Flushing
NOTE: Several flushes may be required to clean the system and prepare it for the next fluid or storage. Use this chart to determine the required flushes and use the procedure below for flushing.
*Use this category for flushing a brand new sprayer and flushing after storage.
System has this | Next fluid to be |
| Flushing order |
| Before you spray or store | |
fluid in it: | sprayed: |
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| sprayer: | |
Flush 1 | Flush 2 | Flush 3 | ||||
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Mineral spirits | none | none | Prime with oil | |||
or paint | new color |
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Mineral spirits | Warm soapy | Clean water | Prime with water | |||
paint |
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| water |
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Prepare for storage | Mineral spirits | none | none | Relieve pressure | ||
paint |
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| Leave drain valve open | |
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Water or water- | Water±based | Warm soapy | Clean water | none | Prime with water | |
based paint | paint ± new color | water |
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Water or water- | Warm soapy | Clean water | Mineral spirits | Prime with oil | ||
based paint |
| water |
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Water or water- | Prepare for storage | Warm soapy | Clean water | Mineral spirits | Relieve pressure | |
based paint |
| water |
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| Leave drain valve open | |
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WARNING
INJECTION HAZARD
To reduce the risk of serious bodily injury, follow the Pressure Relief Proce- dure Warning on page 11 before check-
ing or repairing any part of the spray system.
CAUTION
NEVER allow water or water±base material to freeze in the pressure control. Doing so prevents the sprayer from being started and causes serious damage to the pressure control. Pump the water out with mineral spirits.
4.Remove the spray tip from the gun.
5.Put the suction tube into a grounded metal pail with 1/2 gallon of compatible solvent.
6.Start the sprayer. See page 7. To save the fluid in the sprayer as you start to flush, trigger the gun into another container until the next fluid appears, then trigger the gun back into the fluid you are pumping. Circulate the flushing fluid a couple of minutes to thoroughly clean the system.
7.Raise the suction tube and trigger the gun to force solvent from the hose. Do not run the pump dry for more than 30 seconds to avoid damaging the pump packings! Relieve pressure.
8.Remove the suction tube and clean separately.
WARNING
FIRE AND EXPLOSION HAZARD
To reduce the risk of static sparking and
splashing when flushing, always remove the spray tip from the gun and hold a
metal part of the gun firmly to the side of grounded metal pail.
1.Relieve pressure. Engage the trigger safety latch.
2.Remove the filter bowl (B) and screen (C). Rein- stall the bowl and support (D) only. Clean the screen separately.
3.Turn the pressure adjusting knob (A) fully counter- clockwise to the minimum pressure.
9. Install the filter screen. Hand tighten the bowl.
A
C
B
D
44
Fig. 6 | 01749A |
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3783 9