D353 INDUSTRIAL & MARINE ENGINES Caterpillar

Filter bypass valve to open at pressure difference of ... 15 ± 3 psi(105 ± 20 kPa)

Cooler bypass valve to open at pressure difference of ... 35 ± 3 psi(240 ± 20 kPa)

(1) 6F8007 Spring for bypass valve for the filter:

Length under test force ... 2.438 in.(61.93 mm)

Test force ... 5.20 to 6.10 lb.(23.1 to 27.2 N)

Free length after test ... 3.625 in.(92.08 mm)

Outside diameter ... .813 in.(20.65 mm)

(2) 8M3182 Spring for bypass valve for the cooler:

Length under test force ... 2.50 in.(63.5 mm)

Test force ... 8.92 lb.(39.7 N)

Free length after test ... 3.61 in.(91.7 mm)

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