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Avoid particles
Only in the area at risk from explosion:
adjust the relief valve
Only with a heating cartridge: check the
action of the heating cartridge
Only at low temperatures: allow the pump
to warm up
Only with add-on power end: check the
clutch
8.1 Bleeding the liquid end
For chemicals with a particle size greater than 0.3 mm, the
valves may no longer close properly.
Install a suitable filter in the suction line.
–
Set the opening pressure of the relief valve at a maximum of no more than
1.5 times the rated pump pressure .
Check the heating action of the heating cartridge and effectiveness of the
protective temperature limiter. No overheating must occur, especially in
the area at risk from explosion!
1.
Switch on the heating cartridge, set the stroke length of the pump to
"0" and start the pump.
2.
Allow the pump to warm up for 5 minutes.
3.
Set the stroke length of the pump to the required value.
Check that the clutch is correctly aligned and runs smoothly.
When bleeding the liquid end or suction against pressure:
Relieve the suction and discharge line from pressure!
With dangerous or unknown feed chemicals, take suitable protective
measures according to the safety data sheet!
1.
Loosen the discharge line.
2.
Install a piece of translucent hose.
3.
Run the pump slowly until the feed chemical appears in the piece of
hose.
4.
Remove the piece of hose.
5.
Mount the discharge line.
Start up
37
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