PIN 1737758 - Caterpillar

Caterpillar: Confidential Yellow
SERVICE LETTER SUPPLEMENT FOR APRIL 8, 1989 SL - PI3396 - NEW SPRINGS NEED TO BE INSTALLED IN THE UNIT INJECTORS ON CERTAIN 360 6, 3608, 3612, 3616 ENGINES - MAILED US AND CANADA, COFA, LIMITED BRAZIL, LIMITED CFEL, LIMITED COSA
  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.
U-94 A-69 AU-62 B-13.3 E-44.1 O-61.1 Some information needs to be changed in the Service Letter which follows: April 8, 1989 - PI3396; New Springs Need To Be Installed In The Unit Injectors On Certain 3606, 3608, 3612, and 3616 Engines Remanufactured Injectors need to be added to the Parts Need and Action Required sections of the Service Letter. Under the heading Parts Need, change the information to read as follows for injectors in parts stock. ***** Parts Stock ***** 1 - 7E5404 Spring (1 for each 7C7445, 7C3854, 0R5510, or 0R5738 Injector in the customer or dealer parts stock) Under the heading Action Required, change the information to read as followsfor injectors in parts stock. ***** Parts Stock ***** Use the attached procedure and tool list for the Affected Product as a guide. Replace the existing spring in each 7C7445, 7C3854, 0R5510, or 0R5738 Injector in customer or dealer parts stock with a new 7E5404 Spring.