Search found 184 matches

by lahola1
Tue Sep 28, 2021 10:08 pm
Forum: Maintenance and Repair
Topic: Mark VII Low Speed Too Fast
Replies: 48
Views: 4416

Re: Mark VII Low Speed Too Fast

I could never get my mkVII to go below 800RPM either. I believe I have an OEM belt (29.5" ,IIRC.505" wide). I also tried the exact top cog belt that JPG recommended; it made it worse (it was slightly less than .500" wide). I don't remember if I tried adjusting to sliding stop (can't f...
by lahola1
Thu Sep 16, 2021 8:05 pm
Forum: Community
Topic: DC motor conversion
Replies: 38
Views: 6771

Re: DC motor conversion

the Powerpro motor is pretty robust to get 250-10000 RPM. I don't think your going to find that in any treadmill motor. I also appears to be 2-3X bigger in size/volume of any treadmill motor. Maybe that has something to do with it. They have said on the FB dig conv group that the smaller motors aren...
by lahola1
Thu Sep 16, 2021 3:16 pm
Forum: Community
Topic: DC motor conversion
Replies: 38
Views: 6771

Re: DC motor conversion

edma194, looks like the info you posted came from the FB SS dig conversion group. I have a few other files from there that may interest you. As far as mc60 board and PWM, I did not see any info and I am no elec expert so I can't help there but I don't know why you would want to use PWM control inste...
by lahola1
Wed Sep 15, 2021 5:07 pm
Forum: Community
Topic: DC motor conversion
Replies: 38
Views: 6771

Re: DC motor conversion

I asked a question about comparable power to a std SS mkV on the FB digital motor conversion group about being able to rip 2X or hardwood stock. Norman Harrison (Admin) said he can cut 6x3 hard oak(or metric equivalent) without any problems. He also said he would try and do a side by side test compa...
by lahola1
Wed Sep 15, 2021 4:54 pm
Forum: Community
Topic: DC motor conversion
Replies: 38
Views: 6771

Re: DC motor conversion

1. If you use the controller that came with the treadmill motor (mc60, mc2100), you should have no problems controlling the motor. 2. Basically you throw out the 1st and last 15% of the control band as unusable; low power or low torque. The mc2100 board needs a PWM signal of 20hz. I replaced the big...
by lahola1
Sun Aug 15, 2021 11:00 pm
Forum: Maintenance and Repair
Topic: weak MKVII motor
Replies: 33
Views: 2893

Re: weak MKVII motor

UPDATE: I got an Avanti 10" 24T rip blade for my MKVII. It ripped a 2x4 with no noticeable slowdown of the blade. This was what I was hoping it would do. So I ripped 3 more 2x4s. As an experiment , I mounted the rip blade on my powerkraft RAS, but the 2x4 made it bog down right away. Found out ...
by lahola1
Wed Aug 11, 2021 3:00 pm
Forum: Maintenance and Repair
Topic: weak MKVII motor
Replies: 33
Views: 2893

Re: weak MKVII motor

ok, thanks for the info guys.
by lahola1
Wed Aug 11, 2021 1:57 pm
Forum: Maintenance and Repair
Topic: weak MKVII motor
Replies: 33
Views: 2893

Re: weak MKVII motor

RF Guy, No, I haven't checked anything yet. I'm just asking the question if they ( if any motors windings) are burnt but not shorted/open, can it be repaired , if so , by who? This specific question is for me to learn more about electric motors in general, not nesessarily my SS motor.
by lahola1
Wed Aug 11, 2021 12:49 pm
Forum: Maintenance and Repair
Topic: weak MKVII motor
Replies: 33
Views: 2893

Re: weak MKVII motor

"]You mentioned in an earlier post using speed "O" on the MkV." I did start with higher speed but then moved to "O" cause the chart said for hardwood; more torque but there wasn't much change in speed or cutting ability. Anyway, I've decided to get a 24T rip blade and s...
by lahola1
Tue Aug 10, 2021 5:10 pm
Forum: Maintenance and Repair
Topic: weak MKVII motor
Replies: 33
Views: 2893

Re: weak MKVII motor

JPG wrote:"I think stalling the motor will cause cb to trip" I guess I would agree with this, so now I'm leaning towards you guys are saying about belts slipping. With my hearing aids turned off and hearing protection on what I was hearing could be belt slipping instead of motor stalling R...