5. Maintenance and inspection
IOM manual
–
SG series
22
5.
Maintenance and inspection
Regular maintenance and inspection are required for proper pump operation. If any
abnormal conditions are observed, refer to chapter 6. Troubleshooting and take corrective
action immediately.
5.1.
Precautions
DANGER:
Disconnect and lock out electrical power before installing or servicing the unit.
WARNING
:
➢
Always follow safety guidelines when working on the product.
➢
Make sure that the unit cannot roll or fall over and injure people or damage property
.
➢
Rinse the unit thoroughly with clean water before working on the unit.
➢
Rinse the components in water after dismantling
.
Make sure that you follow these requirements
:
➢
Check the explosion risk before you use electrical hand tools.
➢
Allow all system and pump components to cool before you handle them.
➢
Make sure that the product and its components have been thoroughly cleaned.
➢
Do not open any vent or drain valves or remove any plugs while the system is
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
Remove any debris attached to the pump
'
s outer surface
,
and wash the pump with tap water.
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.
NOTICE:
Touch-up paint must be provided by the user. If the pump must be disassembled due to
damage or loose bolts or nuts
,
contact Tapflo.
5.2.
Inspection and service intervals
Interval
Inspection and maintenance subject
Monthly
Isolation resistance measure
➢
Cold insulation resistance reference value
≥
20M
Ω
➢
Heated insulation resistance reference value
≥
1M
Ω
NOTICE:
The motor must be inspected if the insulation resistance is
considerably lower than that obtained during the last inspection
.
Loaded current measure
➢
To be within the rated current (see pump nameplate)
Power supply voltage measure
➢
Power supply voltage tolerance
