Ingersoll Rand Pf20R X B Users Manual PF20R_B_03_
PF20R-X-B to the manual 6d8c0b2b-65b9-4879-b8ec-dd8eb9c86ce8
2015-01-23
: Ingersoll-Rand Ingersoll-Rand-Pf20R-X-B-Users-Manual-342472 ingersoll-rand-pf20r-x-b-users-manual-342472 ingersoll-rand pdf
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PF20R-X-B
OPERATOR’S MANUAL
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE
RELEASED: 12-14-04
REVISED:
5-5-10
(REV. 03)
2” DIAPHRAGM PUMP
1:1 RATIO FLAP VALVE (METALLIC)
READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
OPERATING OR SERVICING THIS EQUIPMENT.
It is the responsibility of the employer to place this information in the hands of the operator. Keep for future reference.
SERVICE KITS
Refer to Model Description Chart to match the pump material options.
637369 for air section repair (see page 6).
637310-XX for fluid section repair (see page 3).
637374 major air valve assembly (see page 7).
PUMP DATA
Models . .
Pump Type
Material . .
Weight . . .
see Model Description Chart for “-XXX”.
Metallic, Air Operated, Double Diaphragm, Flap Valve
see Model Description Chart.
PF20X-XCX-SXX-B . . . . . 178.7 lbs (81.1 kgs)
PF20X-XSX-SXX-B . . . . . 180.6 lbs (81.9 kgs)
Maximum Air Inlet Pressure . . . . . . . . . 120 p.s.i.g. (8.3 bar)
Maximum Material Inlet Pressure . . . . . 10 p.s.i.g. (0.69 bar)
Maximum Outlet Pressure . . . . . . . . . . 120 p.s.i.g. (8.3 bar)
Maximum Flow Rate . . . . . . . . . . . . . . 172 g.p.m. (651 l.p.m.)
Displacement / Cycle @ 100 p.s.i.g. . . . 1.4 gal. (5.3 lit.)
Maximum Particle Size . . . . . . . . . . . . 2” dia. (51 mm) semi-solids
Maximum Temperature Limits (diaphragm / flap / bumper material)
E.P.R. / EPDM . . . . . . . . . . . -60_ to 280_ F (-51_ to 138_ C)
Nitrile . . . . . . . . . . . . . . . . . 10_ to 180_ F (-12_ to 82_ C)
Polyurethane . . . . . . . . . . . . 10_ to 150_ F (-12_ to 66_ C)
SantopreneR . . . . . . . . . . . -40_ to 225_ F (-40_ to 107_ C)
PTFE . . . . . . . . . . . . . . . . . 40_ to 225_ F (4_ to 107_ C)
VitonR . . . . . . . . . . . . . . . . -40_ to 350_ F (-40_ to 177_ C)
Dimensional Data . . . . . . . . . . . . . . . . see page 8
Mounting Dimension . . . . . 9-1/16” x 10-1/16” (230 mm x 256 mm)
Noise Level @ 70 p.s.i., 60 c.p.m.{ . . . . 85.0 db(A)|
{ Tested with 67263 muffler assembly installed.
| The pump sound pressure levels published here have been updated to an Equivalent Continuous
Sound Level (LAeq) to meet the intent of ANSI S1.13-1971, CAGI-PNEUROP S5.1 using four microphone locations.
Figure 1
MODEL DESCRIPTION CHART
PF20 X - X X X - S X X - B
AIR MOTOR / AIR CAP MATERIAL
R - Polypropylene / Stainless Steel
Y - Polypropylene / Cast Iron
THREAD
A - N.P.T.F.
B - BSP
FLUID CAPS & MANIFOLD MATERIAL
C - Cast Iron
S - Stainless Steel
HARDWARE MATERIAL
P - Plated Steel
S - Stainless Steel
SEAT MATERIAL
S - Stainless Steel
FLAP MATERIAL
A - E.P.R.
