Step 9.
Figure 9
Remove one set of large clamp bands
which secure one liquid chamber to
the center section.
Step 10.
Figure 10
Lift liquid chamber away from center
section to expose diaphragm and
outer piston.
Step 11.
Figure 11
Using an adjustable wrench, or by
rotating the diaphragm by hand,
remove the diaphragm assembly.
Step 12.
Figure 12
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 (Figure 12). 2) The outer piston, diaphragm and inner piston
separate from the shaft which remains connected to the opposite side
diaphragm assembly (Figure 13). Repeat disassembly instructions for the
opposite liquid chamber. Inspect diaphragm assembly and shaft for signs
of wear or chemical attack. Replace all worn parts with genuine Wilden
parts for reliable performance.
Step 13.
Figure 14
To remove diaphragm assembly from
shaft, secure shaft with soft jaws (a
vise fi tted with plywood, plastic or
other suitable material) to ensure
shaft is not nicked, scratched or
gouged. Using an adjustable wrench,
remove diaphragm assembly from
shaft.
Figure 13
WIL-10161-E-01
21
WILDEN PUMP & ENGINEERING, LLC
P U M P D I S A S S E M B L Y
