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Flushing
I. When to flush.
D Before the first time use
D When changing colors
D Before fluid can dry or settle out in a dormant
system (observe the recommended fluid pot life on
catalyzed fluids)
D Before storing the system
II. How to flush.
See Fig. 9.
1. Relieve pressure.
2. Remove the air cap before flushing. Clean it
separately.
3. Remove the pressure pot cover. Remove the tank
liner, if used. Pour in 1 gal. (4 liter) or place a
1 gal. (4 liter) metal pail of compatible solvent in
the pressure pot. Install the cover and tighten the
c-clamp handles (27) securely.
4. Make sure the pressure pot and gun air regulators
(33, 36) and the master air valve (A) is closed.
5. Be sure the air relief valve (7) is closed (clockwise).
6. Open the master air valve (A).
7. Open the pressure pot air shutoff valve (17b).
8. Set the pressure pot air regulator to 20 psi
(138 kPa, 1.4 bar).
9. Open the gun fluid shutoff valve (18).
10. Hold the gun against and aimed into a grounded
metal waste pail. Trigger the gun slowly. When
fluid flows freely, release the gun trigger.
11. For a first–time flush: trigger the gun and flush with
solvent for 30 seconds.
For flushing after spraying fluid: trigger the gun
and flush with solvent until the system is thor-
oughly cleaned. Repeat with clean solvent if
necessary.
12. Release the gun trigger, close the pressure pot air
shutoff valve (17b).
13. Relieve pressure.
14. Open the tank and clean the inside of the tank and
its suction tube.
15. You are now ready to prime the system with
another fluid or to store the system. Relieve pres-
sure if you are storing the system.
Fig. 9
KEY
A Bleed-Type master air valve
4 Pressure relief valve
7 Air relief valve
17aGun air shutoff valve
17bPressure pot air shutoff valve
18 Gun fluid shutoff valve
27 C-clamps
33 Pressure pot air regulator
36 Gun air regulator
A
17a
17b
18
36
4
7
33
Model 237413 shown
27
TI0750B