Turntable adjustment


I've recently acquired a Technics SL-QD33 turntable with a p-mount cartridge. Anti-skate is factory set and non adjustable. Also, its fully automatic. Everything worked fine with the stock cartridge, but I wanted to upgrade so I purchased the Grado Prestige Green cartridge, which has improved the sound.  However, now when I start to play an album, the tone arm no longer places the stylus in the groove, thus, it slides off the record. What can be done to address this issue? 
hawk28
hawk28, make sure the turntable is level. If it is shift the cartridge just a bit to the inside if you can.
The arm does not provide for any sort of balancing of weight. It does however, have an adjustment for VTF, which I checked.
hawk28
The arm does not provide for any sort of balancing of weight.
Are you sure?
It does however, have an adjustment for VTF, which I checked.
Did you check it with a separate VTF scale, or are you relying on the scale that's part of the arm?
VTF scales on many pickup arms are not even remotely reliable. I suggest you use a dedicated gauge to confirm your VTF. It needn’t be expensive - even the little Shure gauge is quite good.

What you describe could very well be a VTF issue.
Cleeds, thanks for the advice. Based on your questions, I went back and adjusted it from the fixed 1.25 to 1.5, and bingo, the stylus landed correctly and smoothly on the record.

But I will look into that VTF scale for the future. Thanks to all who helped me out.
If you go to the VINYL ENGINE you can look up the owners manual. The tracking force is set at 1.25 grams with a 6 gram cartridge. It can only be adjusted plus or minus by .25 gram!

https://www.vinylengine.com/

Am I reading this right? You put a $100 cartridge on a $70 turntable?

Anything around this level the turntable comes first. Live and learn.
Millercarbon, given the fact that the turntable didn't cost me a dime, the money I spent on the cartridge was well worth it.
The Technics SL-QD33 uses a P-MOUNT (T4P) cartridge.  So no adjustments at all, (other than the whopping .25 in VTF).  

I sold these back when they first came out.  Were meant to be a plug-n-play solution for the customer.  Too bad most of them sucked...
Millercarbon, given the fact that the turntable didn't cost me a dime, the money I spent on the cartridge was well worth it.


So a perverse example of the fallacy of the sunk cost. But an example nonetheless.
🤣🤣🤣🤣 Thank you for your genuine concern of my audio spending choices.