Tension spring rückmatic left 1637 AL-KO

The rückmatik tension spring serves to return the so-called thumb of the automatic reversing system of the wheel unit AL-KO 1637 (inner drum diameter 160 mm). The spring is for the wheel unit on the left side of the trailer (behind the driver). The hook on one side of the spring is inserted into the thumb hole of the automatic alignment system, the other straight end of the spring is inserted into the intersection in the brake shield.

The spring has a significant influence on the correct functioning of the reverse automatic and the entire braking system.

The total length of the spring is 41.5 mm (+/- 1 mm).