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How to change belt on variable speed drill press?

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Forum topic by ColonelTravis posted 06-15-2015 08:29 PM 1634 views 0 times favorited 12 replies Add to Favorites Watch
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ColonelTravis

1191 posts in 1358 days


06-15-2015 08:29 PM

Topic tags/keywords: variable speed drill press wen reeves drive

The pulley tension is controlled by a lever, and you’re not supposed to move the lever unless the motor is on. So how do you change a belt? The manual says “work the belt off the drive (motor) spindle”, which is impossible because of the tension. Thanks manual! Guess this is a Reeves drive, I don’t know of any other variable speed drives.

The DP is a 12” Wen, which is pretty much the Jet JDP-12 but I believe a slightly more powerful motor. Have not used it much but the tolerances are tight, holes measure exactly the bit size, very impressed. Only issue is vibration (not horrible but enough that I want to see if it can be fixed) and looking at the belt with the cover off, it really flops around at certain speeds. Some speeds it’s smooth.

I read someone somewhere, not here, say link belts could not be used on Reeves drives. Is this correct?


12 replies so far

View MrUnix's profile

MrUnix

4225 posts in 1663 days


#1 posted 06-15-2015 08:38 PM

Are you wanting to take the belt off for replacement or something? If so, you most likely will have to remove the retaining ring on the back pulley and pull the top of the pulley off.

Cheers,
Brad

PS: I wouldn’t use a link belt on a reeves drive pulley… but others may disagree.

-- Brad in FL - To be old and wise, you must first be young and stupid

View waho6o9's profile

waho6o9

7173 posts in 2041 days


#2 posted 06-15-2015 08:44 PM

Unplug the drill press

Stick screw driver shaft between pulley and belt and rotate the pulley while

lifting up on the screw driver.

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ColonelTravis

1191 posts in 1358 days


#3 posted 06-15-2015 08:50 PM

Yeah, it would be to try a new belt to see if it cuts down the vibration. Link belt is what I had in mind but if that’s not recommended, then I won’t.

Here’s the back pulley, I think that’s the ring you’re talking about on top there?

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waho6o9

7173 posts in 2041 days


#4 posted 06-15-2015 08:52 PM

These help a lot ^

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REO

889 posts in 1538 days


#5 posted 06-15-2015 10:45 PM

you don’t need to disassemble anything! close the lever loaded (usually the spindle pulley) as fart as it will go(slowest spindle speed ) shut off the drill. hold the belt in to the grove on the motor pulley by hand and open the lever loaded pulley (turn toward the fastest spindle speed) the belt will be loose enough to bring one side to the center and the other side over the edge. take the belt off. putting the belt on is a little tougher. put the belt over the motor pulley and pull tight. now work the belt into the grove by keeping the tension on the belt and working the belt back and forth it will walk toward the center. once it has bottomed out against the smallest diameter of the spring loaded pulley the belt can be walked over the front (spindle pulley) holding the belt into the motor pulley by hand. once installed turn the spindle by hand until the slack in the belt is taken up.

View Ghidrah's profile

Ghidrah

667 posts in 686 days


#6 posted 06-16-2015 01:43 AM

Man I feel sorry for you if that’s what you have to do to change belts or speed. My 25 yr. old Delta DP has 2 lock knobs and a tension lever to move the motor back and forth to change belt orientation.

-- I meant to do that!

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Ghidrah

667 posts in 686 days


#7 posted 06-16-2015 01:46 AM

Ah, I just peeked at the manual for your DP at least you don’t have to open up the cover to change spindle speed, but you can’t release tension on the belt to prevent stretching over time.

-- I meant to do that!

View NZSixNine's profile

NZSixNine

5 posts in 540 days


#8 posted 06-16-2015 02:17 AM

” issue is vibration”
”... it really flops around at certain speeds.”

Could the belt be old and have taken a set from lack of use while stored?

If I understand the way the VS Drive works, at one end of the range the distance between the two pulley centers is less than at the other (Higher end?) and this would seem to be the setting you want the DP at when attempting to pry the belt off.

With the cover off and the DP running, you should be able to see the difference easily (if there is any, of course).

View ColonelTravis's profile

ColonelTravis

1191 posts in 1358 days


#9 posted 06-16-2015 03:10 AM

REO’s method worked (thanks) but I cannot get the tension back.
You can find out pretty much anything about anything on the internet except this subject. Ugh.

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NZSixNine

5 posts in 540 days


#10 posted 06-16-2015 03:23 AM



REO s method worked (thanks) but I cannot get the tension back.
You can find out pretty much anything about anything on the internet except this subject. Ugh.

- ColonelTravis


I didn’t read his post before I posted mine. maybe, if you reply to his post (quote it) he will get a notice and respond. From what I read, he seems to have a better handle on the mechanism than I did never having used one1

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ColonelTravis

1191 posts in 1358 days


#11 posted 06-16-2015 03:37 AM

No worries, NZ, I ‘m clueless about this type of drive on a drill press. If it were a Reeves drive lathe I’d be fine. From what I’ve read, Reeves are a little louder and have a little more vibration anyway. Once I had it running for a while it seemed to calm down, maybe the belt has to be broken in. I’m fine with how it was because the thing drills great.

View REO's profile

REO

889 posts in 1538 days


#12 posted 06-16-2015 09:07 PM

be sure the belt is the proper length. keep spinning the spindle by hand and turn the adjustment toward the low speed setting again. These aren’t made to run fiddle string tight. try turning it on and watch the mechanism as you run through the speed range. it is possible that the spring loaded pulley is stuck on a rough spot check the top surface of the pulley as you rotate it and see if it wobbles. I’ll check back later.

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