ARO PP10A-XXX-XXX-A Series User manual

INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
[phone] FAX [phone] © 2019
arozone.com
OPERATOR’S MANUAL PP10A-XXX-XXX-A
INCLUDING: OPERATION, INSTALLATION AND MAINTENANCE RELEASED: 5-25-18
REVISED: 2-15-19
(REV: C)
1” DRY POWDER DIAPHRAGM PUMP
1:1 RATIO (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 mate-
rial options.
7102 Valve Kit for repair of H254PS control valve.
104302 for repair of P39124-100 Filter / Regulator.
637401-XXX for Fluid Section repair with seats (see page 6).
637401-XX for Fluid Section repair without seats (see page 6).
NOTE: This kit also contains several air motor seals which will
need to be replaced.
118597-2 Spool Kit for repair of A212PD 4-way alpha valve.
637397 for Air Section repair (see page 8).
637395-8 Major Air Valve assembly (see page 9).
PUMP DATA
Models............. see Model Description Chart for “-XXX”
Pump Type......... Metallic, Dry Powder, Diaphragm Pump
Material............ see Model Description Chart
Specic Application for pumping powders up to 50 lb. / ft3
Weight ... PP10X-XAX-XXX-AXXX .... 28.65 lbs (12.97 kgs)
PP10X-XSX-XXX-AXXX .... 46.2 lbs (20.9 kgs)
Maximum Air Inlet Pressure ........ 50 psig (3.4 bar)
Maximum Fluidizing Pressure ...... 100 psig (6.9 bar)
Maximum Particle Size ............. 1/8” dia. (3.3 mm)
Maximum Temperature Limits (diaphragm / ball / seat
materials)
Santoprene®............. -40° to 225° F (-40° to 107° C)
Dimensional Data................... see page 11
Mounting Dimension . 4”x 6.25”(101.6 mm x 158.8 mm)
Noise Level @ 70 psig, 60 cpm

...... 80.6 dB(A)

Tested with 94085 muer assembly installed.
The pump sound pressure levels published here have been updated to
an Equivalent Continuous Sound Level (LA
eq
) to meet the intent of ANSI
S1.13-1971, CAGI-PNEUROP S5.1 using four microphone locations.
NOTICE: All possible options are shown in the chart, however, certain
combinations may not be recommended. Consult a representative or
the factory if you have questions concerning availability.
Figure 1
MODEL DESCRIPTION CHART
PP10A - X X X - X X X
Fluid Connection
A - 1 - 11-1/2 NPTF - 1
B - 1 - 11 BSP
Ball Material
A - Santoprene
Fluid Section Service Kit Selection
EXAMPLE: Model #PP10A-AAS-AAA
Fluid Section Service Kit # 637401-AA
PP10A - XXX - X X X
Ball Diaphragm
637401 - X X
Fluid Cap and Manifold Material
A - Aluminum
S - Stainless Steel
Diaphragm Material
A - Santoprene
M- Medical Grade Santoprene
Seat Material
A - Santoprene
S - Stainless Steel
Hardware Material
P - Plated Steel
S - Stainless Steel
PP10A-XXX-XXX-A Powder Pump
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Page 2 of 12 PP10A-XXX-XXX-A (en)
WARNING
EXCESSIVE AIR PRESSURE. Can cause per-
sonal injury, pump damage or property damage.
yDo not exceed the maximum inlet air pressure as
stated on the pump model plate.
yBe sure material hoses and other components are able
to withstand uid pressures developed by this pump.
Check all hoses for damage or wear. Be certain dispens-
ing device is clean and in proper working condition.
WARNING
STATIC SPARK. Can cause explosion result-
ing in severe injury or death. Ground pump and
pumping system.
yUse the pump grounding screw terminal provided.
Use ARO®part no. 94829 ground kit or connect a suit-
able ground wire (12 ga. minimum) to a good earth
ground source.
ySecure pump, connections and all contact points to
avoid vibration and generation of contact or static
spark.
yConsult local building codes and electrical codes for
specic grounding requirements.
yAfter grounding, periodically verify continuity of
electrical path to ground. Test with an ohmmeter from
each component (e.g., hoses, pump, clamps, contain-
er, spray gun, etc.) to ground, to ensure continuity.
Ohmmeter should show 0.1 ohms or less.
ySubmerse the outlet hose end, dispensing valve or
device in the material being dispensed if possible.
