- Binks-GEMINI-81883X [ Español ]
RELEASED: 9-21-99
REVISED: 1-25-19
(REV: R)
INCLUDING: OPERATION, INSTALLATION AND MAINTENANCE
1/2 DIAPHRAGM PUMP
1:1 RATIO
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 pumpmaterial options.
862004 for Air Section repair (see page 8).
862040 for replacement of diaphragms (see pages 4 and 6).
862041 for replacement of diaphragms (see page 6).
862042 for replacement of diaphragms (see page 6).
862045 for replacement of balls and seats (see pages 4 and 6).
862046 (optional) for replacement of balls and seats (see pages 4 and 6).
862047 for replacement of balls and seats (see pages 4 and 6).
PUMP DATA
Models see Model Description Chart.. . . . . . . . . . . . . . . . .
Pump Type Air Operated Double Diaphragm.. . . . . . . . . . . . . .
Material see Model Description Chart.. . . . . . . . . . . . . . . . .
Weight models 818830, 818834 14.6 lbs (6.6 kgs). . . . . . . .
models 818831, 818836 8.8 lbs (4.0 kgs). . . . . . .
models 818832, 818833, 818835 7.2 lbs (3.3 kgs).
models 818837, 818838 8.36 lbs (3.8 kgs). . . . . . .
Maximum Air Inlet Pressure . . . . . . . . . . . 100 psig (6.9 bar)
Maximum Material Inlet Pressure . . . . . . . 10 psig (0.69 bar)
Maximum Outlet Pressure . . . . . . . . . . . . 100 psig (6.9 bar)
Air Consumption 1 c.f.m. / gallon (approx.). . . . . . . . . . . . . . . . . .
Maximum Flow Rate (flooded inlet)
818830, 818832, 818833, 818836, 818837 13 gpm (49.2 lpm)
818831, 818834, 818835, 818838 . . . . . . 7 gpm (26.5 lpm)
Displacement / Cycle @ 100 psig
818830, 818832, 818833, 818836, 818837 0.040 gal. (0.15 lit.)
818831, 818834, 818835, 818838 0.022 gal. (0.08 lit.). . . . . .
Maximum Particle Size 3/32 dia. (2.4 mm). . . . . . . . . . . . . .
Maximum Temperature Limits (based on thematerials of the following
items: Fluid Caps / Manifolds, Seats, Diaphragms, Seals, Balls)
E.P.R. -60_ to 280_F (-51_ to 138_C). . . . . . . . . . . . . . . . . . .
Groundable Acetal -20_ to 180_ F (-29_ to 82_ C). . . . . . . . . .
Polypropylene 32_ to 175_ F (0_ to 79_ C). . . . . . . . . . . . .
Polyurethane -10_ to 150_ F (-23_ to 66_ C). . . . . . . . . . . . . .
SantopreneR -40_ to 225_F (-40_ to 107_C). . . . . . . . . . . . .
PTFE 40_ to 225_ F (4_ to 107_ C). . . . . . . . . . . . . . . . . . .
Dimensional Data see pages 10 and 11.. . . . . . . . . . . . . . . . . .
Noise Level @ 70 psig, 60 cpm . . . . . . . 71.1 dB(A)*
* 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
micro-phone locations.
