CYLINDER GP-BACKHOE BUCKET 1668141 - Caterpillar

Oil pressure difference that makes the oil filter bypass valve open ... 140 30 kPa (20 4 psi)Oil pressure difference that makes the oil cooler bypass valve open ... 125 30 kPa (18 4 psi)(1) 9L9188 Spring (oil cooler and oil filter bypass valve): Length under test force ... 43.2 mm (1.70 in)Test force ... 15.6 N (3.51 lb)Free length after test ... 57.9 mm (2.28 in)Outside diameter ... 11.18 mm (.440 in)(2) Oil filter bypass valve.(3) Torque for nuts that hold oil cooler core to oil cooler base (hand torque only) ... 22 3 N m (16 2 lb ft) If applicable, assemble gasket to oil cooler base with indexing point toward the front of the engine and in the up position.(4) Oil cooler bypass valve.Torque for studs that hold filters ... 68 7 N m (50 5 lb ft)