2011/05/11 Caterpillar

Engine:

G3516 (S/N: ZBA1-UP)

G3516 (S/N: CSZ1-UP)

G3516B (S/N: ZBB1-UP)

G3516B (S/N: CSC1-UP)

G3516B (S/N: ZBC1-UP)

G3516B (S/N: CME1-UP)

G3516B (S/N: CEY1-UP; 7EZ1-UP)

G3520B (S/N: CWD1-UP)

G3520B (S/N: GZP1-UP)

G3520B (S/N: BGW1-UP)

G3606 (S/N: 3XF1-UP; 4ZS1-UP)

G3608 (S/N: 4WF1-UP)

G3608 (S/N: BEN1-UP)

G3612 (S/N: BKE1-UP)

G3612 (S/N: 1YG1-UP)

G3616 (S/N: BLB1-UP)

G3616 (S/N: 4CG1-UP)

Power Module:

PMG3516 (S/N: CFD1-UP)

When you inspect the hydraulic actuator system, some oil leaking past the seals in the actuator is acceptable. Do not replace an actuator because of a small amount of leaking oil.

Illustration 1	g02556240
(1) 193-7879 Boot

Drain rubber boot (1) on the actuator linkage periodically.

The typical amount of leaking oil that is acceptable and the corresponding amount of time for the accumulation of the oil follows:

• One drop or less than one drop during 6 hours of operation

• Approximately 3.3 mL (0.112 oz) per 20 hours of operation

• Approximately 100 mL (3.4 oz) per 600 hours of operation