818830, 818834 818831, 818832,
818833, 818835,
818836
Figure 1
818837, 818838
MODEL DESCRIPTION CHART
THREADS -- 1/2 - 14 N.P.T.F. - 1
INLET & OUTLET MANIFOLD -- Single piece
CENTER BODY MATERIAL -- Polypropylene
SEAT MATERIAL -- 316 Stainless Steel
BALL MATERIAL -- Stainless Steel
-- PTFE (optional kit)
-- Santoprene
DIAPHRAGM MATERIAL -- PTFE
-- Santoprene
81883 X
FLUID CAP / MANIFOLD MATERIAL, BALL MATERIAL
0 -- Stainless Steel, Stainless Steel (Standard Stroke)
1 -- Groundable Acetal, Stainless Steel (Short Stroke)
2 -- Polypropylene, Santoprene (Standard Stroke)
3 -- Polypropylene, Stainless Steel (Standard Stroke)
4 -- Stainless Steel, Stainless Steel (Short Stroke)
5 -- Polypropylene, Santoprene (Short Stroke)
6 -- Groundable Acetal, Stainless Steel (Standard Stroke)
7 -- Aluminum, Stainless Steel (Standard Stroke)
8 -- Aluminum, Stainless Steel (Short Stroke)
R
CCN 99866733
U.S.A. / Canada Customer Service
195 Internationale Blvd
Glendale Heights, IL 60139
Tel. 630-237-5000
Fax. 630-237-5011
Toll Free Customer Service
and Technical Support
800-992-4657
Toll Free Fax
888-246-5732
81883XPage 2 of 12
OPERATING AND SAFETY PRECAUTIONS
READ, UNDERSTAND, AND FOLLOW THIS INFORMATION TO AVOID INJURY AND PROPERTY DAMAGE.
EXCESSIVE AIR PRESSURE
STATIC SPARK
HAZARDOUS MATERIALS
HAZARDOUS PRESSURE
WARNING EXCESSIVE AIR PRESSURE. Can cause person-
al injury, pump damage or property damage.
S Do not exceed themaximum inlet air pressure as stated on the
pump model plate.
S Besurematerial hoses andother components are able towith-
stand fluidpressuresdevelopedby thispump.Checkall hoses
for damage or wear. Be certain dispensing device is clean and
in proper working condition.
WARNING STATICSPARK.Cancauseexplosion resulting in
severe injury or death. Ground pump and pumping system.
S Sparks can ignite flammable material and vapors.
S The pumping system and object being sprayed must be
groundedwhen it is pumping, flushing, recirculating or spray-
ing flammable materials such as paints, solvents, lacquers,
etc. or used in a location where surrounding atmosphere is
conducive to spontaneous combustion. Ground the dispens-
ing valve or device, containers, hoses and any object to which
material is being pumped.
S 818831 Groundable Acetal pumps: Use the pump grounding
screwprovided. Connect a 12 ga. (min.) wire (kit is included) to
a good earth ground source.
S Secure pump, connections and all contact points to avoid
vibration and generation of contact or static spark.
S Consult local building codes and electrical codes for specific
grounding requirements.
S Aftergrounding,periodicallyverifycontinuityofelectricalpath
to ground. Test with an ohmmeter from each component (e.g.,
hoses, pump, clamps, container, spray gun, etc.) to ground to
insure continuity. Ohmmeter should show 0.1 ohms or less.
S Submerse the outlet hose end, dispensing valve or device in
thematerial beingdispensed if possible. (Avoid freestreaming
of material being dispensed.)
S Use hoses incorporating a static wire.
S Use proper ventilation.
S Keep inflammables away from heat, open flames and sparks.
S Keep containers closed when not in use.
WARNING Pump exhaust may contain contaminants. Can
causesevere injury.Pipeexhaustawayfromworkareaandper-
sonnel.
S In the event of a diaphragm rupture, material can be forced out
of the air exhaust muffler.
S Pipe the exhaust to a safe remote location when pumping haz-
ardous or inflammable materials.
S Use agrounded 3/8minimum i.d. hosebetween the pumpand
the muffler.
WARNING HAZARDOUS PRESSURE. Can result in serious
injury or property damage. Do not service or clean pump,
hoses or dispensing valve while the system is pressurized.
S Disconnect air supply line and relieve pressure from the sys-
tem by opening dispensing valve or device and / or carefully
and slowly loosening and removing outlet hose or piping from
pump.
WARNING HAZARDOUSMATERIALS.Cancauseserious in-
juryorpropertydamage.Donot attempt to return apump to the
factory or service center that contains hazardous material.
