DISC-TYPE SERVICE BRAKE CONTROL 7D9820 - Caterpillar

Difference in pressure at which the bypass valve will open ... 262 21 kPa (38 3 psi)(1) Torque for the plug, bypass valve ... 47 7 N m (35 5 lb ft)(2) Torque for the plug pressure tap ... 47 7 N m (35 5 lb ft)(3) 9M1986 Spring:Length under test force ... 25.4 mm (1.00 in)Test force ... 111 9 N (24.9 2.0 lb)Free length after test ... 47.2 mm (1.86 in)Outside diameter ... 12.7 mm (.50 in)C (4) Torque for nut ... 15 5 N m (11 4 lb ft)C (5) Torque for plug ... 105 9 N m (75 7 lb ft)