Underdrive Brake Inspection

Underdrive Brake Inspection

1. Measure free length underdrive brake piston return spring. If necessary, replace.
Underdrive brake piston return spring free length
Standard: 63.20 mm (2.49 in.)

NOTE: Do not apply excessive force when measuring spring height.





2. Measure free length underdrive brake piston rod spring. If necessary, replace.
Underdrive brake piston rod spring free length
Standard: 17.50 mm (0.68 in.)