Safe handling practices must comply with local and national
laws and safety code requirements.
S Obtain Material Safety Data Sheets on all materials from the
supplier for proper handling instructions.
CAUTION Verify the chemical compatibility of the pump
wetted parts and the substance being pumped, flushed or re-
circulated. Chemical compatibility may change with tempera-
ture and concentration of the chemical(s) within the
substances being pumped, flushed or circulated. Consult
Bink’s representative for information on chemical compatibili-
ty.
CAUTION Maximum temperatures are based on mechani-
cal stress only. Certain chemicals will significantly reduce
maximum safe operating temperature. Consult Bink’s repre-
sentative for information on chemical compatibility. 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, understand it’s limita-
tions, and wear safety goggles / equipment when required.
CAUTION Donot use the pump for the structural support of
the piping system. Be certain the system components are
properly supported to prevent stress on the pump parts.
S Suctionanddischargeconnectionsshouldbe flexibleconnec-
tions (suchashose), not rigidpiped, andshouldbecompatible
with the substance being pumped.
CAUTION Prevent unnecessary damage to the pump. Do
notallowpumptooperatewhenoutofmaterial for longperiods
of time.
S Disconnect air line from pump when system sits idle for long
periods of time.
CAUTION UseonlygenuineBink’s replacement parts to as-
sure compatible pressure rating and longest service life.
NOTICE Install the pump in the vertical position. The
pumpmay not prime properly if the balls do not check by grav-
ity upon start-up.
NOTICE Re-torque all fasteners before operation. Creep
of housing and gasket materials may cause fasteners to loos-
en.Re-torqueall fasteners to insureagainst fluidorair leakage.
WARNING
CAUTION
NOTICE
= Hazards or unsafe practices which could
result in severe personal injury, death or
substantial property damage.
= Hazards or unsafe practices which could
result in minor personal injury, product
or property damage.
= Important installation, operation or
maintenance information.
Page 3 of 1281883X
GENERAL DESCRIPTION
The Bink’s DiaphragmPump offers high volume delivery even at low air
pressure.Bink’spumps featurestall resistant design,modular airmotor /
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, ball 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 pres-
sure and will stop cycling once maximum line pressure is reached (dis-
pensing device closed) and will resume pumping as needed.
Models 818831 and 818836: The Acetal material used in these pumps
containsStainlessSteel fibers. It’s conductivity allows it to be connected
to a suitable ground. A ground screw and ground wire kit is provided for
this.
AIR AND LUBE REQUIREMENTS
S Usea filter capableof filteringout particles larger than50micronson
theair 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.
OPERATING INSTRUCTIONS
S Always flush the pump with a solvent compatible with the material
being pumped if thematerial being pumped is subject to setting up
when not in use for a period of time.
S Disconnect the air supply from thepump if it is to be inactive for a few
hours.
S The outletmaterial volume is governed not only by the air supply but
also by thematerial supply available at the inlet. Thematerial supply
tubing should not be too small or restrictive. Be sure not to use hose
which might collapse.
S 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.
S Secure the diaphragm pump legs to a suitable surface to insure
against damage by vibration.
MAINTENANCE
S Provide a clean work surface to protect sensitive internal moving
parts from contamination from dirt and foreignmatter during service
disassembly and reassembly.
S Keep good records of service activity and include pump in preven-
tive maintenance program.
S Service Kits are available to service three separate Diaphragm
Pump functions: 1. AIR SECTION, 2. DIAPHRAGM SECTION, 3.
BALL and SEAT SECTION.
