d i s A s s E M b L y / R E A s s E M b L y
pump maintenance checKlist
CHECK DAILY:
Check regulator pressure * suction = Approx .
1.
5 bar (75 PsI) * Discharge = Approx . 2 .8 bar (40
PsI) (settings vary greatly with product and
Distance) .
Check filter bowls for condensation build-up or
2.
damaged/dirty filters .
Check to make sure diffuser screen is in place
3.
Check to make sure the door of the control panel
4.
is closed and latched at all times to guard against
water ingress . Lock the panel door closed if
necessary .
CHECK MONTHLY:
Check vacuum generator function
1.
Disconnect vacuum line at senor cap and
a.
block off or cap the line .
With the pump turned on and in suction
b.
mode a vacuum will build in the line which
can be read from the gauge on the vacuum
generator .
With 5 bar (75 PsI) line pressure the generator
c.
should develop between 22-26 inches of
vacuum . If it is found that the generator is
not performing properly a rebuild or cleaning
may be needed .
Inspect sensor cap including
2.
All attached air lines
a.
sensor cord
b.
Pneumatic cylinders
c.
Fasteners
d.
O-ring seals
e.
Inspect control cabinet including
3.
Door latches
a.
Door seal
b.
PLC is securely mounted
c.
All cord grips and bulkhead fittings
d.
tightened
Check for air leaks
e.
Check for corrosion
f.
Potentiometer functions correctly
g.
run/purge switch functions correctly
h.
Valves function correctly
i.
S e c t i o n 5
d i s A s s E M b L y / R E A s s E M b L y
pump cleaning procedure
empty the discharge piping of product using the
1.
purge switch on the control panel .
Disconnect inlet and outlet piping from the pump,
2.
keeping clamps and gaskets in a secure place .
remove sensor cap and diffuser screen from
3.
pump and place them on the sensor cap storage
bracket, keeping the clamp and gasket in a secure
place . By hand, wash the sensor cap, paying
special attention to the probe . An abrasive hand
pad can be used to scour the probe if necessary .
Avoid high pressure spray . sanitize as necessary
and inspect for cleanliness .
Air lines to and from pump probe be inspected
4.
regularly and replaced as required .
Air lines to and from pump probe be inspected
5.
regularly and replaced as required .
remove reservoir tube from pump base, keeping
6.
clamp and gasket . use high pressure spray to
clean the tube . sanitize as necessary and inspect
for cleanliness .
remove inlet and outlet check valves from the
7.
pump base, keeping clamps and gaskets in a
secure place . High pressure spray as well as
hand washing should be used to ensure thorough
cleaning . sanitize as necessary and inspect for
cleanliness .
Clean the pump base with high pressure spray .
8.
sanitize as necessary and inspect for cleanliness .
By hand, wash all clamps and gaskets . sanitize as
9.
necessary and inspect for cleanliness .
reassemble pump .
10.
10
WILDEN PUMP & ENGINEERING CO., LLC
WIL-12120-E-01