L4060HSTC PTO Pressure

[GBJeffOH]

I want to test the pressure because sometimes the PTO takes about a minute to shut off.

I always start and stop the PTO at idle speed.

The test port threads are PT 1/8.

I am having trouble finding a test kit with that size fitting.

I have a gauge that is 0-600 PSI with 1/4 NPT.

 

[North Idaho Wolfman]

Just go to a hardware store and get a 1/4 to 1/8 reducer.

 

[GBJeffOH]

Just go to a hardware store and get a 1/4 to 1/8 reducer.

My 1/8 NPT will go in maybe 1/2 turn.

If I put the black plug and screw it into a female 1/8 NPT it is sloppy.

 

[GBJeffOH]

I want to test the pressure because sometimes the PTO takes about a minute to shut off.

I always start and stop the PTO at idle speed.

The test port threads are PT 1/8.

I am having trouble finding a test kit with that size fitting.

I have a gauge that is 0-600 PSI with 1/4 NPT.

PT is the abbreviation of pipe thread,which is a 55 degree sealed tapered pipe thread.It belongs to WHITW thread and is used in Europe and commonwealth countries.

 

[North Idaho Wolfman]

PT= British Thread

https://www.amazon.com/Earls-968698ERL-Female-Straight-Adapter/dp/B01EKUFYKG/ref=sr_1_18?hvadid=174301027831&hvdev=c&hvlocphy=9029659&hvnetw=g&hvqmt=e&hvrand=2030661734509015296&hvtargid=kwd-98579611459&hydadcr=7472_9322242&keywords=1%2F8+bspt+to+1%2F8+npt&qid=1690998060&sr=8-18

https://www.amazon.com/Dewhel-Female-Sensor-Adapter-Reducer/dp/B00V5Q6GME/ref=sr_1_3?hvadid=174301027831&hvdev=c&hvlocphy=9029659&hvnetw=g&hvqmt=e&hvrand=2030661734509015296&hvtargid=kwd-98579611459&hydadcr=7472_9322242&keywords=1%2F8+bspt+to+1%2F8+npt&qid=1690998060&sr=8-3

 

[TheOldHokie]

My 1/8 NPT will go in maybe 1/2 turn.

If I put the black plug and screw it into a female 1/8 NPT it is sloppy.

That is BSPT not NPT. Keep messing with the wrong thread type and you will have a mess on your hands.

9042-02-02 | 1/8" BSPT Male x 1/8" NPTF Female

Check out the deal on 9042-02-02 | 1/8" BSPT Male x 1/8" NPTF Female at DiscountHydraulicHose.com

www.discounthydraulichose.com

Dan

 

[GBJeffOH]

PT= British Thread

https://www.amazon.com/Earls-968698ERL-Female-Straight-Adapter/dp/B01EKUFYKG/ref=sr_1_18?hvadid=174301027831&hvdev=c&hvlocphy=9029659&hvnetw=g&hvqmt=e&hvrand=2030661734509015296&hvtargid=kwd-98579611459&hydadcr=7472_9322242&keywords=1%2F8+bspt+to+1%2F8+npt&qid=1690998060&sr=8-18

https://www.amazon.com/Dewhel-Female-Sensor-Adapter-Reducer/dp/B00V5Q6GME/ref=sr_1_3?hvadid=174301027831&hvdev=c&hvlocphy=9029659&hvnetw=g&hvqmt=e&hvrand=2030661734509015296&hvtargid=kwd-98579611459&hydadcr=7472_9322242&keywords=1%2F8+bspt+to+1%2F8+npt&qid=1690998060&sr=8-3

The local hydraulic shop had the 1/8 Bspt Male To 1/8 Npt Female fitting.

When I told the hydraulic shop 1/8 BP they had no idea. It would be nice if the WSM said BSPT not PT.

Thanks for the help.

 

[TheOldHokie]

The local hydraulic shop had the 1/8 Bspt Male To 1/8 Npt Female fitting.

When I told the hydraulic shop 1/8 BP they had no idea. It would be nice if the WSM said BSPT not PT.

Thanks for the help.

PT is a JIS designation that Kubota loves. BSPT is a British designation. Both are currently obsolete but still used by lots of manufacturrs. Here is a little cheat sheet I put together of the designations you might run into. Most hydraulic counter people will be baffled by anything other then BSPP/BSPT or G/R.

Dan

 

[GBJeffOH]

I want to test the pressure because sometimes the PTO takes about a minute to shut off.

I always start and stop the PTO at idle speed.

The test port threads are PT 1/8.

I am having trouble finding a test kit with that size fitting.

I have a gauge that is 0-600 PSI with 1/4 NPT.

I should have around 400 PSI. I have 250.


No 6 is where you adjust it.

My tractor does not have that.

I don't know where to adjust it.

 

[North Idaho Wolfman]

Your looking at the adjustment for a Manual or GST, with an HST it's the bottom picture.

 

[GBJeffOH]

Your looking at the adjustment for a Manual or GST, with an HST it's the bottom picture.
View attachment 108528

View attachment 108529

You are correct. Thank You.