KUHN GMD 801, Assembly & Operators Manual

Page: 39 / 48

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TROUBLE SHOOTING GUIDE
PROBLEM CAUSE REMEDY
Uneven stubble Too much tilt on cutterbar Reduce tilt (see page 23)
Low PTO speed (rotational Increase engine speed (rotational fre-
frequency) quency) to run PTO at 1000 rpm (min
-1
)
Knives not installed Make sure that the arrow on the knife
correctly upper face is pointing in the direction
of rotation of the disc (see page 32)
Low disc speed (rotational Check belt for correct tension
frequency) (see page 31)
Dull or broken knives Replace knives (see page 32)
Stubble too long Incorrect angle on cutterbar Change cutterbar angle using
tractor top link (see page 23)
Insufficient cutterbar Adjust compensating spring tension
down pressure (see page 24)
Soil build up in front of Very wet conditions Adjust main frame height by
cutterbar shortening chain as necessary
(see pages 21 - 22)
Too much cutterbar Adjust compensating spring tension
down pressure (see page 24)
Cutterbar not floating Main frame setting incorrect Adjust main frame as described
on pages 21 and 22
Machine breaking back Insufficient tension on Tighten breakaway spring
too easily breakaway spring washers washers (see page 25)
Machine does not lower The hydraulic hose coupler Replace coupler
into its work position connecting the machine
to the tractor is worn
Cutting height difficult Excessive pressure Rest the machine on its parking stand
to adjust on top link (see page 26 for correct procedure)
Machine cannot be coupled The 3-point frame is not hori- - Check the cutterbar horizontal
or uncoupled easily zontal in detached position position (page 18)
- Use the correct procedure for
detaching machine (page 26)
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