Binks MX1231 Series User manual

77-2924
page 1 of 24
MX1231 Bare Pump
Assemblies
AX140S Air Motor Assembly
pages 8-14
FX12 Fluid Pump Assembly
pages 15-22
Models: MX1231PL (PTFE/LEATHER CHEVRONS), MX1231PP (PTFE CHEVRONS),
MX1231PU (PTFE/UHMW CHEVRONS), MX1231UC (UHMW U-CUP)
Patent 7,603,855
SPECIFICATIONS
Ratio: 31:1
Maximum air inlet pressure: 8 bar [116 psi]
Maximum fluid pressure: 248 bar [3596 psi]
Displacement per cycle: 72 cc [2.4 oz]
Output @ 60 cycles/min: 4.3 L /m [1.2 gal/m]
Air consumption @ 20 cycles/min: 498 LPM [17.6 SCFM]
Maximimum recommended
continuous cycle rate: 20 cycles/min
Air inlet connection: 3/8" BSP(f)
Fluid inlet connection: 3/4" NPS(m)
Fluid outlet connection: 3/8" BSP(m) and 3/8" NPS(m)
Sound level: 97.3 dB
Weight: 15.6 kg [34.4 lbs]

77-2924
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In this part sheet, the words WARNING, CAUTION and NOTE are used to emphasize important safety information as follows:
Read the following warnings before using this equipment.
READ THE MANUAL
Before operating finishing equipment, read and
understand all safety, operation and maintenance
information provided in the operation manual.
AUTOMATIC EQUIPMENT
Automatic equipment may start suddenly without
warning.
INSPECT THE EQUIPMENT DAILY
Inspect the equipment for worn or broken parts
on a daily basis. Do not operate the equipment
if you are uncertain about its condition.
NEVER MODIFY THE EQUIPMENT
Do not modify the equipment unless the
manufacturer provides written approval.
KNOW WHERE AND HOW TO SHUT OFF THE
EQUIPMENT IN CASE OF AN EMERGENCY
PRESSURE RELIEF PROCEDURE
Always follow the pressure relief procedure in the
equipment instruction manual.
NOISE LEVELS
The A-Weighted sound level of pumping
equipment and spray guns may exceed 85 dB (A)
depending on the set-up being used. Details of
actual noise levels are available on request. It is
recommended that ear protection is worn at all
times when spraying while pump is operating.
HIGH PRESSURE CONSIDERATION
High pressure can cause serious injury. Relieve all
pressure before servicing. Spray from the spray
gun, hose leaks, or ruptured components can
inject fluid into your body and cause extremely
serious injury.
WEAR SAFETY GLASSES
Failure to wear safety glasses with side shields
could result in serious eye injury or blindness.
DE-ENERGIZE, DEPRESSURIZE, DISCONNECT
AND LOCK OUT ALL POWER SOURCES DURING
MAINTENANCE
Failure to De-energize, disconnect and lock out
all power supplies before performing equipment
maintenance could cause serious injury or death.
OPERATOR TRAINING
All personnel must be trained before operating
finishing equipment.
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equip ment to
rupture, malfunction, or start unexpectedly and
result in serious injury.
KEEP EQUIPMENT GUARDS IN PLACE
Do not operate the equipment if the safety
devices have been removed.
PROJECTILE HAZARD
You may be injured by venting liquids or gases
that are released under pressure, or flying debris.
PINCH POINT HAZARD
Moving parts can crush and cut. Pinch points are
basically any areas where there are moving parts.
STATIC CHARGE
Fluid may develop a static charge that must be
dissipated through proper grounding of the
equipment, objects to be sprayed and all other
electrically conductive objects in the dispensing
area. Improper grounding or sparks can cause a
hazardous condition and result in fire, explosion
or electric shock and other serious injury.
NOTE
Important installation, operation or
maintenance information.
CAUTION
Hazards or unsafe practices which could
result in minor personal injury, product
or property damage.
!
WARNING
Hazards or unsafe practices which could
result in severe personal injury, death or
substantial property damage.
!
Warning
!
FOR FURTHER SAFETY INFORMATION REGARDING BINKS AND DEVILBISS EQUIPMENT,
SEE THE GENERAL EQUIPMENT SAFETY BOOKLET (77-5300).
IT IS THE RESPONSIBILITY OF THE EMPLOYER TO PROVIDE THIS INFORMATION
TO THE OPERATOR OF THE EQUIPMENT.
PACEMAKER WARNING
You are in the presence of magnetic fields which
may interfere with the operation of certain
pacemakers.