S SantopreneR is a registered trademark of Monsanto Company, licensed to Advanced Elastomer Systems, L.P. S Key-LubeR is a registered trademark of Key IndustriesS
81883XPage 4 of 12
PARTS LIST / 81883X FLUID SECTION
L 862040 Diaphragm Repair Kits include: Item # 2 7 8 19 20 33 Grease Packet Operator’s Manual
(standard for models 818830, 818837) Qty 1 2 2 4 2 4 1 1
~ 862041 Diaphragm Repair Kits include: Item # 2 3 7 19 20 33 64 Grease Packet Operator’s Manual
(standard for models 818834, 818838) Qty 1 2 2 4 2 4 2 1 1
V 862045 Ball and Seat Repair Kits include: Item # 19 20 21 22 Grease Packet Operator’s Manual
(stainless steel ball and seat) Qty 4 2 4 4 1 1
z 862046 Ball and Seat Repair Kits include: Item # 19 20 21 22 Grease Packet Operator’s Manual
(optional PTFE ball & stainless steel seat) Qty 4 2 4 4 1 1
Y 862047 Ball and Seat Repair Kits include: Item # 19 20 21 22 Grease Packet Operator’s Manual
(optional Santoprene ball & stainless steel seat) Qty 4 2 4 4 1 1
WETTED COMMON PARTS
818830, 818834, 818837, 818838
Item Description (size in inches) Qty Part No. [Mtl]
1 Connecting Rod (1) 873035 [SS]
~L 2 O Ring (3/32 x 5/8 o.d.) (1) [B]
~ 3 O Ring (1/16 x 9/16 o.d.)
(models 818834, 818838)
(2) [T]
5 Diaphragm Washer (2 o.d.) (2) 873403 [GFN]
6 Diaphragm Washer (2 o.d.) (2) 873287 [SS]
~L 7 Diaphragm (2) [T]
L 8 Diaphragm (models 818830, 818837) (2) [SP]
12 Washer (models 818837, 818838) (4) [A]
14 Flange Screw (5/16 - 18 x 3/4) (2) [SS]
15 Fluid Cap (models 818830, 818834) (2) 873288 [SS]
Fluid Cap (models 818837, 818838) (2) 873427 [A]
YzV~L 19 O Ring (3/32 x 1-5/16 o.d.) (4) [T]
YzV 21 Seat (4) [SS]
V 22 Ball (3/4 diameter) (4) [SS]
z Ball (3/4 diameter) (4) [T]
Y Ball (3/4 diameter) (4) [SP]
26 Flange Screw (5/16 - 18) (8) [SS]
43 Ground Strap (1) [SS]
57 Ground Kit Ass’y (not shown) (1) 873067
60 Manifold, Inlet (818830, 818834) (1) 873037 [SS]
Manifold, Inlet (818837, 818838) (1) 873425 [A]
61 Manifold, Outlet (818830, 818834) (1) 873036 [SS]
Manifold, Outlet (818837, 818838) (1) 873426 [A]
62 Flange Nut (5/16 - 18) (16) [SS]
63 Pipe Plug (1/2 - 14 N.P.T.)
(models 818830, 818834) (1) 873430 [SS]
(models 818837, 818838) (1) 873431 [C]
~ 64 O Ring (.210 x 4.576 o.d.)
(models 818834, 818838)
(2) [U]
MATERIAL CODE
[A] = Aluminum
[B] = Nitrile
[C] = Carbon Steel
[GFN] = Glass Filled Nylon
[SP] = Santoprene
[SS] = Stainless Steel
[T] = PTFE
[U] = Polyurethane
CROSS SECTION / 818830, 818834
Figure 2
Page 5 of 1281883X
PARTS LIST / 81883X FLUID SECTION
LUBRICATION / SEALANTS
Figure 3
FOR THE
AIR MOTOR SECTION
SEE PAGES 8 & 9
COLOR CODE
DIAPHRAGM BALL
MATERIAL COLOR COLOR
SANTOPRENE Tan Tan
PTFE White White
. TORQUE REQUIREMENTS ,
NOTE: DO NOT OVERTIGHTEN FASTENERS
(14) Bolt 95 - 105 in. lbs (10.7 - 11.9 Nm).
(26) Bolts 50 - 60 in. lbs (5.6 - 6.8 Nm).
