7
6. To stop liquid flow to the spray lance turn main ON/OFF to pos. 1B,
then there will be no pressure in the sprayer and the capacity of the
whole pump is led through the by-pass to the tank.
NOTE: Higher working pressure means smaller drops = better
coverage, but increased risk of wind drift.
Adjustment of the BK controls
1. Fill the sprayer tank with clean water.
2. Start the engine.
3. Turn main ON/OFF handle to spraying position 1A.
4. Open the pressure agitation valve 3, if supplied (tight spring ten-
sion).
5. Open the distribution valves 4A.
6. Set the pressure control valve 2 at 3 bar more than normal working
pressure to check possible leaks. Reduce the pressure to normal
working pressure.
7. Close the distribution valves 4B one by one. Adjust on pressure
equalization valves 5 if the pressure increases/drops.
8. Turn main ON/OFF and the capacity of the whole pump is led
through the by-pass to the tank.
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