Servicing
Operating Instructions
6-2
PPH25RR*** / 000
6.1.1
Blowing out the water
6.1.2
Oil change
6.1.2.1
Oil quality
TYROLIT Hydrostress AG recommends:
Hydraulic oil:
HLP / ISO VG 46
Other hydraulic oils can be used if they comply with the following specifica-
tions:
Information
In order to prevent damage from frost-cracks, if there is a risk of frost or
prior to extended breaks in work the cooling water must be blown out of
the system. Use the TYROLIT purge pump No. 10982667.
Pour point:
-42° C
Viscosity index:
170
Viscosity class:
HLP VG 46 or ISO 3498 HV 46
Wear-protection according to DIN 51524 Part 3 (HV46)
Information
Different types of hydraulic oil should not be mixed together, otherwise
the oil will age prematurely.
