WhenI let go of the safety handle the mower will not turn off unless I let go of the handle slowly to a certain spot and then it will turn off. Any suggestions? Thanks Dave

Check the brake switch. Or all of the safety switches that will not let you operate unit unless certain conditions are met. If one is stuck in wrong position this might account for the issue.

Did you pull the safety handle back all the way. or has it slipped so it doesn't work right.That is what the little safety handle is made to do not only to shut the engine off but stop the blades.
Has the engine seized up? Just ideas.
Is there junk that is holding the blades from turning.

Sounds like a safety switch is not working right. Mine won't start unless I pull back on the handle that engages the blades. If I make sure that handle is pulled up as far as it will go it starts. I disconnected the safety for the seat because when I turned my body the seat moved and shut the unit off and its a new machine.

has to be one of the safty switches are bad dosnt make any sence it could be some else not unless you have a lock hydro pump im curious what it could be let me know

you need to install the cable and safety handle first hold down the handle then it will pull out

that"s how its made

There are safety interlocks on zero turn mowers. These prevent starting unless you have: 1. the handles in 'neutral' position 2. the brake on 3. the mower engagement (PTO) switch off 4. yourself in the seat.
Chances are one of these conditions hasn't been met. Since you were reversing when it happened, perhaps you haven't got the handles back to neutral position?

After charging the mower, you must place the safety key in the mower before it will start. On models that have a bail handle, be sure to pull the bail handle back to the mower handle before engaging the start lever. If your mower still does not start, remove the safety key and ensure the bail and start lever are in the "off" position. Then firmly re-insert the safety key, pull the bail handle to the mower handle and engage the start lever.

Note - It is important that the bail and start lever are returned to the "off" position before inserting the safety key.
Give it try, if it still will not operate you may have to take it in for service.
Good luck, let me know.
Regards,

Most of the time its the seat safety switch .
Alway engage and disengage mower deck too as there is a safety switch there too, some times its just needs moved some, its not the clutch pedal safety switch.

cmm1200 switch in the handle problem. switch contact maybe burnt out. parts are available. see dewaltservicenet.com or toolpartsdirect.com for diagarm etc.