6 - Maintenance
6.16
WARNING! Nobody is allowed to be under the boom whilst adjustment is carried out.
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.
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).
Adjustment of hydraulic cylinders are done without pressure in the system.
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.
The boom tip must point slightly forward. If necessary adjust the
inner section folding as follows:
1.Depressurize the folding rams.
2.Loosen counter nut (A).
3.Adjust stop screw B until the correct setting is reached.
4. Tighten counter nuts again.
Alignment of centre and inner wing sections
Readjustment boom - general info
Adjustment of 3-way-valve
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