Hydraulic Fluids - Palfinger PK 48000 Betriebsanleitung

6.1-5
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Next remove any excess grease.
Surplus grease is a source of accidents caused by slipping and
also contaminates the environment.
As most of the lubrication points on the crane involve lubrication loss (grease is
consumed or enters the environment), we recommend the use of biodegradable
greases.
Care of extendable cylinder piston rods:
If the extendable arms are never completely retracted to the transport
position the extendable cylinder piston rods may suffer oxidation. The
extendable cylinders (extendable arms) must therefore be completely
retracted once a month.
6.1-5

Hydraulic fluids

For the selection of hydraulic fluids you should get in touch with your service partner.
HLP / ISO hydraulic fluids wth the following properties should be used:
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favourable viscosity/temperature behaviour.
•
good thermal and mechanical loading properties.
•
extensive resistance to ageing.
•
good corrosion protection.
•
adequate cold flowability.
•
adequate lubrication effect in the marginal lubrication area.
•
good air release properties.
•
excellent foam behaviour.
•
neutrality in contact with seals and hydraulic hoses..
Maintenance