PISTON AS 1540872 - Caterpillar

(S/N: EAB1-149; DGF1-172; BRW1-647)313D2 (S/N: FAP1-175; GAP1-447; LCY1-UP)318D2 (S/N: JEB1-132; HBP1-224)320D2 (S/N: ZBD1-325; ZBH1-287; DNS1-216; TDZ1-161)323D2 (S/N: FLC1-131; TDT1-176)326D2 (S/N: MZH1-254; XAM1-271)330D2 (S/N: ZBF1-245; SZK1-212)336D (S/N: MPL1-577; JBT1-4908)336D2 (S/N: WDC1-1375; YCF1-814; FAJ1-447; HBK1-145; NBN1-242; FBT1-250)336E (S/N: YCE1-780; FJH1-1886; JRJ1-517; TMZ1-439)336F (S/N: TZA1-553; RKB1-2144; RBC1-306; DKF1-1; ZBJ1-147; NBS1-437; KFT1-308; WTZ1-250)340D (S/N: JTN1-585)340D2 (S/N: JEE1-324; HHK1-447)Reference: Special Instruction, M0075782, "Improved Procedure for the Installation of Swing Gear and Bearing Dust Seals" contains the instructions for the new procedure.Description Of Change: An improved procedure is now used for installing swing gear and bearing dust seals on certain Excavators. The procedure improves swing gear grease retention and prevents dust contamination.Adaptable To: The improved procedure is adaptable to the products within the listed serial numbers, and effective with all products after the listed serial numbers.The Special Instruction is available through the normal literature distribution system. The publication can also be found on the Caterpillar Service Information System (SIS).