7
Maintenance and Troubleshooting
n
User qualification: trained user, see
WARNING!
Danger from hazardous substances!
Possible consequence: Fatal or very serious inju‐
ries.
Please ensure when handling hazardous sub‐
stances that you have read the latest safety data
sheets provided by the manufacture of the haz‐
ardous substance. The actions required are
described in the safety data sheet. Check the
safety data sheet regularly and replace, if neces‐
sary, as the hazard potential of a substance can be
re-evaluated at any time based on new findings.
The system operator is responsible for ensuring
that these safety data sheets are available and that
they are kept up to date, as well as for producing
an associated hazard assessment for the worksta‐
tions affected.
WARNING!
Live parts
Cause: Incorrectly performed installation work can
lead to danger from electrical power.
Possible consequence: Fatal or very serious inju‐
ries.
Measure: Make sure that the mains power supply
is disconnected during all maintenance and repair
work. Regularly check the continuity of the earth
line by taking measurements. Carry out all work in
line with the applicable national and international
statutory regulations, laws and standards. The
system operator is responsible for ensuring compli‐
ance and implementation.
CAUTION!
Warning of feed chemical spraying around
Feed chemical can spray out of the hydraulic com‐
ponents if they are manipulated or opened due to
pressure in the liquid end and adjacent parts of the
system.
– Disconnect the pump from the mains power
supply and ensure that it cannot be switched
on again by unauthorised persons.
– Depressurise the system before commencing
any work on hydraulic parts.
1.
Drain and flush dosing heads, pulsation dampers, valves and
pipework.
2.
Keep key spare parts near the metering system, including
spare parts and wear parts sets for the pumps and spare
parts for other system parts.
Maintenance and Troubleshooting
28
