BRACE GP-BULLDOZER 7T7577 - Caterpillar

Caterpillar: Confidential Yellow
SERVICE LETTER EXTENSION - FEBRUARY 27, 1987 - PS4133 - PSP FOR IMPROVED MODULATION IN BACKHOE STICK, BOOM AND SWING AND LOA DER LIFT IMPLEMENTS ON 416, 426 & 428 BACKHOE LOADERS - MAILED US AND CANADA, CACO, COSA, LIMITED CFEL
  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.
SERVICE LETTER EXTENSION U-120 A-48 E-48.1 O-63 The Termination Date has been extended for the following Service Letter. Change the Termination Date to February 29, 1988. February 27, 1987 - PS4133; Product Support Program For Improved Modulation In Backhoe Stick, Boom And Swing And Loader Lift Implements On 416, 426 And 428 Backhoe Loaders