Maintenance, Repair, Troubleshooting, Disposal And Spare Parts; Maintenance; Exchanging The Pump Hoses - ProMinent DULCOflex DFDa Operating Instructions Manual

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Maintenance, repair, troubleshooting, disposal and spare parts

6.1 Maintenance

6.2 Exchanging the pump hoses

Exchanging the pump hoses - dis‐
mantling
Maintenance, repair, troubleshooting, disposal and spare parts
User qualification, maintenance and disposal: instructed per‐
n
Ä Chapter 1.2 'Users' qualifications' on page 5
sonnel, see
User qualification, repair and troubleshooting: trained user, see
n
Ä Chapter 1.2 'Users' qualifications' on page 5
CAUTION!
Disconnect the pump from the mains
Possible consequence: Personal injury
You may only carry out work on the pump after it
has previously been switched off and disconnected
from the mains.
Lubrication
Check the lubricant filling level for the pump hose
n
– Check every 200 operating hours
Check whether the oil level is correct for the step-down gears
n
– Exchange the oil at regular intervals in accordance with the
step-down gear maintenance manual.
1. Close off all valves, in order to prevent leakage of the feed
chemical
2. Dismantle the pump hoses from both discharge and suction
sides
3. Drain the lubricant from the pump housing. In order to do so,
remove the plug from the rear side of the pump housing
(drain plug and vent screw)
ð Collect the lubricant with a container. Dispose of the
lubricant in accordance with the specifications detailed on
the lubricant safety data sheet.
4. Release the screw and remove both bearing flanges,
including the sleeves.
5. Release both clamping rings from the hose
CAUTION!
Risk of injury from the rotor
Never remove the front cover from the pump.
There is a risk of injury from the rotor.
6. Switch on the motor intermittently and thereby remove the
pump hose from the pump housing.
7. Check all of the dismantled parts
ð If necessary, replace parts with new ones.
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