Hydraulic Oil - Peri VARIOKIT VBC Assembly Instructions Manual

A5 Maintenance

Hydraulic oil

Warning
Hydraulic oil can cause health
problems!
⇒ Instructions for the safe handling of
hydraulic oil are included in the safe-
ty data sheet of the oil selected for
use.
⇒ Avoid contact with skin and eyes as
well as contact with the structure.
For information on cleaning and cor-
rect disposal, see the safety data
sheet of the hydraulic oil selected for
use.
Caution
Hydraulic unit and hydraulic oil are hot
after operation!
This could result in burns and scalding!
⇒ Allow the hydraulic unit to cool down
before maintenance! The cooling
down time depends on the ambient
conditions and has to be adapted
accordingly.
VBC Balanced Cantilever Hydraulic System – Hydraulic System and Standard Cycle
Assembly Instructions
Check oil level
Liquid volume too low
■
the operating temperature increases,
■
air inclusions occur,
■
the hydraulic cylinder may extend
jerkily.
Therefore:
■
Keep the oil level display device
clean.
■
Monitor the oil level continuously.
■
Immediately top up any missing hy-
draulic oil.
■
Observe pendulum volume, do not
overfill. Only top up the oil when all
cylinders have been retracted.
■
Identify causes of excessive oil
consumption.
The oil level can vary depending on the
type, quantity and size of the
consumer.
Checking oil temperature
Note
The operating temperature of the hy-
draulic oil increases with an increase in
the outside temperature. Excessive oil
temperature can cause damage to the
hydraulic system.
⇒ If the oil temperature exceeds 70 °C,
switch off the hydraulic unit.
⇒ Determine the cause of overheating
(e.g. no pressureless flow, outside
temperature is too high ...).
Recommended operating temperature
of the hydraulic oil: see information pro-
vided by the oil manufacturer.
Changing hydraulic oil
Drain hydraulic oil and clean oil tank:
1. Completely retract the piston rods.
2. Clean the hydraulic tank, especially in
the area of the filling piece.
3. Switch off the unit and drain the hy-
draulic oil when warm.
4. Remove the oil drain screw.
5. Completely drain the tank.
6. Clean the hydraulic tank if necessary.
7 . Clean the return flow filter or replace
if necessary.
8. Check the ventilation filter in the fill-
ing piece for signs of dirt.
9. For extremely dirty equipment or
when changing the hydraulic oil,
rinse with separate oil.
10. Drain flushing oil from the hydraulic
tank and clean once again if
necessary.
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