(Avoid free streaming of material being dispensed.)
yUse hoses incorporating a static wire.
yUse proper ventilation.
yKeep inammables away from heat, open ames and
sparks.
yKeep containers closed when not in use.
WARNING
Pump exhaust may contain contaminants.
Can cause severe injury. Pipe exhaust away from work
area and personnel.
yIn the event of a diaphragm rupture, material can be
forced out of the air exhaust muer.
yPipe the exhaust to a safe remote location when
pumping hazardous or inammable materials.
yUse a grounded 1” minimum ID hose between the
pump and the muer.
WARNING
HAZARDOUS PRESSURE. Can result in seri-
ous injury or property damage. Do not service or
clean pump, hoses or dispensing valve while the sys-
tem is pressurized.
yDisconnect air supply line and relieve pressure from
the system by opening dispensing valve or device and
/ or carefully and slowly loosening and removing out-
let hose or piping from pump.
WARNING
HAZARDOUS MATERIALS. Can cause serious
injury or property damage. Do not attempt to return
a pump to the factory or service center that contains
hazardous material. Safe handling practices must
comply with local and national laws and safety code
requirements.
OPERATING AND SAFETY PRECAUTIONS
READ, UNDERSTAND AND FOLLOW THIS INFORMATION TO AVOID INJURY AND PROPERTY DAMAGE.
yObtain Material Safety Data Sheets on all materials
from the supplier for proper handling instructions.
WARNING
EXPLOSION HAZARD. Models containing alu-
minum wetted parts cannot be used with 1,1,1-trichlo-
roethane, methylene chloride or other halogenated
hydrocarbon solvents which may react and explode.
yCheck pump motor section, uid caps, manifolds and
all wetted parts to assure compatibility before using
with solvents of this type.
WARNING
MISAPPLICATION HAZARD. Do not use mod-
els containing aluminum wetted parts with food prod-
ucts for human consumption. Plated parts can contain
trace amounts of lead.
CAUTION
Verify the chemical compatibility of the
pump wetted parts and the substance being pumped,
flushed or recirculated. Chemical compatibility may
change with temperature and concentration of the
chemical(s) within the substances being pumped,
ushed or circulated. For specic uid compatibility,
consult the chemical manufacturer.
CAUTION
Maximum temperatures are based on
mechanical stress only. Certain chemicals will signi-
cantly reduce maximum safe operating temperature.
Consult the chemical manufacturer for chemical com-
patibility and temperature limits. Refer to PUMP DATA
on page 1 of this manual.
CAUTION
Be certain all operators of this equipment
have been trained for safe working practices, under-
stand it’s limitations, and wear safety goggles / equip-
ment when required.
CAUTION
Do not use the pump for the structural sup-
port of the piping system. Be certain the system com-
ponents are properly supported to prevent stress on
the pump parts.
ySuction and discharge connections should be flex-
ible connections (such as hose), not rigid piped,
and should be compatible with the substance being
pumped.
CAUTION
Prevent unnecessary damage to the pump.
Do not allow pump to operate when out of material
for long periods of time.
yDisconnect air line from pump when system sits idle
for long periods of time.
CAUTION
Use only genuine ARO replacement parts to
assure compatible pressure rating and longest service
life.
NOTICE
Replacement warning labels are available
upon request: “Static Spark & Diaphragm Rupture”
pn \ 94080.
WARNING
= Hazards or unsafe practices which
could result in severe personal injury,
death or substantial property damage.
CAUTION
= Hazards or unsafe practices which
could result in minor personal injury,
product or property damage.
NOTICE
= Important installation, operation or
maintenance information.
EXCESSIVE AIR PRESSURE
STATIC SPARK
HAZARDOUS MATERIALS
HAZARDOUS PRESSURE
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PP10A-XXX-XXX-A (en) Page 3 of 12
The material inlet supply tubing should not be too small
or restrictive, which will inhibit material ow. The outlet
material volume is governed not only by the air supply,
but also by the material volume available at the inlet.
yAir supply provided should be filtered to provide clean,
dry air. A filter capable of filtering out particles larger
than 40 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.
yIf lubricated air is present, make sure that it is compatible
with the Nitrile “O” rings in the air motor section of the
pump.
NOTE: When using air for powder uidization, make sure
it is ltered and very dry.
