134178-4320 ZEXEL 9 443 611 726 BOSCH PLUNGER-AND-BARREL ASSY 9443611726 1341784320 1156320510

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 October 20, 1993 Service Letter. Changes have been made to the Action Required.
Termination Date
January 31, 1994Problem
Certain 7N0449, 1W5829, 4W1819, 4W8483, 7W3710 and 1010060 Nozzle Assemblies need to be removed from Parts Stock because they may crack at the braze joint.
Action Required
Remove all 7N0449, 1W5829, 4W1819, 4W8483, 7W3710 and 1010060 Nozzle Assemblies from Parts Stock with a date code of D--3, E--3, F--3, or G--3. Refer to the Illustration below for the location of the date code. The date codes will appear as a letter followed by three numbers. The letter denotes the month, the first two numbers denote the day of the month, and the number 3 denotes the year. For example, D223 is the date code for April 22, 1993.
Location of Date CodeService Claim Allowances
Submit one claim for all 7N0449, 1W5829, 4W1819, 4W8483, 7W3710 and 1010060 Nozzle Assemblies removed from Parts Stock.
US and Canadian Dealers Only - When submitting a Parts Stock claim use 99Z00007 in the Product Identification Number Field.
Parts Disposition
U.S. and Canadian Dealers
Return all 7N0449, 1W5829, 4W1819, 4W8483, 7W3710 and 1010060 Nozzle Assemblies that are removed from Parts Stock and a copy of the claim to:
CaterpillarInc.
Attn:HowardJenkel/PI7324
Warehouse#4Docks7thru10
8201N.University
Peoria,IL 61615
All Other Dealers
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.