(62) Fluid cap nuts 50 - 60 in. lbs (5.6 - 6.8 Nm), / alternately and
evenly, then re-torque after initial run-in.
` Apply pipe sealant to threads.
Apply Key-Lube to all O rings, U cups and mating parts.
19
21
22
19
21
22
62
15
61
26,
63`43
14,
12
3
64 7
5
6
8 7
View of model 818830 and 818837 diaphragm configuration.
AIR SIDE
SANTOPRENE
(TAN)
FLUID SIDE
PTFE
(WHITE)
12
12
(818830, 818834) 61
(818837, 818838) 61
60 (818837, 818838)
60 (818830, 818834)
81883XPage 6 of 12
PARTS LIST / 81883X FLUID SECTION
L 862040 Diaphragm Repair Kits include: Item # 2 7 8 19 20 33 Grease Packet Operator’s Manual
(standard for models 818833, 818836) Qty 1 2 2 4 2 4 1 1
~ 862041 Diaphragm Repair Kits include: Item # 2 3 7 19 20 33 64 Grease Packet Operator’s Manual
(standard for models 818831) Qty 1 2 2 4 2 4 2 1 1
s 862042 Diaphragm Repair Kits include: Item # 2 7 19 20 33 Grease Packet Operator’s Manual
(standard for models 818832, 818835) Qty 1 2 4 2 4 1 1
V 862045 Ball and Seat Repair Kits include: Item # 19 20 21 22 Grease Packet Operator’s Manual
(stainless steel ball and seat) Qty 4 2 4 4 1 1
(standard for models 818831, 818833 and 818836, optional for all others)
z 862046 Ball and Seat Repair Kits include: Item # 19 20 21 22 Grease Packet Operator’s Manual
(PTFE ball & stainless steel seat) Qty 4 2 4 4 1 1
(optional for all models)
Y 862047 Ball and Seat Repair Kits include: Item # 19 20 21 22 Grease Packet Operator’s Manual
(optional Santoprene ball & stainless steel seat) Qty 4 2 4 4 1 1
(standard for models 818832 and 818835, optional for all others)
WETTED COMMON PARTS / 818831, 818832, 818833, 818835, 818836
818831 818832 818833 818835 818836
Item Description (size in inches) Qty Part No. [Mtl] Part No. [Mtl] Part No. [Mtl] Part No. [Mtl] Part No. [Mtl]
1 Connecting Rod (1) 873035 [SS] 873035 [SS] 873035 [SS] 873035 [SS] 873035 [SS]
sL~ 2 O Ring (3/32 x 5/8 o.d.) (1) [B] [B] [B] [B] [B]
~ 3 O Ring (1/16 x 9/16 o.d.) (2) [T] - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
5 Diaphragm Washer (2) 873403 [GFN] 873403 [GFN] 873403 [GFN] 873403 [GFN] 873403 [GFN]
6 Diaphragm Nut (5/16 - 18) (2) 873289 [D] 873290 [P] 873290 [P] 873290 [P] 873289 [D]
sL~ 7 Diaphragm (2) [T] [SP] [T] [SP] [T]
L 8 Diaphragm (models 818833, 818836) (2) - - - - - - - - - - - - - - - [SP] - - - - - - - - [SP]
