HYDRAULIC PUMP ASSEMBLY 3J8041 - Caterpillar

Caterpillar: Confidential Yellow
SERVICE LETTER SUPPLEMENT FOR JUNE 10, 1989 SL - PSP FOR EXCESSIVE AIR SIDE PLUGGING OF FOLDED CORE RADIATORS IN CER TAIN IT18, IT18B, 1T28, 1T28B TOOLCARRIERS; AND 916, 926 - 926E LOADERS - PS0391 - MAILED US AND CANADA, CACO, COFA, CFEL, 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-201 A-141 AU-128 E-123 O-157 Some information needs to be changed in the Service Letter which follows: June 10, 1989 (Revised July 1990) - PS0391; Product Support Program For Excessive Air Side Plugging Of Folded Core Radiators In Certain IT18, IT18B, IT28, IT28B Toolcarriers; And 916, 926/926E, And 936/936E Loaders Under the heading Service Claim Allowances, in two places, change the age limitations from 0-24 mo to 0-36 mo and from 25-36 mo to 37-48 mo.