Product Support Program For Installing An Automatic Ether Injection System (AEIS) On Certain 785 And 789 Trucks Caterpillar

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.

NOTE: This Program can be administered either before or after a failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS4582" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and use "T" as the SIMS Description Code. If administered after failure, use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.

NOTE: This Revised Service Letter replaces the November 5, 1991 Service Letter. Under the heading Parts Needed, a 3E6572 Film was added. The 3E6572 Film is to be used in place of the 9X6098 Film if equipped with AETA.

Termination Date

Problem

Certain 785 and 789 Trucks may experience problems during cold starts. An Automatic Ether Injection System (AEIS) can be installed to improve starting and combustion during cold startups and increase the service life of the engine.

Affected Product
Model & Identification Number

785 (8GB1-417)

789 (9ZC1-439)

Parts Needed

Action Required

If so equipped, remove the existing manual type ether injection system.

Follow the procedure in Special Instruction SEHS9293 "Installation of Automatic Ether Injection System (AEIS)" and install the Automatic Ether Injection System (AEIS).

Service Claim Allowances

NOTE: This is a 9-hour job.

Parts Disposition

Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.