G - Nitrile
U - Polyurethane
V - Viton
DIAPHRAGM MATERIAL
A - Santoprene
T - PTFE / Santoprene
G - Nitrile
V - Viton
FLUID SECTION SERVICE KIT SELECTION
PF20X - XXX - S X X - B
637310 - X X
EXAMPLE: MODEL # PF20R-ACP-SAA-B
FLUID SECTION SERVICE KIT # 637310-AA
INGERSOLL RAND COMPANY
209 NORTH MAIN STREET
BRYAN, OHIO 43506
(800) 276-4658 D FAX (800) 266-7016
www.ingersollrandproducts.com
E2010
CCN 15227671
Flap
Diaphragm
OPERATING AND SAFETY PRECAUTIONS
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
READ, UNDERSTAND, AND FOLLOW THIS INFORMATION TO AVOID INJURY AND PROPERTY DAMAGE.
supplier for proper handling instructions.
HAZARDOUS MATERIALS
EXCESSIVE AIR PRESSURE
WARNING
EXPLOSION HAZARD. Models containing alumiHAZARDOUS PRESSURE
STATIC SPARK
num wetted parts cannot be used with III.-Trichloroethane, Methylene Chloride or other Halogenated Hydrocarbon solvents
which may react and explode.
WARNING EXCESSIVE AIR PRESSURE. Can cause personS Check pump motor section, fluid caps, manifolds and all
al injury, pump damage or property damage.
wetted parts to assure compatibility before using with solvents
Do not exceed the maximum inlet air pressure as stated on the
of this type.
pump model plate.
WARNING
MISAPPLICATION HAZARD. Do not use models
Be sure material hoses and other components are able to withstand fluid pressures developed by this pump. Check all hoses
containing aluminum wetted parts with food products for hufor damage or wear. Be certain dispensing device is clean and
man consumption. Plated parts can contain trace amounts of
in proper working condition.
lead.
WARNING STATIC SPARK. Can cause explosion resulting in
CAUTION Verify the chemical compatibility of the pump
severe injury or death. Ground pump and pumping system.
wetted parts and the substance being pumped, flushed or reUse the pump grounding screw terminal provided. Use ARO
circulated. Chemical compatibility may change with temperapart no. 66885-1 ground kit or connect a suitable ground wire
ture and concentration of the chemical(s) within the
(12 ga. min.) to a good earth ground source.
substances being pumped, flushed or circulated. For specific
Secure pump, connections and all contact points to avoid
fluid compatibility, consult the chemical manufacturer.
vibration and generation of contact or static spark.
CAUTION Maximum temperatures are based on mechaniConsult local building codes and electrical codes for specific
cal stress only. Certain chemicals will significantly reduce
grounding requirements.
maximum safe operating temperature. Consult the chemical
After grounding, periodically verify continuity of electrical path
manufacturer for chemical compatibility and temperature limto ground. Test with an ohmmeter from each component (e.g.,
its. Refer to PUMP DATA on page 1 of this manual.
hoses, pump, clamps, container, spray gun, etc.) to ground to
CAUTION Be certain all operators of this equipment have
insure continuity. Ohmmeter should show 0.1 ohms or less.
been
trained for safe working practices, understand it’s limitaSubmerse the outlet hose end, dispensing valve or device in
tions,
and wear safety goggles / equipment when required.
the material being dispensed if possible. (Avoid free streaming
CAUTION Do not use the pump for the structural support of
of material being dispensed.)
the piping system. Be certain the system components are
Use hoses incorporating a static wire.
properly supported to prevent stress on the pump parts.
Use proper ventilation.
S
Suction
and discharge connections should be flexible connecKeep inflammables away from heat, open flames and sparks.
tions (such as hose), not rigid piped, and should be compatible
Keep containers closed when not in use.
with the substance being pumped.
WARNING Pump exhaust may contain contaminants. Can
CAUTION Prevent unnecessary damage to the pump. Do
cause severe injury. Pipe exhaust away from work area and pernot allow pump to operate when out of material for long periods
sonnel.
of time.
In the event of a diaphragm rupture, material can be forced out
S Disconnect air line from pump when system sits idle for long
of the air exhaust muffler.
periods of time.
