Hardi Ranger 550, Инструкция

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6 - Maintenance
6.7
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 hand-tighten them.
Adjustment of 3-way-valve
The MANIFOLD valve can be adjusted if it is too tight to operate - or if it
is too loose (=liquid leakage). Correct setting is when the valve can be
operated smoothly by one hand. Use a suitable tool and adjust the
toothed ring inside the valve as shown on the drawing.
Readjustment boom - general info
Before commencing adjustment jobs please go through this check list.
1 . The sprayer must be well lubricated (see part about lubrication).
2. Connect the sprayer to the tractor.
3. Place tractor and sprayer on level ground (horizontal).
4 . Unfold boom.
5 . Set slanting angle to neutral position (horizontal).
6. Adjustment of hydraulic cylinders are done without pressure in the system.
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WARNING! Nobody is allowed to be under the boom while adjustment is carried out.