INSTALLATION
WARNING
THE PUMPING SYSTEM MUST BE GROUNDED
TO PREVENT STATIC DISCHARGE. THIS INCLUDES THE
PUMP AND ALL INPUT AND OUTPUT SUPPLY LINES
AND RELATED SYSTEM DEVICES AND ACCESSORIES.
FAILURE TO DO SO CAN RESULT IN EXPLOSION AND SE-
RIOUS PERSONAL INJURY.
SYSTEM GROUNDING
yConsult local building codes and electrical codes for
specic requirements.
yMust comply with all applicable Local and National
codes for such applications.
yGrounding is accomplished through the ground lug
and strap provided on the pump. Keep the grounding
strap as short as possible.
ySafe operating conditions are the responsibility of the
installer and operator.
ySecure the diaphragm pump legs to a suitable surface
to avoid damage by excessive vibration.
OPERATING INSTRUCTIONS
START-UP
NOTE: PRIOR TO START-UP, MAKE SURE THE GROUNDING
INSTRUCTIONS WERE FOLLOWED.
1. Connect air supply to (263) main air supply control valve
(30 - 40 psig/ 2.1 - 2.8 bar).
2. Turn the air on.
3. Attach air (or gas) to (248) lter / regulator.
CAUTION
Do not apply excessive Fluidization Gas*
Pressure (refer to note under“Theory Of Operation”).
4. Verify that the (253) ow control is fully open.
5. At (248), turn on air (or inert gas) supply. There will be a
3 to 8 second time delay, during which the pump will be
fluidizing any powder left in the pump from an earlier
dispense. This time delay will occur on all start-ups.
OPERATION AND ADJUSTMENT
NOTE: Powder type materials can vary in ow-ability and the
same settings may not work universally. Factors such as den-
sity and humidity can require changing the mixture of ow
rate and uidization air and some experimenting should be
expected.
IMPORTANT: DO NOT TURN FILTER / REGULATOR (248) OFF.
Positive air (or gas) pressure must be supplied to the lter /
regulator to allow the pump to function. Powder will accu-
mulate in the uid caps if the pump is not allowed to expel
excess material before the pump shuts down.
GENERAL DESCRIPTION
The ARO diaphragm pump oers high volume delivery even
at low air pressure and a broad range of material compat-
ibility options available. Refer to the model and option chart.
ARO pumps feature stall resistant design, modular air motor
/ uid sections.
Air operated double diaphragm pumps utilize a pressure dif-
ferential in the air chambers to alternately create suction and
positive fluid pressure in the fluid chambers, valve checks
ensure a positive ow of uid.
This diaphragm pump was developed to address the unique
problems associated with pumping dry powders, which can
“pack out” inside the pump fluid chambers, if not kept in a
semi-uid state.
This system incorporates the use of special valves to intro-
duce air or inert gas* into the uid chambers simultaneously
to a pumping cycle, in a timed sequence which keeps the
powder in a uidized state during the transfer process.
THEORY OF OPERATION
The main air distribution valve (252) is a double pilot actu-
ated four-way valve. It is a slave to the pump major air valve.
The distribution valve recognizes the signal from two pump
major air valve (259) ports (air dumps). These signals are con-
verted into alternating output pressure distributions, which
are injected into the uid chambers during the pumping cy-
cle to uidize the powder as the diaphragm moves through
the discharge stroke.
The ow of air supplied to the uid chamber is controlled by
the (248) filter / regulator. Under normal operating condi-
tions, this is the primary control.
When air is supplied to the filter / regulator (248), the dis-
tribution valve directs the ow of air into the uid chamber
that will dispense rst for 3 to 8 seconds. The time delay then
supplies the start signal to open the main pump air supply
valve. When the pump diaphragm reaches the end of the
discharge stroke, it reverses direction. The distribution valve
then shifts and shuts off the fluidizing air to the first fluid
chamber as it applies a burst of air to the second uid cham-
ber and uidizes the powder in the second chamber.
The air induction orice (76) increases the air velocity prior
to injection point because of the orice and it prevents clog-
ging of the injector feed line.
NOTE: The restart valve (258) is a bleed valve which will stop
the pump and then restart the pump by re-initiating the time
delay cycle.
*NOTE: Use of other gases: Using only a gas to operate a 2”
pump can be rather expensive because of the high volume
needed. Separate air / gas inputs allow the uidizing feature
of this pump to utilize special inert gas, such as Nitrogen or
Argon (air), if necessary and still allow use of standard com-
pressed shop air for the pumping function.
