Subject to change · Filter and recirculating pump unit UMPC 045 Light Line· 0119 · EN
Page 23
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10.4 Monitoring the oil cleanliness when filling machines and systems
1. Connect the filter unit to a power source.
2. Insert the suction lance / suction pipe into the tank of the machine or system (e.g. hydraulic tank).
3. Place the discharge pipe into the machine or system container (e.g. hydraulic tank).
Fig. 12: Lever pumping / filtering
5. Set the three-way valve to the vertical position
Pumping
Filtering
NOTE
›
At the beginning of the filtration, filling of the filter unit may take several seconds.
4. Move the lever to the "Filtering" position.
Particle Counting "Filling" (AFTER filter)
Particle Counting "Cleaning" (BEFORE filter)
Fig. 13: Three-way valve
6. Switch on the filter unit at the on/off switch (circuit breaker) and let it operate for approx. 5 min. (Initialization
of the particle counter and ventilation of the system).
7. Check the oil flow for a possible insufficient insertion depth of the suction pipe in the oil tank.
8. Monitor the filling level at the machine or system and switch off the filter unit at the circuit breaker after having reached the
desired fill level.
9. After completion of the operation, pull the suction lance / suction tube out of the container / barrel and suck air for max. 30
seconds. Thus, the residual oil from the filter housing and the lines above the oil level is fed back into the same container via the
discharge pipe.
10. Fix the suction lance / suction pipe and the discharge pipe to the corresponding brackets at the filter unit.
NOTE
›
No particle counting is possible with the "pumping" lever position.
›
Make absolutely sure that the unit is completely vented. Air bubbles can falsify the measurement results!
›
Make absolutely sure that the specified media temperatures of max. 80 ° C are observed.
›
Incorrect viscosities can falsify the measurement results!
›
An exact determination of the cleanliness class is possible in a viscosity range of 15 mm
2
/ s to 250 mm
2
/ s.
