I took the guard off the 10" Makita Mitre saw (spring loaded)!

Ask them direct for a parts schematic

Mitre Saws

GMC Tools https://www.gmctools.com > en-GB > Saws > Mitre Saws
Metal fixed guard, arm assembly, mitre table and fence. Bench mountable base. Folds down for compact storage. Includes clamp, dust bag, 2 hex keys, ...

Global Machinery Company Saw Product Support

Manuals Online http://www.manualsonline.com > support > gmc-1 > saw
I need a blade guard for a GMC compound miter saw. Global Machinery Company Saw MS 1015 AUL ... I need parts list for Global machinery Company mit.

Parts

Global Machinery https://www.globalmachinery.com > parts
We offer a full line of replacement parts to repair and service all of the equipment that we sell and rent. Not only are we able to supply you with the specific ....

Go to: http://www.ereplacementparts.com/makita-ls1040-miter-saw-parts-c-97_98_99_323.html. They also have a video on how the replace the blade. Look closely at the parts diagram to see how and where the spring fits and fit accordingly.

I don't have this particular model in my shop right now but almost all circular saws work like this. From the blade side of the saw, the spring attaches to a hole in the blade guard usually around the two to three o'clock position. With the blade guard correctly positioned on the saw, wrap the spring clockwise around the bottom of the hub and back up the nine o'clock side. There is another hole or tab inside the top of the upper blade guard somewhere around the twelve to two o'clock position. Hook the end of the spring there and test the guard for free movement throughout it's range of motion.

There is an 8mm bolt on the front of the guard. Loosen/remove this and the central guard mount will drop slightly. Behind the metal guard is a slide lock for the blade spindle. Push the lock bar and turn the blade untill it catches and is held solid. Then remove the blade fixing bolt and bobs your uncle. Alternativly, with all mitre saws, you can just pop an old bit of wood on the work base and then use the spannrer/allen key supplied to turn the blade so it bites into the wood as if you are trying to cut it. This will hold the blade steady and you will also be turning the bolt in the right direction.

Sound like you have a spring missing or streched out

I have changed the blade a few times, There is no need to remove the spring, etc. All you do is remove the bolt holding the guard and rotate it counter clockwise and it exposes the blade.
I am looking for parts for this saw. Anyone know where to get them?

what spring? do you mean the one in the guard? if so you don;t have to remove it to change the blade, give me the exact model number or you can go to makitatools.com and download a breakdown that shows the reassembly of the guard, it is not that hard, and also you can download an owners manual that shows the proper blade replacement procedure.

I am assuming that you have some type circular saw?
Most popular saws use a spring to return the guard,with the saw unplugged raise the guard and see if the spring is there(you may need to take off the blade) if it is not there,replace with proper spring.one end of the spring will hook onto the fixed 1/2 of the guard the other to the front of the moving guard(consult manual if possible).once this is done insure that the guard mover freely and is not in the way of the blade.Replace the blade in proper direction check guard again for proper travel,make sure everything has been re-tightened .
If the spring is there check for material build-up or debris that is causing
guard not to move,remove blade clean debris or obstruction,replace blade and check for proper operation.Also visually inspect where the moving guard is attached to the saw for any unusual marks or wear this could be a sign that some type of unsafe situation exists,if this happens refer to a pro to fix or buy new never use a saw without a properly working guard,it took 141 stitches to repair my friends leg.

here ya go Bob hope it helps
http://www.ereplacementparts.com/makita-ls1030n-miter-saw-parts-c-97_98_99_321.html

my husband had trouble replacing the spring that goes in the plastic safety cover....he just eliminated the spring and it works just fine...thankyou for responding....L Martinez