77-2924
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Warning
HIGH PRESSURE CAN CAUSE SERIOUS INJURY IF EQUIPMENT IS INSTALLED OR USED INCORRECTLY—
READ, UNDERSTAND, AND OBSERVE ALL WARNINGS AND INSTRUCTIONS IN THIS MANUAL.
INSTALL, OPERATE OR SERVICE THIS EQUIPMENT ONLY AFTER
ALL INSTRUCTIONS ARE CLEARLY UNDERSTOOD.
It is the responsibility of the employer to place this information into the hands of the operator.
!
CAUTION
Hazards or unsafe practices which could
result in minor personal injury, product
or property damage.
!
WARNING
Hazards or unsafe practices which could
result in severe personal injury, death or
substantial property damage.
!
NOTE
Important installation, operation or
maintenance information.
AVOID STATIC SPARKING
1. Use Binks NO-WIRE conductive hose
in all airless spraying operations. Be
sure the gun and hose have continuity.
2. Make sure the pump is grounded.
NEVER operate the unit when it is on
a non-grounded platform.
3. When flushing or cleaning with a
combustible solvent, always use an
open metallic container for receiving
the waste solvent. Ground the solvent
receptacle.
4. ALWAYS remove spray tip when
flushing the system. Operate the pump
at the lowest possible pressure.
Bonding Wire,
Gun To Solvent Container
Conductive Hose
To Airless Pump
Open
Metallic
Waste Solvent
Container,
Grounded
GENERAL WARNINGS
1. NEVER leave a pressurized sprayer
unattended.
2. Periodically inspect all hoses for leaks
and/or abrasions and tighten all
connections before use. DO NOT
ATTEMPT TO REPAIR a defective
hose. REPLACE it with another
conductive hose.
3. ALWAYS relieve pressure in the
system by turning bypass valve to
BYPASS or triggering spray gun
before disassembly of any component
parts.
CAUTION
Never store de-ionized, distilled, reverse
osmosis or any pure grade of water in the
pump. These fluids may cause corrosion.
NOTE
BINKS is not responsible for misapplica-
tion of pumps. Consult your BINKS repre-
sentative for application assistance.
REPLACEMENT PARTS
The pump is designed to use authorized
parts only. When using this pump with
parts that do not comply with the
minimum specifications and safety
devices of Binks, the user assumes all
risks and liabilities.
WARNING
EXCESSIVE AIR PRESSURE
Can cause personal injury, pump dam-
age or property damage. Do not exceed
maximum inlet air pressure as stated on
motor model plate.
!
NOTE
Be sure that all fluids, solvents and
fillers to be used are chemically and
physically compatible with wetted
parts in the pump. Consult your BINKS
representative for pump materials of
constructions and compatibility infor-
mation. Consult the fluid manufacture
for information regarding the fluids to
be used.

