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4.3.10.
Inspect the cylinders, and lubricate the joint bearings
1. Lifting cylinder:
• drive the lift cylinder to its upper position from the chassis control panel
• inspect the condition of the piston rod and tightness of the connections
• check the condition of the articulation bearings and their pins as well as the
attachment of the pins
• drive the lift cylinder to its lower position from the chassis control panel
2. Telescope cylinder:
• retract the telescope cylinder from the chassis control panel
• extend the telescope cylinder from the chassis control panel
• check the condition of the cylinder, the piston rod and tightness of the connections
• check the condition of the articulation bearings and their pins as well as the
attachment of the pins
3. Lubricate the joints of the lifting cylinder, the telescope cylinder and the levelling cylinders
as well as the articulation bearings on the boom.
4. Check the condition of the slave cylinder guard of the levelling system.
5. Check the condition of the master and slave cylinder bearings and pins as well as the
locking of the pins.
6. Lifting cylinder of the articulated arms:
• extend the articulated arm cylinders from the chassis control panel
• check the condition of the cylinders, the piston rods, the wiper rings and tightness of
the connections
• check the condition of the articulation bearings and their pins as well as the
attachment of the pins
• Lubricate the articulation bearings of the articulated arm system
7. Outrigger cylinders:
• lower the outriggers to the support position
• check the condition of the cylinder, the piston rods and tightness of the connections
• check the condition of the articulation bearings and their pins as well as the
attachment of the pins
• lubricate the articulation bearings of the outrigger cylinders and the outriggers
• check the condition of the cylinder guards
4.3.11.
Check the battery, the electrical appliances and the wiring
Check thoroughly the electric system
• check that the control centre boxes are dry, clean and tight.
• check the condition of the cable connections and their protection against moisture
• check the condition and attachment of the limit switches
• check the limit switch lead-throughs for tightness
• check the connections of the electric valves
• check the connections of the solenoid valves
• perform visual inspection of all electric wiring
• check the condition of the mains cable plug
• check the condition of the electric motor.
