Pallet Change Speed

[68 SS]

Is there a parameter that can be edited for the sec/rev. time on a horizontal cnc w/ pallet change.
I have a '94 model Saeilo Mach 3 Horizontal CNC with a Fanuc OM control and a turntable style pallet change. I am about 50 lbs. shy of the maximum weight limit for the tables. My problem is when I program a pallet change that there is so much momentum with the rotation that the whole turntable slams into the rubber bumpers. The book says it should be currently 10 sec/rev. I am setting the machine up for production and I don't think it would be a good thing to keep running the machine as is. I guess worst case, I set up a new fixture but with less parts to hold. I am currently holding 4 parts. 2 per tombstone. I've looked thru the books and did not find any such parameter to change this. Anybody out there have any ideas?

[dcoupar]

Are you sure the rotation is not hydraulic or pneumatic? If so, there should be flow-control valves and cushions to control this.

[68 SS]

I believe it's hydraulic. The hunt begins!!!
Thank you.

[RRL]

I agree with dcouper. as far as the "hunt", the cylinder cushions should be on the end caps of the cylinder. Usually a set screw with a jam nut. Its does not take much adjustment on these so make small adjustments to them.

RRL

[vipansam]

you can adjust the cushioning of hyd. cylinders