77-2924
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HAZARD CAUSE SAFEGUARDS
EXPLOSION STATIC ELECTRICITY
Use of this equipment in
a potentially explosive
atmosphere.
Vapors from flammable
liquids can catch fire
or explode from static
electricity discharges.
1. If installing this equipment in a potentially explosive
atmosphere, check the ATEX equipment category and
temperature ratings meet the requirements for the
zoned area.
2. Check electrical continuity of the air supply to earth —
should be no greater than 106 .
3. Electrically bond all metallic equipment to earth.
Should be no greater than 1 .
SPECIAL
CONDITIONS
FOR SAFE USE
REQUIRED
BY ATEX
CERTIFICATION
Over pressurization of
equipment can cause
equipment failure or injury.
Use lubricating medium
resistant to carburisation.
Improper operation or
maintenance may create a
hazard.
1. Do not exceed the stated maximum working pressures
and motor speed as specified in this manual.
2. Only a suitably approved static dissipating or
conductive air supply hoses shall be attached to the
equipment and terminated to the air supply.
3. Air supplies (compressors, etc.) shall be sited in a non-
hazardous area with a filter on the air intake system to
prevent the ingress of dust or similar foreign material
into the parts where compression takes place.
4. Use lubricating medium resistant to carburisation and
has an auto ignition temperature of more than 185ºC
for T4 equipment.
5. User shall ensure all metallic parts of the equipment
are suitably bonded to earth. Should be no greater
than 1 .
EC Declaration of Conformity
We: ITW Finishing UK, Ringwood Rd., Bournemouth, Dorset, BH11 9LH, UK
As the manufacturer of the items listed below:
Piston Pumps MX412 & MX432 MX1212 & MX1231
Declare, under our sole responsibility, that, the equipment to which this document relates is in conformity with the fol-
lowing standards or other normative documents:
EN 13463-1:2009, EN 13463-5:2005, EN 982:1996 + A1:2008, EN 983:1996 + A1:2008 and EN 12621:2006
And thereby conform to the protection requirements of Council Directive 98/37/EC relating to Machinery Safety Directive and
council Directive 94/9/EC relating to Equipment and Protective Systems intended for use in Potentially Explosive
Atmospheres;
CE Ex 2 II Gc T4
Issued on: 21st January 2010
Authorized by:
General Manager
Technical file lodged with;
TRL Compliance Ltd (Notified Body 0891)
Moss View
Nipe Lane
Up Holland
WN8 9PY, UK

77-2924
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MX1231 BARE PUMP ASSEMBLIES
ITEM
NO. PART NUMBER DESCRIPTION MX1231PL QTY.
MX1231PP
QTY.
MX1231PU
QTY.
MX1231UC
QTY.
1 AX140S AX140S AIR MOTOR ASSEMBLY 1 1 1 1
2 0115-010114 □ SOCKET HEAD CAP SCREW 3 3 3 3
3 0115-010113 □ LOCKING CLIP 1 1 1 1
4 01115-010135 PUMP TIE ROD 3 3 3 3
5
FX12PL FX12 FLUID PUMP ASSEMBLY (PTFE/LEATHER) 1 - - -
FX12PP FX12 FLUID PUMP ASSEMBLY (PTFE) - 1 - -
FX12PU FX12 FLUID PUMP ASSEMBLY (PTFE/UHMW) - - 1 -
FX12UC FX12 FLUID PUMP ASSEMBLY (U-CUPS) - - - 1
6 0114-016243 GROUND WIRE KIT 1 1 1 1
• Part not sold separately. Available in repair kits: 0115-010305, 0115-010307, 0115-010309 & 0115-010387.
N Part not sold separately. Available in 0115-010300 AX140 Hardware kit.

77-2924
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MX1231 BARE PUMP ASSEMBLIES – MAINTENANCE
MAINTENANCE SYMBOLS
ITEM NUMBER
MAINTENANCE ORDER
(Reverse for assembly)
PETROLEUM JELLY
THREAD SEALANT
(PTFE tape)

77-2924
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MX1231 BARE PUMP ASSEMBLIES – TROUBLESHOOTING
PROBLEM CAUSE SOLUTION
Pump will not start No compressed air.
Spray tip is blocked.
Check compressed air supply.
Clean or replace the spray tip.
Erratic operation of air
motor, air motor stops
Worn poppet assemblies.
Worn or dirty spool and sleeve
assembly.
Replace the poppet assemblies.
Clean or replace the spool and sleeve
assembly, as necessary.
Continuous air leak
from the exhaust
Worn poppet assemblies.
Worn piston seal.
Worn diaphragm.
Replace poppet assemblies.
Replace piston seal.
Replace diaphragm.
Material in solvent cup Worn or dirty upper packings. Replace or clean upper packings as
necessary.
Pump does not stop
on the
down stroke
Worn or dirty lower ball check. Replace or clean the parts as necessary.
Pump does not stop on
the up stroke
Worn or dirty upper ball check.
Worn or dirty lower packings.
Replace or clean the parts as necessary.
Pump runs erratically Blocked siphon kit.
Blocked inlet filter or strainer.
Low material level.
Replace or clean the siphon kit.
Replace or clean the inlet filter or strainer.
Replace or refill material container.
Pump runs, with no
output
Loose connection in between
pump and siphon kit.
Stuck lower ball.
Check that all connections are tight.
Replace or clean the parts as necessary.

