Lang RTC36A-480VM Installation, Operation And Maintenance Instructions - page 13
13
MAINTENANCE & CLEANING Cont’d
CALIBRATION
Calibration Check
Place thermometer or thermocouple in the center of grill section.
Set thermostat to 350
°F.
Allow the grill to preheat for at least half an hour.
Note cycle on temperatures and cycle off temperatures for 3 cycles.
After 3 cycles average the temperature, (Add all six temperatures and divide by 6).
The temperature should be +/- 15
°F.
Calibration Adjustment
A 1/16” flat blade screwdriver with a 2” shaft is required to make adjustments on the thermostat.
Maintain the oven temperature at 350
°F.
Without turning the thermostat, remove the knob.
Locate the adjustment screw at the base of the shaft and insert the screwdriver.
Grasp the shaft and turn the screw. Counter clockwise to increase and clockwise to decrease
(1/8 of a turn will move the temperature 5-7
°F in either direction).
Reinstall the oven knob and recheck the oven temperature.
WARNING
MAKE SURE THE RANGE HAS BEEN PROPERLY SECURED FROM POWER
BEFORE REMOVING ANY COMPONENTS.
RANGE TOP
Thermostat
Secure range top from power. Open front control panel and feed capillary tube up towards grill plate. Using
two 9” braces, lift the griddle plate up and secure with the two 9” braces. Remove capillary tube holders from
the center of the element pan assembly and gently remove from griddle area. Remove two sheet metal
screws holding control panel to range top and remove control panel. Remove the thermostat knob and two
screws holding the thermostat to the control panel. Discard old thermostat. Reverse removal instructions to
install new thermostat.
Elements
Secure range top from power. Using two 9” braces, lift the griddle plate up and secure with the two 9” braces.
Remove capillary tube holders from the center of the element pan assembly and gently remove from griddle
area. Remove wires from element terminals, noting the wire locations. Remove the five nuts holding the
element pan assembly to the bottom of the griddle. Remove defective element from the element pan and
discard defective element. To install reverse removal instructions.
6-Heat Switch
Secure range top from power. Remove two sheet metal screws holding control panel to range top and
remove control panel. Remove the 6-heat switch knob and two screws holding the 6-heat switch to the
control panel. Remove wires from the 6-heat switch terminals noting the wire locations. Discard old 6-heat
switch. Reverse removal instructions.
French Plate
Secure range top from power. Using two 9” braces, lift the French plate frame assembly up and secure with
the two 9” braces. Remove wires from the element terminals, noting the wire locations. Remove defective
French plate assembly from the range. To install reverse removal instructions.