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Your Zetor have two PTO modes as Renze wrote just bevore.
OK, have you also preselected a PTO speed (lever in the middle directly in front of the driver's seat) - i.e. the preselector lever at 540 rpm or 1000 rpm and not at the neutral position in the middle?
If so, and you have correctly switched the other selector lever to engine-linked and the PTO manual clutch is engaged, the PTO should rotate.
If not, then it may be a problem with the PTO switch or a problem with your PTO clutch.
Photos of how the levers currently stand would be helpful...
Hi 505Fire,
I also the Zetor 3340 (1999) which has the Shuttle-Shift transmission (10 speed forward and 10 reverse)
This Shuttle-Shift lever in the middle directly in front of the driver's seat on my Zetor 3340.
So I believe I only have the 540 rpm PTO with my Zetor 3340.
The yellow levers control the PTO features, (see my pictures) are they like yours ?
Can you post a picture of the levers in your Zetor 3340 tractor ?
Currently my PTO is functioning I’m not sure what changed to make it work. But the PTO clutch does not seem to be working as the PTO wont stop even when drag is placed on it when the PTO clutch is pulled.
How do you select the PTO speed and how do you switch on the PTO if the PTO clutch cannot be disengaged?
Please check the play between the release bearing (large) and the release levers of the PTO on the automatic transmission - this should be 2-4 mm.
Please check whether all 3 release levers of the PTO are present and set the same.
If not, please repair/adjust both.
If everything is OK, but the PTO still does not disengage, it may be that the clutch lining of the PTO clutch is sticking to the pressure plate of the automatic transmission due to very infrequent use and high humidity. Then you can only try to solve the problem by using gentle force (operate heavy PTO equipment with the PTO clutch disengaged and hope that it comes loose) or by disengaging the tractor and repairing the automatic transmission.
It is also rare that the driver of the PTO clutch disc is rusted onto the hollow shaft of the PTO clutch. This also only occurs when the humidity is high and the PTO clutch has not been used for a very long time.