77-2924
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AX140S Air Motor Assembly
SPECIFICATIONS
Maximum air inlet pressure: 8 bar [116 psi]
Maximimum recommended
continuous cycle rate: 20 cycles/min
Air consumption @ 20 cycles/min: 498 LPM [17.6 SCFM]
Air inlet connection: 3/8" BSP(f)
Piston Diameter: 140 mm [5.5 in]
Stroke Length: 75 mm [3.0 in]
Patent 7,603,855

77-2924
page 9 of 24
MAINTENANCE SYMBOLS
ITEM NUMBER
MAINTENANCE ORDER
(Reverse order for assembly)
PETROLEUM JELLY/GREASE
THREAD SEALANT
(PTFE tape)
• Parts are included in 0115-010301 Air Motor Repair Kit.
+ Parts are included in 0115-010226 Air Motor Valve Repair Kit.
L Parts are included in 0115-010302 Air Motor Seal Kit.
N Parts are included in 0115-010300 AX140 Hardware Kit.
AX140S AIR MOTOR ASSEMBLY

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AX140S AIR MOTOR ASSEMBLY
ITEM
NO. PART NUMBER DESCRIPTION QTY.
1 0115-010023 EXHAUST COVER SCREEN 1
2 0115-010024 NFLAT HEAD COUNTER SUNK CAP SCREW 4
3 0115-010022 EXHAUST COVER 1
4 0115-010073 NBUTTON HEAD CAP SCREW 8
5 0115-010019 QUICK EXHAUST VALVE CAGE 2
6 0115-010021 •+◊O-RING 2
7 0115-010020 •+ DIAPHRAGM 2
8 0115-010026 NBUTTON HEAD CAP SCREW 4
9 0115-010097 VALVE BLOCK 1
10 0115-010107 NPIPE PLUG 1
11 0114-014774 SAFETY VALVE 1
12 0115-010015 + SPOOL AND SLEEVE ASSEMBLY 1
13 0115-010016 •+ BUMPER 2
14 0115-010017 + MAGNET 2
15 0115-010049 •+◊O-RING 4
16 0115-010018 + VALVE BLOCK END CAP 2
17 0115-010051 •+◊O-RING 4
18 0115-010117 UPPER END CAP MACHINING 1
19 0115-010037 • POPPET ASSEMBLY 2
20 0115-010124 NSOCKET HEAD CAP SCREW 4
21 0115-010133 •◊O-RING 2
22 0115-010116 AX140 CYLINDER 1
23 0115-010127 NLOCKNUT 1
24 0115-010131 WASHER 2
25 0115-010132 •◊O-RING 2
26 0115-010128 AX140 PISTON 1
27 0115-010129 •◊O-RING 1
28 0115-010130 AX140 MOTOR ROD 1
29 0115-010119 LOWER END CAP MACHINING 2
30 0115-010120 • AX140 MOTOR ROD CARTRIDGE ASSEMBLY 1
• Parts are included in 0115-010301 Air Motor Repair Kit.
+ Parts are included in 0115-010226 Air Motor Valve Repair Kit.
L Parts are included in 0115-010302 Air Motor Seal Kit.
N Parts are included in 0115-010300 AX140 Hardware Kit.

77-2924
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AX140S AIR MOTOR ASSEMBLY – MAINTENANCE
MAINTENANCE SYMBOLS
ITEM NUMBER
MAINTENANCE ORDER
(Reverse order for assembly)
PETROLEUM JELLY/GREASE
THREAD SEALANT
(PTFE tape)

77-2924
page 12 of 24
AX140S AIR MOTOR ASSEMBLY – MAINTENANCE
MAINTENANCE SYMBOLS
ITEM NUMBER
MAINTENANCE ORDER
(Reverse order for assembly)
PETROLEUM JELLY/GREASE
THREAD SEALANT
(PTFE tape)

77-2924
page 13 of 24
AX140S AIR MOTOR ASSEMBLY – MAINTENANCE
DANGER
You are in the
presence of magnetic
fields which may
interfere with the
operation of certain
pacemakers.
MAINTENANCE SYMBOLS
ITEM NUMBER
MAINTENANCE ORDER
(Reverse order for assembly)
PETROLEUM JELLY/GREASE
THREAD SEALANT
(PTFE tape)
NOTE
Spool and sleeve assembly (12) is a matched
set and cannot be interchanged with other
spool and sleeve assemblies.
CAUTION
Take care when handling the magnets (14).
Avoid getting magnets in close proximity to
each other. Injury or damage to magnets
may result.
!