The ability to introduce special gas also means special ma-
terials could be injected through the fluidization lines. Ap-
plications may include such materials as colorants, foaming
agents, additives, neutralizers, etc.
AIR AND LUBE REQUIREMENTS
WARNING
EXCESSIVE AIR PRESSURE. Can cause pump
damage, personal injury or property damage. The
pump air supply must be limited to 50 psig (3.4 bar)
maximum inlet air pressure.
yThe air supply line or hose to the pump should be ade-
quately sized to carry a sucient volume of air to the pump.
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Page 4 of 12 PP10A-XXX-XXX-A (en)
Restart can compress some powders to a solid that may
cause the pump to fail. The pump should cycle until most of
the powder has been purged before it is shut down.
CALIBRATION PROCEDURE ON INITIAL START-UP:
NOTE: Once these parameters are established for your spe-
cic application, they should not need to be changed.
1. Turn the ow and pressure on the (248) lter / regulator
all the way up.
2. Slowly decrease pressure and ow until pump begins to
labor (work harder).
3. Increase pressure and flow back to a point where the
pump begins to run smoothly. This will optimize the air-
to-powder mix and will help to establish the most effi-
cient working parameters.
If the pump begins to cycle slowly (bog down), the powder
can be purged by depressing the restart button. This will
stop the pump and restart the aeration cycle and allow time
to increase air ow to the aeration ports for proper material
movement.
IMPORTANT
SHUT DOWN PROCEDURE - TO HELP PREVENT PACK-OUT
It is good operating practice to dry cycle the pump 5 - 10
seconds at the end of each dispense cycle. This can be ac-
complished by closing o the powder source at the suction
of the pump or pull wand from material. This will help clear
the pump chambers of any residual powder.
CAUTION
Failure to ensure proper fluidization can
result in internal parts breakage and pump failure .
MAINTENANCE
Refer to the part views and descriptions as provided on page
6 through 11 for parts identication and Service Kit informa-
tion.
yKeep good records of service activity and include pump
in preventive maintenance program.
yCertain ARO “Smart Parts” are indicated which should be
available for fast repair and reduction of down time.
yService kits are divided to service two separate dia-
phragm pump functions: 1. AIR SECTION, 2. FLUID SEC-
TION. The FLUID SECTION is divided further to match
typical part MATERIAL OPTIONS.
yProvide a clean work surface to protect sensitive internal
moving parts from contamination from dirt and foreign
matter during service disassembly and reassembly.
yBefore disassembling, empty captured material in the
outlet manifold by turning the pump upside down to
drain material from the pump.
SCHEMATIC CIRCUIT
Figure 2
A212PD
12 14
42
Left 2
95077
Air / Nitrogen
Right 4
4
1
2
Exh 24130
1
2
H254PS
94977
3
CP10-BCP10-B
119309-103
TROUBLESHOOTING
Product discharged from exhaust outlet.
yCheck for diaphragm rupture.
yCheck tightness of (14) diaphragm screw.
Motor blows air or stalls.
yCheck (176) check valve for damage or wear.
yCheck for restrictions in valve / exhaust.
Low output volume, erratic ow, or no ow.
yCheck air supply.
yCheck for plugged outlet hose.
yCheck for kinked (restrictive) outlet material hose.
yCheck for kinked (restrictive) or collapsed inlet material
hose.
ySuction hose must be a non-collapsing type, conductive
and capable of pulling a high vacuum (up to 30” mer-
cury).
yCheck all joints on the inlet manifolds and suction con-
nections. Connection must be air tight.
yInspect the pump for solid objects lodged in the dia-
phragm chamber or the seat area.
yLoctite® and 242® are registered trademarks of Henkel Loctite Corporation yARO® is a registered trademark of Ingersoll-Rand Company y
ySantoprene® is a registered trademark of Monsanto Company, licensed to Advanced Elastomer Systems, L.P. y271™ is a trademark of Henkel Loctite Corporation y
yLubriplate® is a registered trademark of Lubriplate Division (Fiske Brothers Rening Company) y
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PP10A-XXX-XXX-A (en) Page 5 of 12
TYPICAL CROSS SECTION
Figure 3
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Page 6 of 12 PP10A-XXX-XXX-A (en)
PARTS LIST / PP10A-XXX-XXX-A FLUID SECTION
FLUID SECTION SERVICE KITS (637401-XXX or 637401-XX)
For Fluid Kits With Seats: 637401-XXX uid section service kits include: Seats (see SEAT Option, refer to -XXX in chart below), Balls (see
BALL Option, refer to -XXX in chart below), Diaphragms (see DIAPHRAGM Option, refer to -XXXin chart below), and items 19, 70, 144,
175 (listed below) plus items 174 and 94276 Lubriplate®FML-2 grease (page 7).
