22
figure 2-28 figure 2-29
2.6.4 Operating trial for self-adjustor of clearance See figure 2-30
(1) Adjust diameter of brake hoof close to the regulation size first, rotate adjustor by pulling
adjusting bar, when releasing hand, adjusting bar return original place but adjustor gear doesn’t
rotate.
Notice: Even if when releasing hand, adjustor gear and adjusting bar return together, the
adjustor can still work normally.
(2) Please examine as follow if adjustor can’t act as introduced when pulling adjusting bar.
(a) Ensure adjusting bar, ejector pin, ejector pin spring and spring are all fixed.
(b) Check rebound spring of ejector pin and spring of adjustor, check adjuster gear for
running state and whether there is over wearing in mating surface. check if there is touching
between lever and gear. Replace damage parts.
figure 2-30
2.7 Adjusting for Brake pedal See figure 2-31(a)
(1) Shorting handspike
(2) Adjusting limit screw of pedal to make optimum height of pedal. See figure 2-31;
(3) Stretch handspike until the front end of handspike touch the piston ,then, unthread for 1 or
2 circle to make the free journey among 10mm-20mm.
(4) Tighten handspike nut and limit nut of pedal
