GMD 3150/3550/4050 TL CE
36
8. - Instructions for work
7N136AGB-A
Disk mower
8.2
Adjustments in working position
8.2.1 Cutting height
The height can be adjusted from 1-3.2’’ / 2.5-
8.1 cm. Centralized adjustment by means of a pitch
angle adjustment rod fitted with a graduated
scale (1).
To adjust the cutting height:
- Lift lock (2).
- Turn clockwise to reduce cutting height (a).
- Turn counter-clockwise to increase the cutting
height (b).
- Lower lock (2).
-
-
Before adjusting, maintaining or repairing
the machine, perform the safety shutdown
procedure.
Place the machine on flat ground.
The cutting height is adjusted with the
machine attached. Hitch pins should be at
620 mm (2’) from the ground when using a
two-point hitch, and 330-560 mm (13’’-22’’)
from the ground when using a drawbar hitch.
Cutting height is always adjusted before
adjusting the ground pressure.
The maximum cutting height (L1 = 3.2’’ / 8.1 cm)
is obtained when the disks are parallel to the
ground.
The minimum cutting height must not be below
(L2 = 1’’ / 2.5 cm).
Too low a cutting height can lead to:
Excessive disk and knife wear.
Crop being contaminated by soil.
Delay in regrowth.
2
1
L1
L2