Pipe the exhaust to a safe remote location when pumping hazCAUTION Use only genuine ARO replacement parts to asardous or inflammable materials.
Use a grounded 1” minimum i.d. hose between the pump and
sure compatible pressure rating and longest service life.
the muffler.
NOTICE
Replacement warning labels are available upon
WARNING HAZARDOUS PRESSURE. Can result in serious
request: “Static Spark & Diaphragm Rupture” pn \ 94080.
injury or property damage. Do not service or clean pump,
hoses or dispensing valve while the system is pressurized.
Disconnect air supply line and relieve pressure from the sysWARNING = Hazards or unsafe practices which could
result in severe personal injury, death or
tem by opening dispensing valve or device and / or carefully
substantial property damage.
and slowly loosening and removing outlet hose or piping from
pump.
=
Hazards
or unsafe practices which could
CAUTION
WARNING HAZARDOUS MATERIALS. Can cause serious inresult in minor personal injury, product or
property damage.
jury or property damage. Do not attempt to return a pump to the
factory or service center that contains hazardous material.
=
Important installation, operation or mainNOTICE
Safe handling practices must comply with local and national
tenance information.
laws and safety code requirements.
Obtain Material Safety Data Sheets on all materials from the
Page 2 of 8
PF20R-X-B
GENERAL DESCRIPTION
MAINTENANCE
The ARO diaphragm pump offers high volume delivery even at low air
pressure and a broad range of material compatibility options available.
Refer to the model and option chart. ARO pumps feature stall resistant
design, modular air motor / fluid sections.
Air operated double diaphragm pumps utilize a pressure differential in
the air chambers to alternately create suction and positive fluid pressure
in the fluid chambers, flap checks insure a positive flow of fluid.
Pump cycling will begin as air pressure is applied and it will continue to
pump and keep up with the demand. It will build and maintain line pressure and will stop cycling once maximum line pressure is reached (dispensing device closed) and will resume pumping as needed.
S Provide a clean work surface to protect sensitive internal moving
parts from contamination from dirt and foreign matter during service
disassembly and reassembly.
S Keep good records of service activity and include pump in preventive maintenance program.
S Before disassembling, empty captured material in the outlet manifold by turning the pump upside down to drain material from the
pump.
FLUID SECTION DISASSEMBLY
WARNING EXCESSIVE AIR PRESSURE. Can cause pump
damage, personal injury or property damage.
S A filter capable of filtering out particles larger than 50 microns should
be used on the air supply. There is no lubrication required other than
the “O” ring lubricant which is applied during assembly or repair.
S If lubricated air is present, make sure that it is compatible with the
Nitrile “O” rings in the air motor section of the pump.
1. Remove (61) top manifold, (60) bottom manifold and (53) manifold
elbow.
2. Remove the flap valve cartridge / seat assemblies.
3. Remove (15) fluid caps.
NOTE: Only PTFE diaphragm models use a primary diaphragm (7) and
a backup diaphragm (8). Refer to the auxiliary view in the Fluid Section
illustration.
4. Remove the (6) diaphragm washer, (7) diaphragm and (5) backup
washer.
NOTE: Do not scratch or mar the surface of (1) diaphragm rod.
OPERATING INSTRUCTIONS
FLUID SECTION REASSEMBLY
S Always flush the pump with a solvent compatible with the material
S Reassemble in reverse order. Refer to the torque requirements on
AIR AND LUBE REQUIREMENTS
S
S
S
S
being pumped if the material being pumped is subject to “setting up”
when not in use for a period of time.
Disconnect the air supply from the pump if it is to be inactive for a few
hours.
The outlet material volume is governed not only by the air supply but
also by the material supply available at the inlet. The material supply
tubing should not be too small or restrictive. Be sure not to use hose
which might collapse.
When the diaphragm pump is used in a forced-feed (flooded inlet)
situation, it is recommended that a “Check Valve” be installed at the
air inlet.
Secure the diaphragm pump legs to a suitable surface to insure
against damage by vibration.
page 5.
S Clean and inspect all parts. Replace worn or damaged parts with
new parts as required.
