DeVilbiss DAD-503, Service Bulletin

Page: 4 / 8

Page 4 SB-6-159-H
MAINTENANCE - hAF-517
ChARCOAL FILTER
1. Before performing maintenance on
unit, close any main shut-off valve
located upstream of filter. Bleed off
residual air in unit.
2. To open filter, press button located
on clamp ring and rotate ring either
clockwise or counterclockwise while
pulling down on ring. The metal bowl
guard and plastic bowl can then be
removed from the filter body.
3. Remove the filter element by loosen-
ing counterclockwise. Clean or replace
the filter element. Replace the char-
coal element when it no longer re-
moves oil vapor odors or when the
red indicator is visible.
4. Inspect o-ring for damage. Replace if
necessary.
5. Inspect plastic bowl for signs of dam-
age such as cracks, crazing or deterio-
ration. Replace if necessary.
hAF-517 Parts List
Replace- Ind.
Ref. ment Parts
No. Part No. Description Req.
1 HAF-404 Filter Change Ind. 1
(Not shown)
1A --- Body 1
2 --- O-Ring 1
3 HAF-36 Filter Element and 1
O-Ring Kit
4 HAF-11 Manual Drain 1
5 HAF-8 Plastic Bowl 1
6 HAF-19 Metal Bowl Guard 1
7 HAF-409 Clamp Ring 1
MAINTENANCE - COALESCINg FILTER
hAF-505
1. Before performing maintenance on unit, close any main shut-off valve
located upstream of filter. Bleed off residual air in unit.
2. To open filter, press button located on clamp ring and rotate ring either
clockwise or counterclockwise while pulling down on ring. The metal bowl
guard and plastic bowl can then be removed from the filter body.
3. Remove the filter element by loosening counterclockwise. Clean or replace
the filter element. Frequency of element replacement will depend upon air
quality, air usage and condition of the air piping. It is recommended to
check the element change indicator daily and replace element when
indicator turns red.
4. Inspect o-ring for damage. Replace if necessary.
5. Inspect plastic bowl for signs of damage such as cracks, crazing or deteriora-
tion. Replace if necessary.
Note
6. The filter change indicator only operates when air is flowing. It will always be
green when there is no air flow.
Figure 4 - hAF-505
hAF-505 Parts List
Ind.
Ref. Replacement Parts
No. Part No. Description Req.
1
HAF-404 Filter Change Ind. 1
(Not shown)
1A Body 1
2 O-Ring 1
3 HAF-28 Filter and O-Ring Kit 1
4 HAF-18 Automatic Drain 1
5 HAF-8 Plastic Bowl 1
6 HAF-19 Metal Bowl Guard 1
7 HAF-409 Clamp Ring 1
Figure 5 - hAF-517
1 (not shown)
5
6
7
1A
3
2
4
1A
1
(Indicator Not shown)
2
3
4
7
6
5