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DeVilbiss DAD-500 - HAR-507 Air Regulator Maintenance; Regulator Cleaning Procedure; Disassembly and Inspection; Troubleshooting Regulator Issues

DeVilbiss DAD-500
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Page 4 SB-6-156-O
DESCRIPTION
The HAF-505, 55 CFM filter is designed to remove oil, dirt, pipe
scale and liquid aerosol. It includes a 0.01 micron filter element
and automatic mechanical drain.
PARTS LIST HAF-505
Ind.
Ref Replacement Description Parts
No. Part No. Req.
1 HAF-404 Filter Change Indicator 1
(not shown)
1A --- Cover 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
*8 --- 1/2 x 3/8 Vinyl Tubing 6' 1
9 HAF-11 Manual Drain 1
(available separately)
Figure 3 HAF-505 55 CFM Oil Coalescing Filter
9 (Optional)
5
6
7
4
3
2
1A
1 (not shown)
HAR-507 Regulator
DESCRIPTION
This regulator has been designed to receive
air at main line pressure and to deliver it at
a desired lower regulated pressure.
See WARNINGS on Page 2.
REGULATOR MAINTENANCE
1. Occasionally remove bottom plug (7)
and clean valve seat (11) and body.
Clean parts with denatured alcohol,
wipe off seat and blow out body with
compressed air.
2. To disassemble regulator, remove
screws, bonnett, spring and spring
button. Diaphragm assembly can now
be removed.
3. Check all o-rings for signs of damage.
Replace if necessary.
4. Reassemble parts. Center stem of valve
in hole of regulator body. Screw bot-
tom plug into body.
NOTE
Erratic operation or loss of regula-
tion is usually due to dirt in the
valve area and cleaning is neces-
sary. If cleaning does not correct
the problem, replace the items in-
cluded in Repair Kit KK-4977.
If unit leaks air at A , install Repair
Kit KK-4977.
Ind.
Ref
Replacement
Parts
No.
Part No.
Description Req.
1 --- #10-32 x 9/16 Fillister 6
Hd. Screw
2 HAR-14 Cover 1
3 --- Spring Button 1
4 --- Diaphragm Spring 1
5 --- Body 1
6 --- Pipe Plug 1/4" NPT(M) 1
7 --- Bottom Plug 1
8 KK-4977 Repair Kit (includes 1
Items 9 thru 14)
9 --- Diaphragm Assembly 1
10 --- O-Ring 1
11 --- Valve 1
12 --- O-Ring 1
13 --- Spring 1
14 --- O-Ring 1
PARTS LIST - Model HAR-507 Regulator
Assembly
Figure 4
HAR-507 Air Regulator
7
14
13
1
2
3
4
9
10
11
12
5
8
A
6
*8 Used with automatic
drain only

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