2013/06/17 Caterpillar

Excavator:

345D (S/N: DPA1-UP; BYC1-UP; HLC1-UP; RGD1-UP; RAE1-UP; YEE1-UP; NEG1-UP; RGG1-UP; EEH1-UP; KFH1-UP; RAJ1-UP; MLK1-UP; NLM1-UP; JKN1-UP; L5R1-UP; FES1-UP; PBT1-UP; BYW1-UP; LKY1-UP)

349D (S/N: JGB1-UP; WTD1-UP; GKF1-UP; NNF1-UP; PZG1-UP; KLH1-UP; RBJ1-UP; MEN1-UP; KHS1-UP)

374D (S/N: PJA1-UP; PAP1-UP; PAS1-UP; PAX1-UP)

390D (S/N: WAG1-UP; BYP1-UP; WAP1-UP; WBT1-UP; KCZ1-UP)

Mobile Hydraulic Power Unit:

345D MHPU (S/N: P5D1-UP)

349D MHPU (S/N: DKN1-UP)

365C MHPU (S/N: GSZ1-UP)

374D MHPU (S/N: JNZ1-UP)

390D MHPU (S/N: M1M1-UP)

The shaft seal for the cooling fan drive group has been improved with new seal material to provide longer service life than the former shaft seal. Refer to table 1.

Illustration 1	g03334566
Shaft Seal Location (1) Fan drive group (2) Shaft seal

Illustration 2	g03334057
New Shaft Seal (3) Location of identification number

The improved shaft seal can be identified by number XP01650-E0A shown on the seal body. Refer to illustration 2.

Illustration 3	g03334260
Fan Drive Group (4) Former fan drive group (5) Added groove (6) New fan drive group

The fan drive group with the improved shaft seal can be identified by the groove around the drive case. Refer to illustration 3.