Solidpump TBZ Series - W Ater Level During Operation 1; 6 Maintenance and Inspection; Inspection

2. Miniature Protector Non-standard parts
built-in type temperature thermal protector is assembled for KBS415
KBS422
This protector is embedded inside the motor coil. If the coil should overheat for
any reason, bending of the bimetal of the miniature protector triggers a
signal, which in turn causes an external circuit in the starting console or control
panel to shut off the motor current. When the temperature returns to normal,
the protector is automatically reset, but restarting is controlled from the starting
console or control panel.
WARNING:
A b-contact miniature protector is adopted, which is normally "closed" and goes
to "open" upon overheating.
To protect the motor from current surges, be sure to install a motor breaker,
thermal relay or similar device in the external starting console or control panel.
(5) Water level during operation
Pay attention to the water level during the pump operation. The pump will become
damaged if it is allowed to operate dry.
CAUTION:
Do not operate the pump below Continuous running Water Level (C.W.L),
as doing so will damage the pump, causing current leakage and
electrical shock.
The table below shows the water level during operation by output. Make sure
that the water level will not be under these levels.
MODEL C.W.L.
50TBZ(E)1.5 80TBZ(E)1.5
50TBZ(E)2.2 80TBZ(E)2.2
120 mm
50TBZ(E)3.7 80TBZ(E)3.7
100TBZ(E)3.7 80TBZ(E)5.5
100TBZ(E)5.5
150 mm
100TBZ7.5 150TBZ7.5
100TBZ11 150TBZ11
100TBZ15 150TBZ15
190 mm
The water level for the models which is not included in the tables: as per the picture
shown: the lowest water level should submerge the pump strainer
6. Maintenance and inspection
Precautions
DANGER:
Disconnect and lock out electrical power before installing or servicing the unit.
WARNING:
unit can not roll or fall over and injure people or damage property.
Make sure that you follow these requirements:
hand tools.
pressurized. Make sure that the pump is isolated from the system and that pressure is
relieved before you disassemble the pump, remove plugs, or disconnect piping.
Washing the pump
r. Pay
particular attention to the impeller area, and completely remove any debris from the impeller.
Inspecting the pump exterior
Verify that the paint is not peeled, that there is no damage, and that the bolts and nuts have not
loosened. If the paint has peeled, allow the pump to dry and apply touch-up paint.
NOTE:
Touch-up paint must be provided by the user. If the pump must be disassembled due
to damage or loose bolts or nuts, contact the dealer from whom you purchased
the equipment or the Solidpump sales office in your area.
(1) Inspection
Interval
Inspection item
Monthly
Measuring insulation resistance
cold Insulation resistance reference value 20M
min
cold .
thermal Insulation resistance reference value
1M min thermal
.
NOTE:
The motor must be inspected if the insulation resistance is considerably
lower than that obtained during the last inspection.
Measuring the loaded current
To be within the rated current
19 20