Binks 81882 Series - Air and Lube Requirements; Fluid Section Disassembly; Fluid Section Reassembly; Maintenance

81882X (en) Page 3 of 12
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Santoprene® is a registered trademark of Monsanto Company, licensed to Advanced Elastomer Systems, L.P.
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Key-Lube® is a registered trademark of Key Industries
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AIR AND LUBE REQUIREMENTS
WARNING
EXCESSIVE AIR PRESSURE. Can cause per-
sonal injury, pump damage or property damage.
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A filter capable of filtering out particles larger than 50
microns should be used on the air supply. There is no lu-
brication required other than the “O” ring lubricant which
is applied during assembly or repair.
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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
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Always flush the pump with a solvent compatible with
the material being pumped if the material being pumped
is subject to “setting up” when not in use for a period of
time.
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Disconnect the air supply from the pump if it is to be in-
active for a few hours.
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The outlet material volume is governed not only by the air
supply, but also by the material supply available at the in-
let. The material supply tubing should not be too small or
restrictive. Be sure not to use hose which might co lapse.
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When the diaphragm pump is used in a forced-feed
(ooded inlet) situation, it is recommended that a “Check
Valve” be installed at the air inlet.
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Secure the diaphragm pump legs to a suitable surface to
ensure against damage by vibration.
MAINTENANCE
Refer to the part views and descriptions as provided on pag-
es 4 through 8 for parts identication and service kit informa-
tion.
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Service kits are divided to service two separate dia-
phragm pump functions: 1. AIR SECTION, 2. DIAPHRAGM
SECTION, 3. BALL and SEAT SECTION.
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Provide a clean work surface to protect sensitive internal
moving parts from contamination from dirt and foreign
matter during service disassembly and reassembly.
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Keep good records of service activity and include pump
in preventive maintenance program.
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Before disassembling, empty captured material in the
outlet manifold by turning the pump upside down to
drain material from the pump.
FLUID SECTION DISASSEMBLY
1. Remove (16) manifolds for aluminum pump and (60, 61)
inlet and outlet manifold for stainless steel pump.
2. Remove (22) balls, (19) “O” rings and (21) seats.
3. Remove (15) uid caps.
4. Remove the (14) screws, (7/8) diaphragms and (5) washers.
5. Remove (3) “O” rings.
NOTE: Do not scratch or mar the surface of (1) diaphragm
rod.
FLUID SECTION REASSEMBLY
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Reassemble in reverse order.
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Clean and inspect all parts. Replace worn or damaged
parts with new parts as required.
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Lubricate (1) diaphragm rod and (2) “O” ring with Key-
Lube grase and install (2) “O” ring on (1) diaphragm rod.
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Be certain (7/8) diaphragm(s) align properly with (15) uid
caps before making nal torque adjustments on bolt and
nuts to avoid twisting the diaphragm.
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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 dia-
phragm with the side marked “FLUID SIDE” towards the
uid cap.
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Re-check torque settings after pump has been re-started
and run a while.