Maintenance
147
Stone guard and
counter knife
Safety concerning maintenance work on the cutting unit
When working on the cutting unit the tractor must be stopped and
secured.
This prevents the machine from suddenly starting to rotate.
If the tractor and the PTO shaft have not been connected in
accordance with the instructions, serious accidents causing damage
to limbs can occur.
When working on the transmission:
• The tractor engine must be stopped.
• The ignition key must be removed.
• The tractor's PTO must be disconnected.
• The tractor hydraulic system must be disconnected.
• The hand brake should be activated.
As required
»Maintenance intervals« page 79
The stone guard and counter knife are changed as follows:
Activate the tractor hydraulics and raise the machine fully.
Close the mechanical safety valve.
Place the correct support under the machine's cutting unit.
It is important that the machine is correctly secured with a sturdy
support before work is started.
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