Remove the gas inlet fittings

A	Kit: 428685 Air intake fittings
1	Quick-disconnect nipple 1/4 NPT
2	G-1/4 BSPP adapter with 1/4 NPT threads
B	Kit: 428732 Bulkhead fittings
3	Hex nut
4	1/4 NPT x 8 mm brass bulkhead fitting

For these steps, refer to Rear panel with gas inlet fittings.

1. Complete the following procedures:
   1. Set the power switch to OFF (O), disconnect the power cord from the power source, and disconnect the gas supply.
   2. Remove the plasma power supply cover and handle.
2. Remove the gas inlet fitting from the back of the plasma power supply.
3. From the outside of the rear panel, remove the nut from the brass bulkhead fitting.
4. Push-to-disconnect the brass bulkhead fitting from the side of the air filter.
5. Discard the fittings that need to be replaced.