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22nd September 2014, 03:59 PM #1Novice
- Join Date
- May 2014
- Location
- Melbourne
- Posts
- 19
how to remove blade on GMC 800w drop saw?
I got this fair neglected drop saw from a friend and bought an irwin 60T blade for it. he tried removing the steel guard for whatever reason. because it looks unsafe having it there i will be removing it as well. Any idea how to remove the blade? I don't have an angle grinder claw to fit it. I tried vice grips, clamps, everything. it won't budge. There is also no button anywhere to lock the blade while you undo it. Am I meant to keep the bit with the pins stationary as I undo the 13mm nut?
Any help would be great. I have a $50 blade just sitting in the shed now :/20140922_142728.jpg
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22nd September 2014, 08:45 PM #2Intermediate Member
- Join Date
- Apr 2009
- Location
- Tas
- Age
- 66
- Posts
- 38
http://doc.servotool.eu/documents/82...%200209-20.pdf
I think is similar. It uses a 2 prong wrench like angle grinder wrench to hold shaft while undoing nut clockwise (LHT) using a standard spanner. That would be my best guess, as all the ones I have used have a spindle lock, usually between the motor & guard, or a flat machined on the shaft to take a spanner.
But I'm guessing.
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22nd September 2014, 10:01 PM #3Novice
- Join Date
- May 2014
- Location
- Melbourne
- Posts
- 19
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22nd September 2014, 10:26 PM #4Intermediate Member
- Join Date
- Apr 2009
- Location
- Tas
- Age
- 66
- Posts
- 38
The thread would be made to self tighten. You can get adjustable or universal angle grinder wrench / key / spanner from most hardware stores including the big green shed.
You could try a couple of descent size nails at the correct spacing through a block of wood as a quick test (drilling the holes for accuracy). Just use suitable size nails and grind or saw off the points to give best contact with the holes and leave enough space to fit your spanner in-between. Might work and save you $10.
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23rd September 2014, 09:25 AM #5Awaiting Email Confirmation
- Join Date
- Feb 2008
- Location
- Peakhurst
- Age
- 67
- Posts
- 768
It's just like my old Ryobi. It's a LH thread.
I lost that special tool that held the washer.
So I put a block of wood under the blade and held the handle down and undid the nut with a standard ring spanner.
The blade wants to turn clockwise and thus digs into the wood holding it from turning.
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23rd September 2014, 02:41 PM #6
I agree with Bleeder. Just put your block of wood on the other side of the blade when you want to tighten it again.