Two things ............
#11
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Yup - Sew classic.
We had started out by getting some stuff from ebay sellers - and it was hit or miss. Now we only order from Sew Classic. We just put in two orders last week (yup, realized we needed several more items the day after placing the first order LOL!
We had started out by getting some stuff from ebay sellers - and it was hit or miss. Now we only order from Sew Classic. We just put in two orders last week (yup, realized we needed several more items the day after placing the first order LOL!
#12
Senior Member
Join Date: May 2013
Posts: 670
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Does your machine buzz, hum, groan and struggle to go?
Does it do all that then suddenly take off like a scared rabbit?
Do you have one of those universal black rubber band belts on it?
Then take it off and put a real sewing machine belt on.
I have had several machines do this to me. And each ran so much better with a proper belt on it I wondered if it was the same machine. The last was my silver SEWMOR 404. I didn't have the proper belt for it until my order got here today and when the new belt went on, oh what a difference.
Joe
I think you have mentioned before that the noodley black rubber belts are cruddy, and the V Belts are Da Bomb.
Could you explain why it is that the rubbery noodles are bad? Also Candace mentioned they are hard on the machine. I would really appreciate knowing the "Why" of this all.
Thanks so much!
#13
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Thanks
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#15
Super Member
Thread Starter
Join Date: Feb 2012
Posts: 8,091
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Yes, Sew-Classic is the place I go to for belts. She won't have a direct listing for the SEWMOR but she does have instructions on how to find the belt size.
Basically tie a non stretching string around the motor pulley and hand wheel with the motor in the center of it's adjustment range, then remove the string and measure it. She has detailed instructions on how to do this in her site.
My SEWMOR 606 is very similar to your 754, but the belt on it has a non familiar number. If you want to email Jenny at Sew-Classic and give her the number to see if she can cross it, the belt number on my machine is 1100 L. I have no idea who made it as it was on the machine when I got it.
Joe
Basically tie a non stretching string around the motor pulley and hand wheel with the motor in the center of it's adjustment range, then remove the string and measure it. She has detailed instructions on how to do this in her site.
My SEWMOR 606 is very similar to your 754, but the belt on it has a non familiar number. If you want to email Jenny at Sew-Classic and give her the number to see if she can cross it, the belt number on my machine is 1100 L. I have no idea who made it as it was on the machine when I got it.
Joe
#16
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Am I incorrect in thinking the "black noodle" belts if adjusted correctly are not hard on a motor? I am under the impression if it is adjusted correctly and doesn't pinch within the pulley V it would not be harmful to the motor. I understand the V pulleys are made for V-belts, but why would the "noodle" belts be harmful if there is no stress anywhere?
#17
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Thread Starter
Join Date: Feb 2012
Posts: 8,091
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juls313b,
If you are sure of the 14.5" length with the motor in the middle of the adjustment travel, then I'd start with the black V-Belt # 196386. There are several cogged belts in the same size range, but that's where I'd start.
Sew-Classic belt page: { http://www.shop.sew-classic.com/Belts_c3.htm }
Vridar,
The V-belts when adjusted properly do not put a tension or load on the motor bearings. If you do a deflection test on a properly tensioned V-Belt it will move quite a bit, and actually appear loose. The proper adjustment is "just tight enough to not slip, no tighter".
The black "noodle belts" are designed to stretch to fit many sizes. If you put them on like a v-belt they will slip. It's the nature of the rubber. I've actually removed the rubber band belts that had slipped so much there was a grove in the belt, and the pulleys were coated with burnt rubber.
On the other hand if you adjust tight enough to not slip, they put a constant load on the motor bearings. Always there weather the machine is running or not.
The third thing is the rubber band belts tend to heat check, dry out and break much more often than a proper v-belt.
Those are the primary reasons I dislike them.
Joe
If you are sure of the 14.5" length with the motor in the middle of the adjustment travel, then I'd start with the black V-Belt # 196386. There are several cogged belts in the same size range, but that's where I'd start.
Sew-Classic belt page: { http://www.shop.sew-classic.com/Belts_c3.htm }
Vridar,
The V-belts when adjusted properly do not put a tension or load on the motor bearings. If you do a deflection test on a properly tensioned V-Belt it will move quite a bit, and actually appear loose. The proper adjustment is "just tight enough to not slip, no tighter".
The black "noodle belts" are designed to stretch to fit many sizes. If you put them on like a v-belt they will slip. It's the nature of the rubber. I've actually removed the rubber band belts that had slipped so much there was a grove in the belt, and the pulleys were coated with burnt rubber.
On the other hand if you adjust tight enough to not slip, they put a constant load on the motor bearings. Always there weather the machine is running or not.
The third thing is the rubber band belts tend to heat check, dry out and break much more often than a proper v-belt.
Those are the primary reasons I dislike them.
Joe
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