8
IMPORTANT! - When the
pump starts and once the
rotation has been verified,
if it detects under water
flow or pressure it will be
necessary to calibrate the
space between the impeller
and its pump housing.
When you start your equipment for
the first time, check that the valve in
the discharge is 90% closed. Open
the valve gradually until the engine
works at full load (plate amperage).
Never allow the amperage consumed
by the pump to exceed the maximum
allowed by the motor.
4
Mechanical seal
The mechanical seals installed in the
pumps are lubricated by water,
therefore the pump should not be
operated dry. You will find the
appropriate seal for each use and
liquid to be pumped, consult your
BARMESA
distributor
for
more
information.
Operation & Maintenance
Perform this step by removing spacer
shims that are installed between the
housing and the coupling. The shims
work to maintain the required
nominal spacing of 0.015" to 0.020"
between the impeller and the inner
wall of the housing due to the natural
wear and tear that occurs. The pump
has 4 factory installed spacer shims
and four more parts. The 0.005" shim
is transparent and without a
perforation mark, the 0.010" shims
has a perforation mark, the 0.015"
shims has two perforation marks and
the
0.020"
shims
has
three
perforation marks. If necessary, start
by removing the 20 and 15
thousandth shims and check if the
flow and pressure of your pump is as
desired.
IMPORTANT!
-
Always
disconnect the pump before
applying
maintenance,
service or repair to avoid
electric shock.
4
Maintenance
If the mechanical seal does not leak
and there is a need to open the
pump for inspection or cleaning, DO
NOT remove the seal, only remove
the spring if the impeller had to be
removed. Once a seal has been in
operation it is very difficult that when
removing and reassembling it does
not show leaks.
4
Disassembly
Drain and rinse the system. Remove
the 4 screws from the case and
remove
the
case.
Check
the
conditions of the shims and replace
them if necessary. Remove the
impeller; the impeller compresses the
spring of the mechanical seal and is
prepared for the impeller to jump off
the shaft when unscrewed; to
remove it, you must turn it
counterclockwise while holding the
shaft with a screwdriver at the rear of
the engine. Remove the rotating part
of the mechanical seal by sliding it
through the sleeve, be careful with
the faces of the mechanical seal as it
is fragile when handling. Remove the
screws that secure the seal plate to
the adapter and the screws that hold
the coupling to the motor.
IMPORTANT! - Handle seal
parts with extreme care.
DO NOT DAMAGE polished
surfaces.
4
Reassembly
Assemble the adapter assembly, seal
plate, sleeve, mechanical seal and
housing
in
reverse
order
of
disassembly. Always check that O-
ring gaskets are in good condition, or
if necessary, replace them.
The adapter must be screwed to the
motor with the identification plate
facing up, then screw the seal plate to
the adapter, replace the sleeve,
applying liquid screw fastener on the
end that goes to the motor and
sliding it along the arrow. Verify that
the faces of the mechanical seal do
not show cracks or bumps, that if so,
you will need to replace it. Position it
carefully by sliding it through the
sleeve, place the spring on the
mechanical seal and screw the
impeller clockwise. Screw the casing
and pump base.
IMPORTANT! - All parts
must
be
clean
before
reassembly.
barmesa.com
Summary of Contents for BCS 1 1/4x1 1/2-5
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