- 22 -
Shear bolt
If during work the discs stop rotating, disengage the PTO, stop the tractor engine, remove ignition key and wait for
all rotating parts to stop before leaving the tractor.
Replace shear bolt after having removed the access plate (T) (photo 24).
Replace the sheared screw by a new screw (V) (code 800 608 50) (M 8 x 50, DIN 931 grade 8.8) fitted with a self-
locking nut (photo 24) and mount the access plate (T) back on.
NOTE :
The PTO drive must not be engaged/disengaged on tractors with hydraulic PTO clutches/breaks unless
the nominal engine speed (rotational frequency) is reduced.
ADJUSTMENTS
CUTTING HEIGHT
Maximum cutting height - 80 mm (3 1/6") - (fig.1) is obtained when discs are parallel to the ground. Cutting height
is adjusted by altering the angle of the cutterbar in respect to the ground and is carried out by changing the length
of top link (P) (photo 23, page 21).
Minimum cutting height must not be below 30 mm (1.2") (fig.2).
Cutting too close to the ground will cause excessive wear on the discs and knives and could cause crop to become
soiled by the ground.
A cutting height of 55 mm can be obtained by replacing the end disc skids by 2 raised skid shoes (see optional
equipment). This equipment enables easy parking of the machine without having to alter the top link length.
Summary of Contents for GMD 602 F
Page 11: ... 9 ...
