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30 – English
Maintenance
Tilt angle
• Place the machine on a flat surface.
• Check the tyre pressures. The tyre pressure should be 1.5
bar/150 kPa/22 PSI for all wheels
The air pressure in the cutting unit pivot wheel must be
150 kPa/1.5 bar/22 psi.
• Measure the distance between the ground and the front
and rear edges of the cutting unit hood.
• The rear edge of the cutting unit should be 6-9 mm (1/4"-
3/8") higher than the front of the unit.
• Loosen the lock nut and turn the adjusting screw. Extend
the brace to raise the rear edge of the cutting unit.
• Lock the nut against the brace.
Replacing the cutting unit belts
On these cutting units with collision-proof blades, the blades
are driven by one V-belt. Do as follows to change the V-belt:
1 Remove the cutting unit.
2 Remove the screws holding the belt cover and lift it off.
3 Pull the belt off the pulleys. Use a crowbar as necessary
to de-tension the spring and release the belt tension.
4 Loosen two screws and remove the other three for the
bevel gear. Turn the bevel gear so that the belt can be fed
under the pulley.
5 Check that the belt tensioning equipment is not jammed or
binding and replace the spring.
6 Insert the new belt in place and replace the bevel gear.
The bevel gear is tightened to a torque of 47 Nm.
7 Fit the belt around the pulleys. The belt tightening
schedule is on a decal located on the cutting unit under
the belt cover.
8 Fit covers.
9 Attach the cutting unit to the machine, see Attaching the
cutting unit.
Checking the blades
To achieve the best mowing results it is important that the
blades are undamaged and well-sharpened.
Check that the blades’ attachment screws are tight. Screws
should be torque tightened to 84 Nm.
The blades should be balanced after sharpening.
Damaged blades should be replaced when hitting obstacles
that result in a breakdown. Let the service centre assess
whether the blade can be sharpened or must be replaced.
Removing the BioClip plug
To change a Combi unit from BioClip function to cutting unit
with rear ejection, remove the BioClip plug located under the
unit with three screws.
1 Put the unit in the service position, see Placing in the
service position.
2 Remove the three screws holding the BioClip plug, and
remove the plug.
3 Tip: Fit three full-thread screws M8x15 mm in the screw
holes to protect the threads.
4 Replace the unit in normal position.
Fit the BioClip plug in the reverse order.
!
WARNING! Protect your hands with gloves
There is a risk of crush injuries when
working with the belt.
IMPORTANT INFORMATION Replacing or sharpening the
blades should be conducted by an authorised service
workshop.