Cautions For Operation; Maintenance - EBARA GS Instruction Manual

5. Cautions for operation

Warning
(1) The frequent starting up and stopping of the pump will cause damages. It is recommended to limit the
starting up of the pump as follows:
Motor output 10 HP (7.5 kW) or less
Number of
starts per hour
(2) If there is a power failure, turn the power switch off. Otherwise, the pump may start-up suddenly when
the power supply is resumed.

7 Maintenance

Warning
Caution
If the pump is operated for long periods with the discharge
valve closed, the water temperature inside the pump will
rise, causing an accident. Do not operate the pump with
the discharge valve closed for longer than 1 minute.
Table 3 The value of starting frequency
6 times or less
Disassembly and repair of the pump should only be
performed by specialist maintenance technicians. Otherwise,
error by personnel could result in electric shock, and the pump
catching fire or operating abnormally and causing injury.
Always turn the power switch OFF before inspecting or
repairing the pump. Not doing so could result in the pump
starting up suddenly in auto operation, exposing personnel to
danger.
If the pumped liquid is hot water, keep your hands off the
pump. The pump's surfaces will be hot, and you could get
burned if you touch them.
Do not touch the motor. The motor's surfaces will be hot, and
you could get burned if you touch them.
To prevent an accident if the pump stops running or an
abnormality occurs, immediately turn off the power switch.
Contact the shop from where you ordered the pump, or EBAS
to perform an inspection and maintenance on the pump.
When the pump is out of use for prolonged periods such as
the wintertime, water inside the pump could freeze, causing
damage to the pump. Accordingly, in such situations, either
drain all water from the pump or provide thermal insulation to
prevent the water from freezing.
15 HP to 30 HP
40 HP (30 kW) or more
(11 kW to 22 kW)
4 times or less
- 15 -
3 times or less