Author Topic: Dumb mower  (Read 10924 times)

mr.mindless

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Re: Dumb mower
« Reply #75 on: October 13, 2021, 09:55:39 PM »
It’s now a week flat instead of a day flat. Will have to pull it again. Went from 15 to 11.5psi in an after dark rip roaring record setting 1.9 hour complete mow.
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mr.mindless

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Re: Dumb mower
« Reply #76 on: May 08, 2022, 01:15:39 PM »
about to tear into the transaxle. actuating the H-N-L shifter directly does not feel broken. With cold fluid after sitting about 18 hours, the travel control does load up the engine.

No funny noises at all, but it will not move.

No funny feelings or noises when it stopped either, and no preceding abuse.

Found a service manual directly from Jacobsen, its diagnostics for "will not move" say only:
a. Differential bevel gears broken.
b. Stripped teeth on gears.
c. Broken input pinion.


there is no PTO cover or other viewing option unfortunately, so this is just about a complete teardown :(
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mr.mindless

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Re: Dumb mower
« Reply #77 on: May 08, 2022, 01:17:04 PM »
I just added a bunch of slime to that same right side tire before I started mowing yesterday, it was flat again.
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mr.mindless

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Re: Dumb mower
« Reply #78 on: May 08, 2022, 03:08:55 PM »
Eaton model 11 hydrostatic transmission output shaft sheared.

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mr.mindless

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Re: Dumb mower
« Reply #79 on: May 08, 2022, 03:10:03 PM »

Some disassembly required
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mr.mindless

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Re: Dumb mower
« Reply #80 on: May 08, 2022, 04:40:08 PM »
I have not been able to find the part or a part number for this output shaft yet. Concerning…

OD is just under 3/4, minor dia of the splines is about .535

Ratings on this Eaton model 11 range to 20hp. I’m supposed to be 22hp and have turned it up a little. That doesn’t seem great, either.



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mr.mindless

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Re: Dumb mower
« Reply #81 on: May 08, 2022, 06:15:05 PM »
Ebayed a complete used model 11 trans for like 280 with tax and ship. Silliness.

I bet that part would retail for 100+ anyway as new old stock. Probably unsellable trans without a good output shaft, but I’ll try… definitely feel like I should have a spare output on the shelf right now and plan send the whole unit with stock size tires if it happens again. Will have to keep an eye out for cheap spares I guess.
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mr.mindless

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Re: Dumb mower
« Reply #82 on: May 15, 2022, 09:50:48 PM »
Notably bad packing job on the eBay trans but no damage and part was a match.

Seemed to take forever to put back together but no issues and it’s operating great.
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mr.mindless

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Re: Dumb mower
« Reply #83 on: June 05, 2022, 02:32:53 PM »
This worked pretty well. I kept the Jacobsen in low range the whole time, hopefully saving load overall on that tiny transmission output, and finished my first mow with this setup about half an hour quicker than usual. Done right, I bet I can get to 2hr instead of 2:45-3.




I need to make some adjustments and deck repairs. It operates fully on its own, hydrostatic drive. The oil looked like SHIT: very shiny. So maybe the Kohler is on its way out, maybe just neglected. I have changed it twice now. Splash lube/ no filter.
I picked it up CHEAP along with another similar unit (belt drive, not hydrostatic, but deck is perfect). I don’t think I could run with two of these at once without impressive complexity, so I’ll get the other running and probably sell whichever goes first. Turning left moves the towed mower off track quickly and leaves a stripe. If I wanted to run two wings like this I’d need to make a compensator of some sort to adjust track of the rear decks to compensate for the steering.

To run further forward in the middle of the wheelbase where off-tracking wouldn’t be an issue, all 4 wheels must be swivel casters. To do that, I could absolutely use these decks but in that case I’d want to drive them with two more hydraulic motors like the front deck. I don’t think I have the flow to do that and I don’t think I have an easy option to get more hydraulic power. I see very clearly why the machines with wing mowers are twice or more the size of this one.
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KingtheZJ

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Re: Dumb mower
« Reply #84 on: June 05, 2022, 05:49:11 PM »
I need more pictures of this setup please

M4wdFab

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Re: Dumb mower
« Reply #85 on: June 05, 2022, 06:29:12 PM »
F pictures, we need a video

etk300ex

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Re: Dumb mower
« Reply #86 on: June 05, 2022, 09:05:14 PM »
You’re a machine!

mr.mindless

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Re: Dumb mower
« Reply #87 on: June 12, 2022, 08:12:52 PM »
Got the other walk behind running today. Needs a main seal, ordered parts. Needs one tire fixed too. Not sure what it’ll sell for. Probably make it the towable and sell the Woods after deck repair


Mowed on Friday and did it all in 2.5hr in low, instead of 2.75-3hr in high without the “wing”.
Not the speed up I was hoping for but I bet it’ll make the Jake transmission not break again.
About 2 gallons of gasoline on top of the Jake’s diesel. It’s probably burning just as much as without towing.

Idk.
Probably test a zero turn sometime and just keep eyes out for a great deal on one.
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mr.mindless

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Re: Dumb mower
« Reply #88 on: August 28, 2022, 02:01:38 PM »
blade RPM dropped to about useless today. need to diag hydraulics. I have a service manual but not the necessary gauges.

Anyone have hydraulic test stuff, or tees and plugs?

There's a likely good test stand on ebay for relatively reasonable money https://www.ebay.com/itm/265849695469

but I'm still short lines and adaptors to 37? JIC, according to the service manual:
a. #6 9/16 18
b. #8 3/4 16
c. #10 7/8 14
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mr.mindless

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Re: Dumb mower
« Reply #89 on: August 28, 2022, 05:55:13 PM »
Finished mowing with the Mowzer. Blade and deck both on from pushing some stuff around whenever I last did that. Oooooof does it need power steering to ever do that again. My hands feel like I just stripped half a roof of shingles.
Quote from: etk300ex
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