Maintenance and Service
Hydraulic system
Chip catcher of leak oil line open circulation
A chip catcher is installed under the hydraulic oil tank, in the return flow (3) of the leak
oil of the open circulation pumps. Here, a small quantity of leak oil flows back into the
tank through the protective sieve located in the hydraulic oil tank. While the diesel
engine is switched off, any metal parts, e.g. chips would sink from the protective sieve
into the sealing plug.
After draining the hydraulic oil, open the sealing plug (2) at the bottom of the chip
catcher. Collect this small quantity of hydraulic oil remaining here in a suitable clean
container and check it for metal parts. Should you notice any metal parts, please con-
tact your Ropa service partner.
(1) Hydraulic oil tank drain valve
(2) Chip catcher plug
(3) Leak oil return flow
Filling the hydraulic oil tank
We recommend filling the hydraulic oil through the factory-installed filling valve (4)
with a suitable oil pump. Using this method the fresh oil passes through the suction
return filter before entering hydraulic oil tank. This increases the purity of the oil in the
hydraulic system.
A suitable filling hose with the correct connector for the filling valve (4) is available with
ROPA item no. 632040900. Never use the same hose which you use to drain waste
oil.
Prescribed oil types: Hydraulic oil HVLP 46 (containing zinc)
ISO-VG 46 as per DIN 51524 part 3
Filling volume: approx. 190 litres
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