Knob Adjustment 3030, 3040 & 3200 Series regulators

Knob Adjustment 3030, 3040, 3200, 3450, 3494 & 6342 Series Pressure Regulators
-Need a 1/2" socket wrench and flat head screw driver
Note: The thread on the stem is 3/8"-24
Replacement knob can be found at: store.mathesongas.com/replace...