Vulcan-Hart GRS25 Service Manual page 18

REMOVAL OF POTENTIOMETER
1. Follow steps 1-2 under Control Panel (Solid State Construction)
2. With a small flat blade screwdriver loosen the set screw in the potentiometer knob. (Fig. 13)
3. Pull the knob off of the panel.
4. With a 1/2" wrench remove the potentiometer holding nut from the front of the control panel. (Fig. 14)
5. Remove the pot wires from the wire harness assembly.
6. Install new pot by reversing steps 1-5.
Set Screw
Fig. 13
Fig. 14
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