Regal 42SC Owner's Manual page 305

Volvo IPS- Draining/Bleeding The Pre-Filter
There is a diesel pre-fi lter located in the bilge. It affords
additional protection to catch debris such as dirt and water
in the fuel. There is a fuel system shut off valve located at
the inlet side of the pre-fi lter.
To bleed the fi lter do the following:
1. Turn off the fuel valve at the inlet side of the fi lter.
2. Use a suitable container under the fuel fi lter.
2. Open the vent screw. Drain off any water by opening
the plug at the bottom of the fi lter.
3. Once drained, close the bottom plug.
4. Unscrew the hand pump. It will pop up.
5. Prime the hand pump. Air bubbles and fuel will purge
out of the vent plug. Once the air is completely out of the
systemclose the vent plug. Pump the hand pump a few
more times and push it down. Screw it tight in a clockwise
direction.
Vent
Plug
Hand Pump
60
NOTICE
TO PREVENT POSSIBLE DAMAGE TO
THE ENVIRONMENT ALWAYS DISPOSE
OF USED DIESEL IN A FRIENDLY
MANNER.
Chapter 8