Dover WILDEN A1 Series, Инженерия, эксплуатация и обслуживание, Страница: 17 / 28

WIL-10040-E-02
15
WILDEN PUMP & ENGINEERING, LLC
SECTION 8B
REASSEMBLY HINTS & TIPS
ASSEMBLY:
Upon performing applicable maintenance to the air distrib-
ution 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
specifications on this page. The following tips will assist in
the assembly 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.
• Level the water chamber side of the intake/discharge
manifold to ensure a proper sealing surface. This is most
easily accomplished by placing them on a flat surface
prior to tightening their clamp bands to the desired
torque (see this page for torque specs).
• Be sure to tighten outer pistons simultaneously on
Teflon
® -fitted pumps to ensure proper torque values.
• Ensure proper mating of liquid chambers to manifolds prior to
tightening vertical bolts. Overhang should be equal on both
sides.
• Apply a small amount of Loctite 242 to the threads of the shaft
prior to assembling the diaphragms and outer pistons.
Description of Part Plastic Pumps
Air Valve & Solenoid 2.3 N•m [20 in.•lbs.]
Outer Piston 8.7 N•m [75 in.•lbs.]
Small Clamp Band 1.7 N•m [15 in.•lbs.]
Large Clamp Band (Rubber-fitted) 7.4 N•m [65 in.•lbs.]
Large Clamp Band (Teflon ® -fitted) 9.6 N•m [85 in.•lbs.]
Vertical Bolts (Kynar [Rubber only]) 5.6 N•m [50 in.•lbs.]
Vertical Bolts (Kynar — Teflon ® -fitted) 2.8 N•m [25 in.•lbs.]
Vertical Bolts, all Polypropylene 9 N•m [80 in.•lbs.]
MAXIMUM TORQUE SPECIFICATIONS