Need to roll Frigidaire fridge out about 6 inches but can't get it to budge

Took out the piece of molding in front of the front wheels and also the 2 screws on each side that are in the metal brackets but even with 2 of us tugging on it the fridge will not roll forward. I need this done so the Frigidaire repairman can install a new valve for the icemaker which has hardly worked at all. He needs more room in the outside to do the job.