not enough power

[sawmilljoe]

Your tires will take hp to turn so you have to lower your blade speed to give you enough torque to keep your motor from losing its power . Right now your blade speed is 4766.52 feet you need to lower that by about 1000 feet so a 2.5 on the motor will bring your blade speed to 3436.2 which will get you a lot better torque. Hope this helps

[Jemclimber]

On all of my equipment, the idler pulley is flat and on the back side of the belt to increase the wrap on the drive pulley.  Some are spring loaded and some are over center to provide a clutch.

Please tell us that you have a shroud around your tires to cover your band. 

Looks like you lost a lug nut on your left (nondrive) tire as well.

[revid]

lol,yeah I have a cover over the bands when sawing and I know about the lug nut.thanks all the same. Looked at those idlers in princess auto online store and will probably go with something like that but still dont have alot of room to work with. again guys thanks for all the help and info

[dustyhat]

I would do like others have recommended reconfigure my belt set up, i can see in the pics that your belt has been slipping . i went to double belts on every thing and ended all my headaches.

[Kbeitz]

lol,yeah I have a cover over the bands when sawing and I know about the lug nut.thanks all the same. Looked at those idlers in princess auto online store and will probably go with something like that but still dont have alot of room to work with. again guys thanks for all the help and info

The idlers off garden tractors works great. If you have a junkyard around
I bet you could get them cheap. Garden tractors have both idlers for inside
and the outside of V-belts. Check out the mowing decks. Also check E-bay.

[grouch]

A smaller engine pulley means more wear on the belt. A larger pulley on the driven bandwheel or a jackshaft would be better, IMO.

[revid]

Ok guys bk at mill. What I thought was a 3.5" pulley on motor was a 3.75.... so it was suggested I go to 3.25 when we thought I had a 3.5 so I went to a 3.15" on motor. Couldn't find a 3.25. I used a digital tack and test the toms of the motor and the tire( minus the blade). Motor is aprox 4045 and the tire is 845 rpms. That's a 20" tire. Here are some pics of tack and idler wheel in place.

[img width=640


What do you think?

[Den-Den]

I like this set-up.  If you still have belt slipping issues, try a notched belt ex: "BX-***" instead of "B-***".  They bend around small pulleys a little easier.

[dgdrls]

I think you're still too fast, 
at 4025 RPM & 3.15' drive pulley I compute roughly 4423 SFPM.
calculate by the wheel speed 845/ 20" dia 4424

Slow your motor to 3600 RPM I think that is factory rated RPM,  check a bit to be certain
that puts you at 3956 SFPM

Give it a go see how it saws.

D