540...Let er' rip?

[hlpdobro]

I've just mated a Woods 72" BrushBull to a new Montana 3840 and noticed that the mower's manual recommends engaging the PTO at less than 540 and slowly bring RPM's up appropriately.

The tractor's "korenglish" instructions basically say 540 RPM and engage warp drive...

Anyone care to make a recommendation based on practical experience..Before I throw the switch?

Thanks in advance.

 

[Bird]

I always engaged the PTO at low rpm, then brought it up to the 540 speed. Otherwise you put quite a shock load on the whole driveline if the tractor is running at the 540 speed. That will slip the slip clutch, or break a shear bolt, depending on which your mower has. In other words, follow the manual for the BrushBull.

 

[randy41]

this depends on what the attachment is (for me). for my bush hog i always start low and build it up. for my tiller, i set 'er down in the dirt and let 'er rip.

 

[LarryD]

I always engage my PTO at low (idle) rpm's and then bring the implement up to speed without any load.

Then I put it to work..

 

[jbrumberg]

I agree with the previous posts and engage the clutch slowly. Jay

 

[RoyJackson]

I engage the PTO at 1200 RPM (blipping the foot throttle if the tractor starts to stall). I keep the RPM low until the cutter blades extend (5-8 seconds) then smoothly increase RPM to PTO speed (on a 790, this is about 2600 RPM).

 

[thcri]

All implements I start out slow and birng it up to operating speed.


murph

 

[Z-Michigan]

Like most others, I engage PTO at idle or very close to idle, then bring it up to speed gradually. I was told and shown how to do this by the dealer, and I think it's also in the manual for my LX6 cutter. Engaging at high rpm is hard on everything and can pop shearbolts if you have them. Also, I recommend bring the engine down to idle before disengaging the PTO, to minimize cutter speed and the coast time before it stops.

 

[darkviper]

ALWAYS ALWAYS start the pto as close to idle as the machine will let you. THe smaller tactors like we are use to in here is not as critical but you can still shear things. In worse case i have seen the PTO shaft of the tractor itself or UV joints in the implement. However once you start into the 40 and 50 HP range it is real critical. When i was working on the farm one of the workers engaged a 95 HP tractor with a 10' Mower behind it with the engine at 1800. He droped the clutch to fast and it sheared the PTO In the tractor which sent metal fragments all though the rear half of the machine. Before he could shut it down it did over $5000 worth of damage. On the CK20 you can realease the clutch slow enough that you can do a 52" rotory mower with no problem. Agian i can not stress how important it is to start as low on the engine RPM as you can. Any seasoned farmer will tell you this as they have damaged stuff before for starting it to fast. When you finally find out you gave her to much it is to late and can really hurt the pocket book if you know what i mean

 

[Ford960]

Would you take your truck and run the throttle up to 2500 rpm and slide your foot off the side of the clutch peddle with the transmission in second gear?