Announcement

Collapse
No announcement yet.

power lift motor overloads

Collapse

Adsense Classic 1

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • power lift motor overloads

    I recently bought two motors for the power lift locally. The only problem is that they have automatic overloads on them. I want to get a motor control circuit breaker to run them on. My question is, what size breaker should I get? How much more should it be than the motor amp rating? Has anyone done this before?
    (Psalm 37:29) The righteous themselves will possess the earth, And they will reside forever upon it.

  • #2
    Motors with auto resets can be a very dangerous situation, they will restart when they are ready and someone not knowing this could have their hand in the wrong spot and will be making a possible trip to the emergency room. I highly recommend not using auto overload motors!
    Brent V
    Hi-tech Repairs-Duck tape & ty raps

    Comment


    • #3
      My lifts pull 7.2 amps and I have a 10 amp circuit breaker on them. I've tested it out, seized motor trips breaker in a second, jammed balls in power lift trips beaker in about 2 seconds. Just look on the plate and see what load your motor pulls and get a breaker rated about 3 amps higher than that so it doesn't trip on startup.
      ......

      Comment


      • #4
        Originally posted by bwhite757 View Post
        My lifts pull 7.2 amps and I have a 10 amp circuit breaker on them. I've tested it out, seized motor trips breaker in a second, jammed balls in power lift trips beaker in about 2 seconds. Just look on the plate and see what load your motor pulls and get a breaker rated about 3 amps higher than that so it doesn't trip on startup.
        How do you sieze your motor to test for how long it will take to trip?
        Nick

        Comment


        • #5
          I would put three balls in it with the power off and turn it back on. That should do the trick.
          (Psalm 37:29) The righteous themselves will possess the earth, And they will reside forever upon it.

          Comment


          • #6
            Originally posted by bwhite757 View Post
            My lifts pull 7.2 amps and I have a 10 amp circuit breaker on them. I've tested it out, seized motor trips breaker in a second, jammed balls in power lift trips beaker in about 2 seconds. Just look on the plate and see what load your motor pulls and get a breaker rated about 3 amps higher than that so it doesn't trip on startup.
            Thank you!
            (Psalm 37:29) The righteous themselves will possess the earth, And they will reside forever upon it.

            Comment


            • #7
              Originally posted by Popeye View Post
              I would put three balls in it with the power off and turn it back on. That should do the trick.
              If your lift is opperating optimally, it will still spit those balls out even when you do this! And in my lifts if the balls get jamed with 3 balls in them, the motor still turns the lower wheel still turns and damages the last ball until the motor overheats. Years ago I shimmed my frames apart and this has not happened in a looong time though. Or the belt pops off. Rarely get issues in my lifts.
              Last edited by Mechanick; 04-06-2012, 02:05 PM.
              Nick

              Comment


              • #8
                Originally posted by Mechanick View Post
                If your lift is opperating optimally, it will still spit those balls out even when you do this! And in my lifts if the balls get jamed with 3 balls in them, the motor still turns the lower wheel still turns and damages the last ball until the motor overheats. Years ago I shimmed my frames apart and this has not happened in a looong time though. Or the belt pops off. Rarely get issues in my lifts.

                Well I guess if your lifts will pump out three balls from a dead stop then you would probably never have an overload. I know you are using urethane foam tracks. What wheels are you using? I also have been shimming the frame wider.
                (Psalm 37:29) The righteous themselves will possess the earth, And they will reside forever upon it.

                Comment


                • #9
                  Originally posted by Mechanick View Post
                  How do you sieze your motor to test for how long it will take to trip?
                  I actually had a seized motor in the back that I used to test. For jammed balls, 3 balls plus my foot holding them in place. Not the safest, but I wanted to make sure these breakers would pop if something else inside the lift was preventing the balls from coming up.

                  My lifts have no problems pulling up 3 balls from a dead stop startup even with the breaker. Something else has to jam the balls for them to not come up. I use the red urethane V wheels for both bottoms/tops I think they're from Quality??? Not sure, bought a couple on sale from Classic one time and realized they work good in combination with the urethane C-rails I was using, so I just kept ordering them from then on.
                  ......

                  Comment

                  Topic Starter RibbonScript

                  Collapse

                  Adsense Classic 2

                  Collapse
                  widgetinstance 666 (Related Topics) skipped due to lack of content & hide_module_if_empty option.
                   

                  Well this is a first.

                  We all from time to time have one of those “wow I’ve never seen THAT before” moments. Well today was one of those for me when my night tech texts me to say lane 16 is out...
                   

                  Ball return wheel guide roller removal.

                  Hey guys, i could just use a bit of advice trying to get this part out, first time I've had to do one of these. I got it to move a few turns but its come to a point where it has...
                   

                  Even old mechanics find something new.

                  All my years working on these things I never had this happen…… until last week. ...
                   

                  82-90XL Frontend Gearbox Parts - Rebuild Woes

                  We have 5 of the 088000365 replacement gear kits on the shelf, and I pulled two gearboxes off machines earlier this week, so I thought I'd try my hand at rebuilding them and save...
                   

                  Prolane damage

                  Can this be repaired?
                   

                  LED Ball Lights

                  Made an LED conversion for A2's and Frameworx masks. It can also be modded for the Harmony masks to accept 2 x 5mm led's and/or a 12v supply. Once I'm happy with the performance/design...
                  Working...
                  X