Garland STW286 Installation & Servicing Instructions Manual - Maintenance & Cleaning
P151 Rev. 1 (03/05)
Page 10
MAINTENANCE & CLEANING
Regular servicing by a competent person is recommended
to ensure the continued safe and efficient performance
of the appliance.
WARNING: Turn off the gas supply to the appliance
at the service cock and the electrical mains before
commencing any servicing work.
IMPORTANT: Test for gas leakage on completion of
any servicing work.
Gas Valve
Re-greasing of the gas taps is not recommended. If the
tap spindle becomes seized or difficult to turn, refer to
Replacement of Parts section in this manual.
Cleaning Burners
Griddle / Solid Hot Plate
1. Lift off the griddle plate or solid hot top. Use caution:
This will require assistance due to the weight of the
griddle / solid hot top.
2. Lift the rear of the burner and slide backwards off
the injector fitting.
3. Clean the burners in hot soapy water with a stiff
scrubbing brush.
4. Rinse and shake well to remove any debris.
5. Reassemble in the reverse order.
Convection Oven
1. Open the lower kick panel.
2. Remove the left & right hand oven door springs.
USE CAUTION: the oven door will need additional
support to remain closed.
3. Remove the left and right hand radiation shields.
4. Remove the two (2) screws that secure the pilot
bracket and disconnect the pilot tubing at the union
connection.
5. Remove the injector support and slide the burner
and burner pan forwards out of the combustion
chamber.
6. Clean the burner with a stiff scrubbing brush and
shake the burner well to ensure that ports are clear
of any debris.
7. Reassemble in the reverse order.
Pilot Burner Cleaning
1. Remove the main burners (refer to the section on
main burner cleaning).
2. Disconnect the pilot gas supply pipe from the pilot
jet.
3. Remove the pilot jet.
4. Clean by blowing through or washing. Do not use
wire to clear the pilot jet.
5. Reassemble in the reverse order.
Thermostat Calibration
Oven
It is normal for a hydraulic thermostat cycling with a
temperature differential of 45° to 50°F. If the thermostat
is cycling beyond the 15° tolerance above or below the set
point and the appliance is under warranty, recalibrate the
thermostat or if not under warranty, consult owner for
proper action. If the thermostat is out of calibration more
than 50°, it will not likely hold an attempt of recalibration.
We suggest that the thermostat be replaced.
1. Place the thermocouple of the test instrument in
the center of the oven.
2. Turn the oven temperature control dial to 400°F. In
order to allow the oven temperature to stabilize, the
oven control must be allowed to cycle twice before
taking a test reading.