22
ELRO
®
Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
8. Remove the pulsation damper.
9. Let all fluid residues drip off the
couplings.
10. For easier cleaning of the pump you
should use 2" foam rubber balls.
Note: All residues resulting from
the flushing of pump, hoses and
accessories must be properly
disposed of.
4.3
Taking out of service
Always observe the safety
instructions in chapter 2 in
this manual and the operating
instructions for the drive unit.
The shut-down of the pump for mainte-nance
or cleaning work must only be per-formed by
authorized and trained personnel.
Danger of cauterization
Clean the pump before taking
out of service. Always wear your
personal protective outfit.
1. Drain and flush the pump thoroughly.
2. Switch off the electric power supply and
secure against unintended restarting.
3. Relieve the pressure in suction and
pressure lines.
Fluids escaping under pressure
can cause severe injury.
Take care when loosening
pressure fittings, wear protective
clothing.
Be extremely careful when
handling hazardous fluids.
You should immediately consult
a doctor if you had contact with
such substances.
4. Loosen suction and pressure fittings
carefully. The system may still be under
pressure or tension.
5. Disconnect suction ánd pressure hoses
from the pump.
If wear symptoms are detected when
inspecting the pump, the respective parts
must be replaced.
Attention!
Attention!
Caution!
Hazard!
