3cyl 4500 access plate to the PTO question

Hi all,

On my 4500 (late 60s) there is an access cover on the center housing, low and on the left side (as you sit in the seat). According the the CNH website it is part...

#C5NN4N023B PLATE Plate, Center Housing Side, w/Independent PTO, No Longer Serviced., Start Year: 01/01/1965

Q) can the lower hyd screen (filter) be accessed through this area?

My manuals and new holland website only show this from the right hand side.

I am having this screen clog up over and over and over. I have changed the fluid 3 times in the last 8 months. flushed the system twice. Back blown the intake twice as well. When I rebuilt the lift cover, I also cleaned as much as I could and drained and flushed it... Last night it plugged up so bad that it took 90 minutes to raise the gannon (blade). The pump pressure at a fast idle is 1800 psi (warm).

Q) can the brake discs be deteriorating? and be clogging this up? I have never had the diff apart and don't know what the wet brakes consist of.

Q) I don't use the PTO, at all. but understand that there are clutches in there, perhaps these are breaking up????

your thoughts are appreciated....sl

You may be able to stick your hand in there and touch the filter, but I doubt you will remove it. That will require removing the lift cover and PTO output shaft. Brake material could very well be plugging the filter/screen. If the PTO clutch is largely unused, material from those friction discs probably isn't a source. How much adjustment is left on your brakes? Some of these old dogs (including my 4000) are getting ready for their first brake disc replacement.

usually when the brake disc are disintigrating... this is common on some john deere tractors as well... time for a rear brake rebuild, pulling off the axle trumpets..

Rick, You asked about the adjustment on the brakes....
I was under the machine just the other day replacing the seals on the brake rods. There is still much left and the pedals are up.

I remember when I got this machine. The brakes growled and groaned, that was about 2 yrs ago.

Bill. Do the JD's have a similar system ( rear Hyds?)
I was looking at the newer JD's (skip loaders) at work... 4WD, and the gannon on the rear was HUGE! two hyd rams to lift and tilt the gannon.
A very powerful and strong looking machine.

...sl