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Help Request - Delta Unisaw Blade Height problems

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Forum topic by Milo posted 05-06-2012 10:53 AM 1270 views 0 times favorited 8 replies Add to Favorites Watch
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Milo

851 posts in 1971 days


05-06-2012 10:53 AM

Hmmm… I think that when I put the dado set on my ‘73 5hp Delta UniSaw that the blades are dropping into down when I push a board over them. I may be happening with a single blade also.

As you can imagine, this can be a PAIN when you trying to cut out dados and rabbits!

Does anyone have any ideas why this is occurring, and how I might correct it?

Thanks!

Milo

-- Beer, Beer, Thank God for Beer. It's my way of keeping my mind fresh and clear...


8 replies so far

View Mickey Cassiba's profile

Mickey Cassiba

312 posts in 1683 days


#1 posted 05-06-2012 11:32 AM

Backlash in the elevating gears is my first guess. Are you lowering the arbor just prior to making your cut? If you raise to your final depth of cut, you can eliminate backlash as the culprit. Another guess would be gunk in the locking mechanism, making a ‘cushion’ between the lock rod and the balls that lock it in. Of course these are just WAGs , but perhaps a place to start looking.

-- One of these hammers oughta fix that...

View Milo's profile

Milo

851 posts in 1971 days


#2 posted 05-06-2012 12:17 PM

Mickey,

I am not familiar with backlash, what is this?

I am not lowering the arbor before I cut (I think). I am raising the bladed to were and want and cutting.

When you say “lock rod and balls that lock it in”, I am not sure what you mean. I don’t see any “balls” in the exploded diagram of my saw.

THANKS for the help!

Milo

-- Beer, Beer, Thank God for Beer. It's my way of keeping my mind fresh and clear...

View killerb's profile

killerb

150 posts in 1050 days


#3 posted 05-06-2012 12:22 PM

Unisaws have a lock for the height adjustment. Are you using it? Micky is right also. Just asking. bob

-- Bob www.bobkloes.com

View Milo's profile

Milo

851 posts in 1971 days


#4 posted 05-06-2012 12:30 PM

You know, I am beginning to feel a little stupid here… I don’t think my saw has the locking knobs on it! How stupid is that! I wonder who took them off?!? I remember thinking about that when I first started using this saw, and thinking it must lock some other way… stupid me…

Off to double check.. then call Saw Center Monday…

Milo

UPDATE: WOW, talk about missing the forest for the trees. BOTH locks are missing on the saw. Do I feel dumb. Wonder what happened to them? The PO must have done something. Of course, he was in prison and the saw was in a locker sale. huh. At least I can buy new ones.

Lesson learned, eh? Thanks for the info guys.

-- Beer, Beer, Thank God for Beer. It's my way of keeping my mind fresh and clear...

View Mickey Cassiba's profile

Mickey Cassiba

312 posts in 1683 days


#5 posted 05-06-2012 12:42 PM

The locking knob would be a wing shaped handle in the center of the elevating Handwheel(also the tilt handwheel). Inside the hollow shaft that the knob screws into are two steel balls that press against the inside if the shaft locking the mechanism in place. The servicenet site is a little wonky, or I’d post a screenshot of the detail. What model number have you got?
Love your signature BTW ;P

-- One of these hammers oughta fix that...

View Milo's profile

Milo

851 posts in 1971 days


#6 posted 05-06-2012 01:21 PM

Mickey,

Yup, the knobs are missing. Now I have to get some. Think I’ll post a request here, and contact some other places.

Later!

—Unfortunately, I was diagnosed with Type II in January, so my consumptions has dropped DRAMATICALLY. Of course, my weight did too, so, small blessings, eh?

-- Beer, Beer, Thank God for Beer. It's my way of keeping my mind fresh and clear...

View Mickey Cassiba's profile

Mickey Cassiba

312 posts in 1683 days


#7 posted 05-06-2012 02:08 PM

Small blessing to be sure….but that means more for me.
Good luck my friend!

-- One of these hammers oughta fix that...

View Milo's profile

Milo

851 posts in 1971 days


#8 posted 05-07-2012 10:38 PM

More for you! Bah! We do NOT want to discuss my tolerance levels! ;)

-- Beer, Beer, Thank God for Beer. It's my way of keeping my mind fresh and clear...

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