Hardi MASTER PRO VHH, Инструкция, Страница: 59 / 82

6 - Maintenance
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Nozzle tubes and fittings
Poor seals are usually caused by:
•
Missing O-rings or gaskets
•
Damaged or incorrectly seated O-rings
•
Dry or deformed O-rings or gaskets
•
Foreign bodies
In case of leaks:
DO NOT overtighten. Disassemble, check condition and position of O-
ring or gasket. Clean, lubricate and reassemble.
The O-ring must be lubricated ALL THE WAY ROUND before fitting on to
the nozzle tube. Use non-mineral lubricant.
For AXIAL connections, a little mechanical leverage may be used. For
RADIAL connections only tighten by hand.
Shield renewal on transmission shaft
See the manufacturer’s instruction book.
Replacement of transmission shaft cross journals
See the manufacturer’s instruction book.
Change of bulbs
1.
Switch off the light.
2.
Loosen the screws on the lamp and remove the cover or lens.
3.
Remove the bulb.
4.
Fit a new bulb, refit the cover and tighten the screws.
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ATTENTION! If halogen bulbs are used, never touch the bulb with your fingers. Natural moisture in the skin will cause
the bulb to burn out when the light is switched on. Always use a clean cloth or tissue when handling halogen bulbs.
Safety valve activation
To make the fluid system work perfectly over time, it is good practice to regularly provoke opening of the safety valve.
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This avoids clogging and ensures proper function of the safety valve. This is done by turning the pressure valve to an
unused function when pump is running. This is good practice for all but particularly for sprayers without optional
equipment.