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Operation
WARNING
To reduce the risk of component rupture, which
can cause a fire or explosion and result in
serious bodily injury, including splashing in the
eyes, never exceed 250 psi (18 bar, 1.8 MPa)
Maximum Inbound Fluid Pressure to this regula-
tor.
CAUTION
Do not pressure test the regulator with air; use
solvent. Air may cause leaks between the fluid seals
and result in fluid leaks during normal operation.
If the rest of the system must be pressure tested
with air, loop past the regulator during the test.
1. Insert hex end of key (25) in adjusting screw (20)
and turn counterclockwise until spring tension is
relieved. See Figs 2 and 3.
2. Start pump and open shutoff valve of outlet (H) to
admit fluid to regulator. Turn key (25) clockwise
until desired fluid pressure shows on gauge.
CAUTION
Do not exceed the Regulated Pressure specification
of your regulator. Pressures higher than specified
can damage the gauge.
Note: When reducing pressure, relieve pressure in gun
and supply line to ensure a correct gauge reading.
CLEANING THE REGULATOR
Note: Flush the regulator every four weeks, or as
necessary for the amount and type of use.
1. Clear regulator of paint or other fluid by blowing
back fluid through the gun and hose.
2. Shut off supply pump and relieve line pressure by
opening back pressure regulator or other by-pass
valve.
3. Open regulator valve by screwing the threaded
portion of key (25) as far as possible into the cap.
See Fig. 2.
4. Loosen air cap ring of spray gun three turns, hold
a rag firmly over the end of the cap and trigger the
gun. Air will force fluid back through the gun, hose
and regulator.
5. After blow-back, remove the adjusting key (25)
Note: Do not use the threaded end of key (25) to
adjust pressure.
6. Flush regulator until clean.
25
Fig. 2
Blow Back Position Regulating Position
03369