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small mod on 52'' ztr hydro walkbehind mower - just one of new pumps - bigger than two stock : )
(pumps - 21cc hustler SZ vs 10cc stock)

first stage - to replace pumps with with minimal changes to hydraulic syst. and make it run, - cooling, reconfiguration of hydraulics system, controlls, etc - later

couldn't resist to mod controls, fiberglass and CAD systems widely used : ))) (Cardboard Added Design)

stage one - completed, tests show - hydro works good, as expected; controls need to be changed

now work can be continued on hydraulics reconfiguration, adding cooling, redesign of controls, sulky needs be able to wiggle it's tale a bit, add seat : )) , etc
any ideas - welcome
:smile:

some more pics

demhustler said:

some more pics
View attachment 13310

Click to expand...

I like the tires on it! :thumbsup:

: )))
20'' atv instead 16.
i expected to grind spikes bit down - but amazingly, despite such huge spikes - no turf damage ...

lawn mower fanatic said:

I like the tires on it! :thumbsup:

Click to expand...

: )))))
how 'bout those...?
: ))))

25'' instead of 20. stock fenders had to go...
about 13 mph (stock -10) but it beets 15 mph hustler super-z on 50 yard one way, u-turn and back - with or without turf damage.
this frontmount baby turns like on rails, like compass, while midmount have to slow down very early, or slides and skids through the turn

demhustler said:

: )))))
how 'bout those...?
: ))))
25'' instead of 20. stock fenders had to go...
about 13 mph (stock -10) but it beets 15 mph hustler super-z on 50 yard one way, u-turn and back - with or without turf damage.
this frontmount baby turns like on rails, like compass, while midmount have to slow down very early, or slides and skids through the turn

Click to expand...

WOW....those are some BIG tires on a nice mower!

lawn mower fanatic said:

WOW....those are some BIG tires on a nice mower!

Click to expand...

well, if you Lawn Mower Fanatic, then you might like this sweet little thing. His name - Mister Softee. With his slightly oversized tires (gas tanks been risen-up) he's so soft and smooth on the ground with his baloons-wheels, he just doesn't lieve any tire marks demage, even with vacuun unit on.


He's very old, with us - forewer, still runs nice and sweet as beck-up unit. We have another Exmark - it's just an "Exmark", but nobody calls Mr.Softee differently : - "Take Mr.Softee today" or "Who stole pigtale from Mr.Softee?!"

demhustler said:

well, if you Lawn Mower Fanatic, then you might like this sweet little thing. His name - Mister Softee. With his slightly oversized tires (gas tanks been risen-up) he's so soft and smooth on the ground with his baloons-wheels, he just doesn't lieve any tire marks demage, even with vacuun unit on.

Click to expand...

That looks like a really nice machine!! :thumbsup:

spacers added and wheel/wheelmotors shifted on the frame - first and second upgrade