WIL-11020-E-03
Wilden
®
18
Disassembly / Reassembly
Reassembly Hints & Tips
Upon performing applicable maintenance to the air
distribution system, the pump can now be
reassembled. Please refer to the disassembly
instructions for photos and parts placement. To
reassemble pump, follow the disassembly
instructions in reverse order. The air distribution
system needs to be assembled first, then the
diaphragms, and finally the wetted parts. Please
find applicable torque specifications in this section.
The following tips will assist in the assembly process.
•
Clean the inside of the center section shaft bore
to ensure no damage is done to new seals.
•
Stainless bolts should be lubed to reduce the
possibility of seizing during tightening.
•
Be sure to tighten outer pistons simultaneously
on PTFE- fitted pumps to ensure proper torque
values.
•
Apply a small amount of Loctite 242 to the shaft
interval threads before the diaphragm assembly.
•
Concave side of disc spring in diaphragm assembly
faces
toward
inner piston.
PTFE diaphragm configuration
Lubricate the main shaft assembly with NLGI grade 2 white EP bearing
grease or equivalent and insert through main shaft bore in center
section. Assemble the other side and torque to proper value as listed
below. Please review the photos above for proper alignment.
PRO-FLO
®
MAXIMUM TORQUE SPECIFICATIONS
Description of Part
Torque
Air Valve
[2.3 N•m] 20 in.
-lbs
Liquid Chamber Bolt
[6.2 N•m] 55 in.
-lbs.
Manifold Bolt
[6.2 N•m] 55 in.
-lbs.
Summary of Contents for P25 Advanced Plastic Series
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