13
CLEANING INSTRUCTIONS
As with all spray equipment, your sprayer must be cleaned
properly or it will not operate properly. Clogged valves and filters
are the most common causes of problems. If followed, these
guidelines will insure trouble free performance from your sprayer.
CAUTION: Clean with water if latex is used. Clean with paint
thinners for oil based paints. Both water and paint thinner will be
refered to as "solvent" from here on in.
Warning: Special cleanup instructions for use with flammable
solvents:
• Always flush spray gun preferably outside and at least one hose
length from spray pump.
• If collecting flushed solvents in a one gallon metal container,
place it into an empty five gallon container, then flush solvents.
• Area must be free of flammable vapors.
CLEAN-UP:
To get the best use and longest life from your sprayer, it is very
important to clean it out properly. The procedure is simple and is very
similar to the flushing procedure performed earlier. Cleaning and
flushing would also be required when changing color, or type of paint, ie:
latex changing to oil base.
1) Lock gun trigger, turn pressure control to minimum, open prime
valve to release all system pressure.
2) Turn zip tip to halfway position and remove from gun. (if so
equipped).
3) While unit is running in prime zone, with prime valve open, tilt unit
back (or lift suction system out of pail) and allow it 10-15 seconds to
pump out paint.
Figure 12. Pump fluid out.
4) Place suction tube in proper solvent. Clean outside of metal suction
tube.
Figure 13. Clean pump with suitable solvent .
5) Turn pressure control to minimum and close prime valve.
6) Unlock trigger, and with spray tip still removed and pressure in prime
zone, aim gun into paint pail and hold trigger open until paint flow
stops and solvent flow just begins. Release trigger. Aim gun into
solvent pail/hopper and circulate solvent for about two minutes. To
reduce splashing, direct the fluid stream along inside of bucket at a
side angle and well above the fluid level (or submerge the tip in the
solvent). Release trigger. Point spray gun into an empty waste
bucket and spray at least 1 gallon of fluid into it. (see figure 14).
Figure 14. Pump until clean solvent appears.
Warning: conductive metal containers must be used when flushing
flammable fluids through the system. Always flush at low pressure
with spray tip removed. A metal part of the spray gun must be held
firmly against the grounded metal pail when flushing or relieving
pressure from the gun.
7) Pump solvent out by lifting both suction and return hose out of the
solvent. Turn pressure control to minimum and open prime valve to
release system pressure. Lock trigger and cleanspray tip before re-
installing on gun.
Figure 15. Fluid is pumped out.
8) Follow above steps 1-7 using clean solvent to completely flush unit.
9) If changing paint types, ie: latex (water base) to oil base, you would
have to flush unit with clean mineral spirits using above steps 1-7.
This would prepare the pump for the oil base paint. Water would
have to be used as a last flush if changing from oil base paints to
latex.
10) Ensure pressure control is turned to minimum and all pressure is
released. Open prime valve. Turn pump OFF.
11) Unthread gun handle from gun body to access gun filter. Remove
filter and brush clean with appropriate solvent. Inspect filter for
pinholes, plugging, or other damage. Replace if required. Re-install
with “double lip” end pointing up into gun. Lightly grease handle
threads (petroleum jelly, auto grease) and re-install firm hand tight.
Brush exterior of gun clean.
12) Remove intake screen on metal suction tube and brush clean, re-
install.
13) Storing unit for more than 3 days. If unit was cleaned with an oily
paint thinner such as varsol, the unit is now ready for storage (after
step 14). If unit was cleaned with water or a strong thinner (ie.
lacquer thinner) pump varsol (or mineral spirits) through the entire
system by repeating step 8. If varsol is not available, drain all the
solvent out of the hose, gun, and pump. (Tungsten carbide parts in
the valves will corrode if left in water for long periods of time).
14) Coil up electrical cord and spray hose, inspecting both for signs of
damage. Suggested minimum coil size for 1/4" paint hose is 18
inches.
DO NOT COIL PAINT HOSE TOO TIGHTLY. THIS MAY CAUSE
KINKS, WHICH WEAKEN THE HOSE. A PAINT HOSE WITH KINKS
OR OTHER DAMAGE SHOULD BE CONSIDERED UNSAFE AND BE
REPLACED IMMEDIATELY.
WARNING: DO NOT CLEAN THE SPRAY GUN UNLESS THE
PRESSURE HAS BEEN RELEASED FROM THE SYSTEM. SEE
FRONT OF MANUAL FOR FURTHER PRECAUTIONS.
Warning!
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