Maschio F07011424, Use And Maintenance

Page: 35 / 96

USE AND MAINTENANCE
35
ENGLISH
cod. F07011424
3.8 ADJUSTABLE SIDE SHIELDS
Side shields (7 pic.20) prevent that the external operating hollow
discs leave a groove or a dam on the soil tilled surface.
Side shields are inserted in wing pipes (8 pic.20) and fixed with
a pin and bolts.
During work, side shields must graze ground surface (without
sink in the soil!) and be adjusted as shown in the following picture:
the right one must work parallel to the running direction, while the
left one inclined to this direction.(pic.20)
Depth-adjustable operating hollow disc (8 pic.20) must have a
working depth halved than the working depth of the other hollow
discs and intercept the soil-flow conveyed by the left side shield.
In this way the harrow will leave a perfect-worked and planar soil
surface.
ATTENTION
Implement operating hollow discs generate lateral forces
which counterbalanced each other.
If the implement is misaligned with the running direction
and:
- Misaligned on the right (predominant front gang forces)
lift up carefully with the tractor hydraulic linkage (or act carefully
on lifter stress control -if in use- by rotating to lower values);
- Misaligned on the left (predominant rear gang forces)
lower carefully with the tractor hydraulic linkage (or act carefully
on lifter stress control -if in use- by rotating to higher values).
Maybe that in presence of left implement misalignement, when
you try to solve it by lowering in order to realign the implement, it
will accentuate its movement to the left.
The reason is that greater the front gang working depth the gre -
ater the quantity of soil that rear discs engage, amplifying their
lateral forces.
In this case lower the front with tractor hydraulic linkage
and lift up on the rear with roller regulation pins.
ATTENTION
Act only on tractor hydraulic lifter (mantaining the tractor spool
valve – carriage – locked) without lifting up the implement
back: the frame weight is supported in the back by transport
wheels preserving rollers integrity.
Fig. 20
7 8