Hydraulic oils

J_J · Nov 11, 2003

No, I have never seen this pic. Did your machine come with this set up, or did you do some custom work here? My 1445 seat is above the oil filler cap. Is that the filtered cap you installed? I think I will get one of those for mine. Is that a standard 1/4 turn cap?

J.J.

Sedgewood · Nov 12, 2003

No, I have never seen this pic. Did your machine come with this set up, or did you do some custom work here? My 1445 seat is above the oil filler cap. Is that the filtered cap you installed? I think I will get one of those for mine. Is that a standard 1/4 turn cap?


My seat is above the cap too. The original cover has been modified to accept the new cap. The old fitting was machined off and holes drilled and tapped to mount the new cap.

See a catalog picture of the new filler here.

Sedgewood

Charlie_Iliff · Nov 12, 2003

you were going to adjust your brakes some time back - how did that work out? Do they hold now?

I did a quick & dirty adjustment under some time pressure to get to a job. They hold much better, but need just a bit more. The manual tells how to adjust them, but doesn't say that you need to pump the pressure up pretty high for each individual wheel to make sure you get it adjusted with the clearance small enough. The tender bleeds down - which will be a problem for towing.

Bob999 · Nov 12, 2003

The manual tells how to adjust them, but doesn't say that you need to pump the pressure up pretty high for each individual wheel to make sure you get it adjusted with the clearance small enough 

Probably like a lot of things with PT documentation there are differences in what each of us received. My manual says to pump the pressure to 2000psi to adjust the brakes.

I installed a "service" switch that connects across the "out of seat sensor" on the tilt seat so that when I flip the switch to the closed position I can keep the tractor running when I am out of the seat.

While I haven't adjusted the brakes yet I think that if I start the tractor, activate the "service" switch I installed, and move the Brake tender to the operate position--then the pressure will be applied (and maintained) to the brakes so that they can be adjusted without manual pumping.

Again, I haven't actually done this process yet but I think it should work.

J_J · Nov 12, 2003

You guys nust have a different brake sysem than the one on the older 1445's. I think mine is only used as a parking brake. My brake sys has a rotor with holes around the outer edge, so a sliding metal cylinder slides in the hole to lock the brakes. I don't think it will operate if the wheels are moving.

I am thinking of some kind of disk brake, like on a go-cart.

J.J.

Charlie_Iliff · Nov 12, 2003

Bob: Having the engine running and the brake tender in "move" position certainly should hold the brakes open wide, so you can take the clearance down where it needs to be -- just don't bump the treadle. /forums/images/graemlins/tongue.gif

Charlie_Iliff · Nov 12, 2003

J.J. On the newer 1845s, there is a "Brake Tender", which appears to be a separate product that PT or an afiliated company markets to others. Disc brakes are spring loaded, but disengaged by hydraulic power when the control lever is moved. When the engine shuts down, the lever is centered, or hydraulic pressure is lost, the brakes engage. I really like the system, but it does require tight adjustment for it to hold on a steep hill.

Bob999 · Nov 12, 2003

just don't bump the treadle. 

To do the adjustment safely the tractor should be up on supports so that the wheels are not touching the ground.

I don't know about you but I find it very difficult to manually pump the brake tender up to 2000 PSI because of the location of the pump handle. I think that if I ever had to tow I would adjust (release) the brakes rather than pump up the brake tender.