Page 6 SB-6-159-H
Note
The automatic drain includes a
float. If water gets into the float,
the automatic drain may not
function properly. Under normal
conditions, water will not enter
the float. However, water can get
in the float if the filter bowl is
washed with the drain installed
or if air line contamination causes
the drain mechanism to stick.
You can confirm the automatic drain is
not operating if the water level in the
plastic bowl is higher than the top of
the automatic drain.
To remove water from the float, follow
these instructions. Be careful not to lose
or damage any internal parts of the au-
tomatic drain (replacement parts are not
available - complete drain replacement
will be necessary).
1.
Remove automatic drain from plastic
bowl by loosening plastic retaining
nut. Keep retaining nut and o-ring
for reassembly later.
2.
Using a knife edge, carefully pry apart
the float cover and bottom piece
(See Figure 8).
Pry apart with knife edge.
3. Slide flat off flat guide (See Figure
(9).
4. Using a knife edge, carefully pry off
flat cap (See Figure (10).
Pry apart with knife edge.
5.
Clean inside of flat. Remove all traces
of water or dirt.
6. Insure rubber seal is in place in the
center of the flat stem (See Figure 11).
If the seal comes out, press it back in
place in the recess of the stem.
7.
Replace the float cap (again, be certain
the rubber seal, Figure 11, is in place).
8. Slide float over float guide.
9. Snap float cover onto bottom piece.
10. Install automatic drain into bowl. Be
sure o-ring is in place (between the
drain and bowl). Tighten the plastic
retaining nut firmly by hand.
11. Monitor the automatic drain for
proper operation. If it fails to operate
properly, replace with a new unit.
Note
If the Float Guide inadvertently
came apart, refer to Figure 12
and instructions.
hAF-18 Automatic Drain
(Inside view of float)
Cap
Figure 10
Figure 8
Figure 11
Rubber
Seal
Float
Stem
Note - Float guide
Be sure to reassemble all parts as
shown into the float guide. Snap
float guide cover into bottom piece.
Small
Spring
Float
Guide
Cover
Bottom
Piece
Large
Spring
Actuator
Pin
Flat view of
Spring Disc
Figure 12
Float Cover
Bottom Piece
Float Guide
Float
Figure 9
