to tall?/

gus · Post by **gus** » Fri Mar 14, 2014 2:06 pm

This crawler must have been designed for a short legged man. Any good way to get more leg room?? I've been thinking about raising the seat. Anyone done that or??? It's all the way back plus a little and pinned.

Post by **Lavoy** » Fri Mar 14, 2014 2:45 pm

Which crawler, which seat?
Lavoy

gus · Post by **gus** » Fri Mar 14, 2014 6:05 pm

420, std seat

jtrichard · Post by **jtrichard** » Sat Mar 15, 2014 12:29 am

look at pics 1 and 2 this is how my 2010 is done not sure how a 420 is mounted hope it helps http://www.jdcrawlers.com/messageboard/ ... highlight=

Ray III · Post by **Ray III** » Sat Mar 15, 2014 5:24 am

My 420 has an adjustable seat bracket (3 sets of bolt holes), in the highest position it looks to be a couple inches higher than yours.

Definitely a child size machine, good thing I'm short.

Post by **Lavoy** » Sat Mar 15, 2014 10:16 am

That is a tractor rockshaft on a crawler, not sure how that would compare in position to a crawler rockshaft. Only option there is to make spacers and move the seat slide up and back.
Lavoy

Stan Disbrow · Post by **Stan Disbrow** » Sat Mar 15, 2014 12:49 pm

Hi,

Yes, looks like a 420w rockshaft. That would put the seat mounting something like 3" closer to the dash compared to where the seat brackets put it.

I know because I had an extra 430w rockshaft and was thinking about putting on my 420c. I made a bunch of measurements and came that conclusion.

I know that the stock 420c brackets put the seat in the same place relative to the crawler 3pt lift arm unit.

Stan

gus · Post by **gus** » Sat Mar 15, 2014 1:10 pm

Stan Disbrow wrote:Hi,

Yes, looks like a 420w rockshaft. That would put the seat mounting something like 3" closer to the dash compared to where the seat brackets put it.

I know because I had an extra 430w rockshaft and was thinking about putting on my 420c. I made a bunch of measurements and came that conclusion.

I know that the stock 420c brackets put the seat in the same place relative to the crawler 3pt lift arm unit.

Stan

No, the seat is on the original frame in the original position. It is slightly further back on the rails than the original pin holes allowed. Yes that is a tractor rock shaft set up and the seat is quite a ways back over it. The seat was positioned normally and the rock shaft/adapter plate was built to fit under it.

I think the simple thing is to do as Lavoy says and build a couple risers. I will have to do some trial work to see how it affects the hand controls. Might need extensions on them too.

This shows the seat frame and original seat brackets. The 3pt operating cylinder is under the seat.

Post by **Lavoy** » Sat Mar 15, 2014 3:28 pm

For a quick simple riser, you could put four short pipe nipples under the slide to see if vertical height is enough. If not, then I would use some 1" box tubing to move the holes back as far as you need, then put risers on from there.
Lavoy

Stan Disbrow · Post by **Stan Disbrow** » Sat Mar 15, 2014 4:26 pm

Hi,

Ah. That pic angle is a lot better. I see what you made happen there. Neat.

Stan

gus · Post by **gus** » Sat Mar 15, 2014 4:36 pm

Lavoy wrote:For a quick simple riser, you could put four short pipe nipples under the slide to see if vertical height is enough. If not, then I would use some 1" box tubing to move the holes back as far as you need, then put risers on from there.
Lavoy

You gave an idea. I could just slip some 2X4's under the bottom cushion and get a feel for it. When the height feels good, measure and make permanent risers. I tend to think going up a few inches should make a lot of difference.

Post by **Lavoy** » Sun Mar 16, 2014 9:59 am

420's with 90 loaders actually had about a 3" rise done with wood from the factory.
Lavoy

gus · Post by **gus** » Sun Mar 16, 2014 12:30 pm

Lavoy wrote:420's with 90 loaders actually had about a 3" rise done with wood from the factory.
Lavoy

That's what's sitting outside for my next project. I'll take a look at it. I got in on 5 pallets and one big chunk and I haven't gone over it that closely other than to make sure I got all the parts.

No blocks. I went out and looked at the seat frame and pile of parts. Could be they were tossed but the seat frame is near perfect.

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