CTE ZED 23.2 JH, Руководство по эксплуатации и обслуживанию, Страница: 39 / 56

Use and maintenance manual
ZED 23.2 JH
Code n°UM0260_GB
37
5.5 Mechanics
5.5.1 General mechanics
The mechanical parts in mutual rotation must be periodically inspected, controlling the
tightness of the nuts, screws and bolts in order to check any loosening. Before use,
visually check fixing screws and nuts of the fifth wheel to the chassis and turret, of the
reducer, the connection of the bracket fixing the rotating joint to the turret, the pin
retainers, the fixing nuts to the truck, every other bolt, especially the parts subject to
vibrations and movements. Before use, visually check all structural components in
order to check for cracks in the welding, corrosion or signs of deterioration. After the
first 100 hours and, successively, every 6 months or 500 hours, check:
•
the tightness of the fifth wheel fixing nuts with dynamometric wrench (consult the
"Coupling torques) table
•
the tightness of all turret rotation reducer bolts with dynamometric wrench
(consult the "Coupling torques) table
•
the tightness of all connecting bolts of the counter-chassis to the truck with a
dynamometric wrench (consult the "Coupling torques) table.
5.5.2 Endothermic engine
For maintenance of the endothermic engine, follow the instructions indicated in the
manufacturer's manual for the truck.
5.6 Hydraulic plant
The hydraulic plant is made up from different components that require maintenance at
different frequencies.
5.6.1 Hydraulic cylinders
Before all use, check that there are no leaks or seepage in the following points: rod
gasket, fittings, valves and piping. In the presence of leaks or seeping do not use the
machine and contact the After-sales Service.
5.6.2 Rotating joint
Before use, check the sealing between the piping fittings and the rotating joint.
5.6.3 Hydraulic plant piping
Before all use, visually check that there are no leaks in the fittings, valves and piping.
Check that the rubber piping is integral and without cracks. In the presence of leaks,
do not use the machine and contact the After-sales Service.
5.6.4 Control pressures and valves regulation
Control maximum pressure valve: after having stabilised the platform correctly, use
the emergency control board on the ground to retract the booms by activating the
relevant control. Check that the pressure indicated by the manometer corresponds to
the value given in the technical data table.
If there is difference, contact the After-sales Centre.
ATTENTION:
all valve calibration operations must only be carried out at the
manufacturer's establishment or at Authorised Workshop.