Dover PSG Wilden PS1520, Engineering, Operation & Maintenance, Page: 17 / 32

WIL-11520-E-07
15 WILDEN PUMP & ENGINEERING, LLC
Step 4
Remove the discharge valve balls
and valve seats from the liquid
chambers and inspect for nicks,
gouges, chemical attack or abrasive
wear. Replace worn parts with
genuine Wilden parts for reliable
performance.
Step 5
Using the appropriate-sized wrench,
loosen the inlet manifold from the
liquid chambers. NOTE: Inverting
the pump will facilitate removal of
inlet manifold.
Step 6
Remove the inlet manifold to expose
the valve balls and valve seats.
Step 7
Remove the inlet valve balls and
valve seats from the inlet manifold
and liquid chambers and inspect for
nicks, gouges, chemical attack or
abrasive wear.
NOTE: Replace worn parts with
genuine Wilden parts for reliable
performance.
Step 8
Using an appropriately-sized
wrench, remove the liquid chamber
from the center section.
Step 9
The liquid chamber should be
removed to expose the diaphragm
and outer piston using an adjustable
wrench. Remove the diaphragm
assembly from the center section.
Repeat for opposite side.
P U M P D I S A S S E M B L Y