6.3.5
Cleaning the wastewater pump(s) housing
• Preparing the station for maintenance, draining, see 7.3.3
Clean both wastewater pumps, here:
• Unscrew all fastening bolts
All pumps are equipped with two fastenings on the fastening ange
• Lift out and clean the pump <14>.
• Ensure that the pump is free of damage.
• Clean the interior of the pump chamber <27>.
• Ensure that the ventilation hole is continuous.
• Ensure that the pump seal <29> is in optimum condition.
Prior to installing the pumps, it is advisable to clean the
wastewater container (see 7.3.6).
• Reinstall the pumps. Bolt tightening torque: 7 Nm
6.3.6
Cleaning the wastewater container and level detector
• Clean the wastewater container.
• Clean the immersion pipe and ensure that it contains no foreign bodies. Clean other level detectors, if
installed.
• Reinstall the maintenance port and immersion pipe. Tightening torque 3 Nm max.
6.3.7
Performing a function check
See the description in the control unit operating and maintenance manual.
6.4.
Troubleshooting
See the control unit operating and maintenance manual for information on troubleshooting.
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MAINTENANCE
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