For Fluid Kits Without Seats: 637401-XX uid section service kits include: Balls (see BALL Option, refer to -XX in chart below), Dia-
phragms (see DIAPHRAGM Option, refer to -XXin chart below), and items 19, 70, 144, 175 (listed below) plus items 174 and 94276 Lubri-
plate® FML-2 grease (page 7).
MATERIAL CODE
[A] = Aluminum
[B] = Nitrile
[C] = Carbon Steel
[Co] = Copper
[MSp] = Medical Grade
Santoprene
[Sp] = Santoprene
[SS] = Stainless Steel
[T] = PTFE
COMMON PARTS
Item Description (size) Qty Part No. [Mtl]
1 Connecting Rod (1) 97146 [C]
5Back-Up Washer (2) 95990-3 [A]
9 Washer (2) 93189-1 [SS]
14 Bolt (M12 x 1.75-6g x 25mm) (2) 95997 [SS]
68 Air Cap (1) 95994-6 [A]
69 Air Cap (1) 95994-5 [A]
70 Gasket (2) 95843 [B]
74 Pipe Plug (1/4 - 18 NPT) (1) Y17-51-N [C]
126 Pipe Plug (1/4 - 18 NPT) (1) Y17-13-S [SS]
Item Description (size) Qty Part No. [Mtl]
131 Screw (M8 x 1.25 - 6g x 95 mm) (4) 96001 [C]
144 “U” Cup (3/4” x 1-1/8” OD) (2) Y186-49 [B]
175 “O” Ring (5/8” x 13/16” OD) (2) Y325-114 [B]
180 Washer (0.406” ID x 0.031” thick) (4) 96006 [Co]
181 Roll Pin (Ø 0.156 x 0.500) (4) Y178-52-S [SS]
195 Nut (M8 x 1.25 - 6h) (4) 96005 [SS]
208 Label (1) 93007
250 Screw, Self-Tapping
(1/4” - 14 x 1/2”) (1) Y334-104-C [C]
SEAT OPTIONS
PP10A-XXX-XXX-A
BALL OPTIONS
PP10A-XXX-XXX-A
“21” “22” (2-1/2” diameter)
-XXX Seat Qty [Mtl] -XXX Ball Qty [Mtl]
-AXX 96152-A (4) [Sp] -XAX 93278-A (4) [Sp]
-SXX 96151 (4) [SS]
DIAPHRAGM OPTIONS PP10A-XXX-XXX-A
Service Kits
with Seats
Service Kit
without Seats “7” “19” “33”
-XXX
-XXX = (Seat)
-XXX = (Ball)
-XXX= (Diaphragm)
-XX = (Ball)
-XX= (Diaphragm) Diaphragm Qty [Mtl]
“O”
Ring Qty [Mtl]
“O”
Ring Qty [Mtl]
-XXA 637401-XXA 637401-XA 96267-A (2) [Sp] 93280 (4) [E] 93279 (4) [E]
-XXM 637401-XXM 637401-XM 96267-M (2) [MSp] 93282 (4) [T] 93281 (4) [T]
MANIFOLD CONNECTION / FLUID CAP MATERIAL OPTIONS PP10A-XXX-XXX-A
Aluminum Stainless Steel
NPT BSP NPT BSP
PP10A-AAX-XXX PP10A-BAX-XXX PP10A-ASX-XXX PP10A-BSX-XXX
Item Description (size) Qty Part No. [Mtl] Part No. [Mtl] Part No. [Mtl] Part No. [Mtl]
6Back-Up Washer (2) 95990-3 [A] 95990-3 [A] 95990-1 [SS] 95990-1 [SS]
15 Fluid Cap (2) 97684 [A] 97684 [A] 97677 [SS] 97677 [SS]
60 Inlet Manifold (1) 97686-1 [A] 97686-2 [A] 97679-1 [SS] 97679-2 [SS]
61 Outlet Manifold (1) 97687-1 [A] 97687-2 [A] 97681-1 [SS] 97681-2 [SS]
63 Pipe Plug (1 - 11-1/2 NPT) (2) Y17-125 [A] - - - - - - - - Y17-55-S [SS] - - - - - - - -
(R1, 1 - 11 BSP) (2) - - - - - - - - 96160-2 [A] - - - - - - - - 96160-1 [SS]
255 Pipe Plug ( 1/4"-18 NPT) (2) Y17-51-S [A] Y17-51-S [A] Y17-51-S [SS] Y17-51-S [SS]
EXTERNAL HARDWARE OPTIONS PP10A-XXX-XXX-A
Plated Steel Stainless Steel
PP10A-XXP-XXX-A PP10A-XXS-XXX-A
Item Description (size) Qty Part No. [Mtl] Part No. [Mtl]
