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Preventative
Maintenance
Oil Filter
When a test is complete, it should take several minutes to drain the test cell
of oil. If it takes more than ve minutes to completely drain the cell, the high-
pressure lter may be clogged and need to be cleaned and replaced.
1. Locate the high-pressure lter inside the cabinet on the right-hand
side.
2. Before removing the lter, observe the direction arrow on the side.
This will be important later when re-installing the lter.
3. Carefully disconnect the pipe from the hex tting.
4. Remove the lter pieces from the hex tting.
5. Clean the pieces of the lter with compressed air. This will blow out
any dirt and debris.
6. Carefully place the lter pieces back inside the tting in the same
order in which they were removed.
7. Reconnect the tting to the plumbing.
Make sure the directional arrow is pointing the same direction
as before the tting was removed. Installing the lter backwards
could damage the equipment.
If the high-pressure lter is dirty, it could mean that the oil in the reservoir is
also dirty. Observe the oil through the sight glass on the front of the reservoir.
If the oil is cloudy, it should be replaced.
1. Make sure all pressure is released from the system and that the cell is
open.
2. Make sure the “Fill Cell” valve is set to “Vent”.
3. Remove the reservoir cap.
4. On the bottom of the reservoir is a drain valve. Place a container
underneath the drain and open the valve.
5. When the reservoir is empty, close the drain valve.
6. Pour approximately 4 liters of mineral oil into the reservoir. When full,
the oil level in the sight glass should be about 1" from the top.
7. Replace the reservoir cap. Make sure the seal is tight.