DAB ALM 200, Instruction For Installation And Maintenance

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ENGLISH
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10. PRECAUTIONS
10.1 The electropump should not be started an excessive number of times in one hour. The maximum
admissible value is as follows:
MAXIMUM NUMBER OF STARTS PER HOUR
SINGLE-PHASE MOTORS 30
THREE-PHASE MOTORS UP TO 5.5 HP 20 ÷ 30
THREE-PHASE MOTORS FROM 7.5 TO 60 HP 5 ÷ 10
10.2 DANGER OF FROST: When the pump remains inactive for a long time at temperatures of less
than 0°C, the pump body must be completely emptied to prevent possible cracking of the
hydraulic components. This operation is advisable even in the event of prolonged inactivity at
normal temperature.
Check that the leakage of liquid does not damage persons or things,
especially in plants that use hot water. The system must be drained only
once the fluid temperature has reached environment temperature.
Do not close the drainage cap until the pump is to be used again.
When restarting after long periods of inactivity it is necessary to repeat the operations described
above in the paragraphs
“WARNINGS” and “STARTING UP” .
11. MAINTENANCE AND CLEANING
11.1 As well as being at high temperature and high pressure, the fluid in the system
may also be in the form of steam.
DANGER OF BURNING.
It may be dangerous even to touch the pump or parts of the system.
11.2
The electropump can only be dismantled by competent skilled personnel, in
possession of the qualifications required by the legislation in force.
In any case,
all repair and maintenance jobs must be carried out only after having disconnected
the pump from the power mains. Ensure that it cannot be switched on accidentally.
If possible, keep to a maintenance schedule: expensive repairs or machine down
times can be avoided with a minimum expense. During maintenance schedule
discharge the condensate, if necessary present into the motor, through the hole,
removing the exhaust port plug no (electropumps with IP55 Degree of motor
protection only)
11.3 If the liquid has to be drained out maintenance, ensure that the liquid coming
out cannot harm persons or things, especially in using hot water.
The legal requirements on the disposal of any harmful fluids must also be
complied with.
11.4 In normal operation, the pump does not require any kind of maintenance. However, from time to
time it is advisable to check the plate data, which will enable you to have advance warning of any
faults or wear.
11.5 On some models which are provided with a grease nipple, the motor ball bearings must be greased
every 3000 working hours; this interval may be reduced in the case of heavy duty applications. So
top up with grease for high temperatures through the grease nipples provided.
11.6 After any operation involving the removal of the motor head from the pump body, it is
advisable to change the O-ring between the pump body and the support.
12. MODIFICATIONS AND SPARE PARTS
Any modification not authorized beforehand relieves the manufacturer of
all responsibility.
All the spare parts used in repairs must be original ones
and the accessories must be approved by the manufacturer so as to be able to
guarantee maximum safety of persons and operators, and of the machines and
systems in which they may be fitted.