Valby ch150 questions

[ricesinice]

Hi Ma1920,
Do you think you can send me a picture of your Valby so I can see how far in the belt tensioner is for the belts? I am going to try to clean all of the rust off of the pulleys this weekend and want to have an idea where to set it if I don't get a fish scale to check the tension.

 

[ricesinice]

OK, thanks. I am getting a few in the pulleys also. I wire brushed and sanded the pulleys as much as I could before the back started giving me problems. I ran it with the 2 stretched and one still kind of good belt with the pto going for about 10 minutes and all seemed well. I then ran a couple of 1" branches through it and that worked but, (as I thought) when I went bigger, the other belts broke and stretched beyond any use. So, my question is do you all use regular belts or do you use the kevlar/ better grade belts? I really want to get an hour or so of chipping with the cheap belts before spending $50 on a set of belts. I have been buying D&D PowerDrive A49 belts. Should my tensioner be this close to the pulleys? Well, I tried to attach a picture but for some reason it isn't letting me. At asny rate the tensioner is pretty much an inch off of the disk pulley.

 

[LouNY]

A couple of questions for you on your belts,

when you buy them are you getting matched sets or just the same numbers?
for multiple belt setups they used to all ways recommend matched sets.

are your belts the proper width, they should not touch the bottom of the pulleys,
and should sit just a bit higher then the outside of the pulleys.

Also there are multiple belts in one that can transmitt much more power then multiple single ones,
such as the Goodyear HY-T Torque Team, if this link works it would be on or about page 55;
866-711-4673 Goodyear Rubber Products Goodyear_Industrial_Power_Transmission_Belts

 

[JimR]

OK, thanks. I am getting a few in the pulleys also. I wire brushed and sanded the pulleys as much as I could before the back started giving me problems. I ran it with the 2 stretched and one still kind of good belt with the pto going for about 10 minutes and all seemed well. I then ran a couple of 1" branches through it and that worked but, (as I thought) when I went bigger, the other belts broke and stretched beyond any use. So, my question is do you all use regular belts or do you use the kevlar/ better grade belts? I really want to get an hour or so of chipping with the cheap belts before spending $50 on a set of belts. I have been buying D&D PowerDrive A49 belts. Should my tensioner be this close to the pulleys? Well, I tried to attach a picture but for some reason it isn't letting me. At asny rate the tensioner is pretty much an inch off of the disk pulley.

You need to run Kevlar belts on any type of equipment that has and interrupted cut. The Kevlar bands keep the belt from stretching out and breaking. My 72 inch rear mower belt will last about 2 minutes if it is standard V-belt. A Kevlar belt will last me more than a Summer on the big deck. You should be running matched belts or better yet a banded belt. Basically there is 3 belts all made together with a tough band around the outside to keep them from stretching at all. I have one of these on my stump grinder. Look up banded belts with the size of your belt.

 

[ricesinice]

I have not been buying matched sets. I am pretty sure that they are the correct width and depth, they fit in the pulley fine. I did just order 4 kevlar belts (not matched). If they work better then I might go for the banded belt but, I want to get a couple of hours run time on a single set of belts. I did notice that the pulleys are't perfectly lined up so, I will have to move the disk a bit to get them perfect.

 

[JimR]

I have not been buying matched sets. I am pretty sure that they are the correct width and depth, they fit in the pulley fine. I did just order 4 kevlar belts (not matched). If they work better then I might go for the banded belt but, I want to get a couple of hours run time on a single set of belts. I did notice that the pulleys are't perfectly lined up so, I will have to move the disk a bit to get them perfect.

I build machinery for a living. Your belt pulleys should be as close as possible to dead on parallel. Belt manufacturers will tell you that you are allowed a 32nd of an inch offset per foot on a belt. Another words if your belt where it leaves the pulley and meets the other pulley is one foot distance then you are allowed 1/32nd of an inch of being off. We use a straight edge on the pulley faces to make sure that the pulleys are as close to dead on as possible for the longest belt life. YES, you should be running matched belts when there is more than one belt on a pulley. It does make a difference as V belt runs will have slightly shorter and slighter longer belts in different runs. Most of our machines have 4 - 5 belts on the drive motor. The HP runs from 10 - 50 HP.

 

[MA1920]

Hi Ma1920,
Do you think you can send me a picture of your Valby so I can see how far in the belt tensioner is for the belts? I am going to try to clean all of the rust off of the pulleys this weekend and want to have an idea where to set it if I don't get a fish scale to check the tension.

I'll get a picture this weekend. Sorry for the delayed response.

 

[MA1920]

You need to run Kevlar belts on any type of equipment that has and interrupted cut. The Kevlar bands keep the belt from stretching out and breaking. My 72 inch rear mower belt will last about 2 minutes if it is standard V-belt. A Kevlar belt will last me more than a Summer on the big deck. You should be running matched belts or better yet a banded belt. Basically there is 3 belts all made together with a tough band around the outside to keep them from stretching at all. I have one of these on my stump grinder. Look up banded belts with the size of your belt.

Thanks to Jim I learned something new today. I never heard of banded belts. The last time I replaced the belts on my chipper, I obviously bought the same part number belt. This spring, I noticed one belt was a little stretched. It appears banded belts would eliminate that.

 

[MA1920]

Hi Ma1920,
Do you think you can send me a picture of your Valby so I can see how far in the belt tensioner is for the belts? I am going to try to clean all of the rust off of the pulleys this weekend and want to have an idea where to set it if I don't get a fish scale to check the tension.

I took a couple pictures today. I hope it helps you.

 

[JimR]

Your belts should be tight so that there is no slippage. Not too tight that they are like piano wires, but tight.