S Lubricate (1) diaphragm rod and (144) “U” cup with LubriplateR
FML-2 grease (94276 grease packet is included in service kit).
S For models with PTFE diaphragms: Item (8) Santoprene diaphragm
is installed with the side marked “AIR SIDE” towards the pump center body. Install the PTFE diaphragm (7) with the side marked
“FLUID SIDE” towards the (15) fluid cap.
S Re-check torque settings after pump has been re-started and run a
while.
PARTS AND SERVICE KITS
Refer to the part views and descriptions as provided on page 4 through 7
for parts identification and Service Kit information.
S Certain ARO “Smart Parts” are indicated which should be available
for fast repair and reduction of down time.
S Service kits are divided to service two separate diaphragm pump
functions: 1. AIR SECTION, 2. FLUID SECTION. The FLUID SECTION is divided further to match typical part MATERIAL OPTIONS.
VitonR is trademark of the DuPont Company, S KynarR is a registered trademark of Penwalt Corp.
SantopreneR is a registered trademark of Monsanto Company, licensed to Advanced Elastomer Systems, L.P. S LubriplateR is a registered trademark of Lubriplate Division (Fiske Brothers)
PF20R-X-B
Page 3 of 8
PARTS LIST / PF20X-X-X-B FLUID SECTION
FLUID SECTION SERVICE KITS (637310-XX)
L KITS INCLUDE: DIAPHRAGMS (See Diaphragm Option, refer to -XX in chart below), Flap Valve items (47), (48), (51) and (55), plus items (44),
(46), (70), (75), (144) and (175) listed below, plus (174) and a (94276) Lubriplate FML-2 grease packet.
FLAP VALVE OPTIONS PF20X-XXX-SXX-B
L “47”
-XXX
L “48”
MATERIAL CODE
L “51”
L “55”
Bumper
Qty
[Mtl]
Flap
Qty
[Mtl]
Gasket
Qty
[Mtl]
Gasket
Qty
[Mtl]
-XAX 93197-5
-XGX 93197-2
(4)
(4)
[E]
[B]
93196-5
93196-2
(4)
(4)
[E]
[B]
94365-1
94365-2
(4)
(4)
[E]
[B]
94364-1
94364-2
(4)
(4)
[E]
[B]
-XUX
93197-5
(4)
[E]
93070
(4)
[U]
94365-1
(4)
[E]
94364-1
(4)
[E]
-XVX
93197-3
(4)
[V]
93196-3
(4)
[V]
94365-3
(4)
[V]
94364-3
(4)
[V]
SEAT OPTIONS
PF20X-XXX-XXX-B
[B] = Nitrile
[C] = Carbon Steel
[Co] = Copper
[CI] = Cast Iron
[E] = E.P.R.
[SP] = Santoprene
[SS] = Stainless Steel
[T] = PTFE
[U] = Polyurethane
[V] = Viton
DIAPHRAGM OPTIONS
PF20X-XXX-SXX-B
“49”
L
SERVICE KIT
L “7”
-XX = (Flap Valve)
-XX = (Diaphragm) Diaphragm
-XXX
Seat
Qty
[Mtl]
-XXX
-SXX
94366
(4)
[SS]
-XXA 637310-XA
-XXG 637310-XG
-XXT
-XXV
L “8”
Qty
[Mtl]
Diaphragm
Qty
[Mtl]
94329-A
94329-G
(2)
(2)
[SP]
[B]
---------
-----
-----
637310-XT
94355-T
(2)
[T]
94330-A
(2)
[SP]
637310-XV
95344
(2)
[V]
-----
---
---
MANIFOLD THREAD / FLUID CAP MATERIAL OPTIONS PF20X-XXX-SXX-B
Cast Iron
Stainless Steel
PF20X-ACX-SXX-B PF20X-BCX-SXX-B PF20X-ASX-SXX-B PF20X-BSX-SXX-B
(N.P.T.F.)
(B.S.P.)
(N.P.T.F.)
(B.S.P.)
