5-10t Internal Combustion Counterbalance Forklift Truck Operation & Maintenance Manual
5.4.1 Wheel Brake (For 5-7t Trucks) (Refer to Fig 5-8.)
The wheel brake for 5-7t trucks only has one brake wheel cylinder and the two ends of its piston rod
contact the upper ends of the primary and secondary brake shoes, respectively. The lower ends of the
primary and secondary brake shoes are in mutual contact with the two ends of clearance adjuster, and
pressed on the brake bottom plate by spring and pressure spring.
The automatic clearance adjusting device takes effect during backward brake of forklift truck in
general, namely the adjusting lever automatically turn the gear on the adjuster by one tooth, when
clearance is big, for the clearance to be maintained at 0.4-0.6mm after adjustment. Refer to Fig 5-7
for the turning direction during gear adjustment.
As there are two forms of 5-7t wheel brake, there are two types of materials used for rubber cups of
brake wheel cylinder: namely oil-resisting rubber is used for the rubber cup in the form of power
brake, while the rubber cup for the vacuum power form is made of leather or synthetic leather.
Double attention shall be paid during replacement of parts.
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