IslandTractor
Super Star Member
- Joined
- Sep 15, 2005
- Messages
- 15,802
- Location
- Prudence Island, RI
- Tractor
- 2007 Kioti DK40se HST, Woods BH
As said don't worry about air getting into the system.. That will be eliminated in short order by operation of the grapple. Grease is another matter. Mine was not greased. It took a lot a grease. After a while you can check the fluid level on the tractor, but It won't be down too much.
Funny as my grapple has never seen grease in the 12 years I've owned and abused it. No zerks. The only greasable joints would be the two pins holding the hydraulic cylinder and the two pins holding the jaw to the frame. On mine the jaw to frame "pins" are just 3/4" bolts. Nothing to grease. After all these years the threads at contact points are worn off but the meat of the bolt/pin is solid. I joke that I'll change them at 50 years whether needed or not.
If you think about it, there is no chance for friction to cause heat build up in a grapple as everything happens so slowly and intermittently. In a busy day I may open and close the grapple jaws 200 times over 5-6 hours and that just isn't enough movement to cause any heat build up or damage. Unlike in a backhoe, there is rarely a lot of force on the grapple jaw pins either. It doesn't take much force to crush brush and almost no force to restrain logs etc. Occasionally I clamp on to a big rock with max pressure with the jaw but that is just once and I guess it just doesn't generate the sort of friction that you see in an actively digging BH.