26 Screw (M8 x 1.25 - 6g x 30 mm) (8) 95880-1 [C] 95880 [SS]
27 Screw (M8 x 1.25 - 6g x 40 mm) (20) 95896-1 [C] 95896 [SS]
29 Nut (M8 x 1.25 - 6h) (20) 95879-1 [C] 95879 [SS]
FLUID SECTION DISASSEMBLY
1. Remove (61) outlet manifold and (60) inlet manifold.
2. Remove (22) balls, (19) “O” rings (if applicable) and (21)
seats.
3. Remove (15) uid caps.
4. Remove the (6) diaphragm washer, (7) diaphragm and (5)
back-up washer.
NOTE: Do not scratch or mar the surface of (1) diaphragm
rod.
FLUID SECTION ASSEMBLY
yAssemble in reverse order of disassembly. Refer to the
torque requirements on page 7.
yClean and inspect all parts. Replace worn or damaged
parts with new parts as required.
yLubricate®(1) diaphragm rod and (144) “U” cups with Lu-
briplate FML-2 grease (94276 grease packet is included in
service kit).
yExamine torque settings after pump has been re-started
and run a while.
 Air Motor Kit parts, see pages 8 and 9.
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PP10A-XXX-XXX-A (en) Page 7 of 12
1
144
126
69
180
131
27
175
70
144
175
70
181
22
208
250
63
60
21
68
74
26
255
195
9
14
15
29
7
6
5
63
61
19
33
22
21
19
33
 TORQUE REQUIREMENTS 
NOTE: DO NOT OVERTIGHTEN FASTENERS.
(14) diaphragm bolt, 25 - 30 ft lbs (33.8 - 40.6 Nm).
(26) screws, 20 - 25 ft lbs (27.1 - 33.8 Nm).
(29) Nut, 15 - 20 ft lbs (20.3 - 27.1 Nm).
(131) screws, 12 - 17 ft lbs (16.2 - 23.04 Nm).
LUBRICATION / SEALANTS
Apply PTFE tape to threads.
Apply Loctite® 242® to threads at assembly.
Apply Loctite 271™ to threads at assembly.
Apply Lubriplate FML-2 grease (94276) to all“O” rings,“U” cups
and mating parts.
Apply anti-seize compound to threads and bolt and nut ange
heads which contact pump case when using stainless steel fasteners.
PARTS LIST / PP10A-XXX-XXX-A FLUID SECTION
FOR THE AIR MOTOR SECTION,
SEE PAGES 8 AND 9.
Figure 4
Torque Sequence
5
3
2
7
9
1
10
8
6
4
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Page 8 of 12 PP10A-XXX-XXX-A (en)
PARTS LIST / PP10A-XXX-XXX-A AIR MOTOR SECTION
Indicates parts included in 637397 air section repair kit, plus items 70, 144, 175 and 180 (page 6).
MATERIAL CODE
[A] = Aluminum [C] = Carbon Steel [SS] = Stainless Steel
[B] = Nitrile [Ck] = Ceramic [U] = Polyurethane
[Br] = Brass [D] = Acetal
[Bz] = Bronze [Sp] = Santoprene
AIR MOTOR SECTION SERVICE
Service is divided into two parts - 1. Pilot Valve, 2. Major
Valve.
GENERAL REASSEMBLY NOTES:
yAir motor section service is continued from uid section
repair.
yInspect and replace old parts with new parts as neces-
sary. Look for deep scratches on metallic surfaces, and
nicks or cuts in “O” rings.
yTake precautions to prevent cutting “O” rings upon instal-
lation.
yLubricate“O” rings with Lubriplate FML-2 grease.
yDo not over-tighten fasteners, refer to torque specifica-
tion block on view.
yRe-torque fasteners following re-start.
yService 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 di-
rection. Lubricate and replace (167) pilot piston.
