How can I fix the timer on my GE gas dryer?

GE gas dryer, model # DDG5180RCLWH.
The timer does not work. The dryer turns on and will run for hours. I just purchased a new timer and I'm looking for directions to install it.
Geno, August 2004


done
ALL WORK ON GAS APPLIANCES SHOULD ONLY BE CARRIED OUT BY CORGI ENGINEERS

STEVE CORGI ENGINEER, September 2004