It's slipping

crokseti · Post by **crokseti** » Sat Apr 16, 2011 8:02 am

I got this mark V a couple months back and finally got the coupler for the bandsaw attachment so I tried it out and the motor is slipping and has no torque.
It changes speed o.k. but when I try to cut even a thin piece with the saw it slows to nothing altho I can hear the motor is turning.
Hopefully its the drive belt slipping and not the clutch assy.
Any ideas? Suggestions?

dusty · Post by **dusty** » Sat Apr 16, 2011 8:16 am

crokseti wrote:I got this mark V a couple months back and finally got the coupler for the bandsaw attachment so I tried it out and the motor is slipping and has no torque.
It changes speed o.k. but when I try to cut even a thin piece with the saw it slows to nothing altho I can hear the motor is turning.
Hopefully its the drive belt slipping and not the clutch assy.
Any ideas? Suggestions?

There is no clutch.

I would suggest that you open it up and give it a good visual inspection. Check the tension on the belts, especially the drive belt (motor belt).

Which model Mark V do you have? No need to reply. I checked your previous posts. It is a 500.

Have you checked operation with other than the bandsaw?

crokseti · Post by **crokseti** » Sat Apr 16, 2011 8:25 am

Can I make these belt adjustments without disassembling too much?

nuhobby · Post by **nuhobby** » Sat Apr 16, 2011 8:44 am

Here is a quick guide; it's not too hard:
http://www.songofthegreatlakes.com/sstension.htm

Ron309753 · Post by **Ron309753** » Sat Apr 16, 2011 9:21 am

Have you made sure the coupler hubs are securely fastened to their respective shafts?

Sincerely,

Ron309753

JPG · Post by **JPG** » Sat Apr 16, 2011 10:52 am

nuhobby wrote:Here is a quick guide]http://www.songofthegreatlakes.com/sstension.htm[/URL]

Do not over tighten the bolt securing the eccentric. Doing so may cause the ears which the screw passes through to crack(break).

foxtrapper · Post by **foxtrapper** » Tue Apr 19, 2011 7:07 am

As well, make sure the coupler is not worn out inside. There are tabs that slip into the notches of the metal wheels. If those notches are worn away, it'll slip under load.

But first, identify where the slipping is happening.

billmayo · Post by **billmayo** » Tue Apr 19, 2011 9:48 am

dusty wrote:There is no clutch.

I would suggest that you open it up and give it a good visual inspection. Check the tension on the belts, especially the drive belt (motor belt).

Which model Mark V do you have? No need to reply. I checked your previous posts. It is a 500.

Have you checked operation with other than the bandsaw?

Sorry Dusty, there is a clutch in all the 54-61 Gilmer drive machines. I have rebuilt and tested Gilmer clutches available. However, I find the set screw for the drive sleeve pulley (Gilmer & Poly-V) can loosen over time causing this problem most of the time.

Remove the belt cover and see what the belts are doing under load.

dusty · Post by **dusty** » Tue Apr 19, 2011 10:29 am

billmayo wrote:Sorry Dusty, there is a clutch in all the 54-61 Gilmer drive machines. I have rebuilt and tested Gilmer clutches available. However, I find the set screw for the drive sleeve pulley (Gilmer & Poly-V) can loosen over time causing this problem most of the time.

Remove the belt cover and see what the belts are doing under load.

Thank you for the enlightenment. Actually, this is not the first time I have learned that. I guess I need to go find a 500 to tear apart. Hands-on is the best teacher for me.

JPG · Post by **JPG** » Tue Apr 19, 2011 11:17 am

dusty wrote:Thank you for the enlightenment. Actually, this is not the first time I have learned that. I guess I need to go find a 500 to tear apart. Hands-on is the best teacher for me.

Actually a Gilmer Greenie(later) or Goldie.