Post by @moira@mastodon.murkworks.net

So some time ago I was given an old 7 1/4" circular saw and I have taken it all the way apart. I'm going to put it back together. It should work fine and mostly even worked before, but:

1) didn't trust it because it's scary looking and draws 10A and someone previous stripped a screw head

2) the platform (black in photo) isn't flat

3) the blade guard sticks and doesn't flip back to protect position ever (despite having a spring)

4) the platform seems to be connected via some kind of pin or something and not a screw which gets to

5) questions! In next toot.

(ps: this is not my photo I didn't take one before disassembly (I am bad at that) so ganked one off ebay)

#tools #circularsaw #diy #repair

#circularsaw #tools #repair #diy

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Solarbird :flag_cascadia:

@moira@mastodon.murkworks.net 2 hr. ago

1) what kind of grease does this want? I have good quality Park Tool bicycle grease but does this want something different/better at handling, idk, high temperature? (see photo)

#tools #circularsaw #diy #repair

Closeup of the spiral gear on the motor shaft and the large gear which connects to the blade to spin it. It's packed with what one might call deeply vintage grease which is less lubricant and more glue now.

Solarbird :flag_cascadia:

@moira@mastodon.murkworks.net 2 hr. ago

2) is this remove/replaceable and/or can I replace it with a bolt? Because it would be a LOT easier to flatten the plate if I didn't have a giant chunk of the rest of the saw casing hanging off it

#tools #circularsaw #diy #repair

some sort of hollow pin connector connecting the saw's pate with the saw'sbody and it's just a curled piece of metal instead of something reasonable that I know how to remove and replace, with a red arrow pointing to it for clarity

linjari

@linjari@mastodontti.fi 1 hr. ago

@moira that looks like Spring pin.

https://www.mcmaster.com/products/spring-pins/spring-pins-2~/

I think putting a bolt in there could be okay, but spring pin could be reused or replaced.

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Solarbird :flag_cascadia:

@moira@mastodon.murkworks.net 2 hr. ago

Last question at the moment:

4) Does anybody know when this thing might've been made? A lot of them are floating around still so clearly they're durable.

I'm mostly wondering whether the paint on this has lead in it because I'm thinking of repainting it and am wondering whether to sand it first or not.

#tools #circularsaw #diy #repair

Still Blaming It on the Tetons

@pommesdeterror@mastodon.social 1 hr. ago

@moira particulate masks are never a bad idea when sanding, but it's probably an enamel paint

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Solarbird :flag_cascadia:

@moira@mastodon.murkworks.net 2 hr. ago

3) How bad is it that this little wavy ring on the far end of the motor is broken? Obviously it's not good. I have no idea where or how to source a replacement but do I really need to?

#tools #circularsaw #diy #repair

A wavy spring washer of some sort which is broken in one spot. In this photo it's held apart to highlight the broken spot; in real life, the two ends of the break sit on basically the same plane.

Still Blaming It on the Tetons

@pommesdeterror@mastodon.social 37 min. ago

@moira yeah that should be replaced, it's a spring washer that keeps things from vibrating loose

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the Stripey Goodness

@stripey@meow.social 2 hr. ago

@moira that's a kind of spring washer; you may find a suitable replacement on McMaster

1+ more replies

Proto Himbo European

@guyjantic@infosec.exchange 2 hr. ago

@moira I am NOT an engineer or mechanic, etc. but I personally would try to replace it with a bolt, as long as the bolt head or other part didn't get in the way of work or anything moving. I'd use something anti-vibration to fasten it like a nylock nut and/or some loctite.

Buttered Jorts

@ajn142@infosec.exchange 2 hr. ago

@guyjantic @moira looks like a roll pin. They can be finicky to replace, you need a punch of the same diameter. If you use an undersized or conical punch, it will tend to peen the end of the pin outwards, locking it into place. Drilling can also work, but you're dealing with spring steel which is generally hard and prone to hardening if heated and allowed to cool.

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