Item
15
53
60
61
63
Description (size)
Fluid Cap
Manifold Elbow
Bottom Manifold
Top Manifold
Pipe Plug (2 - 11-1/2 N.P.T.)
(R-2, 2 - 11 BSP)
80 Pipe Plug (1/8 - 27 N.P.T.F.)
Qty
(2)
(2)
(1)
(1)
(2)
(2)
(2)
Part No.
94359
94362
94347-1
94348-1
Y17-28-C
----Y227-2-L
[Mtl]
[CI]
[CI]
[CI]
[CI]
[C]
--[C]
Part No.
94359
94362
94347-2
94348-2
----94439-1
Y227-2-L
[Mtl]
[CI]
[CI]
[CI]
[CI]
--[C]
[C]
Part No.
95560
95563
95510-1
95511-1
--------Y17-50-S
[Mtl]
[SS]
[SS]
[SS]
[SS]
----[SS]
Part No.
95560
95563
95510-2
95511-2
--------Y17-50-S
[Mtl]
[SS]
[SS]
[SS]
[SS]
----[SS]
EXTERNAL HARDWARE OPTION PF20X-XXX-SXX-B
PF20X-XXP-SXX-B PF20X-XXS-SXX-B
Item
Description (size)
Qty
Part No.
[Mtl]
Part No.
[Mtl]
26 Screw (M10 x 1.5 - 6g x 35 mm)
27 Screw (M10 x 1.5 - 6g x 45 mm)
(20) 94409-1
(16) 94990-1
[C]
[C]
94409-2
94990
[SS]
[SS]
29 Nut (M10 x 1.5 - 6g)
(16) 94992-1
[C]
94992
[SS]
COMMON PARTS
Item
Description (size)
V 1 Rod
Qty
Part No.
[Mtl]
Item
Description (size)
Qty
Part No.
[Mtl]
(1)
94358
[C]
69 Air Cap (models PF20R-X-X-B)
(1)
94349-2
[SS]
5 Backup Washer
(2)
94357-2
[SS]
(models PF20Y-X-X-B)
(1)
94345-2
[CI]
V 6 Diaphragm Washer
(2)
94357-2
[SS]
L n 70
Gasket
(2)
94100
[B]
(2)
93065
[SS]
L 75
Plate
(4)
94620
[SS]
(2)
Y5-111-T
[SS]
126 Pipe Plug (1/4 - 18 N.P.T. x 7/16”)
(2)
Y17-51-S
[SS]
131 Screw (M10 x 1.5 - 6g x 120 mm)
9 Washer
14 Screw (5/8” - 18 x 2-1/2”)
L 44
Screw
(8)
94408
[SS]
(4)
94531
[C]
L 46
Bracket
(4)
93192
[SS]
Ln144
“U” Cup (3/16” x 1-3/8” o.d.)
(2)
Y186-51
[B]
68 Air Cap (models PF20R-X-X-B)
(1)
94349-1
[SS]
Ln175
“O” Ring (3/32” x 1” o.d.)
(2)
Y325-117
[B]
(models PF20Y-X-X-B)
(1)
94345-1
[CI]
n 180
Washer (0.406” i.d. x 0.031” thick)
(4)
94098
[Co]
(4)
Y178-56-S
[SS]
181 Roll Pin (5/32” o.d. x 3/4” long)
V “Smart Parts” keep these items on hand in addition to the service kits for fast repair and reduction of down time.
Page 4 of 8
n Air Motor Kit Parts, see page 6.
PF20R-X-B
PARTS LIST / PF20X-X-X-B FLUID SECTION
COLOR CODE
FOR THE
AIR MOTOR SECTION
SEE PAGES 6 & 7
DIAPHRAGM
MATERIAL
COLOR
FLAP
COLOR
BUMPER
COLOR
E.P.R.
