XR21S59 CHU 173
1/2018
113813003
Hooklift Multilift XR21S59 CHU
Service Manual
!
BE CAREFUL!
Hydraulic oils and mineral and more environment
friendly oils can cause skin irritation and allergic
symptoms. Hands and other exposed skin must be
protected well. Wash your hands carefully after the
oil change.
Changing the hydraulic oil
1. Check that all piston rods of the cylinders are in retracted position.
2. Completely empty the oil tank via the drain plug.
3. Change the return lter.
4. Fill the tank with new oil via the return lter.
5. Check the air lter.
Hydraulic oil specications
Quality classes: ISO 6743-4 type HV or
DIN 51524 part 3 type HVLP or
Swedish SMR standard for hydraulic oil (SHS).
Degree of cleanliness: 16/13 (ISO 4406).
Viscosity: Ambient temperature °F (°C) ISO-VG
-13 (-25) ... 50 (+10) 22
5 (-15) ... 68 (+20) 32
23 (-5) ... 86 (+30) 46
59 (+15) ... 122 (+50) 68
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