4. Reassemble remaining parts. Replace (173 and 174) “O”
rings.
MAJOR VALVE DISASSEMBLY
1. Remove (135) valve block and (233) adapter plate, expos-
ing (166 and 132) gaskets and (176) checks.
2. Remove (233) adapter plate, releasing (140) valve insert,
(141) valve plate, (200) gaskets.
3. Remove (136) plug and (137) “O” ring, releasing (111)
spool.
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 housing.
3. Install (137) “O” rings on (136) plug and assemble plug to
(135) valve housing, securing with (105) screws.
4. Install (140) valve insert, (141) gasket into (135) valve
housing. NOTE: Assemble (140) valve insert with “dished”
side toward (141) valve plate. Assemble (141) valve plate
with part number identication toward (140) valve insert.
5. Assemble (200) gaskets and (233) adapter plate to (135)
valve housing. NOTE: Tighten screws to 40 - 50 in. lbs (4.5
- 5.6 Nm).
6. Assemble (132 and 166) gaskets and (176) checks to (101)
center body.
7. Assemble (135) valve housing and components to (101)
center body, securing with (134) screws. NOTE: Tighten
screws to 40 - 50 in. lbs (4.5 - 5.6 Nm).
AIR MOTOR PARTS LIST
Item Description (size) (Qty) Part No. [Mtl] Item Description (size) (Qty) Part No. [Mtl]
101 Center Body (1) 97025 [A]
103 Bushing (1) 97672 [Bz]
105 Screw (M6 x 1 - 6g x 20 mm) (4) 95991 [SS]
111 Spool (1) 95835 [D]
118 Actuator Pin (0.250” x 1.572” long) (2) 95999 [SS]
121 Plug (2) 95123 [D]
128 Plug (1) Y17-50-S [SS]
132 Gasket (2) 96170 [B]
133 Lockwasher (1/4”) (4) Y117-416-C [C]
134 Screw (M6 x 1 - 6g x 35 mm) (4) 97745 [SS]
135 Valve Housing (1) 95942-1 [A]
136 Plug (1) 95941 [A]
137 Gasket (1) 95844 [B]
138 “U” Cup (3/16” x 1-5/8” OD) (1) Y186-53 [B]
139 “U” Cup (3/16” x 1-1/8” OD) (1) Y186-49 [B]
140 Valve Insert (1) 95838 [Ck]
141 Valve Plate (1) 95885 [Ck]
166 Bottom Gasket (2) 96171 [B]
167 Pilot Piston (includes 168 and 169) (1) 67164 [D]
168 “O” Ring (3/32” x 5/8” OD) (2) 94433 [U]
169 “U” Cup (1/8" x 7/8" OD) (1) Y240-9 [B]
170 Piston Sleeve (1) 94081 [D]
171 “O” Ring (3/32” x 1-1/8” OD) (1) Y325-119 [B]
172 “O” Ring (0.70” x 1-1/8” OD) (1) Y325-22 [B]
173 “O” Ring (0.103” x 1-3/16” OD) (2) Y325-123 [B]
174 “O” Ring (0.139” x 1/2” OD) (2) Y325-202 [B]
176 Diaphragm (check valve) (2) 95845 [Sp]
200 Gasket (1) 96172 [B]
201 Silencer (1) 350-568 [C]
233 Adapter Plate (1) 95832 [A]
285 Adapter Plate (1) 97703 [A]
Lubriplate FML-2 Grease (1) 94276
Lubriplate Grease, 10 Pack 637308
RELEASED 20/Feb/2019 12:56:22 GMT

PP10A-XXX-XXX-A (en) Page 9 of 12
169
167 168
170
172
171
118
173 121 174
103
176
285
132
166
233
200
141
140
135
133
134
138
111
139
137
128
136
105
101
118
173
121
174
201
PILOT VALVE PART GROUP
MAJOR VALVE
PARTS LIST / PP10A-XXX-XXX-A AIR MOTOR SECTION
TORQUE REQUIREMENTS 
NOTE: DO NOT OVERTIGHTEN FASTENERS.
ALL FASTENERS ARE METRIC.
(105) screw, 40 - 50 in. lbs (4.5 - 5.6 Nm).
(134) screw, 40 - 50 in. lbs (4.5 - 5.6 Nm).
LUBRICATION / SEALANTS
Apply Lubriplate FML-2 grease to all“O” rings,“U” cups and mating parts.