Nitrile
Santoprene
Santoprene
(Backup)
PTFE
Urethane
Viton
-Black
Tan
Green
Blue (S)
Red (S)
---
Blue (S)
Red (S)
---
White
-Yellow (--)
-Red
Yellow (S)
--Yellow (S)
(--) Dash
(S) Dot
3
5
8
7
6
2
¡
26 , G
181
G . 44 75 46 47 48 49
55
144 k 70 k
144 k 70 k
1k
69
5
7
6
175 k 126
4
Torque Sequence
61
68
1
9
14 ,
53
80 u
175 k
15
29
G . 27
180
60
26 , G
55
131 , x
63
Figure 2
¡ Cartridge Assembly available.
Includes items 44, 46, 47, 48, 49, 51, 75.
66307-A (PF20X-XXX-SAX-B)
66307-G (PF20X-XXX-SGX-B)
66307-U (PF20X-XXX-SUX-B)
66307-V (PF20X-XXX-SVX-B)
49 48
47 46 75 44 , G
51
26 , G
¡
. TORQUE REQUIREMENTS ,
NOTE: DO NOT OVERTIGHTEN FASTENERS.
ALL FASTENERS ARE METRIC.
VIEW OF TWO PIECE PTFE DIAPHRAGM
8 SANTOPRENE
7 PTFE
(14) Diaphragm screw, apply Loctite #271 to threads, torque to 65 - 70 ft lbs
(88.1 - 94.9 Nm).
(26 and 27) Fluid caps / manifold screw, 30 - 40 ft lbs (40.7 - 54.2 Nm).
(44) Screw, 50 - 60 in. lbs (5.6 - 6.8 Nm).
(131) Screw, 35 - 40 ft lbs (47.5 - 54.2 Nm).
G Apply anti-seize compound to threads when using stainless steel fasteners
and stainless steel wet ends.
LUBRICATION / SEALANTS
Apply Lubriplate FML-2 grease to all “O” rings, “U” Cups & mating parts.
x Apply Loctite 242 to threads at assembly.
u Apply Loctite 503 pipe sealant.
k
Z Lubriplate FML-2 is a white food grade petroleum grease.
PF20R-X-B
Page 5 of 8
PARTS LIST / PF20X-X-X-B AIR SECTION
n Indicates parts included in 637369 Air Section Service Kit shown below and items (70), (144), (175), (180) shown on page 4.
AIR MOTOR PARTS
Item
~
Qty
Part No.
101 Center Body
Description (size)
(1)
95667
[Mtl]
Item
Qty
Part No.
[Mtl]
(1)
94081
[Br]
103 Bushing
(1)
94092
[D]
105 Screw (M6 x 1 - 6g x 180 mm)
(4)
95921
[SS]
n 171 “O” Ring (3/32” x 1-1/8” o.d.)
(1)
Y325-119
[B]
n 172 “O” Ring (1/16” x 1-1/8” o.d.)
(1)
Y325-22
[B]
107 End Plate
(2)
95846
[SS]
111 Spool
(1)
95651
[D]
Kn 174 “O” Ring (1/8” x 1/2” o.d.)
n 173 “O” Ring (1/16” x 1-3/8” o.d.)
(2)
Y325-26
[B]
(2)
Y325-202
[B]
[P]
Description (size)
170 Piston Sleeve
118 Actuator Pin (0.250” x 2.276” long)
(2)
94083
[SS]
n 176 Diaphragm (check valve)
(2)
94102
[SP]
121 Sleeve
(2)
94084
[D]
n 199 Track Gasket
(1)
95666
[B]
127 90_ St. Elbow (1-1/2 - 11-1/2 N.P.T.)
(1)
94860
[C / I]
n 200 Gasket
(1)
95665
[B]
201 Muffler
(1)
94810
(2)
Y325-202
n 132 Gasket
(1)
94099
[B]
133 Washer (M6)
(8)
95931
[SS]
134 Screw (M6 x 1 - 6g x 35 mm)
(8)
95923
[SS]
233 Adapter Plate
(1)
95761
[P]
135 Valve Block
(1)
95789
[P]
236 Nut (M6 x 1 - 6g)
(4)
95924
[SS]
136 End Cap
~
n 232 “O” Ring (1/8” x 1/2” o.d.)