15 Fluid Cap (Includes items 26 & 124) (2) 873291 [GA] 873292 [P] 873292 [P] 873292 [P] 873291 [GA]
YszVL~ 19 O Ring (3/32 x 1-5/16 o.d.) (4) [T] [E] [T] [E] [T]
YszVL~ 20 O Ring (3/32 x 1-1/8 o.d.) (2) [T] [E] [T] [E] [T]
YzV 21 Seat (4) [SS] [SS] [SS] [SS] [SS]
V 22 Ball (3/4 diameter) (4) [SS] [SS] [SS] [SS] [SS]
z Ball (3/4 diameter) (4) [T] [T] [T] [T] [T]
Y Ball (3/4 diameter) (4) [SP] [SP] [SP] [SP] [SP]
26 Bolt (5/16 - 18 x 1-1/2) (8) [SS] [SS] [SS] [SS] [SS]
41 Ball Cage (4) 873295 [D] 873296 [P] 873296 [P] 873296 [P] 873295 [D]
43 Ground Strap (1) [SS] - - - - - - - - - - - - - - - - - - - - - - - - [SS]
57 Ground Kit Assembly (not shown) (1) 873067 - - - - - - - - - - - - - - - - - - - - - - - - 873067
60 Manifold, Inlet (Bottom) (1) 873412 [GA] 873234 [P] 873234 [P] 873234 [P] 873412 [GA]
61 Manifold, Outlet (Top) (1) 873138 [GA] 873235 [P] 873235 [P] 873235 [P] 873138 [GA]
62 Flange Nut (5/16 - 18) (24) - - - - - - - - [SS] [SS] [SS] - - - - - - - -
Flange Nut (5/16 - 18) (24) [SS] - - - - - - - - - - - - - - - - - - - - - - - - [SS]
63 Pipe Plug (1/2 - 14 N.P.T. x 9/16) (6) 873429 [D] 873428 [P] 873428 [P] 873428 [P] 873429 [D]
~ 64 O Ring (.210 x 4.576 o.d.) (2) [U] - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
MATERIAL CODE
[B] = Nitrile [P] = Polypropylene
[D] = Acetal [SP] = Santoprene
[E] = E.P.R. [SS] = Stainless Steel
[GA] = Groundable Acetal [T] = PTFE
[GFN] = Glass Filled Nylon [U] = Polyurethane
Page 7 of 1281883X
PARTS LIST / 81883X FLUID SECTION
62,
15
21
20
22
41
19
41
22
21
19
26
7 6,352
43
62 ,
64 124 (Pg. 8)
LUBRICATION / SEALANTS
Figure 4
FOR THE
AIR MOTOR SECTION
SEE PAGES 8 & 9
. TORQUE REQUIREMENTS ,
NOTE: DO NOT OVERTIGHTEN FASTENERS
(6) Diaphragm nut 95 - 105 in. lbs (10.7 - 11.9 Nm).
(29, 62) Fluid caps / Manifold nuts 50 - 60 in. lbs (5.6 - 6.8 Nm), /
alternately and evenly, then re-torque after initial run-in.
(63) Plugs 25 in. lbs (2.8 Nm) maximum.
Apply Keylube to all O rings, U cups and mating parts.
1
8 7
View of model 818833 and 818836 diaphragm configuration.
AIR SIDE
SANTOPRENE
(TAN)
FLUID SIDE
PTFE
(WHITE)
COLOR CODE
DIAPHRAGM BALL
MATERIAL COLOR COLOR
SANTOPRENE Tan Tan
PTFE White White
63,
60
61
63,
62,
81883XPage 8 of 12
PARTS LIST / 81883X AIR MOTOR SECTION
(n) Indicates parts included in 862004 Air Section Repair Kit.
