DeVilbiss HAF-18 Service Information

HAF-18 AUTOMATIC DRAIN

SERVICE INFORMATION

8

SERVICE BULLETIN

SB-6-149-B

Replaces SB-6-149-A

Note

Do

not wash plastic bowl with automatic drain
installed. 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 automatic drain (replacement
parts are not available - complete drain replacement
will be necessary).

Remove automatic drain from plastic bowl by

1.

loosening plastic retaining nut. Keep retaining
nut and O-ring for reassembly later.

Using a knife edge, carefully pry apart the float

2.

cover and bottom piece (See Figure 1).

4.

Using a knife edge, carefully pry off float cap
(See Figure 3).

Pry apart with knife edge.

Cap

Figure 3

5.

Clean inside of float. Remove all traces of water
or dirt.

6.

Insure rubber seal is in place in the center of the
float stem (See Figure 4). If the seal comes out,
press it back in place in the recess of the stem.

(Inside view of float)

Rubber

Seal

Float Stem

Pry apart with knife edge.

Bottom Piece
Float
Cover

Slide float off float guide (See Figure 2).

3.

Float

Figure 1

Float Guide

Figure 2

Figure 4

7.

Replace the float cap (again, be certain the
rubber seal, Figure 4, 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 5 and instructions.

Page 2 SB-6-149-B

Figure 5 Float Guide

Be sure to reassemble all parts as shown into the float
guide. Snap float guide cover into bottom piece.

Float
Guide
Cover

Small
Spring

Actuator
Pin

Flat view of
Spring Disc

Large
Spring

Bottom
Piece

WARRANTY

This product is covered by DeVilbiss' 1 Year Limited Warranty.
See SB-1-000 which is available upon request.

DeVILBISS WORLDWIDE SALES AND SERVICE LISTING - www.devilbiss.com

INDUSTRIAL FINISHING
DeVilbiss has authorized distributors throughout the world. FOR TECHNICAL ASSISTANCE OR THE DISTRIBUTOR
NEAREST YOU, CALL TOLL FREE 1-800-338-4448 (U.S.A. & CANADA ONLY). FOR LOCAL CALLS, SEE LISTING BELOW.

U.S./Canada Sales & Customer Service Office Address Telephone No.
GLENDALE HEIGHTS, IL 60139 195 Internationale Blvd. [phone]

Toll Free Fax No.1-877-790-6965

AUTOMOTIVE REFINISHING

DeVilbiss has authorized distributors throughout the world. For equipment, parts and service, check the Yellow Pages under
"Automobile Body Shop Equipment and Supplies." FOR TECHNICAL ASSISTANCE, CALL TOLL FREE 1-800-445-3988

(U.S.A. ONLY). FOR LOCAL CALLS, SEE LISTING BELOW.

U.S. Customer Service Office Address Telephone No.
Maumee, OH 43537 1724 Indian Wood Circle General Inquiry [phone]

Toll Free Fax No. 1-800-445-6643

7/00 ©Copyright 2000, DeVilbiss Printed in U.S.A.