Lutz-Jesco EASYPURE 1000, Руководство по эксплуатации

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Maintenance
25
© Lutz-Jesco GmbH 2015
Subject to technical changes.
150527 BA-70200-02-V01
Polymer preparing and dosing station EASYPURE Powder and Liquid Operating instructions
10 Maintenance
Products by Lutz-Jesco are manufactured to the highest quality
standards and have a long service life. However, some parts are subject
to operational wear. This means that regular visual inspections are
necessary to ensure a long operating life. Regular maintenance will
protect the device from operation interruptions.
DANGER!
Mortal danger from electric shock!
Live parts can inflict fatal injuries.
ð
Before carrying out any maintenance work, always disconnect the
device from the power supply.
ð
Secure the system to prevent it from being switched on by
accident.
WARNING
Increased risk of accidents due to insufficient qualifica-
tion of personnel!
The system and its accessories may only be installed, operated and
maintained by personnel with sufficient qualifications. Insufficient
qualification will increase the risk of accidents.
ð
Ensure that all action is taken only by personnel with sufficient and
corresponding qualifications.
10.1 Maintenance intervals
The device require regular maintenance to prevent errors. This table gives
you an overview of maintenance work and the intervals at which you
must carry it out. The next few sections contain instructions for carrying
out this work.
Interval Maintenance
daily n
Check the dirt trap and clean if necessary
weekly
n
Check the downpipe and clean if necessary
n
Check the dosing screw and clean if
necessary
n
Check the container and clean if necessary
n
Check the ultrasonic sensor and clean if
necessary
every 5000
operating hours
n
Lubricate the dry feed dosing drives
Table 18: Maintenance intervals
10.1.1 Clean the dirt trap
The dirt trap must be checked for too much soiling. The degree of soiling
can be determined by a visual inspection of the transparent filter cup in
the dirt trap. If the screen surface is 2/3 soiled or the required amount of
water cannot penetrate, the screen insert requires cleaning.
Precondition for action:
ü
The system has been disconnected electrically and is protected
against reconnecting.
ü
The ball valve to the water equipment is closed.
Perform the following working steps:
1.
Remove the cap on the underside of the pressure-relief valve.
2.
Remove the screen
3.
Clean the scree
4.
Insert the screen
5.
Screw on the cap to the underside of the pressure-relief valve.
6.
Open the ball valve on the water equipment.
7.
Check the pressure-relief valve for leaks.
ü
Dirt trap cleaned
10.1.2 Clean the downpipe
Precondition for action:
ü
The system has been disconnected electrically and is protected
against reconnecting.
Perform the following working steps:
1.
Rinse the downpipe with water.
2.
Dry it completely before recommissioning the system.
ü
The downpipe has been cleaned.
10.1.3 Service the dosing screw
Precondition for action:
ü
The system has been disconnected electrically and is protected
against reconnecting.
Perform the following working steps:
With light soiling:
è
Clean the dosing screw without dismantling.
With heavy soiling:
è
uninstall the dosing screw and clean it thoroughly.