1086 pto

[kRM1976]

Pro seems to hesitate when engaging, how's a guy adjust that? Thanks for any help

 

[caterpillar guy]

there is a plug on the left side about half way down. the bracket holding the linkage has a hole in it for the plug. You will need an adapter for the plug to screw into a hose then a gage to screw into or onto the hose. the hose is so you can see what you're doing while adjusting. Then to adjust you screw the top of the PTO stem in or out as needed. Without the pressure in front of me I am going to guess it is around 235-250 PSI for gage pressure. Get a better figure than that before adjusting. Ther is a hole for a nail to turn it after loosening the deal at the top of the stem or you can pull the linkage apart to adjust but needs to be put back together to know the correct pressure while running. Some have a jam nut at the top under the block some have a small bolt as a clamp. Depends somewhat on the models and years.

 

[DeltaRed]

Not to be a jerk,but is the hydralic oil level full? If the fluid gets low,it will cause slow engageine. Eventually it will quit as the PTO is the first to fail with low oil.Pull the 'stick' and find out.

 

[the tractor vet]

Depending on S/N break of said 1086 will depend on want ya need . On early1086's on pressure gauge that can read hyd. pressure up to 600 psi is needed along with special service tool adapter as that fitting has a restrictor orface . On a late S/N break one ya need two gauges and two fittings . When testing and setting pressures hyd. oil needs to be at operating temps of 150-180 degrees . Do not set pressures cold as you will get a false reading and once warmed up pressures will drop WAY off . Early S/N PTO's have spring brakes and late have Hyd. brake thus the need for two gauges on late ones . Operating lock up of clutch pressure i set them around 250- 270 and if that tractor has been TWEAKED then we go a weee bit higher . So first ya need to know is yours and early or late . Next ya need THE BOOK as i am not going to go thru the whole ordeal of the do's and don'ts . Then ya need the service tool . Use to be able to BUY them from I H , but now i don't think so . BUT i think ya can still get the little plugs and that is a start . Ya take two new plugs and braze on a small JIC fitting and make up one or two whip hoses add in two liquid filled gauges that will read up to 600 Psi then ya use a Number drill bit and drill a tiny hole in the plug , Now don't ask me what sizes as i will have to go out to the service truck and see what size , My first one was home made then i got two factory ones year back.
And to day i am not fully Adulated just yet , it's Sunday and i still have my slippers on .

 

[the tractor vet]

The test fitting has a .028 hole for and orifice as this helps reduce shock load on the gauge and gives a steadier reading on pressure. yea that is a tiny hole and extremely hard to drill .