Help needed on a Excalibur-21

[Brian Swope]

Good day Everyone,

Just got me a Excalibur-21 and was really excited to get started scrolling but have found a problem with the saw. When I start up the saw and the blade is running the lower blade clamp is hitting the lower blade guard. I have tried to bend it up out of the way but have had no luck, has anyone ever run into this problem, or have a solution to fix this? Thanks in advanced for any help with this problem.

Brian

[OCtoolguy]

Is the upper arm adjusted to where it is parallel with the table? It sounds like it might be way out of whack.

[Scrappile]

I think most remove the lower blade guard.  But wait for more responses to see if I am correct.  It has been several years Since I have had an excalibur.

[hotshot]

I agree with Scrappile on this one.  My green ex21 doesn't have that blade guard.  I would remove it.  I would also remove the top blade guard if you have not already.

Edited May 16, 2024 by hotshot

[NC Scroller]

First remove the guards, top and bottom.  Then put a blade in and tension it.  Next turn the large knob in the back until the blade is perpendicular to the table.  If it still is a problem your saw may be defective.

[hotshot]

Adding to Scott's comment, there is one other change related to blade travel.  It won't fix a "collision issue" but it is important in relation to adjusting the "aggressiveness of the cut".  Don't do this unless you are getting a lot of foward and back motion, after the arm is leveled.   Loosen the bolts around the motor, with speed at it's lowest setting, turn the motor until yout find the sweetspot, where the blade forward and back motion is least.

[Denny Knappen]

I also suggest removing the blade guard.  Very easy, just remove the table to get access to the guard.

[Brian Swope]

Thanks to all who replied,  I have made sure that the upper arm is parallel to the table and if I lift the lower blade guard it's fine. So I think I will follow the trend and remove it as i can't see it being to dangerous. Thanks again

Brian

[KellisRJ]

 A year later I have the exact question! Thanks everyone for their assist. 

My saw had a huge mark down from poor return packaging but I took the sellers word the saw works. Found several problems and the seller decided to refund and not bother with a return. I'm still working out what is "normal" or possibly bent components. About 3 seconds after starting the lower blade guard starts vibrating and then contacts the lower blade clamp with a resultant not good sound. Pushing up on the guard stops the vibration and the saw is really quiet.

So maybe this is the final fix. I have a  complete upper arm tensioner coming because the shaft is bent. I've been able to check the arm level, and that's good. 

So yea! Going to see if I can use a right angle screwdriver to remove the guard before taking the table off. 

Appreciate the shared experiences. 

Ron

Edited August 1, 2025 by KellisRJ
Minor correction. Ops.

[OCtoolguy]

I have removed every guard from every tool I own. It makes me be more alert and not depend on things that either don't work or just plain get in the way. So far I have all my digits and everything I was born with.

[KellisRJ]

Took care of one major vibration, again thanks all. I don't know what are noises/vibrations are "normal". but not going to hijack the thread. 

Ron