10
O R I G I N A L I N S T R U C T I O N S
GB
When the hydraulic system is not used, its pump should be kept with the opened drain valve. After a period of heavy use we
recommend that you make an oil change, which will allow to prolong the service life of the device. In order to change the oil, you
should open the drain valve, then open the vent valve and discard old oil. Make sure that any dirt would not get inside the system.
Fill out with the appropriate type of hydraulic oil up to the level as it is described under “
Checking the oil level” paragraph.
The expander should be stored in its original package. After completing the work, the components should be carefully cleaned
with a clean cotton cloth. Special attention should be paid to carefully secure the hydraulic system connectors, by setting up
protective screens.
It is recommended that you store the set at temperatures above 0
O
C, which will ensure the appropriate parameters for the
hydraulic oil.
FAILURE DETECTION
Failure
Possible cause
Solution
Pump is not running.
Dirt in the valve seals
Pass the device to a specialized service
Worn seals
The pump does not produce a pressure
Aeration of the hydraulic system
Carry out the procedure of deaeration
The pump is not stable under load
The pump does not lower completely
The pump does not produce a pressure
Inappropiate oil level in the pump tank
Carry out the procedure for checking the oil level.
Содержание VOREL 80320
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