Apply Loctite 271 to threads at assembly.
Apply Lubricate grease to Valve Spool assemblies and Bores.
A replacement major valve service assembly is available separately, which includes the following:
637395-8 for models PP10A-XXX-XXX-A: 105(4), 111, 128, 132 (2), 133 (4), 134 (4), 135, 136, 137, 138, 139, 140, 141, 166 (2), 176 (2),
200, 233, 256, 257, 258, 263, 264, 265 and 285.
Figure 5
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PP10A-XXX-XXX-A (en) Page 10 of 12
PARTS LIST / PP10A-XXX-XXX-A CONTROL SECTION
AIR CONTROL PARTS LIST
Item Description (size) (Qty) Part No. Item Description (size) (Qty) Part No.
76 Adapter (1/8 - 27 NPTF - 1) (2) 94817
77 Elbow (1/4” OD tube x 1/8 - 27 NPT) (2) 59756-56
78 Tube (1/4” OD x 20”) (2) 59675-()
245 Air Line Connection Kit (not shown) (1) 67223
246 Adapter (1/8 NPTF male x #10 - 32 female) (1) 59629
247 Gauge (0 - 160 psig / 0 - 11 bar) (1) 29850
248 Piggyback Flter / Regulator (1) P39124-100
248A Gauge Port Block (1) 104467
249 Nipple (1/4 - 18 NPTF - 1 x 1-5/16”) (1) 1950
251 Restrictor (1) 95077
252 Alpha Valve, 4-Way (1) A212PD
253 Flow Control (1/4” OD tube x #10 - 32) (1) 119309-103
254 Reducer (1/4” OD tube x 5/32” OD tube) (1) 59765-4
256 Connector (1/4” OD tube x 1/8 - 27 NPT) (5) 59474-56
257 Adapter (1/8 - 27 PTF) (1) 94812
258 Button Bleed Valve (1/8 - 27 NPTF) (1) 24130
259 Elbow (5/32”OD tube x 1/8 - 27 NPT) (4) 59756-4
260 Check Valve (2) CP10-B
261 Mounting Bracket (1) 97704
262 Pipe Plug (1/4 - 18 NPT x 7/16”) (2) Y17-51-N
263 Control Valve (1) H254PS
264 Pipe Plug with 0.078” orice (1/2 - 14 NPT) (1) 94977
265 Nipple (1/2 - 14 NPTF - 1 x 1-1/8”) (1) Y27-4-C
267 Tube (1/4” OD x 20”) (1) 59675-()
268 Tube (1/4” OD x 5”) (2) 59675-()
269 Tube (5/32” OD x 29”) (1) 94981-()
270 Tube (5/32” OD x 29”) (1) 94981-()
271 Elbow (1/4”OD tube x 1/4 - 18 NPT) (2) 59756-156
272 Screw (#10 - 24 x 1-1/4”) (3) Y19-113-C
273 Nut (#10 - 24) (3) Y22-10-C
274 Lock Washer (#10) (3) Y14-10-C
Bulk Tubing (1/4” OD x 100’) (1) 59675-100
Bulk Tubing (5/32” OD x 100’) (1) 94981-100
PARTS LIST / PP10A-XXX-XXX-A CONTROL SECTION
262
262
259
259
272
271
268 256 260 256
252
274
273
261
29
248A
247
246
253
249
251
254
248
78
78
76 77
76
77
259
258
257
256
264
263
265
267
270
269
Figure 6
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Page 11 of 12 PP10A-XXX-XXX-A (en)
Dimensions shown are for reference only. They are displayed in inches and millimeters (mm).
C
A
D
F
Exhaust Port 3/4 - 14 NPT
Air Inlet 1/2 - 14 NPTF
Outlet
Inlet
1 - 11-1/2 NPTF - 1 (PP10A-ASS-AAA-A-A)
1 - 11 BSP (PP10A-AAS-AAA-A-A)
B
E
DIMENSIONS
A - 375.21 mm B - see below C - 101.6 mm D - 31.75 mm
E - 457.53 mm F - 293.67 mm
Pump Model “B”
PP10A-ASS-AAA-A 410.84 mm
PP10A-AAS-AAA-A 410.25 mm
Figure 7
DIMENSIONAL DATA
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Page 12 of 12 PP10A-XXX-XXX-A (en)
PN 97999-1822
RELEASED 20/Feb/2019 12:56:22 GMT