G3500 Engines Caterpillar

Illustration 1	g00986172
Typical example

Note: Lubricate the bores for the O-ring seals with engine oil.

(1) Oil pressure switch

Normal contact position below deactuation pressure ... closed

Actuation pressure ... 275 ± 30 kPa (40 ± 4 psi)

Minimum deactuation pressure ... 245 kPa (35 psi)

Torque ... 22 ± 3 N·m (16 ± 2 lb ft)

Operating temperature ... −40 to 121 °C (−40 to 250 °F)

(2) Screw

Torque ... 1.7 ± 0.3 N·m (15 ± 3 lb in)

(3) Reducer bushing

(4) Connector

Use Teflon tape on the threads of bushing (3) and connector (4).

(5) Prelube pump

Flow at 1750 rpm and 345 kPa (50 psi) of pressure ... 3.8 L/min (1 US gpm)