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4Priming
The pump must be fully primed
before start up, fill the casing with
liquid and rotate shaft by hand in
order to remove any trapped air in
the impeller.
Install a foot valve in the suction side
and fill with liquid through the upper
part. Remove the male plug locate on
the superior part of the casing until
liquid comes out, then seal the male
plug.
IMPORTANT!
operate the pump without
being
fully
4Rotation
Rotation
is
indicated
directional arrow marked on the
barmesa.com
pump casing. If motor is operated in
three phase, it is very important that
motor shaft rotation match the
direction as the directional arrow on
casing.
Energize
momentarily and check for the
correct shaft rotation. Do not let the
pump operate against the directional
arrow.
4Starting the Pump
Start the pump with the discharge
valve 90% close. Gradually open the
discharge valve until motor is at
operating speed. Never allow the
amperage consumed by the pump
exceeds the maximum allowed by
the engine.
4Mechanical Seal
The mechanical seal installed in BVL
models are water lubricated, do not
run the pump unless properly filled
with water. Different kind of seals are
used of a distinctive operational use
and liquid being pumped, consult
your Barmesa Pumps distributor for
more information.
4Repair, Maintenance & Service
any repair, maintenance or service
perform on the pump.
-
Do
not
4Remove the Mechanical Seal
primed.
The BVL model futures an external
mechanical seal which facilitates the
mechanical seal replacement without
the need to remove the pump or
by
the
motor, saving time and money.
Begin by disconnecting power to
Ÿ
the motor and locked and seal
the power supply so the motor
the
motor
doesn't not accidentally start.
Close the suction and discharge
valve and drain the remaining
liquid by removing the plug,
once all the liquid is drained
reinstall the plug.
Remove the coupling guard to
Ÿ
gain access to the mechanical
seal.
Using the "Allen" wrench loosen
Ÿ
and remove the coupling bolts
from the split coupling. Separate
the coupling house gently in
order to avoid damage in the
coupling. Remove the second
half of the coupling and note
that the pump shaft will drop
down as you do this.
Remove both the motor shaft
Ÿ
key and pump shaft key. Do not
remove the motor shaft collar,
this will help you on the coupling
reinstallation.
IMPORTANT! - Always de-
energize the motor and lose
the discharge valve before
Operation & Maintenance
Place a wrench on the hole in the
Ÿ
pump shaft to keep it from
rotating and continue to remove
the cap screw, lock washer and
collar from the pump shaft. There
you will find a minimum distance
of 35 mm (1-3/8") between the
pump shaft and motor shaft.
Inspect shaft in order to find any
Ÿ
bump or damage part, correct if
necessary.
Remove the mechanical seal
Ÿ
rotating assembly by sliding it up
the pump shaft and slipping it
through the gap between shafts.
Remove the connector and
Ÿ
cooling
seal
flush
connected in the seal plate.
Remove the 4 screws and lock
washers that hold the seal plate
and remove the mechanical seal
stationary part with its gaskets
4Replace the Mechanical Seal
Be precautious while handling the
mechanical seal and avoid any
damage or scratches on the seal
faces. Do not touch the seal faces as
this may affect the mechanical seal
performance.
Replace the stationary seal with
Ÿ
the large gasket down and make
sure the seal flush hole is
position towards the flush line
connection.
Install the seal plate on the pump
Ÿ
with the seal flush hole aligned
to the seal flush hole on the
stationary seal.
Place the seal plate bolts and
Ÿ
washers, make sure to hand
tighten evenly.
Carefully, in a diagonal pattern,
Ÿ
tighten each bolt evenly giving
them a few turns.
piping
6
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