# VHG200020614
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reliability. The required oil cleanliness: class 9 (recommended 8) according to
NAS 1638 standard.
After filling with new oil, bleed the hydraulic power pack. To do this, start the
pump for short cycles (2 s) until the unit cylinder is maximally extended. At
first, the system should be off-load. Gradually increase load until the
maximum operating pressure is achieved (oil flows through the overflow
valve) and the pump operation is smooth and quiet. In the case of loud and
irregular operation of the hydraulic power pack and no force, repeat the
bleeding. Failure to bleed will make it impossible to achieve the operating
pressure, and in extreme case, it may lead to the pump seizure.
During the station operation, as part of the daily maintenance it is required to
check the system for tightness and repair any oil leaks immediately and
check oil level in the tank.
In case of a failure, switch off power supply and contact the service
personnel. Warranty repairs can only be carried out by the manufacturer
service personnel or its authorised representatives.
Protect the station against adverse weather conditions, corrosion, impurities
and mechanical damage. When the station gets wet, dry it. When the station
gets dirty, clean it (with a dry cloth). When the station is not operated for a
long time, provide clean and dry storage conditions. Correct maintenance and
operation considerably extends the station service life.
After one year or when a number of the hydraulic power pack operating cycles
achieves the number set by the manufacturer from the first start of the station, the
message informing about the necessity of carrying out the technical inspection (Fig.
16) will be displayed for 10 seconds after each following start of the station. When the
information window disappears, work on the station can be continued.
Fig. 16
Note:
The station can only be operated at temperatures specified by the manufacturer
(according to item 2). Operation at other temperatures may, in extreme cases, result in
damage to the hydraulic power pack.
