Filling And Purging - Uflex UC 69-I Installation And Maintenance Manual

3.5 Filling and purging

After the first installation and after maintenance operations it is necessary to fill the system with hydraulic
oil. This operation must avoid the air in the system, to ensure the good system operation. The hydraulic
system must be filled from the highest point of the system, which means from the upper steering station.
CAUTION
To avoid air bubbles in the oil, it is necessary to fill the tank slowly.
WARNING
The filling and bleeding operations must be carried out at least by two operators
NOTICE
The filling and purging operations can be facilitated by using the automatic purging equipment BUBBLE
â
BLUSTER (supplied separately).
DANGER
Use UFLEX oil or other compatible oils.
Hydraulic oil OIL15 has been specifically formulated for UFLEX to ensure high quality performance level of
UFLEX products throughout time.
The special mix of anti-wear and stabilizing components of OIL15 allow ensuring great results as far as the
product duration and performances are concerned in several environmental conditions. UFLEX is not to be
held responsible for any damages or performance deterioration if oils different from OIL15 are used.
DANGER
Do NOT use ATF Dexron II transmission oils or brake oils which could cause the steering system seizing.
Oils which are compatible with OIL15 UFLEX are:
- Shell Tellus T15 and Shell Tellus T22
- Mobil DTE 11M
NOTICE
UFLEX will not be able to ensure the compatibility of the above mentioned oils with OIL15 if the oil
manufacturers vary their formulation. Under no circumstances UFLEX is to be held responsible for any
damages or performance deterioration.
In the days after the filling, check the oil level; if necessary top off the system.
At the beginning the oil level can lower, as small amounts of air can be released in a homogeneous way.
According to the types of installation, it is necessary to carry out the different bleeding procedures, as it
follows.
page 16
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HYDRAULIC CYLINDERS FOR INBOARD ENGINES
Installation and Maintenance Manual