motor slow down
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motor slow down
Hi I have a mark 5 1 1/8 amp model and when I go above "r-s" on the speed adjustment it starts slowing down and stops at "z " , belt looking ok and did oil where the manual said to. any ideas? thanks
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JPG
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Re: motor slow down
Did you oil the floating sheave on the motor shaft?
Take the belt cover off. Observe the motor pulley/floating sheave.
I am guessing it stops moving above "R" and the belt slips.
Oil it* with 'vigor'. Make sure it will slide all the way.
*Shaft as well as the dinky hole.
Take the belt cover off. Observe the motor pulley/floating sheave.
I am guessing it stops moving above "R" and the belt slips.
Oil it* with 'vigor'. Make sure it will slide all the way.
*Shaft as well as the dinky hole.
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╟JPG ╢
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
╟JPG ╢
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
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dusty
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Re: motor slow down
Don't oil "it". Oil the sheave.JPG wrote:Did you oil the floating sheave on the motor shaft?
Take the belt cover off. Observe the motor pulley/floating sheave.
I am guessing it stops moving above "R" and the belt slips.
Oil it* with 'vigor'. Make sure it will slide all the way.
*Shaft as well as the dinky hole.
"Making Sawdust Safely"
Dusty
Sent from my Dell XPS using Firefox.
Dusty
Sent from my Dell XPS using Firefox.
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JPG
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- Joined: Wed Dec 10, 2008 7:42 pm
- Location: Lexington, Ky (TAMECAT territory)
Re: motor slow down
"IT" is the space between the shaft and the sheave that the sheave slides on.dusty wrote:Don't oil "it". Oil the sheave.JPG wrote:Did you oil the floating sheave on the motor shaft?
Take the belt cover off. Observe the motor pulley/floating sheave.
I am guessing it stops moving above "R" and the belt slips.
Oil it* with 'vigor'. Make sure it will slide all the way.
*Shaft as well as the dinky hole.
I did not state that clearly above.
╔═══╗
╟JPG ╢
╚═══╝
Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
╟JPG ╢
╚═══╝
Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
Re: motor slow down
Hi Rusty
I looked at the motor with the cover off and see that the upper (control sheave) opens up way wide to the point the belt is loose. so it is no longer turning the lower one. so ideas on how to fix? thanks Wayne
I looked at the motor with the cover off and see that the upper (control sheave) opens up way wide to the point the belt is loose. so it is no longer turning the lower one. so ideas on how to fix? thanks Wayne
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JPG
- Platinum Member
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- Joined: Wed Dec 10, 2008 7:42 pm
- Location: Lexington, Ky (TAMECAT territory)
Re: motor slow down
For starters, the lower pulley(motor shaft) drives the belt.wayy999 wrote:Hi Rusty
I looked at the motor with the cover off and see that the upper (control sheave) opens up way wide to the point the belt is loose. so it is no longer turning the lower one. so ideas on how to fix? thanks Wayne
The upper control sheave alters the effective diameter(opens/closes) of the idler pulley.
The lower floating sheave adjusts the effective belt tension.
Thus at high speed, the upper control sheave opens and the lower floating sheave must close(belt moves to the outer circumference)to maintain tension. Since your belt is slipping at high speed, I suspect from your description that the floating sheave is NOT closing sufficiently to maintain tension.
╔═══╗
╟JPG ╢
╚═══╝
Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
╟JPG ╢
╚═══╝
Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
Re: motor slow down
yes so what can I do to close the upper sheave? or stop or adjust so it does not open so much at the higher speeds?
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JPG
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- Joined: Wed Dec 10, 2008 7:42 pm
- Location: Lexington, Ky (TAMECAT territory)
Re: motor slow down
Your problem is not the upper sheave opening too much.wayy999 wrote:yes so what can I do to close the upper sheave? or stop or adjust so it does not open so much at the higher speeds?
It is the lower sheave not closing enough.
It is called the control sheave because it is what is adjusted to control speed. The floating sheave responds to that so as to maintain belt tension.
Take a look at the lower pulley. At 'fast' the belt should ride near the outer rim.
If this is not making sense, perhaps some pix of what is occurring would help.
╔═══╗
╟JPG ╢
╚═══╝
Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
╟JPG ╢
╚═══╝
Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
Re: motor slow down
Here are pics
Re: motor slow down
JPG wrote:Your problem is not the upper sheave opening too much.wayy999 wrote:yes so what can I do to close the upper sheave? or stop or adjust so it does not open so much at the higher speeds?
It is the lower sheave not closing enough.
It is called the control sheave because it is what is adjusted to control speed. The floating sheave responds to that so as to maintain belt tension.
Take a look at the lower pulley. At 'fast' the belt should ride near the outer rim.
If this is not making sense, perhaps some pix of what is occurring would help.