Item Description (size in inches) Qty Part No. [Mtl] Item Description (size in inches) Qty Part No. [Mtl]
101 Motor Body (1) 873297 [P]
n102 O Ring (3/32 x 1 o.d.) (2) [B]
103 Sleeve (1) 873023 [Bz]
104 Snap Ring (13/16) (2) [C]
111 Spool (1) 873298 [D]
118 Pilot Rod (818831, 818834, 818835, 818838) (1) 873011 [C]
(818830, 818832, 818833, 818836, 818837) (1) 873000 [C]
n119 O Ring (1/8 x 3/4 o.d.) (4) [B]
120 Spacer (3) 873280 [Z]
n122 Snap Ring (1/2) (2) [C]
124 Stud (5/16 - 18 x 1-1/2)
(818831, 818832, 818833, 818835, 818836)
(8) [SS]
129 Muffler (1) 873299 [P]
n130 Gasket (1) [SY]
131 Bolt (5/16 - 18 x 1-1/4)
(models 818830, 818834, 818837, 818838) (16) [SS]
(818831, 818832, 818833, 818835, 818836) (8) [SS]
n132 Gasket (1) [B]
133 Washer (9/32 i.d.) (4) [SS]
134 Cap Screw (1/4 - 20 x 5) (4) [SS]
135 Valve Block (1) 873300 [P]
136 Plug (1) 873301 [D]
n137 O Ring (3/32 x 1-1/2 o.d.) (1) [B]
n138 U Cup Packing (1/8 x 1 o.d.) (1) [U]
n139 U Cup Packing (1/8 x 1-7/16 o.d.) (1) [B]
n140 Valve Insert (1) 873038 [CK]
n141 Valve Plate (1) 873039 [CK]
142 Washer (2) 873302 [Z]
143 Plate (2) 873303 [SS]
n Keylube, O Ring Lubricant (1)
MATERIAL CODE
[B] = Nitrile [D] = Acetal [U] = Polyurethane
[Bz] = Bronze [P] = Polypropylene [Z] = Zinc
[C] = Carbon Steel [SS] = Stainless Steel
[CK] = Ceramic [SY] = Syn-Seal
DIAPHRAGM PUMP SERVICE
GENERAL SERVICE NOTES:
S Inspect and replace old parts with new parts as necessary. Look for
deep scratches on metallic surfaces, and nicks or cuts in O rings.
S 7/16 wrench, 1/2 wrench, 7/16 socket, 1/2 socket, torque
wrench (measuring inch pounds), O ring pick.
FLUID SECTION DISASSEMBLY
1. Remove (61) top manifold.
2. Remove (19) O rings, (21) seats and (22) balls.
3. Remove (60 or 35) bottom manifold.
4. Remove (19) O rings, (21) seats and (22) balls.
5. Remove (15) fluid caps.
6. Remove (14) bolt, (6) diaphragmwasher, (7 / 8) diaphragms and (5)
washer.
7. Remove (1) connecting rod from air motor.
8. Carefully remove remaining (14) bolt, (6) diaphragm washer, or (7 /
8) diaphragms and (5) washer from (1) connecting rod. Do not mar
surface of connecting rod.
9. Remove (2) O ring from connecting rod.
FLUID SECTION REASSEMBLY
S Reassemble in reverse order.
S Lubricate (1) connecting rodand (2) O ringwithKey-Lubeorequiv-
alent O ring lubricant.
S Install (5) washers with i.d. chamfer toward diaphragm.
S When replacing PTFE diaphragms, install the (8) Santoprene dia-
phragm behind the PTFE diaphragm.
S Before tightening (39) nut on (38) carriage bolts on (36) swivels, at-
tach themanifold / swivel assembly to the (15) fluid caps. Rotate the
(36) swivel to the desired position and tighten each of the (39) nuts
approximately 8 - 9 turns, then finish tightening the (39) nuts.
Page 9 of 1281883X
PARTS LIST / 81883X AIR MOTOR SECTION
PILOT VALVE
MAJOR VALVE
Figure 5
. TORQUE REQUIREMENTS ,
NOTE: DO NOT OVERTIGHTEN FASTENERS.
(134) Torque to 15 - 20 in. lbs (1.7 - 2.3 Nm), wait 10 minutes, then
re-torque to 15 - 20 in. lbs (1.7 - 2.3 Nm).
136
129130
102103101131
132141140
111
135
137
139
138
118
142
142 122
104143
119
119
119
119
120
120
120
133
. 134
AIR MOTOR SECTION SERVICE
Service is divided into two parts - 1. Pilot Valve, 2. Major Valve.
S Air Motor Section Service is continued from Fluid Section repair.