[B]
(1)
95790
[P]
n 243 “O” Ring (1/8” x 5/8” o.d.)
(1)
Y325-204
[B]
n 137 “O” Ring (1/16” x 2” o.d.)
(1)
Y325-32
[B]
n 244 “O” Ring (1/8” x 7/8” o.d.)
(1)
Y325-208
[B]
n 138 “U” Cup (3/16” x 1.792” o.d.)
(1)
95966
[B]
(1)
94276
n 139 “U” Cup (3/16” x 1-1/4” o.d.)
(1)
Y186-50
[B]
140 Valve Insert
(1)
95650
[Ck]
141 Valve Plate
(1)
95659
[Ck]
n 166 Track Gasket
(1)
94026
[B]
n 167 Pilot Piston (includes 168 and 169)
(1)
67164
[D]
168 “O” Ring (3/32” x 5/8” o.d.)
(2)
94433
[U]
169 “U” Cup (1/8” x 7/8” o.d.)
(1)
Y240-9
[B]
L n Lubriplate FML-2 Grease
Lubriplate Grease Packets (10)
~
637308
Items not shown
MATERIAL CODE
[B] =
[Br] =
[C] =
[Ck] =
Nitrile
Brass
Carbon Steel
Ceramic
[D] = Acetal
[I] = Iron
[P] = Polypropylene
[SP] = Santoprene
[SS] = Stainless Steel
[U] = Polyurethane
K Fluid Section Service Kit parts, see page 4.
AIR MOTOR SECTION SERVICE
MAJOR VALVE DISASSEMBLY
Service is divided into two parts - 1. Pilot Valve, 2. Major Valve.
1. Remove (135) valve block and (233) adapter plate, exposing (132
and 166) gaskets, (232) “O” ring and (176) checks.
2. Remove (233) adapter plate, releasing (140) valve insert, (141)
valve plate, (199 and 200) gaskets and (232, 243 and 244) “O” rings.
3. Remove (136) end cap and (137) “O” ring, releasing (111) spool.
GENERAL REASSEMBLY NOTES:
S Air Motor Section Service is continued from Fluid Section repair.
S Inspect and replace old parts with new parts as necessary. Look for
deep scratches on surfaces, and nicks or cuts in “O” rings.
S Take precautions to prevent cutting “O” rings upon installation.
S Lubricate “O” rings with Lubriplate FML-2 grease.
S Do not over-tighten fasteners, refer to torque specification block on
view.
S Re-torque fasteners following restart.
S SERVICE TOOLS -- To aid in the installation of (168) “O” rings onto
the (167) pilot piston, use tool # 204130-T, available from ARO.
PILOT VALVE DISASSEMBLY
1. A light tap on (118) should expose the opposite (121) sleeve, (167)
pilot piston and other parts.
2. Remove (170) sleeve, inspect inner bore of sleeve for damage.
PILOT VALVE REASSEMBLY
1. Clean and lubricate parts not being replaced from service kit.
2. Install new (171 and 172) “O” rings, replace (170) sleeve.
3. Install new (168) “O” rings and (169) seal - Note the lip direction. Lubricate and replace (167).
4. Reassemble remaining parts, replace (173 and 174) “O” rings.
MAJOR VALVE REASSEMBLY
1. Install new (138 and 139) “U” cups on (111) spool -- LIPS MUST
FACE EACH OTHER.
2. Insert (111) spool into (135) valve block.
3. Install (137) “O” ring on (136) end cap and assemble end cap to
(135) valve block, securing with (107) end plates and (105) screws.
4. Install (140) valve insert and (141) valve plate into (135) valve block.
NOTE: Assemble (140) valve insert with “dished” side toward (141)
valve plate. Assemble (141) valve plate with 2 identification dots toward (199 and 200) gaskets.
5. Assemble (232, 243 and 244) “O” rings, (199 and 200) gaskets and
(233) adapter plate to (135) valve block.
6. Assemble (132 and 166) gaskets, (176) checks and (232) “O” ring to
(101) body.
7. Assemble (135) valve block and components to (101) body, securing with (134) screws.
V “Smart Parts” Keep these items on hand in addition to the service kits for fast repair and reduction of down time.
