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B. Travel adjustment of brake pedal
Loosen the locking nut (7) on pull rod adjusting fork (6) and turn brake pull rod
adjusting fork to change the length of the pull rod (8) until the displacement (from the highest
position of the brake pedal to friction disc assembly being completely braked) of the brake
pedal is 85-95mm. When the left and right pedal are locked together, stepping on the pedals
can simultaneously brake the left and right wheels; after adjustment, lock it with nut (7).
(Fig.4-6)
If the above adjusting range can not perfectly make the free state and brake state out,
they can be adjusted through increasing or reducing the brake cover gaskets (11) between
brake cover (12) and brake case (10). If the brake travel is too small, increase the gaskets; if
the brake travel is too big, reduce or remove the gaskets. (Fig.4-6)
C. Brake yaw motion adjustment
Refer to the adjustment of shoe brake
5. Adjustment of front axle
1) Axial clearance adjustment of front wheel bearings
The normal axial clearance between front wheel bearings (8) and (9) is 0.1-0.2mm(Fig.4
-7). During operation, when the clearance is more than 0.4mm, the front wheel will swing to
left or right during walking; and the bearings are easily broken by shock load, so adjustment
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