11
Anti-freeze precaution
If the sprayer is not stored in a frost free place you should take the
following precautions: Put at least 10 litres of 33% anti-freeze mixture
in the tank and let the pump run a few minutes so that the entire
system including spray hose are filled. The anti-freeze solution also
hinders the O-rings and gaskets from drying out.
Remove the glycerine filled pressure gauge and store it frost free in
vertical position. The anti-freeze solution also hinders the O-rings and
gaskets from drying out.
Relieve the pressure regulating spring.
Operational problems
In cases where breakdowns have occurred the same factors always
seem to come into play:
• Minor leaks on the suction side of the pump will reduce the pump
capacity or stop the suction completely.
• A clogged suction filter will hinder or prevent suction so that the
pump does not operate satisfactorily.
• Clogged up pressure filters will result in increasing pressure at the
pressure gauge but lower pressure at the nozzles.
• Foreign bodies stuck in the pump valves with the result that these
cannot close tightly against the valve seat. This reduces pump
efficiency.
• Poorly reassembled pumps, especially diaphragm covers will allow
the pump to suck air resulting in reduced or no capacity.
• Unclean electric components causes poor connections.
Therefore ALWAYS check:
1. Suction, pressure and nozzle filters are clean.
2. Hoses for leaks and cracks, paying particular attention to suction
hoses.
3. Gaskets and O-rings are present and in good condition.
4. Pressure gauge is in good working order. Correct dosage depends
on it.
5. Operating unit functions properly. Use clean water to check.
6. Keep the electric components clean.
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