509,708 active members
3,083 visitors online
Register for free
Login
IndustryArena Forum > MetalWorking Machines > Fadal > Smoke after Spindle turn off
Results 1 to 6 of 6
  1. #1
    Registered
    Join Date
    Nov 2017
    Posts
    13

    Smoke after Spindle turn off

    Hello,

    I just buyed an old fadal, 96'... I'm used to work with HAAS.
    After spindle off, i just usem M3 in MDI to start again at other speed... a lot of smoke and a "squealing" from belt area. After I push shift spindle start, spindle start normally but with a "flop flop" noise in low rpm.
    Is normal what was happened? I'm not allowed with fadal to overwrite the stop command for spindle with M3S...?

    Sry for my English!

  2. #2
    Registered
    Join Date
    Jan 2015
    Posts
    331

    Re: Smoke after Spindle turn off

    Take the Head cover off. The shifting Hi/Lo rollers are most likely adjusted to far in ... too much engagement. So all the belts are trying to grab the pulleys which will make a terrible sound but will do very little damage. To do this take out the 1/4-20 bolt at the rear of the Air Pistons, then swing them out. So you can get to the 1/2-13 bolt into the motor and then loosen the 1/2-13 Socket cap screw (back corner of the Spindle motor mount) allowing the assemble to swing out. Pull it out a bit tighten everything up and try it again. if all belts are still engaging back it off more. I assume you have the correct belt installed. if not here is a location for them https://itscnc.com/bel-0007-p-577.html

  3. #3
    Registered
    Join Date
    Nov 2017
    Posts
    13

    Re: Smoke after Spindle turn off

    Thanks for your answer, I have this kind of belt https://itscnc.com/bel-0024-p-236.ht...7fe57bc5d01f51. Is a possibility to happen this because the air compressor didn't start and I was under 5.5 bar? and both air cylinder was at half of travel?
    Now I fix the air cinder and everything works perfect but with noise in low RPM.. .X( the belt is very tight or I do some damage to the belt at that squish.

  4. #4
    Registered
    Join Date
    Sep 2009
    Posts
    95

    Re: Smoke after Spindle turn off

    Yes. The low air pressure most likely caused your problem. You now have a burnt spot on the low speed belt that will cause vibration and noise. It should probably be replaced.

  5. #5
    Registered
    Join Date
    Jan 2015
    Posts
    331

    Re: Smoke after Spindle turn off

    Your definitely going to want to watch this video if you are going to change the belts. It is the same belt drive you have. And its probably the only video i have ever seen showing how to do it. https://www.youtube.com/watch?v=Hkmd...n9JroJ4l990gPg

  6. #6
    Registered
    Join Date
    Nov 2017
    Posts
    13

    Re: Smoke after Spindle turn off

    Thanks a lot, is very helpful, today I saw I have all the time spindle load at 30%. Is to much and how i can solve this?

    Thanks,

Similar Threads

  1. How to turn on/off spindle
    By bcer960 in forum Mach Mill
    Replies: 11
    Last Post: 01-18-2013, 04:13 PM
  2. how to turn on spindle while mill spindle is on!!
    By the mill kid in forum Mazak, Mitsubishi, Mazatrol
    Replies: 3
    Last Post: 11-22-2010, 08:08 PM
  3. Smoke? Through the Spindle?
    By donl517 in forum Fadal
    Replies: 32
    Last Post: 06-10-2010, 02:31 PM
  4. Spindle won't turn on
    By ranchak in forum Bridgeport / Hardinge Mills
    Replies: 5
    Last Post: 08-30-2009, 12:32 AM
  5. interact 4 spindle drive won't turn on spindle
    By 0041601 in forum Bridgeport / Hardinge Mills
    Replies: 7
    Last Post: 06-23-2008, 11:51 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •