GE JGP321 Owner's Manual And Installation Instructions page 17

Install " instruct"
Installing the Cooktop Unit
_ Insert Cooktop into Cutout
Insert the cooktop centered into the cutout
opening. Make sure the front edge of the
countertop is parallel to the cooktop. The unit
must rest on the metal flange around the
burner box. Make final check that all required
clearances are met.
I-B--_Secure Cooktop to Cabinet
Attach the cooktop to the counter by inserting
a screw in each corner that is suitable for
your countertop.
Screw Holes
17