77-2924
page 14 of 24
AX140S AIR MOTOR ASSEMBLY – TROUBLESHOOTING
PROBLEM CAUSE SOLUTION
Pump will not start No compressed air.
System is blocked.
Check compressed air supply.
Clear the blockage.
Erratic operation of air
motor, air motor stops
Worn poppet assemblies.
Worn or dirty spool and sleeve
assembly.
Replace poppet assemblies.
Clean or replace the spool and sleeve
assembly as necessary.
Continuous air leak from
the exhaust
Worn poppet assemblies.
Worn piston seal.
Worn diaphragm.
Replace poppet assemblies.
Replace piston seal.
Replace diaphragm.

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FX12 Fluid Pump Assemblies
Models: FX12PL (PTFE/Leather), FX12PP (PTFE), FX121PU (PTFE/U-Cups),
FX12UC (U-Cups)
SPECIFICATIONS
Maximum fluid pressure: 248 bar [3596 psi]
Displacement per cycle: 72 cc [2.4 oz]
Output @ 60 cycles/min: 4.3 L /m [1.1 gal/m]
Fluid inlet size: 3/4" NPS(m)
Fluid outlet size: 3/8" BSP(m) & 3/8" NPS(m)
Weight: 6.4 kg [14.1 lbs]
Wetted parts materials of
construction:
Stainless Steel,
Tungsten Carbide,
Hard Chrome, PTFE,
Polyethylene, Leather

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FX12 FLUID PUMP ASSEMBLIES (CHEVRON PACKINGS)
0115-010269
FX12 CHECK VALVE ASSEMBLY
Models: FX12PL (PTFE/Leather), FX12PP (PTFE), FX12PU (PTFE/UHMW)
MAINTENANCE SYMBOLS
ITEM NUMBER
MAINTENANCE ORDER
(Reverse for assembly)
PETROLEUM JELLY
THREAD SEALANT
(PTFE tape)
• Parts are included in Repair Kits
+ Parts are included in Seal Kits

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FX12 FLUID PUMP ASSEMBLIES (CHEVRON)
ITEM
NO. PART NUMBER DESCRIPTION FX12PL QTY.
FX12PP
QTY.
FX12PU
QTY.
1 0115-010232 FX12 SOLVENT CUP 1 1 1
2 0115-010294 SIGHT GLASS 1 1 1
3 0115-010231 •+ O-RING 1 1 1
4 0115-010141 FX12 UPPER PACKING RETAINER 1 1 1
5 0115-010205 PUMP ADAPTER PLATE 1 1 1
6 0115-010143 •+ FX12 PUMP TUBE SEAL 2 2 2
7 0115-010261 •+ FX12 UPPER PACKING SET (PTFE/LEATHER) 1 - -
7 0115-010263 •+ FX12 UPPER PACKING SET (PTFE) - 1 -
7 0115-010265 •+ FX12 UPPER PACKING SET (PTFE/UHMW) - - 1
8 0115-010152 PACKING SPRING 2 2 2
9 0115-010137 FX12 UPPER PUMP TUBE 1 1 1
10 0115-010269 FX12 CHECK VALVE ASSEMBLY 1 1 1
11 0115-010142 FX12 PUMP ROD (HARD CHROME) 1 1 1
12 0114-014022 • UPPER BALL (10mm) 2 2 2
13 0115-010144 •+ FX12 UPPER SEAT SEAL 3 3 3
14 0115-010145 • FX12 UPPER SEAT 2 2 2
15 0115-010146 FX12 UPPER SEAT RETAINER 1 1 1
16 0115-010262 •+ FX12 LOWER PACKING SET (PTFE/LEATHER) 1 - -
16 0115-010264 •+ FX12 LOWER PACKING SET (PTFE) - 1 -
16 0115-010266 •+ FX12 LOWER PACKING SET (PTFE/UHMW) - - 1
17 0115-010138 FX12 LOWER PUMP TUBE 1 1 1
18 0115-010140 •+ FX12 LOWER BALL CAGE SEAL 1 1 1
19 0115-010139 FX12 LOWER BALL CAGE 1 1 1
20 0114-014025 • LOWER BALL (18mm) 1 1 1
21 0115-010147 •+ FX12 LOWER SEAT SEAL 1 1 1
22 0115-010148 • FX12 LOWER SEAT 1 1 1
23 0115-010149 FX12 FLUID INLET FITTING 1 1 1
24 0115-010258 FLUID OUTLET FITTING 1 1 1
25 0115-010270 • FX12 CHECK VALVE SPRING 1 1 1
26 0115-010271 FX12 CHECK VALVE HOUSING 1 1 1
• Parts are included in Repair Kits 0115-010307 0115-010309 0115-010387
+ Parts are included in Seal Kits 0115-010306 0115-010308 0115-010303
Models: FX12PL (PTFE/Leather), FX12PP (PTFE)

