3. ADJUSTMENTS AND DRIVING
ROLLER CONDITIONER (SC MODELS)
The machine with roller conditioner with rubber profiles of the chevron type is from
the factory fitted with a special sprocket wheel in the transmission which provides
1000 rpm on the rollers. This speed is standard on the machines with rollers.
CONDITIONING
Conditioning should be hard enough to obtain sufficiently fast drying, but not harder
than that. The right degree of conditioning may be difficult to estimate, especially in
pure grass crops.
The stems should be bruised but not broken. Broken leafs and stems will result in
unnecessary waste.
Too hard conditioning results in stems having a dark green colour and giving off
liquid.
The reason may be:
-
That the rollers are too close
-
that the roller pressure is too high and
-
that the driving speed is too low.
Fig. 3-18 Too gentle conditioning is characterised by the stems standing upright when a
bunch is held in the hand.
The reason may be:
-
that the roller distance is too long
-
that the roller pressure is too low and
-
that the driving speed is too high.
It may be difficult to make out whether the conditioning is optimal, but do not get
tempted to exaggerate the conditioning. It is usually sufficient, even if it cannot
immediately be seen on the grass.
ROLLER PRESSURE
Fig. 3-19 In order to obtain a suitable roller pressure in large as well as small amounts of
Fig. 3-20 grass, the upper roller is spring-loaded and the springs also make it possible for the
rollers to give way if foreign matter gets between the rollers.
The roller pressure is adjusted on both sides of the machine at the springs A.
The following can be used as a guide:
-
In pure grass crops the springs are tightened.
-
In clover, alfalfa and similar leafy crops the springs are loosened.
IMPORTANT: The springs must be adjusted equally in both sides.
To make sure there is enough travel, the spring should
maximum be tightened 24 mm.
This means that the length of the spring should be minimum 226
mm.
PIGB-093X-06 GX 2402/2802/3202 SM-GX 2402/2802 SC 0410
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