Wildguzzi.com

General Category => General Discussion => Topic started by: dguzzi on February 12, 2019, 09:42:39 AM

Title: tip support (scissor lift)
Post by: dguzzi on February 12, 2019, 09:42:39 AM
I'd like to support bikes on my scissor lift from the ceiling. I don't have room for outrigger braces on the floor. Problem is the ceiling joist are 2x4 and I don't think that's strong enough (maybe some bikes)
  You guys have ideas about that?
Title: Re: tip support (scissor lift)
Post by: kirb on February 12, 2019, 10:03:50 AM
Hang bikes from 2x4?

Yea, I wouldn't do that.
Title: Re: tip support (scissor lift)
Post by: dguzzi on February 12, 2019, 10:36:35 AM
Not hang, just tip prevention. I wouldn't either but I'd like ideas to better support.
Title: Re: tip support (scissor lift)
Post by: bigbikerrick on February 12, 2019, 12:31:56 PM
If you are going to use the ceiling only for support, you can attach a square of 1/2" plywood to the ceiling joists to spread out the load to a few of the joists/ trusses, and attach hooks with big fender washers to the plywood as attachment points. I used a piece of plywood about 2'X3' in size, painted like the ceiling, you hardly notice it.
  Thats what I did with mine, and I have actually "hung" a few sport bikes from those hooks for front tire removal, hanging the front end using tie down straps, from the hooks.
Rick.
Title: Re: tip support (scissor lift)
Post by: dguzzi on February 12, 2019, 12:36:08 PM
Thats the best I've heard yet, most say 2x8 across the top, I like the plywood idea.  Thanks Rick!
Title: Re: tip support (scissor lift)
Post by: Perazzimx14 on February 12, 2019, 01:04:05 PM
If I'm reading this correctly you have a lift table and you want to support the bike from tipping side to side from the ceiling when it is elevated?? If so DO NOT do it. The 1st time you hit the down pedal on the lift and forget to remove the overhead support straps you're gonna have a bike hanging like Brooks Hatlen on the Shawshank Redemption. Tie the bike to the lift if your worried about tip over. Also keep trash cans, rolling shop chairs and the like from around the lift. Those little bastards have a way of getting under the overhang of the lift and when you the down pedal as soon as they contact the chair, trash can or whatever they will tip the whole lift over. 
Title: Re: tip support (scissor lift)
Post by: dguzzi on February 12, 2019, 01:53:12 PM
I'd be more worried the whole lift would go over just from wrenching or pulling or prying.
Title: Re: tip support (scissor lift)
Post by: kirb on February 12, 2019, 02:04:06 PM
What is your bike lift?

My handy lift has a square tube at the base that allows a 1" pipe to be run through to serve as an outrigger. You could fab something similar...depending on how cheap the lift is made
Title: Re: tip support (scissor lift)
Post by: Roebling3 on February 12, 2019, 02:13:06 PM
Can you forward a picture or tell us the manufacturer of your 'scissor lift'? Including load capacity?
Are you raising the bike by jacking at its sump/gear box?
It's very hard to safely raise an unstable MC with a single contact point jack.
Hanging the bike and trying to stabilize & balance it from 3 or more stress points is a problem. Be certain help is available.  R3~ 
Title: Re: tip support (scissor lift)
Post by: dguzzi on February 12, 2019, 03:50:41 PM
US Scissor lift brand  2000 lbs cap.  its very good at lifting but its 20" wide.   Very stable but I don't want to tempt fate.
Title: Re: tip support (scissor lift)
Post by: Rusnak_322 on February 12, 2019, 03:59:46 PM
I have this bolted to my HF table and I use the eye hooks at the end as tie down points. per the website it looks like they are 35" wide. I know that they are wider then the table.

https://www.harborfreight.com/1800-Lb-Capacity-Motorcycle-StandWheel-Chock-61670.html

this pic isn't mine, but is basically the same.

