7
Maintenance
Ÿ
Repeat pattern until all the bolts
have been completely tighten.
Do not over tighten this bolts, it
may damage the pumps casing
and stationary seal.
Ÿ
Once the stationary part and the
seal plate have been installed,
using silicon lubricant, lightly
lubricate the Viton seal O-ring.
This will help to position the
assembly down the shaft.
Ÿ
Inspect the pump shaft and look
for imperfections that may
damage the mechanical seal O-
ring. In case you find one make
sure
to
correct
this
imperfections.
Ÿ
Slide the rotating assembly
carefully down the pump shaft
onto the stationary seal.
Ÿ
Install the collar, lock washer and
cap screw and place a wrench on
the hole in the pump shaft to
keep it from rotating, tighten the
cap screw.
Ÿ
Place the key on the motor shaft
and pump shaft.
Ÿ
Identify the coupling half that is
machined to receive the two
shafts keys. Slide the coupling
between the two shafts and
position the motor collar in the
coupling. (motor collar was not
removed)
Ÿ
To connect the pump shaft collar
to the coupling half you will
need to slightly raise the shaft
using an Allen key or a wrench
inserted in the shaft hole.
Ÿ
Place the second half of the
coupling and insert the coupling
bolts and washers. Hand tighten
them at this point.
Ÿ
Make sure both motor shaft and
pump shaft rotate freely.
Ÿ
Adjust the mechanical seal
rotating assembly on top of the
stationary seal and tighten the
set screw.
Ÿ
Remove the holding clips with a
small flat head screwdriver.
Ÿ
Open discharge and suction
valves and make sure the pump
is primed.
Ÿ
To ensure a proper priming, open
the plug in the mechanical seal
lubrication line until liquid starts
bursting out, then close it. Now
you can re-energize the motor
and reconnect the power supply.
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