SERVICE

Servicing should only be performed by qualified & licensed service companies.

GAS VALVE

REGULATOR ADJUSTMENT

Recommended gas pressure at manifold

(4.0" W.C. Natural gas 10.0" W.C. Propane gas)

Adjustment of the gas valve pressure regulator is not normally necessary since it has been preset at the factory. During installation, the gas pressure should be checked at each gas valve with all burners operating. Adjustment may be accomplished as follows:

This adjustment must be performed by a qualified technician.

1.Locate the gas valves.

2.With the griddle turned off, connect the monometer to the pressure tap on the gas valve to be tested.

3.Turn the unit on and take the reading after all the burners have ignited.

4.Make the necessary adjustments by removing the screw cap on the pressure regulator cover exposing the adjustment screw (clockwise will increase the pressure, counterclockwise will decrease the pressure).

Always check the screw cap on the pressure tap for leaks after it has been removed and replaced.

GAS VALVE

REMOVAL AND REPLACEMENT

Disconnect the griddle from the gas supply.

1.Lower the control panel. Remove the control panel surround and upper heat shield.

2.Remove the three wires connected to the gas valve.

3.Disconnect the pilot and burner feed from the front of the gas valve.

4.Access the pipe union at the rear of the gas valve either from the front of the griddle or remove the back of the cabinet and loosen the union.

5.Remove two nuts on the rear of the gas manifold and pull the gas manifold forward.

6.Remove the gas valve and transfer the pipe and fittings to the new gas valve. Transfer the pressure tap to the new gas valve.

7.Replace the gas valve by reversing the above steps.

Always check for leaks at all joints and connections using a soap solution mixed with water.

DO NOT USE AN OPEN FLAME TO CHECK FOR GAS LEAKS.

Double check the wire connections to the gas valve; improper connection could damage the gas valve.

ON/OFF SWITCH

REMOVAL AND REPLACEMENT

1.Lower the control panel by removing the screws.

2.Disconnect the wires on the switch and remove switch.

3.Snap the new switch into place and reconnect all wires.

4.Return the control panel to its normal position.

THERMOSTAT

REMOVAL AND REPLACEMENT

1.Lower the control panel by removing the mounting screws.

2.Locate the bulb end of the thermostat and, using a wrench, loosen the front and rear bolts holding the thermostat bulb and shield in place.

3.Slide the thermostat bulb assembly towards you and remove it from under the griddle plate.

4.Remove the knob and the screws from the thermostat dial plate on the control panel.

5.Remove the body of the thermostat.

6.Install the new thermostat in the control panel, replace the dial plate.

7.Slide the thermostat bulb assembly into the channel until it reaches the stop.

8.Make sure that the thermostat capillary and bulb are completely protected by the shield, except for 1” at the tip of the thermostat bulb. (See Note 1).

9.Make sure that the thermostat shield extends to the front edge of the plate, and that the capillary goes through the formed end of the shield. (See Note 2).

10.Make sure that the bolts which hold the thermostat bulb and shield in place do not touch the thermostat bulb. (See Note 3).

Tighten bolts 1/4 turn past finger tight bulb to be snug against the bottom of the plate.

DO NOT OVERTIGHTEN THE BOLTS ON THE THERMOSTAT SHIELD OR THEY WILL CRUSH THE THERMOSTAT BULB.

11.Close the control panel and replace the panel mounting screws.

NOTE: IF REPLACING PUSH-ON TERMINAL STYLE. Before installing thermostat into control panel, you must unscrew the two brass terminal screws and install the new ring terminal wire connectors. Prior to connecting these wires, the existing push-on terminal must be cut off and ring terminals installed on them. Make sure that the terminals are secured down.

12.Calibrate the thermostat using an accurate

griddle thermometer. Locate the thermometer over the thermostat bulb (shown by the "Λ" on the front of the griddle plate) about half way toward the back of the plate. Calibrate to the cooking temperature you will be setting on the thermostat.

See Page 11 for

Proper Placement of the Thermostat Bulb

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Keating Of Chicago 37399 user manual GAS Valve Regulator Adjustment, GAS Valve Removal and Replacement
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37399 specifications

Keating of Chicago 37399 is a renowned aircraft manufactured by Keating Aerospace, a company known for its innovation and commitment to quality in aviation technology. The 37399 model is especially notable for its remarkable balance of performance, efficiency, and versatility, making it a favored choice among both commercial and private aviation sectors.

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