Maintaining your equipment #1: Machine Maintenance

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Blog entry by RBWoodworker posted 03-29-2009 06:58 PM 1280 reads 1 time favorited 3 comments Add to Favorites Watch
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I want to let anyone who is experiencing problems with their saws, especially when they are making unusual sounds to do everything they can to pinpoint the problem, and to not just ignore them.. unusual sounds are being caused by something either faulty or out of alignment..I had the problem with my saw sounding too loud and did not sound like it did when i first purchased it..I found that the pulley was working itself loose..pulleys commonly have only 1 set screw to secure them to the motorshaft along with the pin..when your dealing with high torque motors that, when first starting up,, they reach their top speed of usually 3470 rpm immediately.. that’s a lot of stress on that set screw. I removed my pulley and installed what is called a “Taper-Lock” pulley.. what that is is a 2 piece pulley.. the first piece is tapered and hugs almost the entire length of the motorshaft and the second piece which has the grooves for the belts is opposite tapered.. when they come together and the 2 set screws are tightened (they tighten into each other..not the motorshaft).. the first pulley that’s hugging the motorshaft get’s “Squeezed” tighter and tighter onto the shaft of the rather than just the set screw of a normal pulley holding the pulley onto the motorshaft.. you have the entire sleeve of the pulley squeezing the worked wonders for me.. however.. for my powermatic 66 saw..those pulleys were 75 bucks each..I bought 1 for the motor..and 1 for the arbor of the saw..perfect alignment is critical also..they must be in alignment with each other perfectly.. my saw purrs like a kitten now..To find a Taper-Lock pulley.. you will have to Google Taper-Lock Pulleys for motors to find a location nearest you..Another note worth mentioning is you will need to shaft dia. and I would recommendi taking your old pulley to the store where your looking to purchase the Taper-Lock and have them match it up.

I will be talking about shop cleaning and dust collections next..Please remember..I’m not any kind of expert..I can just tell people what I try and do to keep my machines tuned..I WOULD LOVE everyone else with great ideas to please..please post them also..lets let the information highways flow..

-- Randall Child

3 comments so far

View Francisco Luna's profile

Francisco Luna

943 posts in 3422 days

#1 posted 03-29-2009 10:49 PM

Great advise…...I do not have any motor around (sold my 66” last year) but I’‘ll keep the info, who knows one day will be helpful.

-- Nature is my manifestation of God. I go to nature every day for inspiration in the day's work. I follow in building the principles which nature has used in its domain" Frank Lloyd Wright

View Scott Bryan's profile

Scott Bryan

27250 posts in 3851 days

#2 posted 03-30-2009 12:41 AM

Thanks for the info. To be honest with you I would never have known what a tapered pulley was. I will keep this in mind.

-- Challenges are what make life interesting; overcoming them is what makes life meaningful- Joshua Marine

View RBWoodworker's profile


441 posts in 3381 days

#3 posted 03-30-2009 06:13 AM

I never knew what a taper lock pulley was untill I was telling my troubles to another gentleman, who in turn advised me to purchase one to correct my faulty pully’s on my saw.. boy was I glad i did.

-- Randall Child

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