Author Topic: Motorbike Lift Bench  (Read 5239 times)

Offline Biggles

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Re: Motorbike Lift Bench
« Reply #25 on: May 25, 2017, 05:50:15 AM »
Getting there and looking good. Now itís time to get the wire wheel out before the surfaces get to full of welds and things.  :coffee:

Offline one_rod

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Re: Motorbike Lift Bench
« Reply #26 on: June 20, 2017, 05:11:26 PM »
So, there's the finished mechanism.


Time to come down off the trestles, some temporary foot-plates under the jacks and the top deck resting in place.


The big moment arrives, time for a load test.
Not risking my precious motorbike to the thing just yet. So searched the shop for some random pieces of assorted heavyness.
The welder weighs about 60kg, the big leg vice about the same. So with the other bits and bobs it should be getting close to the mass of my Suzuki.


And all of it wafted into the air with ridiculous ease.


Too much ease if anything. That foot pedal can easily be half the current length. Doesn't need as much leverage as first though. The lowering control needs some re-design too.

Onwards and upwards...
"A season ticket for the one way ride..."

Offline Fredbare

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Re: Motorbike Lift Bench
« Reply #27 on: June 21, 2017, 11:57:21 AM »
Well done and thanks for sharing.

John

Offline krv3000

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Re: Motorbike Lift Bench
« Reply #28 on: June 23, 2017, 06:32:34 PM »
hi and a job well dun

Offline vtsteam

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Re: Motorbike Lift Bench
« Reply #29 on: June 23, 2017, 10:09:29 PM »
Excellent, man!  :bow: :bow: :beer:
I love it when a Plan B comes together!
Steve
www.sredmond.com

Offline one_rod

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Re: Motorbike Lift Bench
« Reply #30 on: July 25, 2017, 04:25:28 PM »
So, a little more progress.

As previously mentioned, the pump-up lever was much too long, and as I had the angle grinder out it seemed the ideal chance to make it removable too. Having it sticking out like that would be a definite trip hazard when loading bikes on the bench.
Cut the cross shaft and made this slightly-tapered square boss on the end.


Then put this square tube on the lever end of the shaft.


Shortened the lever itself, and this is how it all fits together. Holds on firmly enough for vigorous pumping, but comes off with a gentle pull.


Improved the lowering release too. And decided to make that removable as well.


The connection between the lever and the shaft is hollow (obviously) and the blob of weld holds a pin which engages with the slot you can see in the previous photo. The Zebedee spring holds the improvised clevis into the lowering valve, but allows enough compliance as the ram moves through it's arc. And, yes, I'd run out of tread plate so had to make my own...


So that's about it, as far as fabrication goes. Time to strip down, tidy a few welds and start painting.
"A season ticket for the one way ride..."

Offline howsitwork?

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Re: Motorbike Lift Bench
« Reply #31 on: July 26, 2017, 06:08:10 PM »
Very nice and a good project write up as well. Please let us see the end result in all it's glory one rod!

Ian

Offline one_rod

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Re: Motorbike Lift Bench
« Reply #32 on: September 25, 2017, 05:34:54 PM »
So, painting.
Hate it.
For me it's always the  least favourite part of any job.

I will, however say a quick word for this stuff.
20170731_182055 by Mick, on Flickr

Based, apparently on Phosphoric Acid, it converts rust back into metallic iron, keys and passivates  the surface ready for the proper paint. Eye-wateringly expensive, but saves a lot of time with the wire brush / emery paper etc.

Goes on as a thin, milky emulsion. A little goes an awfully long way. Turns blue as it's working.
20170731_185127 by Mick, on Flickr

Then to black as it's finished.
20170731_195513 by Mick, on Flickr


One coat of zinc-rich primer and two of good quality machinery enamel. My shop is a damp old place and untreated steel will rust before your eyes. Boring but necessary.
Strangely, paint is turning out  to be the most expensive part of this whole project.

Time to start bolting it all back together.
20170910_110111 by Mick, on Flickr

Top plate on to be drilled, ready for bolting in place.
20170916_201803 by Mick, on Flickr

And yet more bloody paint.
20170923_134400 by Mick, on Flickr

Nearly there...
"A season ticket for the one way ride..."