Is the hand wheel supposed to be super hard to turn?

[JC2019]

On 8/15/2019 at 8:50 AM, Wizcrafts said:

You can determine whether or not the motor has a brake by unplugging the motor and removing the upper belt from the machine, then right hand wheeling the speed reducer's big pulley under the table. Alternate between leaving the floor pedal fully up, then slightly depressing the floor speed pedal with your left hand. If there is a brake it will he very hard to reducer with the motor (off) in the up position of the pedal. Slightly depressing the floor speed pedal would release any brake and allow the pulley to turn with very little effort. The actual range of free motion on servo motors tends to be minuscule, so feather the pedal. If moving the pedal, while its unpowered, doesn't get easier when you toe down, there is probably no brake.

Some machines ship with a little plastic bag of spare motor parts, including brushes and an extra cork brake. If there is a cork brake in the spare parts, your motor uses a brake! The brake is removable if you find you don't really need it to stop at your normal sewing speeds.

The hand wheel seems to be easier to turn now... not sure what changed.

 

I am not sure what I should know about the motor break but I'd be curious to learn more. From techsew, their response on it: "motor brake, it’s built into the motor. When you release the pedal the motor should stop on it’s own.". Does that help?

[kgg]

7 hours ago, JC2019 said:

From techsew, their response on it: "motor brake, it’s built into the motor. When you release the pedal the motor should stop on it’s own.". Does that help?

If you didn't get the manual for your servo motor from Techsew you should request a copy. The manual should detail the motors manufacturer / operation / functions / replacement parts etc. I don't think the statement you quoted isn't really helpful in figuring out the motors capabilities. Any working motor should eventually stop when the pedal is released. 

kgg

[Wizcrafts]

9 hours ago, JC2019 said:

I am not sure what I should know about the motor break but I'd be curious to learn more.

The brake (not break) is a curved piece of cork that's mounted inside the motor and is controlled by the activating lever. When the lever is all the way up, the brake sits hard against the armature. As you lower the lever, the brake moves away, just before the motor starts powering up. The range of free motion is limited. After that point is passed, the motor is power driven until you remove your foot from the pedal. Then the brake stops the motion quickly.

The brake assembly is secured by two screws and is removable if it bothers you, or you sew so slowly that it doesn't matter. It can also be filed or ground down to get more slack.

If you care to share a photo of the motor we can probably help with its operational details. Use the lowest resolution your camera allows for the smallest file size.