Usage:
776D (5ER),
784B (5RK) Tractors;
771D (6JR),
775D (6KR) Quarry Trucks;
769D (5TR),
773D (7ER),
777D (3PR),
785B (6HK),
789B (7EK),
793B (1HL),
793C (4AR) Off-Highway Trucks
- SUPPLEMENT: JUNE 14, 1999
Service Magazine SEPD0352, Article 29, Page 25, March 31, 1997; "New Transmission Harnesses With Revised Grounding Now Used To Increase Service Life"
Disregard this article and refer to Service Magazine SEPD0476, Article 17, Page 11 titled "Chassis And Cab Harnesses Must Be Replaced As A Set".
--------------- END SUPPLEMENT ---------------
- SUPPLEMENT: APRIL 13, 1998
Service Magazine SEPD0352, March 31, 1997; Article 29, Page 25; "New Transmission Harnesses WIth Revised Grounding Now Used To Increase Service Life" on 776D, 784B Tractors; 771D, 775D Quarry Trucks; 769D, 773D, 777D, 785B, 789B, 793B and 793C Off-Highway Trucks.
Additional information is required and should read as follows:
NOTE: Former part numbers cannot be mixed with new part numbers. When replacing either cab or chasis harness with a new part number, both harnesses must be replaced. After both harnesses have been replaced with the new part numbers, future servicing may replace harnesses indvidually.
--------------- END SUPPLEMENT ---------------
Reference: Service Magazine; October 30, 1995; Page 14-15; "New ICM Transmission Control (Actual Gear Switch) Is Available".
Description of Change: A new transmission chassis and cab wiring harnesses are now available for some off-highway trucks equipped with EPTC-II transmission control. The new harnesses have separate grounds to the new speed/gear position sensors and gear change solenoids. (See service magazine article referenced above).
Adaptable To: Effective harness numbers can be found below with effective truck model serial numbers for the new chassis and cab harnesses described above. The new harnesses are adaptable to all previous serial number trucks equipped with EPTC-II transmission control and the new 118-8471 Actual Gear Switch and 120-9288 Harness.
The harnesses listed below do not require use of 127-4872 Retrofit Adapter Harness to complete the retrofit of all earlier 784B Tractor; 785B, 789B, 793B Off-Highway Trucks with 118-8471 Actual Gear Switch and 120-9288 Harness as described in the service magazine article referenced above.
