24 · GLOBE RM410 PISTON AIR MOTOR MANUAL| INCLUDING AUXILIARIES | ATEX Certified
Load adjustment
Because of standard wear of the liner on the brake shoe there is a possibility to adjust the holding
torque to its maximum. The next steps should be done to adjust the holding torque. When a new
brake unit is put into operation it may be necessary to reset the Adjustment until the brake shoes
become fully bedded in.
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With both locknuts – item 14 – loose, srew in each Adjuster – item 13 – until contact with
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spring is felt.
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From this position, with the motor running, without load, screw first one Adjuster until the motor
starts to labour indicating the brake shoe is in contact with the brake wheel. From this positi-
on unscrew the Adjuster with 1/4 turn or more until the motor is running at a constant speed
indicating the brake shoe is not in contact with the brake wheel. After this screw the opposite
Adjuster until the motor starts to labour labour indicating the brake shoe is in contact with the
brake wheel. From this position unscrew the Adjuster with 1/4 turn or more until the motor is
running at a constant speed indicating the brake shoe is not in contact with the brake wheel.
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With this procedure both brake shoe’s are just free of the brake wheel.
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From this position screw in each Adjuster at a time with 1/8 turn, repeat this until the motor
starts to labour.
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(A marker pen marking on a flat of the Adjuster will assist in this operation).
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From this position unscrew each Adjuster 1/6 turn at a time until the motor runs freely. This gives
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the maximum load setting for the brake, because in operation the brake shoes must release
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when air is applied to the pistons.
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After setting the brake lock the Adjusters with locknut item 14.
Remember each Adjuster must be altered the same amount to give equal
operation to the brake shoes.
During operation the brake shoe liner will wear which results in a reduction of the holding
torque. To compensate this loss of holding torque the next procedure must be followed:
