Wells WRG-Series Owner's Manual page 7

Plug the appliance into an appropriate receptacle. Press the POWER
SWITCH to "ON". The lighted switch will glow.
Temperature control is by INFINITE SWITCH. The knob position is an
indication of the temperature, where higher numbers indicate higher
temperature.
Turn the TEMPERATURE CONTROL KNOB for front and/or rear
section to "HI" (continuously "ON") Allow the appliance to pre-heat for
10 minutes. At the end of the pre-heat period, set the knob to the
desired temperature setting.
For -SR units apply a thin coating of vegetable oil to the rollers. This
will help reduce product sticking to the rollers. (For -CR units this step
is not necessary).
Be sure the removable drip tray is clean and in place. Load the product
onto the rollers and allow to heat.
Product may be left on the rollers for several hours without further
attention. For product quality and consistency, determine the maximum
cooking time for your operation and discard product when it has cooked
for longer than this pre-determined time.
At closing, perform CLEANING as outlined on page 6.
5
OPERATION
CAUTION:
HOT SURFACE
Exposed surfaces
can be hot to the touch and
may cause burns.
Temperature Control Knob