SB-6-159-H Page 5
Ind.
Ref Replacement
Parts
No. Part No.
Description
Req.
1 ---
#10-32 x 9/16 Fillister
6
Head 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
MAINTENANCE - FLOW-ThRU
REgULATOR
Do not submerge regulator or
components in solvent or use
solvent to clean regulator parts.
Damage may occur to regulator
and components. Use a cloth
dampened in warm, soapy water
to clean exterior of regulator.
Note
This unit may be serviced with-
out removing the unit from the
compressed air line.
1. Frequency of servicing depends largely
on the condition of the compressed air
system and the degree of contamina-
tion in the system.
2. Before attempting to service this
product in-line, depressurize both
the upstream and downstream sides
of regulator.
3. Remove the bottom plug, valve spring
and valve assembly. Inspect all seals
and components for damage and re-
place as required. Clean seals and
components with mild detergent and
water. Use a clean, dry cloth to wipe
any contamination from valve seal
inside the body. Lubricate the valve
stem and lower valve o-ring seal with
a light coat of MAGNALUBE-G or simi-
lar lubricant. Reassemble. Bottom plug
torque should not exceed 25 in./lbs.
(2.8 N-m).
4. To replace main spring or diaphragm,
turn adjusting knob counterclockwise
to remove all spring force, then re-
move bonnet. Remove the adjusting
screw assembly, main spring, slip ring
and diaphragm assembly. Inspect the
diaphragm and the relief seat for dam-
age and contamination. Replace dia-
phragm assembly if necessary. Clean
the relief seat with a soft dry cloth.
Reassemble in reverse order making
sure the slip ring is properly posi-
tioned on top of the diaphragm.
Bonnet torque should not exceed
120 in./lbs. (13.6 N-m).
5. Before returning unit to service, en-
sure that all seals have been properly
reinstalled or replaced and compo-
nents requiring torque values have
been properly set.
6. If regulated pressure begins to creep
(an uncontrolled rise in regulated
pressure), it will most likely be caused
by contamination on the valve seat.
7. If the unit leaks from the vent holes in
the bonnet, it may be caused by con-
tamination, deterioration or damage
to the valve seat or diaphragm relief
seat. Replace any damaged or worn
components.
*KK-5045
Diaphragm
Repair Kit
Figure 7 - hAR-508 Regulator
Body
Cover
Figure 6
hAR-507
7
14
13
1
2
3
4
9
10
11
12
5
8
A
6
MAINTENANCE - AIR PRESSURE
REgULATOR hAR-507
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, bonnet, 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. Insert stem of valve
through hole in regulator body. Install
spring and o-rings. Screw bottom
plug into body.
Note
Erratic operation or loss of
regulation is usually due to dirt
in the valve area and cleaning
is necessary. If cleaning does
not correct the problem, replace
the items included in Repair Kit
KK-4977. If unit leaks air at A ,
install Repair Kit KK-4977.
Knob
Panel
Nut
Bonnet
*Thrust
Washer
*Adjusting
Screw
Assembly
*Main
Spring
*Slip
Ring
*Diaphragm
Assembly
*Valve
Assembly
*Valve
Spring
*Bottom
Plug
O-Ring
Bottom
Plug
Body
Assembly
