115
ADJUSTMENTS - MAINTENANCE
FORAGE HARVESTER DRAW BAR - FIGURE 160
The position of the Forage Harvester draw bar (item 1)
should be ”as straight” as possible in order to reduce
the misalignment of the transmission shaft. This will also
extend useful life of the universal joints while reducing
vibrations.
Figure 160 Forage harvester draw bar
Also, the more the draw bar is straight the more the
Forage Harvester and Forage Box are within the tractor
traction line.
NOTE
: Keep an angle as close to 90
0
as possible be-
tween the draw bar and the Forage Harvester
wheel axle.
WARNING: Make sure that all movements of parts
in the Forage Harvester has stopped before servi-
cing or repairing the machine.
FEED ROLL BALANCING SPRINGS - FIGURE 161
Both upper rolls are of the ”floating” type and their verti-
cal motions are limited by four springs (item 1). The ver-
tical displacement of these rolls is interdependent and
controlled by stabilizing bars (item 2). This will prevent
the rolls from being squeezed against the inlet walls.
There are two springs on each outer sides of the feeding
inlet; their purpose is to apply pressure onto the feed
rolls when material enters the machine.
When there is no material this tension is equal to an ap-
proximate 1/2” (1.25cm) stretching of the springs.
The standard adjustment leaves a small clearance of
1/16” (1.6) between the head of the bolt (item 3) and the
plate (item 4).
Use the nuts (item 5) to adjust the spring tension.
1/16”
(1.5 mm)
4
5
1
2
3
Figure 161 Feed roll balancing springs
Manual
No
. F4117E987E V1.1