16
WILDEN PUMP & ENGINEERING, LLC
WIL-10060-E-03
Step 8A.
Figure 8A
NOTE: Due to varying torque values,
one of the following two situations may
occur: 1) The outer piston, diaphragm
and inner piston remain attached to the
shaft and the entire assembly can be
removed from the center section.
Step 8B.
Figure 8B
2) The outer piston, diaphragm, inner
piston, and disc spring separate from
the shaft which remains connected to
the opposite side diaphragm assembly
PTFE-fitted pumps come standard with
back-up diaphragms (not shown).
Step 9.
Figure 9
To remove the diaphragm assembly from
the shaft, secure shaft with soft jaws (a
vise fitted with plywood or other suitable
material) to ensure shaft is not nicked,
scratched, or gouged. Using a wrench,
remove diaphragm assembly from shaft.
Inspect all parts for wear and replace
with genuine Wilden parts if necessary.
Step 5.
Figure 5
Remove the discharge valve balls,
seats and O-rings from the discharge
manifold and inspect for nicks,
gouges, chemical attack or abrasive
wear. Replace worn parts with genuine
Wilden parts for reliable performance.
PTFE O-rings should be replaced when
reassembled.
Step 6.
Figure 6
Inspect the valve seat, valve seat O-ring
and valve ball from intake manifold.
Check for nicks, gouges, chemical
attack or abrasive wear. Replace worn
parts with genuine Wilden parts for reli-
able performance. PTFE O-rings should
be replaced when reassembled.
Step 7.
Figure 7
With the 3/4" box wrench or by rotat-
ing the diaphragm by hand, remove the
dia phragm assembly.
P U M P D I S A S S E M B L Y
