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4. Cleaning of nozzle unit:
If your hazer seems to work normally, but haze output is reduced, the V-TEC cracker
nozzles may be clogged. Ultimate 300 is equipped with the easyclean feature,
allowing for an easy and quick service of the nozzle unit.
NOTE: It is very important to perform the cleaning work properly, if the nozzles
are not assembled correct, there is a risk of low haze output, and a damaged
compressor.
1. Remove the air supply tube.
2. Remove the 4 screws that hold the nozzle plate.
3. Work the nozzle unit out of the tank.
4. Wipe the nozzle unit off with a cloth or paper.
5. Remove the 3 fluid tubes from the nozzle body.
6. Remove the 2 nuts from the nozzle body. Release the plate holding the fluid filter
from the nozzle body.
7. Remove the 3 screws that hold the nozzle body together.
8. Remove the front part of the nozzle body.
9. Remove the rubber gaskets from the brass nozzles.
10. Carefully clean the 3 brass nozzles by using a small brush (like a toothbrush), and
an alcohol based cleaning liquid or spirit. Check and clean the small output hole
in the nozzle. Do not leave any dust or dirt inside the nozzle. Clean all sides of
the nozzle, do not leave any dirt. Use compressed air to clean the small hole in the
brass nozzle
11. Clean the front part of the nozzle body: clean the output holes from dirt.
12. Put the small brass nozzles back; put them in the correct holes in the back part of
the nozzle body. NOTE: Do not forget the rubber gaskets: 3 pcs. for each
brass nozzle.
13. Put the o-ring gasket back.
14. Put the front part of the nozzle body back. Ensure a correct position.
15. Assemble the 3 screws. NOTE: the upper screws are short, the two lower screws
are long. Tighten each screw until there is no gap between the front and back parts
of the nozzle body. Then tighten each screw ¼ of a turn more.
16. Check the fluid filter. If it seems to be dirty, replace it with a new one. Normally,
the fluid filter does not need to be replaced.
17. Check the fluid tubes between the fluid filter and the nozzle body. If there is dirt
inside, the fluid filter (see above) and the tubes must be replaced. Put the tube
back again.
18. Check the sealing gasket that is placed around the access hole on top of the tank,
between the tank and the nozzle plate.
19. Now your nozzle unit is as good as new! Put it back through the hole in the tank.
20. Tighten all 4 screws. NOTE: Do NOT tighten too hard – it may damage the
sealing gasket. Tighten each screw until there is no gap between the cover plate,
the gasket and the tank. Then tighten ¼ of a turn more.
5. Replacing the electric motor of the output fan:
If the output fan is not working, check as follows:
• Use a voltage meter to ensure mains power is supplied to the fan. If not, check the
problem.
• If mains power is supplied, and the fan still does not work, check that the fan
wheel can be rotated easily. If so, the motor must be replaced. If not, then check
and solve the problem. Disconnect from mains before proceeding the operation:
1. Disconnect the two fast-on electric connectors underneath the motor.
2. The motor is fixed with a bayonet system: twist the motor approx. 1/8 of a turn
anti-clockwise. When the motor is released, pull it out from the fan wheel.
3. Replace with a new fan motor of the same type and size. NOTE: Use Swefog
original spare parts only.
4. Push the motor spindle through the rubber hole in the fan wheel.
5. Place the motor so that it fits into the bayonet holes on the fan housing.
6. Twist the motor approx. 1/8 of a turn clockwise, until the motor is in the right
position.
7. Connect the fan cables. Then bend the cable and connector 90° towards the
electric coil.
8. Finally, the fan wheel has to be adjusted. Use a screwdriver and adjust the fan
wheel until it rotates freely.
TOOLS REQUIRED:
PH 2 screwdriver
Paper or a cloth
8 mm nut tightener
TX 20 screwdriver
A small brush, i.e. a
toothbrush.
Light spirit or alcohol-based
cleaning liquid, and a cup for
cleaning.
Compressed air @ 6-8 bars,
and an air blow gun.
SPARE PARTS REQUIRED:
3x3 = 9 rubber gaskets for
the small brass nozzles*
1 O-ring gasket*
1 sealing gasket around the
access hole in the tank*
*) = included in the nozzle
cleaning service kit, item no.
U23-KT2.
the above spare parts included
in the U23 service kit available
from your dealer.
TOOLS REQUIRED:
Voltage meter
A screwdriver
SPARE PARTS REQUIRED:
1 x fan motor 120 or 240 V