PILOT VALVE DISASSEMBLY
1. Remove (122 and 104) snap rings.
2. Remove (143) plates.
3. Remove (103) sleeve and (102) O rings.
4. Remove (118) pilot rod, (142) washers, (119) O rings and (120)
spacers from (101) center body.
PILOT VALVE REASSEMBLY
1. Assemble (119) O rings, (120) spacersand (142)washerson (118)
pilot rod.
2. Insert the stack into the (101) body. Sleeve (103)may be used to as-
sist pressing stack into body.
3. Install (103) sleeve and (102) O rings into (101) body.
4. Install (143) plates and (122 and 104) snap rings.
MAJOR VALVE DISASSEMBLY
1. Remove (129) muffler and (130) gasket.
2. Pull (135) valve block assembly from (101) motor body.
3. Remove (134) bolts, (133) washers and (132) gasket from (135)
valve block.
4. Remove (141) valve plate and (140) valve insert.
5. Remove (136) plug and (111) spool.
MAJOR VALVE REASSEMBLY
1. Install new (139 and 138) 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) plug, insert plug into (135) valve block.
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 to-
ward (132) gasket.
5. Replace (132) gasket and install valve block assembly on (101)
body.
81883XPage 10 of 12
TROUBLE SHOOTING
Product discharged from air exhaust.
S Check for diaphragm rupture.
S Check tightness of (6) diaphragm nut or (14) bolt.
Air Bubbles in product discharge.
S Check connections of suction plumbing.
S Check band clamps on intake manifold (non-metallic models).
S Check O rings between intake manifold and fluid caps.
S Check tightness of (6) diaphragm nut or (14) bolt.
Pump blows air out main exhaust when stalled on either stroke.
S Check U cups on (111) spool in major valve.
S Check (141) valve plate and (140) insert for wear.
S Check (103) sleeve and (2) O ring on diaphragm connecting rod.
S Check (119) O rings on (118) pilot rod for wear.
Low output volume.
S Check air supply.
S Check for plugged outlet hose.
S For the pump to prime itself, it must be mounted in the vertical posi-
tion so that the balls will check by gravity.
S Check for pump cavitation - suction pipe should be 1/2 minimum or
larger if high viscosity fluids are being pumped. Suction hose must
be non-collapsible type, capable of pulling a high vacuum.
S Check all joints on intakemanifolds and suction connections. These
must be airtight.
S Check for sticking or improperly seating check valves.
S If pump cycles at a high rate or runs erratically, check (119) piston
O rings for wear.
DIMENSIONAL DATA / 818830, 818834, 818837, 818838
Dimensions shown are for reference only, they are shown in inches and millimeters (mm).
4-7/8
(124 mm)
11-5/8
(295 mm)
11
(279 mm)
5/16 Slot (8 mm)
7-11/16
(195 mm)
6
(152 mm)
5-1/2
(140 mm)
2
(51 mm)
6-1/8
(156 mm)
Material Outlet
1/2 - 14 NPTF - 1
Air Inlet
1/4 - 18 PTF SAE Short
Material Inlet
1/2 - 14 NPTF - 1
6-7/16
(164 mm)
Figure 6
Page 11 of 1281883X
DIMENSIONAL DATA / 818831, 818832, 818833, 818835, 818836
4-7/8
(124 mm)
11-5/16
(288 mm)
6
(152 mm)
5-1/2
(140 mm)
6-7/16
(164 mm)
Dimensions shown are for reference only, they are shown in inches and millimeters (mm).
10-1/16
(256 mm)
5/16 Slot (8 mm)
7-1/2
(191 mm)
2
(51 mm)
6-1/8
(156 mm)
Material Outlet
1/2 - 14 NPTF - 1
Air Inlet
1/4 - 18 NPT
Material Inlet
1/2 - 14 NPTF - 1
Figure 7
9-11/32
(237 mm)
CROSS SECTION
Figure 8
818831, 818832, 818833, 818835, 818836 818837, 818838
PN 876012
81883XPage 12 of 12
