Changing the Coalescing Filter
If the system has just been operated, shut off the engine and wait at
least thirty seconds for the air pressure to vent before working on the
system. Also allow sufficient time for the oil to cool.
In some applications, you may have to remove the tank from the
frame and lower the back end to access the back of the tank.
1. Clean the front and back of the tank to prevent contamination.
2. Remove the drain plug and drain the oil into a container large
enough to hold at least 5 litres (1.32 U.S. gal.) for the VR70 and
9 litres (2.38 U.S. gal.) for the VR150.
3. Install and tighten the plug.
4. If you are replacing the oil filter, follow filter replacement
procedures.
5. Disconnect the air outlet line, 1/4 inch and 5/16 inch lines from
the back of the tank.
6. Remove the bolts holding the discharge cap from the back of the
tank and remove the cap and small spring.
7. Remove the coalescing filter with wave spring attached (or on
the VR150, the large coil spring and spring plate) from inside the
tank.
On older VR70 systems, remove and discard the large
coil spring.
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