DeVilbiss HAR-508 Service Bulletin

IMPORTANT: Read and follow all Instructions and
Safety Precautions before installing, operating or
maintaining this equipment. Keep this manual for
future reference.
Risk of explosion or fire.
Improper use can cause personal injury
• This product is designed and intended
for use in industrial compressed air
systems only. Do not use for liquids or
gasses other than air.
• Do not use where pressure or tem-
perature can exceed rated operating
conditions (see specifications).
• Regulated outlet pressure must nev-
er be set higher than the maximum
operating pressure of the downstream
air tool or equipment. An outlet pres-
sure gauge should always be used.
Certain compressor oils, cleaning
agents and solvents may attack the
plastic and rubber components used
in the construction of this product.
This product should not be used in
conjunction with or in the vicinity of
these materials. Read and follow ma-
terial labels carefully. Please consult
DeVilbiss if in doubt.
SPECIFICATIONS
Type
Inlet Size
Outlet Size (unregulated)
Regulated Ports (2)
Maximum Inlet Pressure
Maximum Temperature
Flow Specifications Regulated Output
10 CFM @ 45 PSI with 100 PSI inlet
28 CFM @ 60 PSI with 100 PSI inlet
HAR-508 Regulator
Diaphragm, Relieving
1/2" NPT(F)
1/2" NPT(F)
1/4" NPT(F)
300 PSIG
175° F (79.4° C)
Thrust
Washer
Adjusting
Screw As-
sembly
Main
Spring
*Slip
Ring
*Diaphragm
Assembly
Body
Cover
*Bottom
Plug
O-Ring
* KK-5045 Diaphragm Repair Kit
DESCRIPTION
This unit is designed to regulate and maintain a
nearly constant outlet pressure through the front
and rear 1/4" NPT ports while passing unregulated
air through the 1/2" NPT ports. The front 1/4" port
should be fitted with a gauge (such as a DeVilbiss
GA-316, sold separately) to verify pressure at the
rear 1/4" port.
SERVICE BULLETIN
SB-6-133-A
Replaces SB-6-133
Knob
Panel Nut
Bonnet
Maximum Torque
120 in./lbs.
Body
Assembly
*Valve
Assembly
*Valve
Spring
Bottom Plug
Max. Torque
25 in./lbs.