horsch Panther 440, Руководство пользователя

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P a n t h e r S e r i e s O w n e r ’ s M a n u a l 95 | P a g e
Cylinder Rod Maintenance
PRP (Piston Rod Protection)
Chrome plated piston rod and bar products normally contain a minimum of 20 microns to 50
microns hard chrome plate, depending upon the product specifications. This hard chrome plating
is applied primarily for wear resistance, though it does considerable corrosion resistance as well.
Once the shaft is assembled into a cylinder and put into service, the hydraulic fluid on the surface
provides additional corrosion resistance that is normally sufficient to protect the shaft during its
entire life. However, there are occasions when the shaft is not being worked and when the surface
is exposed to a corrosive environment. For example, brand new equipment may be stored outside
for a considerable period of time from the manufacturing plant or the dealer, and may hold as
inventory until sold. In these instances, it is best recommended to provide some additional
corrosion protection. An inexpensive application of PRP can be applied to prevent corrosion and
thereby preserve the quality of the hard chrome plated piston rod.
Protection of the cylinder rod is important. If the rod was to be damaged or pitted it will damage
the wiper seal of the cylinder housing and create a leak in the system. Taking the necessary
precautions of preventative maintenance will ensure a longer life of the machine.
Protection of new equipment:
The steps summarized below should be followed when protecting chrome plate shafting on new
equipment.
•
Position the equipment as it will be stored, and identify all the exposed portions of the
chrome plated shafts.
•
Clean dirt and dust from the exposed portions of the shafts using a dry cloth.
•
Apply a thin coating of PRP mixture to the exposed surfaces of the chrome shaft.
Depending on the type of PRP used, it can be applied directly to the shaft either by spray
or rubbed on to the surface.
•
Inspect the shaft surface after 5 month and apply additional corrosion protection PRP.
•
If the equipment is to be moved and then stored again for an extended period of time, the
steps above should be repeated for all shafts that were stroked or cycled during the move.
Protection of older equipment:
•
Occasionally it might be necessary to store some equipment that has seen some service.
The procedure described above can be useful, but more careful cleaning of the shaft
surface should be taken into consideration. If there are any damaged areas to the shaft
further attention will be required.
•
Under no circumstances should sandpaper or other abrasive materials be used to clean
the shaft, however, plastic or copper wool may be used.
•
After the surface is clean, it should be inspected for damages to the chrome plate. If
damage is detected, more frequent application of PRP will be necessary to prevent
corrosion during storage.