WIL-10060-E-03
Wilden
®
19
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 the pump, follow the disassembly 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.
•
Be sure to tighten outer pistons simultaneously on
PTFE-fitted pumps to ensure proper torque values.
•
Place one liquid chamber on its side and align center
section with chamber using alignment marks made
during disassembly. Push down on diaphragm assembly
until diaphragm is inverted. Place opposite liquid
chamber on center section and align.
•
Position valve balls, seats, and o-rings in discharge manifold. Place
vertical bolts through discharge manifold with threads pointing up.
Install washer and start threads of bolt (about 11⁄2 turns).
•
Place center section and liquid chambers on intake manifold.
•
Position discharge manifold and bolt assembly on liquid chambers.
Ensure proper alignment of mating surfaces between liquid chambers
and manifolds before tightening bolts.
•
Apply a small amount of Loctite 242 to the steel bore of the shaft from
the diaphragm assembly.
MAXIMUM TORQUE SPECIFICATIONS
Description of Part
Metal Pumps
Solenoid Air Valve (Turbo-
Flo™)
3.4 N•m (30 in
-lb)
Solenoid Air Valve (Pro-Flo
®
)
3.1 N•m (27 in
-lb)
Adapter Block Air Valve
3.1 N•m (27 in
-lb)
Outer Piston, Rubber and PTFE-Fitted
40.7 N•m (30 ft
-lb)
Vertical Bolts
13.0 N•m
(115 in-lb)
