Maintenance and Service
Hydraulic system
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Adding hydraulic fluid:
– Open the protective cover in the rear bunker wall.
– For refilling hydraulic fluid, unscrew the black filling cap (bleeding head) (2) from
the lid of the fluid tank.
– When you open the filling lid for the hydraulic fluid, then it is possible that you hear
a 'hissing' sound. This sound is normal.
The filling lid (ROPA item no. 270070000) (2) is both a filler and vent filter. It main-
tains the required air balance as the oil level varies (e.g. due to the oil tempera-
ture).
Replace it as soon as it is dirty, but no later than every 2 years.
ADVICE
When using a vacuum pump, do not set a vacuum on more than 0.2 bar.
7.3.1.1 Hydraulic fluid change
Drain valve hydraulic fluid
ADVICE
The entire machine contains more than twice as much hydraulic fluid as can be
drained during a hydraulic fluid change. For this reason it is essential to adhere strictly
to the prescribed intervals for changing the hydraulic fluid.
The hydraulic fluid must be changed annually – best shortly before start of the season.
For this purpose, provide a barrel of sufficient size. Use the fluid drain hose provided
to change the hydraulic fluid. Screw the fluid drain hose onto the valve in the bottom of
the hydraulic fluid tank. The valve opens and the old oil drains.
Prescribed oil variants: Hydraulic oil HVLP 46 (containing zinc)
ISO-VG 46 as per DIN 51524 part 3
Filling volume: approx. 220 litres
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