SB-6-176 Page 3
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 wa-
ter 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
Figure 3 – HAR-508 Regulator
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
Figure 2 – HAF-517
1 (not shown)
5
6
7
1A
3
2
4
or similar 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.
Knob
*Adjusting
Screw
Assembly
*KK-5045
Diaphragm
Repair Kit
Body
Cover
Panel
Nut
Bonnet
*Thrust
Washer
*Main
Spring
*Slip
Ring
*Diaphragm
Assembly
*Valve
Assembly
*Valve
Spring
*Bottom
Plug
O-Ring
Bottom
Plug
Body
Assembly
