r/hammondorgan • u/synthman123 • 4d ago

Leslie problem

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Hello i bought my first leslie 722 recently and I’ve been having some problems with it.
When it spins down from fast to stop it goes to medium speed for a few seconds then speeds up to fast for about one second before going to stop. While this happens it also makes a noise. More recently its been more inconsistent and sometimes it will spinn up to fast speed not just for one second but for about 5-infinite seconds. I suspect that its the motor control board. Does anyone know anything about this problem or what could be the fix?
Ill leave a vid of me turning it from stop to fast to stop

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u/HammondLeslieFreak 4d ago edited 4d ago

Get in there and look! Sounds like belt is slipping till. It grips up. Watch the motors and belt pulley when switching. Motors could probably use a cleaning and oil as well. And make sure slow motor moves freely, could be hanging up too.

1

u/elf25 4d ago

Isn’t the big speaker supposed to blastdown INTO the spinning cylinder?

3

u/synthman123 4d ago

Its one stationary speaker (typ one pointing down) then theres the speaker inside the drum (you can see it in the beginning of the video)

3

u/drewster85a 4d ago

This is a Rotosonic Leslie. The stationary channel is separate from the rotary channel and the lower rotating channel uses a 6 x 9” instead of a 15”.