08R Series Regulators
1R121
Service
To service regulator use the following procedure:
!
Caution: SHUT OFF AIR SUPPLY and exhaust the
primary and secondary pressure before disassembling
regulator unit.
(The regulator may be serviced without
removing it from the air line.)
1.
To service piston or control springs, turn the adjusting handle
counterclockwise until compression is released from
pressure control spring.
a. To remove bonnet, remove retaining spring by lifting out
and pulling on the exposed loop.
b. Clean and carefully inspect parts for wear and / or
damage. If replacement is necessary, use parts from the
service kits.
c. Lubricate the piston’s o-ring (Item 17) with a mineral
base oil or silicone grease. DO NOT use synthetic oils
such as esters.
d. Install piston, piston’s o-ring, control spring, and spring
retainer (Item 12). Place bonnet into body, allowing the
projecting notches on bonnet to mate with depressions
in the body. Then feed retaining spring into the joint
grove until it completely encircles the joint. See figure on
page two.
2.
To service poppet assembly:
a. Exhaust system air pressure as described above.
b. Remove cap (Item 1) by unscrewing it from body. Remove
poppet assembly, lip seals, cap’s o-ring (Item 4) and
poppet return spring.
c. Clean and carefully inspect parts for wear and damage.
If replacement is necessary, use new parts from a service
kit. (See
Service Kits Available
section.)
d. Lubricate lip seals and sliding surfaces.
e. Re-install parts as shown in figure. Note orientation of
open lips on lip seals (Items 3 & 7).
f. Lubricate cap’s o-ring and install it in o-ring groove on
cap. Then screw cap into body until the cap bottoms out
in body.
3.
Turn on air supply and adjust to desired secondary pressure
as described in the
Operation
section. Check for leaks. If
leaks occur, shut off the air supply, depressurize the air
system and make necessary adjustments to eliminate
leakage.
If you have questions concerning how to service this unit, contact
your local authorized dealer or your customer service
representative.
Service Kits Available
Body Service Kit (Balanced Poppet)
PS312B
Mounting Bracket Kit
PS309
Relieving Piston Kit
PS310
Non-Relieving Piston Kit
PS311
Gauges:
Low Pressure
0 to 410 kPa
(0 to 60 PSIG)
P781641
Standard Pressure
0 to 1100 kPa
(0 to 160 PSIG)
P781642
High Pressure
0 to 2070 kPa
(0 to 300 PSIG)
P781643
Control Springs:
7 to 410 kPa
(1 to 60 PSIG)
P78695B
21 to 860 kPa
(2 to 125 PSIG)
P78696B
34 to 1720 kPa
(5 to 250 PSIG)
P78697B
Parts Identification List
Item #
Description
1
Cap
2
Poppet Return Spring
3
Lip Seal - poppet assembly to cap
4
O-Ring - cap to body
5
Poppet Assembly
6
Lip Seal - poppet assembly to body
7
Retaining Ring
8
O-Ring - piston to poppet assembly
9
Body
10
Adjusting Screw Assembly
11
Hex Nut - used to lock adjusted pressure
12
Spring Retainer for control spring
13
Control Spring
14
Bonnet
15
Retaining Spring - attaches bonnet onto body
16
Piston
17
O-Ring - piston to body
16
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17
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5
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6
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7
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8
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4
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3
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2
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1
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14
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13
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12
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10
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11
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15
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9
Figure: 08R Regulator
(Relieving Regulator Shown)