(http://i1.wp.com/www.hdforums.com/forum/attachments/touring-models/95333d1265941649-hf-lift-and-wheel-chock-dsc_0002.jpg?resize=660%2C438&ssl=1)


Title: Re: tip support (scissor lift)
Post by: kballowe on February 12, 2019, 07:04:58 PM
I have this bolted to my HF table and I use the eye hooks at the end as tie down points. per the website it looks like they are 35" wide. I know that they are wider then the table.

https://www.harborfreight.com/1800-Lb-Capacity-Motorcycle-StandWheel-Chock-61670.html

this pic isn't mine, but is basically the same.

(http://i1.wp.com/www.hdforums.com/forum/attachments/touring-models/95333d1265941649-hf-lift-and-wheel-chock-dsc_0002.jpg?resize=660%2C438&ssl=1)

Those Harbor Freight wheel chocks are the snizzle.
.
.
.
(https://c1.staticflickr.com/5/4830/31942297238_d1618ddb4f_b.jpg)
Title: Re: tip support (scissor lift)
Post by: Brand X on February 13, 2019, 01:18:53 AM
I don't use a rafter. I have lifted over 5000 pounds, and just bought a Beam clamp tested to 11,366 Pounds.. In case I ever get a guzzi again.. :evil:
(https://i.ibb.co/ThQcVxC/PICT0024.jpg) (https://ibb.co/ThQcVxC)

(https://i.ibb.co/1mG1Rnr/PICT0031.jpg) (https://ibb.co/1mG1Rnr)
Title: Re: tip support (scissor lift)
Post by: Guzzistajohn on February 13, 2019, 01:48:26 AM

(https://i.ibb.co/ZVQJNkk/image.jpg) (https://ibb.co/ZVQJNkk)

Attached to uni-strut over joists
Title: Re: tip support (scissor lift)
Post by: Sheepdog on February 13, 2019, 07:35:34 AM
My shop isn’t really large enough for a lift. I leave my bike on the center stand and use one of these:

(https://i.ibb.co/gM5CpFH/9-A2-CB2-A8-3194-4279-A6-D7-A0-F4-D837-BD79.jpg) (https://ibb.co/rGCJSfT)

I use an old Subaru scissors jack to support the front of the bike when removing the front wheel.
Title: Re: tip support (scissor lift)
Post by: dguzzi on February 13, 2019, 08:12:14 AM

(https://i.ibb.co/ZVQJNkk/image.jpg) (https://ibb.co/ZVQJNkk)

Attached to uni-strut over joists
    That unistrut has something above the joists too?  Not bad!

Sheepdog, I do that in the basement, but since I have the lift (free) I use it!
Title: Re: tip support (scissor lift)
Post by: Guzzistajohn on February 13, 2019, 12:42:49 PM
    That unistrut has something above the joists too?  Not bad!

I wondered if anyone would even look at that. What you're seeing is actually a patient lift from a former job. Unitsrut is above the ceiling joists running perpendicular. 1/2" all thread connects strut to rail. I hook a drop chain hoist to the trolley.

Sheepdog, I do that in the basement, but since I have the lift (free) I use it!
Title: Re: tip support (scissor lift)
Post by: Roebling3 on February 13, 2019, 01:31:01 PM
I think the larger risk for you is the very high center of gravity. i.e. the MC atop a very light weight lift. IOW: If the lift were bolted to the floor it would be more safe. Regardless of its published capacity raising a MC weighing more than 300#'s 18" or more off the floor, on that lift in my view, is risky. The strap iron scissor arrangement, when extended can easily twist from side loads (R&R rear wheel?, exhaust?), deform and the lift won't retract. I've seen the demo. 
My earlier garage had 2x12' on 12" centers. I spanned three joists with a length of 3" iron pipe and hung a come a long. I'd hang either end of a Daytona, LM, others from it. A bottle jack and a soft wood block stopped the swinging. A roll around seat is your friend. Keep your CG low.  R3~ 
Title: Re: tip support (scissor lift)
Post by: dguzzi on February 13, 2019, 03:47:57 PM
This lift weighs ~500 lbs. its not like the HB style. Bolted to the floor would be good but not doable here. I understand the center of gravity concept, its not teetering on the edge of doom, in fact quite stable. I just want that little extra....  I think I have some good ideas.  Appreciate all the responses!