How to adjust the scald prevention mechanism of a bath faucet.?

I recently installed a Pegasus 9000 Bath Faucet and the water at best will only get luke warm. Unfortuneately the instructions for the product were missing as well. Water in my bathroom sink is plenty hot and the water out of the old faucet was also very hot. I've narrowed the problem to the scald prevention mechanism but don't know how to adjust it. One post mentioned taking off the handle and adjusting something on the neck, but I wasn't sure what they were talking about. The faucet also has two bolts with screws on the hot and cold side but adjusting them didn't seem to make a difference. Any help would surely be appreciated...