HF scientific Stilling Chamber - Manual (Page 4)

5. Make sure the red vent cap is tightend all the way to the stop
position for proper operation. Use hands only to tighten.
1. Turn the vent body clockwise to the closed position, isolating the
vent from the system (see figure 2).
2. Remove the float assembly by unscrewing the top of the body
and lifting the black cover assembly up (see figure 3).
3. Carefully clean the seat area of any dirt or debris.
4. Carefully clean any dirt or debris from inside the vent chamber.
CLEANING INSTRUCTIONS
Figure 3
BLACK COVER
ASSEMBLY
O-RING
SEAT AREA-
MAKE SURE
AREA IS FREE
OF DIRT AND
DEBRIS
RED VENT CAP
WITH LEAKAGE
GUARD.
VENT LEVER
SPRING
FLOAT
CONSTRUCTED
FOR EASY IN
LINE SERVICE.
SHUTOFF IS
BUILT-IN NO
DRAIN DOWN
REQUIRED.