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9.4 CRANE SERVICING
9.4.1 Oil level checking
The oil level must be checked daily, with the crane in rest position and the truck on flat ground If necessary
top up with hydraulic oil. The level is checked by mean of the dipstick. (1)
9.4.2 Oil change
The oil deteriorates during daily usage. The oil change every year is necessary to avoid damages to the
hydraulic system. Take a container with a capacity of 40 liters (10 gal.) and having suitable dimensions to be
positioned under the oil drain plug. (2)
ATTENTION
It is forbidden to pollute the environment with exhausted oil.
After the replacement, it is important to carry out a bleeding of the circuit, otherwise the air introduced in the
system with this operation may damage the sealing parts. To do that, operate every function of the control
valve, driving it smoothly to stroke end.
Use only the oils stated in the greasing/lubricating table, or equivalent ones. (chap. 9.5)
9.4.3 Oil filter replacement
• Unscrew the screws (3) holding the filter case.
• Pull the case out without damaging the OR.
• Loosen the nut (5) and take the cartridge (4) off.
• Replace it with a new one, of the same type, and tighten the nut (5) again.
• Check the seal for satisfactory condition, if not replace by new one.
• Insert the filter group in its housing and tighten the relevant screws.
• After a filter replacement, bleed the air off the circuit as explained on point 9.4.2.
Pict. 20
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