Ransburg MCV2 Dual Purge Color Changer A10986-XX_A10993-XX - Manual (Page 21)

NOTE
> If bubbles are observed, dismantle color
changer manifold and repair as required.
TEST AND CHECKOUT
PROCEDURE FOR COLOR
CHANGER
Step 1:
1. Connect air line to a regulated air supply.
2. Attach the air line to a ball valve assembled to
the outlet of the color changer.
3. Adjust the air supply pressure to 100 psi (6.9 bar).
4. Open the ball valve at the outlet of the color
changer.
5. Apply a soap solution on the color changer
manifold.
6. Check the manifold assembly’s mating sur-
faces between color blocks for soap bubbles.
7. If no bubbles are present, rinse manifold with
water and blow dry with air.
Step 2:
1. Attach two (2) regulated air supply hoses, one
with a 3-way valve (normally closed) for operating
the color valve cylinder on the color changer. (Set
the pressure to the 3-way valve at 75 psi (5.8 bar)
or more.)
The second hose will be used for supplying 100
psi (6.9 bar) of air to the color inlet port of each
color changer valve.
2. Connect the air supply hose with 100 psi (6.9
bar) to color inlet valve. Connect a 2-way ball
valve to the matching return port on the color
changer manifold.
3. Turn the ball valve installed on the paint circu-
lation fitting to verify recirculation ability.
4. Connect the air supply with a 3-way valve
(normally closed) to the color valve cylinder.
5. Activate the 3-way valve to operate the color
valve.
6. Deactivate the 3-way valve and close the
color valves.
7. Connect a 1/4-inch (6.4 cm) ID hose 3-feet
(91.4cm) long to the outlet of the color changer.
8. Acquire a container of water and fill it with
about 4-inches (10.6 cm) of WATER.
Position the hose in the container filled with
water.
NOTE
> Ensure valve is closed when completed.
NOTE
> The piston rod on the top of the color
valve assembly should EXTEND and air
should blow out of the color changer outlet.
Check for a crisp and sharp actuation of
the color valve air cylinder.
NOTE
> The piston rod on the top of the color
valve assembly should be RETRACTED,
and the air should have stopped blowing
out of the outlet of the color changer.
MCV 2 Dual Purge Color Changer - Maintenance
18 CS-05-01.9
Ransburg