Daktronics Scoreboard Dual Hoist User Manual

Page 18

System Maintenance

To adjust the brake, loosen the locknut on the gearbox shaft until the Bronze Bearing and the

Belleville Washer spin with a small amount of finger pressure.

Run the hoist DOWN approximately two feet so that the secondary brake is engaged and then

tighten the locknut to 70 inch/pounds with a torque wrench. Run the hoist down and check

for noise. If there is still noise, tighten the nut 1/8 of a turn and then run the hoist down again.

Repeat until the noise has ceased.

Do not tighten the nut to where there is no more adjustment available

Check brake pad wear

The brake pads should be checked for wear on

a routine basis. The pads may wear unevenly

so both sides need to be checked. Measure

the distance between the brake disc and

the ratchet wheel (both sides). The distance

(space) should be greater than .065". If .065"

or less the brake pads need replacement at the

factory.

After making the adjustment and checking the

Brake Pads, re-install the cover making sure to

fit the cover into the slots on the backbone.

Bronze Bearing

Belleville Washer

Brake pad thickness

measure here (2 places)

if .065” or LESS REPLACE PADS