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[ZL1BBW]

Just pulled out of the shed a couple of rotors and control units I bought a few years ago.

Rotor # 1 works just fine with small dark brownish control box.

Rotor # 2 ah well, this has a more modern looking control box with left brake right buttons its top n bottom different colour's, BUT when I push the brake button its makes a very harsh more than buzzing sound, quite mechanical, and it does not rotate when I push the left or right button.

What am I doing wrong? or is it more than than me?

Thanks

[NA6O]

The brake solenoid will normally make an obvious hum since it runs on AC. When activated, the brake wedge will make a loud THWACK as it retracts. If it doesn’t, it’s stuck, or there’s a wiring problem.

Gary NA6O

[ZL1BBW]

The brake solenoid will normally make an obvious hum since it runs on AC. When activated, the brake wedge will make a loud THWACK as it retracts. If it doesn’t, it’s stuck, or there’s a wiring problem.

Gary NA6O

Thanks for replying.

This is certainly no hum, its much louder, probably like a non stop series of thwacks.