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FX12 FLUID PUMP ASSEMBLIES (U-CUPS)
Model: FX12UC
MAINTENANCE SYMBOLS
ITEM NUMBER
DISASSEMBLY ORDER
(Reverse order for assembly)
PETROLEUM JELLY/GREASE
THREAD SEALANT
(PTFE tape)
0115-010269
FX12 CHECK VALVE ASSEMBLY
• Parts are included in 0115-010305 Repair Kit
+ Parts are included in 0115-010304 Seal Kit

77-2924
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FX12 FLUID PUMP ASSEMBLIES (U-CUPS)
Model: FX12UC
ITEM
NO. PART NUMBER DESCRIPTION QTY.
1 0115-010232 FX12 SOLVENT CUP 1
2 0115-010294 SIGHT GLASS 1
3 0115-010231 •+O-RING 1
4 0115-010230 • SPACER 1
5 0115-010161 •+FX12 UPPER U-CUP SEAL 2
6 0115-010229 FX12 UPPER U-CUP RETAINER 1
7 0115-010205 PUMP ADAPTER PLATE 1
8 0115-010143 •+FX12 PUMP TUBE SEAL 2
9 0115-010162 • FX12 UPPER U-CUP SPACER 1
10 0115-010137 FX12 UPPER PUMP TUBE 1
11 0115-010269 FX12 CHECK VALVE ASSEMBLY 1
12 0115-010142 FX12 PUMP ROD (HARD CHROME) 1
13 0114-014022 • UPPER BALL (10mm) 2
14 0115-010144 •+FX12 UPPER SEAT SEAL 3
15 0115-010145 • FX12 UPPER SEAT 2
16 0115-010146 FX12 UPPER SEAT RETAINER 1
17 0115-010164 • FX12 LOWER U-CUP SPACER 1
18 0115-010163 •+FX12 LOWER U-CUP SEAL 1
19 0115-010138 FX12 LOWER PUMP TUBE 1
20 0115-010140 •+FX12 LOWER BALL CAGE SEAL 1
21 0115-010139 FX12 LOWER BALL CAGE 1
22 0114-014025 • LOWER BALL (18mm) 1
23 0115-010147 •+FX12 LOWER SEAT SEAL 1
24 0115-010148 • FX12 LOWER SEAT 1
25 0115-010149 FX12 FLUID INLET FITTING 1
26 0115-010258 FLUID OUTLET FITTING 1
27 0115-010270 • FX12 CHECK VALVE SPRING 1
28 0115-010271 FX12 CHECK VALVE HOUSING 1
• Parts are included in Repair Kit 0115-010305
+ Parts are included in Seal Kit 0115-010304

77-2924
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FX12 FLUID PUMP (CHEVRONS) – MAINTENANCE
Models: FX12PL (PTFE/Leather), FX12PP (PTFE), FX12PU (PTFE/UHMW)
MAINTENANCE SYMBOLS
MAINTENANCE ORDER
(Reverse for assembly)
PETROLEUM JELLY
THREAD SEALANT
(PTFE tape)
UHMW (2x)
if applicable
UHMW (2x)
if applicable