Mark VII (The Old One) Motor
Moderator: admin
-
Steamdragon
- Gold Member
- Posts: 137
- Joined: Sat Aug 01, 2015 12:50 am
- Location: San Jose, CA
Mark VII (The Old One) Motor
While looking for parts I cam across an ad on E-Bay for Mark VII motor rebuild for $80. Does anyone know anything about this service and if they are reputable?
Re: Mark VII (The Old One) Motor
A link to it wood have been nice. 
SS 500(09/1980), DC3300, jointer, bandsaw, belt sander, Strip Sander, drum sanders,molder, dado, biscuit joiner, universal lathe tool rest, Oneway talon chuck, router bits & chucks and a De Walt 735 planer,a #5,#6, block planes. ALL in a 100 square foot shop.
.
.
Bob
.
.
Bob
-
Steamdragon
- Gold Member
- Posts: 137
- Joined: Sat Aug 01, 2015 12:50 am
- Location: San Jose, CA
-
JPG
- Platinum Member
- Posts: 35600
- Joined: Wed Dec 10, 2008 7:42 pm
- Location: Lexington, Ky (TAMECAT territory)
Re: Mark VII (The Old One) Motor
In my opinion, yes.
However realize it will not fix the reverse problem.
However realize it will not fix the reverse problem.
╔═══╗
╟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: Mark VII (The Old One) Motor
Not sure what that answer means but the service if from Simon Eng in Anaheim Hills and he restores the motors and they will run both directions.JPG wrote:In my opinion, yes.
However realize it will not fix the reverse problem.
-
JPG
- Platinum Member
- Posts: 35600
- Joined: Wed Dec 10, 2008 7:42 pm
- Location: Lexington, Ky (TAMECAT territory)
Re: Mark VII (The Old One) Motor
The reverse problem is NOT in the motor, but rather the switch.db5 wrote:Not sure what that answer means but the service if from Simon Eng in Anaheim Hills and he restores the motors and they will run both directions.JPG wrote:In my opinion, yes.
However realize it will not fix the reverse problem.
╔═══╗
╟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
-
BuckeyeDennis
- Platinum Member
- Posts: 3814
- Joined: Tue Jul 24, 2012 10:03 pm
- Location: Central Ohio
Re: Mark VII (The Old One) Motor
In a different thread, Steamdragon explained that his Mark VII motor ran ok in forward, but only hummed in reverse.
If the motor runs in forward, then the motor itself should be Ok, because it uses the exact same windings, start circuitry, etc. to run in either forward or reverse. The only difference is that the polarity of the start-winding voltage is reversed in order to make it run in reverse. That is the function of the reversing switch. If the motor just hums when the reversing switch is set to Reverse, it probably means that the reversing switch is not conducting.
If the motor runs in forward, then the motor itself should be Ok, because it uses the exact same windings, start circuitry, etc. to run in either forward or reverse. The only difference is that the polarity of the start-winding voltage is reversed in order to make it run in reverse. That is the function of the reversing switch. If the motor just hums when the reversing switch is set to Reverse, it probably means that the reversing switch is not conducting.
-
JPG
- Platinum Member
- Posts: 35600
- Joined: Wed Dec 10, 2008 7:42 pm
- Location: Lexington, Ky (TAMECAT territory)
Re: Mark VII (The Old One) Motor
╔═══╗
╟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: Mark VII (The Old One) Motor
I was never able to get the MK VII switches on any of the MK VIIs I brought or serviced to function properly. I converted a couple of the MK VIIs to switches by using a 20 amp motor rated DPDT toggle switch for the FWD/REV switch and a 20 Amp motor rated DPST switch for the ON/OFF switch in a metal plate screwed to where the push buttons were located.