3.4.6 - PERIODICAL REPLACEMENT OF THE MAIN SAFETY COMPONENTS
Periodically check the following components, important for fire prevention:
• Supply system: fuel delivery and return pipes;
• Hydraulic system: main delivery pipes of the hydraulic motors;
• Hydraulic system: pipes for utilities from the control valve to the hydraulic cylinders.
Carefully check the state of efficiency and cleanliness of the quick coupling devices supplied with the
machine.
Even if they appear to be in a good state, these components have to be replaced periodically with new
pieces. Over time, these components in fact tend to deteriorate. In the case that one of these parts is
defective, replace or repair it even if it is still not past its expiry date.
3.4.7 - HYDRAULIC SYSTEM
When the machine's engine is switched off, there may be a residual pressure of 2 bar on all its hydraulic
systems.
In order to discharge this pressure from the systems for carrying out maintenance, proceed as follows:
1. Lower the lifting device completely;
2. If the cutting head is attached, close the guard;
3. Make sure that the engine has been switched off and that the mechanisms are stationary.
4. Loosen the fittings of the lifter cylinders;
5. Loosen the fittings of the guard-opening cylinder;
6. Loosen the fittings of the drainage lines of the translation and cutting head motors;
7. As regards the control valve, the pressure equalizes with that of the tank;
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