mating surface of the
valve nut is dirty, worn
or damaged.
e. Remove the valve nut. Inspect and clean or replace
as needed.
5-2. UNEVEN OXYGEN FLOW.
Table 5-2. Troubleshooting Uneven Oxygen Flow
TYPE OF
PROBLEM /
MALFUNCTION
PROBABLE
CAUSE
RECOMMENDED REPAIR PROCEDURES
1. UNEVEN
OXYGEN
FLOW
a. The flash arrestor is
dirty or worn.
b. The flash arrestor
screen is dirty or worn.
c. The torch is dirty.
a. Follow the flash arrestor inspection / replacement
procedures to remove the flash arrestor. Clean or
replace as needed.
b. Remove the flash arrestor screen as described in
the repair procedure. Clean or replace with a new
screen as needed.
c. Remove the flash arrestor and flash arrestor screen
as described in the inspection / replacement
procedure. With the torch connected to an oxygen
source, depress and release the oxygen control
valve lever three or four times to clear the oxygen
path. Reinstall the flash arrestor and flash arrestor
screen.
