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mikeih354

1872 won't idle

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Picked up a 1872 yesterday power steering, front remotes, hydraulic deck, rear PTO,  50 inch deck Kohler 18 v- twin.problem is won't idle unless choke is on a little. Flushed out tank, new lines,new filter fresh gas.

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Carb rebuilt?

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No, PTO brake needs adjustment 

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Both use electric clutches with brakes. You need to use a feeler gauge in the air gap in 3 spaces and then tighten brake ring to adjust. 

I'll check the manual tonight. 

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Hope rear is easier to adjust than fronts are!  Talk about having to stand on your head!

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Idle circuit in carb is plugged.  Pull carb, clean and rebuild. 

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Rear PTO adjustment 

20200325_204920.jpg

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Step #2 is what you are after.  .010 to .015" clearance between the clutch plates as adjusted with the lock nuts on the big stamped flange that covers the PTO and acts as a brake.

Usually too much gap cause them NOT to turn.  no gap would cause them to always turn, but also would drag the brake flange...A Lot.  Bearing may also be out / locked up.

Your PTO problem could also (actually very likely) be electrical.  Someone could have butchered the wiring or the PTO switch could have gone bad and it is always "on".  easiest test is to pull the wire to the clutch and see if it stops turning (it should).  If it doesn't, it's mechanical (bad adjustment, bad PTO bearing).  If it does, you need to track down the magic electron path that's keeping it "hot"

BTW........I hear those rear PTO clutches are high $$$$ and not easily available.  If it has mechanical issues you may want to proceed with caution.  FYI

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6 hours ago, Mr. Plow said:

Step #2 is what you are after.  .010 to .015" clearance between the clutch plates as adjusted with the lock nuts on the big stamped flange that covers the PTO and acts as a brake.

Usually too much gap cause them NOT to turn.  no gap would cause them to always turn, but also would drag the brake flange...A Lot.  Bearing may also be out / locked up.

Your PTO problem could also (actually very likely) be electrical.  Someone could have butchered the wiring or the PTO switch could have gone bad and it is always "on".  easiest test is to pull the wire to the clutch and see if it stops turning (it should).  If it doesn't, it's mechanical (bad adjustment, bad PTO bearing).  If it does, you need to track down the magic electron path that's keeping it "hot"

BTW........I hear those rear PTO clutches are high $$$$ and not easily available.  If it has mechanical issues you may want to proceed with caution.  FYI

I actually never seen one yet with a rear PTO!  Are you lucky enough to have any attachments yet Mike?

Too bad they are so rare and attachments are so expensive, be nice to have PTO driven mower option or other stuff, heck we can all dream!

 

7 hours ago, mikeih354 said:

Thanks for your help I'll check tomorrow got nothing but time. . Jobs are shut down for now, not working.

 

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No, that is the drive shaft for the PTO option ......that unfortunately you dont have.

It is the same shaft as the hydro input shaft, just the back side of it....and as such, it spins with the driveshaft whenever the tractor is running. 

To have a rear PTO you must have a SGT 3 pt. Hitch. 

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