Palfinger PK 23002, Operator'S Manual

Page: 90 / 94

6.1-7 Maintenance
Owing to different basic products different service temperatures apply:
•
Fluids based on mineral oil: approx. -30 to +80°C
•
Biodegradable fluids: Fully synthetic ester: approx. -30 to +80°C
Native ester: approx. -20 to +80°C
Fluids based on rape oil: approx. -20 to.+65°C
The ideal operating temperature of the hydraulic fluid is between 30°C and 60°C.
If this temperature is frequently exceeded in your crane work, please consult your service partner for
the purpose of having a hydraulic fluid cooler or a larger hydraulic fluid tank fitted.
Biodegradable fluids are more environment-friendly than conventional hydraulic fluids.
However, these fluids must still not be discharged into the environment.
The hydraulic fluids stated in our recommendation can be mixed with each other, but must not be
mixed with other fluids.
Note the following disadvantages:
•
Reduction in service life,
•
No biodegradablility for mineral oil mixtures,
•
Restrictions in permissible operating temperature for mixtures with rape oil or native ester.
6.1-7 Oil change / Oil maintenance
If annual oil maintenance is carried out the life of the oil used can be considerably increased. Apart
from saving costs this also means a considerable reduction in the amount of old oil to be disposed of
and therefore a reduction in the burden on the environment.
Oil maintenance means:
Filtration, dewatering and testing of the oil purity, which you have carried out in an authorised
workshop.