RDA 500-800 S
Ver.2 01.11.2002
97
The drill is sinking, i.e. it drills
deeper than the set drilling
depth!
- Is the O-ring on the master ram's cut-off valve dam-
”5.14 Changing the valve seals
on the master ram” on page 84.
- Does the stop bolt touch the bottom at the rod's upper
end? In this case the spring has been compressed or is
damaged.
The discs do not rotate properly!
- Are the seed boxes exposed to undue stress? The seed
boxes should sit very lightly.
- Is the soil very soft? It may be necessary to compact
the soil using a roller.
- Is the sowing depth too shallow?
- Have the seed boxes been installed too low? The discs
afford better traction if the seed boxes are raised one
notch.
- Are discs excessively worn?
- Does the soil surface contain a lot of plant scrubs?
- Are the tines of the front implement set too hard re-
sulting in soil that is too loose?
The drill does not place seed at
the bottom of the furrow!
- Are the seed boxes excessively worn?
- Are the seed boxes set one notch too high? The drill
will place the seed more precisely if the boxes are set
low. This does not normally need to be changed for
different soil types.
Irregular fan speed (hydraulic
feed output)!
- Replace the hydraulic filter.
Irregular output seed amount
(hydraulic feed output)!
- Replace the proportional valve in the fan unit.
The left seed box does not rotate
although the drive unit rotates!
- Check and replace the roll pin between the seed box
and drive unit if necessary
Summary of Contents for RAPID RDA S Series
Page 1: ...Ver 2 01 11 2002 900225 en Instructions Seed drill RAPID series RDA 500 800 S No 12 000 12 799...
Page 2: ...2 Ver 2 01 11 2002...
Page 4: ...4...
Page 73: ...RDA 500 800 S Ver 2 01 11 2002 73...
Page 75: ...RDA 500 800 S Ver 2 01 11 2002 75 Figure 5 4...
Page 105: ...RDA 500 800 S Ver 2 01 11 2002 105...
Page 108: ...Appendices 108 Ver 2 01 11 2002 7 3 2 Hydraulic diagram RDA 800 S Figure 7 2 428718...
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