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Maintenance
Flushing
D Flush before changing colors, before fluid can dry in
the equipment, at the end of the day, before storing,
and before repairing equipment.
D Flush at the lowest pressure possible. Check
connectors for leaks and tighten as necessary.
D Flush with a fluid that is compatible with the fluid
being dispensed and the equipment wetted parts.
1. Record the pressure adjustment setting of the
regulator before flushing.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 5.
2. Shut off the pump and relieve fluid pressure in the
system by triggering the gun and opening the back
pressure valve or other bypass valve.
3. Never exceed the maximum working pressure of
the lowest rated system component.
4. Open the fluid regulator by turning the adjusting
screw (18) fully clockwise.
5. Supply solvent to the system. Set pump to the
lowest possible pressure, and start pump.
6. Flush until thoroughly clean.
7. Adjust the fluid regulator to return to the desired
fluid pressure setting.
Cleaning
NOTE: Do not allow fluid to settle in the system.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 5.
1. Relieve the pressure.
2. Remove the regulator. Clean and inspect all parts.
CAUTION
Handle the hard carbide parts, ball (5), valve actuator
(9), and seat (6) carefully to avoid damaging them.
Damage will cause poor operation and leakage.
Cartridge Replacement
NOTE: Kit 222140 replaces the fluid regulator valve
cartridge. See page 10 for the parts included.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 5.
1. Relieve the pressure.
2. Remove the cartridge by loosening the valve
housing (1) and pulling the cartridge assembly out
of the regulator housing (24). See Fig. 1.
3. Install the new cartridge assembly into the
regulator housing (24). Torque the valve housing
(1) to 30 to 35 ft-lbs (41 to 47 NSm).
Fig. 1
1*
Torque to
30 to 35 ft-lb
(41 to 47 N-m)
24