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Forklift Build-Option 2

home built fork lift

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#1 KennyP OFFLINE  

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Posted March 10, 2017 - 04:35 PM

Since I am getting a small amount of flak for using my JD F725 as a forklift, I am offering up Option 2! I have a JD 317 frame and both axles. That's it. Now I have a Kohler Magnum 16 that has no PTO shaft on the crank. (Flush to block). I have a wheelchair lift from a van, complete with it's own hydraulics unit. I can see I can make this work. Main issue would be steering.

Thinking about a hyd. powered tiller steer. Not sure if that would work. Anyway, hook a cylinder to the axle and use a valve with a long handle to adjust the cylinder. What do you all think?

The forklift would be mounted off the rear end with the seat mounted backwards. It would not be a fast mover in reverse, but I can put 26-12's on to help that some. Thinking 18-8.50's for the front (now rear). All 4 ply tires. The lift should handle 300 lbs., maybe more.


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#2 boyscout862 OFFLINE  

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Posted March 10, 2017 - 04:56 PM

Kenny, how high do you intend to lift? I have a homemade fork set on the back of my Simplicity 3310. It will lift 250#(me) to 6" above the ground. The plans for it came from simpletractors and was made by a member there. If you are interested I can take some pics and find the plans for you.

I am concerned about the height of lift as machines get real tippy. Good Luck, Rick


Edited by boyscout862, March 10, 2017 - 05:02 PM.

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#3 KennyP OFFLINE  

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Posted March 10, 2017 - 05:05 PM

Kenny, how high do you intend to lift? I have a homemade fork set on the back of my Simplicity 3310. It will lift 250#(me) to 6" above the ground. The plans for it came from simpletractors and was made by a member there. If you are interested I take some pics and find the plans for you.

I am concerned about the height of lift as machines get real tippy. Good Luck, Rick

When moving about, just enough to clear the ground. But this will lift high enough to raise a chair to interior van height. That I have to figure out yet. I know I will have to add counter weight at the steering axle. It would be good for loading something heavy into a pickup maybe.


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#4 ducky OFFLINE  

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Posted March 10, 2017 - 05:52 PM

Kenny you are right about caring the load low and lifting when in position. If you could find 6 or 8 ply tires and use high air pressure in then that would add to the stability.  Duals would be another option.

Yes your steering will work as you stated with a lever.  Just make sure your valve close both A and B ports when in neutral to prevent steering drift.  I would also run restrictors in the lines to keep the movement slow.


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#5 Gtractor ONLINE  

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Posted March 10, 2017 - 05:54 PM

Option 1


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#6 KennyP OFFLINE  

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Posted March 10, 2017 - 05:58 PM

Kenny you are right about caring the load low and lifting when in position. If you could find 6 or 8 ply tires and use high air pressure in then that would add to the stability.  Duals would be another option.

Yes your steering will work as you stated with a lever.  Just make sure your valve close both A and B ports when in neutral to prevent steering drift.  I would also run restrictors in the lines to keep the movement slow.

Thanks Don. Wasn't sure if that was feasible. I have some restricter fittings I could use. What kind of pressure does a Sundstrand make for the hydraulics?


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#7 KennyP OFFLINE  

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Posted March 10, 2017 - 06:00 PM

Option 1

MY vote also! Has power steering. Seat faces the right direction. Just not sure if the axle would carry that much more weight.


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#8 DH1 OFFLINE  

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Posted March 10, 2017 - 06:47 PM

3 point forks.


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#9 KennyP OFFLINE  

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Posted March 10, 2017 - 06:58 PM

3 point forks.

Bad part is my 3-point would have issues just picking up the chair lift, much less any more.


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#10 glgrumpy ONLINE  

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Posted March 10, 2017 - 08:51 PM

Sounds dangerous making this rig.  Thought you had a loader tractor?  Forks can be put on them, OR, clamp on forks now days too. The rear lift from wheel-horse noted sounds interesting, have to check on that one myself.


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#11 James Bosma OFFLINE  

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Posted March 10, 2017 - 11:04 PM

Quinte Flywheels 2014 127 1341041.jpg
 
Here is a picture of the one dad built using a Howard Commercial Mower, Hydro drive and rear steering
Dana rear end and have had over 1000 lbs on the forks
Only issue was steering with that much weight
Your biggest issue using the garden tractor will be oil capacity and pressure for the hydraulics
This unit has a direct drive hydraulic pump for lift and tilt
 
 

 


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#12 tater195 ONLINE  

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Posted March 10, 2017 - 11:23 PM

Sorry, but I am gonna have to throw the BS flag on that 1000# thing. This rig is rated for 1200# on the 3PH. The bale target should weigh 1000# by volume. It cant move it without the loader mounted and is pretty dicey without the mower deck.

20170310 221146

 

What you have there is basically a teeter totter 300# on the back will lift 300# on the front. If the wheels were moved forward 18", I could see the 1000#



#13 ducky OFFLINE  

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Posted March 10, 2017 - 11:55 PM

Thanks Don. Wasn't sure if that was feasible. I have some restricter fittings I could use. What kind of pressure does a Sundstrand make for the hydraulics?

Sundstrand runs around 700 PSI and can be turn up to a 1000 Psi before it will shear the drive pin on the charge pump.

You can make your own resistors out of washers and just drill for the flow rate you need. Place them in the cylinder under the fitting.


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#14 KennyP OFFLINE  

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Posted March 11, 2017 - 05:31 AM

Sounds dangerous making this rig.  Thought you had a loader tractor?  Forks can be put on them, OR, clamp on forks now days too. The rear lift from wheel-horse noted sounds interesting, have to check on that one myself.

No loader tractor, Gary.

 

Don, the cylinder has 1/4" pipe threads. No place to put washers there. Maybe at the valve, haven't pulled the fittings out of it. But I do have several restrictor fittings from the Ford parts.



#15 KennyP OFFLINE  

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Posted March 11, 2017 - 05:33 AM

 

 
 
Here is a picture of the one dad built using a Howard Commercial Mower, Hydro drive and rear steering
Dana rear end and have had over 1000 lbs on the forks
Only issue was steering with that much weight
Your biggest issue using the garden tractor will be oil capacity and pressure for the hydraulics
This unit has a direct drive hydraulic pump for lift and tilt

 

I will only use the GT hydraulics for steering. The wheel chair lift has it's own hydraulics.


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