Ransburg Evolver 303 Solvent Applicator A11976-XXX - Manual (Page 32)

2. Turn the MicroPak control unit ON! Energize
high voltage.
Shut-Down (Or at Shift End)
1. Turn the MicroPak control unit OFF.
2. Flush the lines and allow the solvent to remain
in the lines. See "Procedures" in the "Mainte-
nance" section.
3. Wipe the applicator (including the air cap)
and robot wrist with a cloth and a suitable, clean
non-polar solvent.
Weekly
1. Check the entire system for damage, leaks,
and paint accumulation.
2. Clean the atomizer assembly.
3. Conduct a current output test. See "Proce-
dures" in the "Maintenance" section.
PROCEDURES
Applicator Cleaning/Service
(See Figure 10a and 10b)
1. Flush the paint supply line and the applicator
paint passages using a solvent which is compatible
with the material being sprayed. Continue to flush
until all traces of paint are gone.
2. Turn off the solvent supply, actuate paint push-
out air at color changer, and trigger the applicator
and PT. Allow all of the fluid to drain from the
spray applicator fluid passages.
3. Clean the exterior surfaces of the spray appli-
cator with a solvent soaked rag. As long as the
applicator is intact, a polar solvent may be used
for all cleaning, however, after cleaning, wipe off
all surfaces with a non-polar solvent to reduce
conductive residue on the applicator's surface.
(See "Polar & Non-Polar Solvents Chart" in the
"Maintenance" section regarding proper solvent
selection.)
>
Failure to use a non-polar solvent may
cause a decrease in voltage at the tip of the
applicator. This will significantly decrease
transfer efficiency.
C A U T I O N
!
4. Remove end cap [1]. Removing the end cap
releases tension on all internal spray head compo-
nents. Remove needle spring [2] and valve spring
[3], which are loose after removing the end cap.
5. Remove the air cap retainer [36] and air cap
[35]. Soak in a non-polar solvent if necessary. If
paint remains in the air cap holes, clean with a
toothpick or similar soft wood object. Air caps are
best cleaned in an ultrasonic cleaner.
6. Remove the air cap locator [33] and fluid tip
[34]. Clean using a non-polar solvent.
7. Tightly grip the plastic needle [6] and unscrew
counter-clockwise to remove the front electrode
needle assembly. A short piece of H-2339 tub-
ing (1/4" OD x 0.175" ID) pressed over the front
needle will assist in unscrewing the assembly.
If required, use needle nose pliers with masking
tape or duct tape. Carefully clean with a non-polar
solvent. Replace any parts that show signs of
wear or damage.
>
Never attempt to clean the air cap holes
with a wire or other metal object. Doing so
may damage the air cap, resulting in distor-
tion of the spray pattern.
C A U T I O N
!
>
If using needle nose pliers to unscrew the
front needle, be very careful. Do not grip on
the tapered sealing surface. If the pliers slip,
they could damage the tapered sealing surface
of the needle.
C A U T I O N
!
29
Evolver 303 Robotic Atomizers - Maintenance
Ransburg
AA-07-03.2