MP Pumps CHEMFLO 5, 6, 7, 8 PUMPAKS INSTRUCTION User Manual
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ROTATION: (cont.)
To adjust impeller clearance, do this:
1.
Loosen the impeller drive sleeve clamp.
2. Move impeller either forward or back by
using a screwdriver to push impeller
back – or move impeller drive sleeve
forward.
Depending on the seal spring tension, you can do
this by hand without removing the pump housing.
Turn the driver to determine that you have
adjusted the clearance so the impeller does not
rub. Then tighten the impeller drive sleeve
clamp.
IF THE SEAL SPRING TENSION
PREVENTS
THIS
METHOD
OF
ADJUSTMENT, DO THIS:
1.
Remove pump housing.
2.
Loosen drive clamp, but do not remove.
3.
Remove o-ring from housing.
4.
Replace housing, pushing against impeller
face. Secure housing with two fasteners, 180
degrees apart.
5.
Securely tighten drive clamp.
6.
Remove housing and install o-ring
7.
Replace housing.
INSTALLATION:
The MP CHEMFLO centrifugal PUMPAKS
should be installed with flooded suction or as
near to the liquid source as possible.
If it is necessary to install the pump above the
level of the liquid, a priming line should be
connected directly to the suction line. A check
valve must be used in conjunction with a priming
line or the priming liquid will merely pass
through the suction line to the liquid source. The
priming of the suction line evacuates the air in
the suction line and pump. This series of pumps
will not handle air and therefore all air must be
displaced from the suction line and pump before
the pump can operate. Be sure that the pump
housing is filled with liquid before starting the
pump.
THE MECHANICAL SEAL IN THE
PUMP MUST NOT BE OPERATED DRY.
Pipe or hose of the same size (or larger) as inlet
and outlet openings should be used on the
installation. When using pipe, avoid sharp bends
and use long radius elbows wherever possible.
This will keep friction loss at a minimum and
allow the pump to operate more effectively. Use
pipe dope on all connections and be sure all
fittings are airtight, especially on the suction side
of the pump. An air leak on the suction side of
the pump will prevent proper operation. A
section of non-collapsible hose between piping
and pump may be used as a vibration dampener.
TO DISASSEMBLE THE PUMP:
Drain the system of liquid, break suction and
discharge pipe unions, and, if necessary, remove
all piping from the suction and discharge
openings. Remove the fasteners holding the
pump adaptor to the driver, loosen the drive
clamp assembly, and remove the
PUMPAK.
To disassemble, remove the washers and hexnuts
holding the motor adaptor to the housing.
Remove the housing.
Loosen the drive clamp assembly. The impeller,
drive sleeve, seal bellows, and the spring
assembly will now slide forward free of the pump
adaptor.
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