2005/09/12 Caterpillar

Engine:

3508 (S/N: 95Y1-UP; 23Z1-UP; 68Z1-UP; 70Z1-UP)

3508B (S/N: 2BM1-UP; 3DM1-UP; 4GM1-UP; 7SM1-UP; 6PN1-UP; 1TW1-UP; 2HW1-UP; 3DW1-UP)

3512 (S/N: 49Y1-UP; 24Z1-UP; 65Z1-UP; 67Z1-UP)

3512B (S/N: 7HM1-UP; 8EM1-UP; 8RM1-UP; 4TN1-UP; 6WN1-UP; 1PW1-UP; 2GW1-UP; 4AW1-UP)

3516 (S/N: 25Z1-UP; 27Z1-UP; 71Z1-UP; 73Z1-UP)

3516B (S/N: 6HN1-UP; 7RN1-UP; 8CN1-UP; 8KN1-UP; 9AN1-UP; 1NW1-UP; 2FW1-UP; 3CW1-UP; 4BW1-UP)

Pumper:

SPF343 (S/N: 6RZ1-UP; 3KD1-UP)

SPS343 (S/N: 8ZZ1-UP)

SPT343 (S/N: 5XZ1-UP)

Make sure to clean the shaft for the engine oil scavenge pump's gear. Before installing the gear onto the shaft, clean the shaft and clean the gear's bore with isopropyl alcohol. Follow the proper tightening procedures for the installation of the gear onto the shaft.

Reference: Engine's Specifications

Illustration 1	g01202039
Engine oil scavenge pump (1) Shaft (2) Gear