Vaderstad RAPID RDA 400 S Instructions Manual page 14

Instructions and settings
2.4.3 Connecting hoses to the hydraulic fan
Figure 2.7
Connect the two thin hoses to a two-way hydraulic connector designed for continuous operation
of a hydraulic motor. If available, use a priority connector. The thicker hose of these two hoses is
the pressure hose to the hydraulic motor, while the thinner is the oil leakage hose. The thickest of
the hoses, the 3/4" return hose, should be connected to a separate no-pressure return entry. Lock
the female quick connector on the return entry. See "Figure 2.8".
NOTE! Use a rag and make sure all couplings and connectors are dry! This is a good way to avoid
disruptions in the hydraulic system.
Also read section "2.20 Adjusting the air-flow" on page 38 prior to starting the fan.
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Figure 2.8
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Ver.3 29.06.2007