question on a zetor 3320

hi all, got a few questions i hope you can answer. My friend has this tractor. I got to use it some, and found a few things i am unsure about, and he didn't know either. I think it is a 3320, i know the 33 is right, it is a two wheel drive, open station, plain shifter. First there is a lever on floor below the seat that has something to do with the pto, can any one explain this lever? I know the hydraulics only work when the pto is engaged, so that means one position of the lever is for pump only when the pto is engaged. I believe this lever had three positions, so any idea what the other position is?? I thought maybe a second pto speed??? I also noticed that if i pushed the lever foward toward the engine i couldn't move it back with out cutting off the engine because it ground. And secondly, next to the 3 pt lift lever aro two other levers, Can anyone explain what these are and do?? This seems like a nice tractor, and will proably find a few more questions.

Thanks guys!! snapper

Doesn't your friend know the answers ??
It's easier to tell when the tractor is near, so one can point at the levers we are talking about....

see, my friend doesn't know the answers. It is a wowman and it is her brothers tractor. So she has no idea about it. All she knows is how to do is put it in gear and go.. So, any ideas??

Thanks snapper

...what about the brother ??

3p hitch
PTO levers
oil flow control valve
please read these three posts thoroughly- and you will find most of the answers.
If any questions are left, i will be glad to help you

hey snapper,

I see you found your way here. One thing I would suggest is to have your friend invest in an owner's manual.

Maybe i should put an owners manual online... Many questions like these....

I'm sorry to say so, but i am not with you, about which levers are you talking ??
what do you mean by floor board, do you mean the two levers on the driveline tunnel, the twist lever just in front of the rear axle, the small pedal with a round cap on the floorboard, right in front of the rear axle or the hitch and hydro levers on top of the rear axle ? Maybe the oil flow adjuster on the horizontal pane against the rear axle ??

Hey Woodbeef, i read your post on TractorByNet, what makes me a wild man ?? wouldn't say that too loud, Buffalo Bill !!

well i now see what the lift levers do, but i still don't qite know what the lever on the floor does. The one that does something to the pto. the one ia m talking about it is right next to the high low lever. These two look identical. It does something with the pto cause when i pushed it one way the pto wouldn't work. any ideas??

Thanks!! snapper

NOW i know what we're talking about...

That lever has four positions :
first, most downward (towards the engine) : oil pump is driven
second (one up) : oil pump and PTO are driven
third (two up): oil pump is not driven, PTO can select 5 speeds, (300 to 1300 rpm) via the main gear selector, the same as you use for driving. do not forget to put the high/low lever in neutral for stationary PTO work.
upper position: nothing is driven, no PTO or oilpump.

I am not sure about the last two postitions, but i dont think you will ever need those, or else you can read the icons with this information.



Oh yes, you said the PTO didn't work when you change that lever ?? I hope you dont use just the clutch to disengage teh pto, you should use the PTO clutch for no more than 5 minutes. (plates get hot, i had them smoking once when i forgot) If you want to disengage it for longer, push the lever one position forward (no PTO, just oil pump) and release the clutch again.

okay that splains alot. So when get done mowing, relase the clutch, push lever forward, then re-engage clutch. Right? Now last time i tried to go back up from the forward most positiojn it wouldn't go with out grinding, i had to shut it down and then move it up then restart. What is the procedure for re engaging the pto ?? i will have to inform them of this because they never move the lever, they just disengage the pto clutch, which i now learn is bad. what kind of damage will just dis engaging the pto via the lever do to it???

Thanks again. snapper

Whoops: I think the evil already has taken place....
some gentle grinding is normal, you hear the gearwheels slow down quickly. But according to what you say, having to shut down the engine before you can put it in PTO gear, the clutch is worn, or needs major adjustment. (or you forgot to disengage the clutch befoire shifitng into gear...)That's exactly what you get from it... Excessive wear..I think some day your PTO just doesn't stop anymore when you pull the lever.

Does the PTO shaft stop when you have nothing attached to the shaft ?? In neutral, it should turn slowly, but stop when you grab it with your hand (without getting rough on your hands) This is because it rolls inside another shaft of the main gears, the rotation in neutral is just because of the oil sticking the shafts together. If it doesn't stop when you have it in gear, with the PTO clutch pulled, the plates are worn or need adjustment.
I forgot the PTO clutch once, while driving manure. halfway the land, the tractor (5245) started pulling heavy, and smoke came from the bellhousing.

There are tractors, like the Fendt 600 series, that have a mechanical engaged PTO with a clutch lever that can be pulled all day without trouble, but that's a totally different construction, an "ortlinghaus" engagement roller instead of pushing a bearing into a set of springs.

Sorry, but i cant see why people dont buy an owners manual with the tractor, if they are new to tractors... I dont blame you, you just learned these bad habits from the owners..

(anyway also just passenger car drivers have some really bad operating habits they arent aware of...)

well see, that is why i started digging for the proper way to operate it. I strive to operate machinery properly, can't stand not to. I can't stand when some one tells me thats just what it does when asking a question. Now, on the gear, i didn't try very hard to put it into gear because i was unsure of the proper opertion, so i didn't try very hard, so it might of been normal. I know the shaft does spend some when diengaged, but know idea how much force to stop it. next time i get to drive it i will be armed with the proper procedures and can see if all is well, or how much damag has been done. Thanks a whole lot!! snapper
should of mentioned, it turns in neutral with the mower still attached..

Is this because of the flywheel mass of the mower, or does the mower start turning after a short wile when you just started the engine ??

The idling of disengaged PTO: You should be able to stop it with a three fingers grip, at low engine revs (under1000 rpm)

Ijust noticed that the pto shaft always spun. I don't think it had much tirque. I have never been crazy about grabbing spinning shafts, but it really don't matter because they aint gonna listen to me and i am just digging answers for myself so whwn i operate it i am confident and know how everythings spose to operate and so i aint gota guess what does what..

Thanks again.. snapper

Just hyping your site, Dr Zetor!!

Now could you please send me real $$$ instead of faxing them from now on?

heh hehh

I have a 3320 also and the small lever is engaged and dis-engaged using the lever on the left side of the seat. You raise it up towards the steering wheel to disengage the PTO, this is the clutch for this area. The other lever is a emergency brake. Never run the tractor longer than 5 minutes with the PTO clutch engaged. You can engage the pto by itself or you can put it into a different position for the pto and front loader to still work.