified by:
Event Code:
EID 1045-3, Engine Intake Manifold Pressure Low
SPN 102-1, Engine Intake Manifold Pressure Low
When shut down has occurred cycling key switch will clear the event, event will be logged in history.
The following restart procedure will need to be performed when code is present.
1) Inspect mixing manifold for ice accumulations
a. inspect with bore scope thru ether port
b. remove ATAAC hump hose for inspection
2) If ice is present remove ice by
a. removing manifold to dislodge ice
b. Bring ambient temp of engine/manifold above freezing point to allow
ice obstruction to melt
3) Ensure free rotation of engine by either:
a. manually rotating engine 360 degrees
b. bore scope all cylinders to ensure no water and or ice is present,
that would create hydro-lock condition
4) If engine will not rotate 360 degrees or ice/water has been
Identified:
a. If ice is present, ambient engine temperature will need to be
brought above freezing point to allow ice to dissipate. If water is
present and or ice has melted refer to Troubleshooting, C27 and C32 Industrial and Petroleum Engines,