Page 6 of 8
PF20R-X-B
PARTS LIST / PF20X-X-X-B AIR SECTION
118
169 k 168 k
172 k
171 k
121
k 174
170
PILOT VALVE
PART GROUP
k 173
167
140
141 k
244 k 243 k 132 k 166 k
173 k
107
121
. 105
118
133
174 k
135
103
101
199 k 232 k 200 k
. 134
233
232 k
176 k
Optional 94117 Muffler
138 k
111
MAJOR
VALVE
139 k
137 k
136
107
236
. TORQUE REQUIREMENTS ,
NOTE: DO NOT OVERTIGHTEN FASTENERS.
ALL FASTENERS ARE METRIC.
Torque (105) Screw to 35 - 40 in. lbs (4.0 - 4.5 Nm).
Torque (134) Screw to 35 - 40 in. lbs (4.0 - 4.5 Nm).
LUBRICATION / SEALANTS
k Apply Lubriplate FML-2 grease to “O” rings, “U” Cups
& mating parts.
A 637374 Replacement Major Valve Service Assembly is available separately, which includes the following:
105 (4), 107 (2), 111, 132, 135, 136, 137, 138, 139, 140, 141, 166, 176 (2), 199, 200, 232 (2), 233, 236 (4), 243 and 244.
Figure 3
PF20R-X-B
Page 7 of 8
TROUBLE SHOOTING
Product discharged from exhaust outlet.
S Check for diaphragm rupture.
S Check tightness of (14) diaphragm screw.
Air bubbles in product discharge.
S Check connections of suction plumbing.
S Check gaskets between intake manifold and inlet side fluid caps.
S Check tightness of (14) diaphragm screw.
Motor blows air or stalls.
S Check (176) check valve for damage or wear.
S Check for restrictions in valve / exhaust.
Low output volume, erratic flow, or no flow.
Check air supply.
Check for plugged outlet hose.
Check for kinked (restrictive) outlet material hose.
Check for kinked (restrictive) or collapsed inlet material hose.
Check for pump cavitation - suction pipe should be sized at least as
large as the inlet thread diameter of the pump for proper flow if high
viscosity fluids are being pumped. Suction hose must be a non-collapsing type, capable of pulling a high vacuum.
S Check all joints on the inlet manifolds and suction connections.
These must be air tight.
S Inspect the pump for solid objects logged in the diaphragm chamber
or the seat area.
S
S
S
S
S
DIMENSIONAL DATA
(Dimensions shown are for reference only, they are displayed in inches and millimeters (mm).
E
(PF20X-AXX-SXX-B) 2 - 11-1/2 N.P.T.F. - 1
(PF20X-BXX-SXX-B) Rp 2 (2 - 11 BSP parallel)
N
F
P
L
Air Inlet 3/4 - 14 N.P.T.
Inlet
B
M
G
D
K
Outlet
H
C
Dotted lines show optional
67263 muffler assembly.
J
A
Exhaust port 1-1/2 - 11-1/2 N.P.S.M.
DIMENSIONS
A -B -C -D --
Figure 4
23-9/32” (591.3 mm)
24-3/4” (628.7 mm)
10-1/16” (255.6 mm)
see below
PF20X-XCX-SXX-B
PF20X-XSX-SXX-B
E -F -G -H --
21-11/32” (541.9 mm)
12” (304.8 mm)
26-1/4” (666.8 mm)
9-1/16” (230.2 mm)
“D”
1-7/8” (47.6 mm)
2-1/2” (63.5 mm)
J -K -L -M --
10-1/16” (255.6 mm)
9/16” (14.3 mm)
see below
see below
“L”
2” (50.8 mm)
2-3/32” (53.0 mm)
N -- 16-3/16” (410.8 mm)
P -- see below
“M”
12-19/32” (319.9 mm)
13-1/4” (336.6 mm)
“P”
9-7/8” (250.7 mm)
--------------
PN 97999-1113
Page 8 of 8
PF20R-X-B
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