3406 INDUSTRIAL & MARINE ENGINES Caterpillar

(1) 4N8150 Spring for bypass valve for oil filter:

Length under test force ... 2.175 in.(55.25 mm)

Test force ... 17.0 ± 1.3 lb.(76 ± 5 N)

Free length after test ... 3.69 in.(93.7 mm)

Outside diameter ... .81 in.(20.6 mm)

Filter bypass valve to open with a pressure difference of ... 37 ± 3 psi(255 ± 20 kPa)

(2) Torque for stud:

Put 9S3263 Thread Lock Compound on threads of the stud and tighten the studs to ... 60 ± 10 lb. ft.(80 ± 14 N·m)