WIL-10020-E-06
15
WILDEN PUMP & ENGINEERING CO.
SECTION 8B
REASSEMBLY HINTS & TIPS
ASSEMBLY:
Upon performing applicable maintenance to the air distribu-
tion system, the pump can now be reassembled. Please
refer to the disassembly instructions for photos and parts
placement. To reassemble the pump, follow the disassem-
bly instructions in reverse order. The air distribution system
needs to be assembled first, then the diaphragms and finally
the wetted path. Please find the applicable torque specifica-
tions on this page. The following tips will assist in the assem-
bly process.
• Clean the inside of the center section shaft bushing to
ensure no damage is done to new seals.
• Stainless bolts should be lubed to reduce the possibility
of seizing during tightening.
• Do not leave tee-section o-rings in tee during reassem-
bly. Place o-ring on male liquid chamber to ensure o-
rings are not damaged and to facilitate easier assembly.
• Apply a small amount of Loctite 242 to the bore of the
shaft from the diaphragm assembly.
TORQUE SPECIFICATIONS FOR MODEL A.025 PUMPS
Description of Part
Maximum Torque
Air Valve, Turbo-Flo™ Solenoid
2.3 N•m (20 in-lbs)
Outer Piston, Rubber and TPE Diaphragms
5.6 N•m (50 in-lbs)
Air Valve, Pro-Flo
®
2.3 N•m (20 in-lbs)
Clamp Band
2.3 N•m (20 in-lbs)
Top and Bottom Retainer, Poly
4.4 N•m (40 in-lbs)
Top and Bottom Retainer, PVDF
5.1 N•m (45 in-lbs)
