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7.2 Troubleshooting
Fault
Manual lever on pump
nozzle sticking.
Pump starts but does not
pump.
Please contact Service with all other faults. For contact data see the Legal Notices.
Check on the manufacturer's website www.prominent.com whether a more recent version of the operating
instructions is available, as further remedies may have been developed in the meantime.
7.3 Spare parts for the DULCO
Whilst holding the Allen key firmly with one hand, remove the
domed nut (1) from the other side with a size 10 socket.
8.
A seal mount (3) is located behind the spring at the rear end
of which is located the second seal (4).
9.
After removing the domed nut, the spring and the seal mount
with the second seal, you can push out the valve rod (10)
from this side towards the hose connection already removed
and replace the third seal (9).
10.
Clean and check all components.
11.
Replace all faulty or defective parts.
12.
Finally fit the pump nozzle in the reverse order to that already
described and test the leak-tightness of the pump nozzle at
the end of a water line with 3 ... 4 bar pressure.
ð The pump nozzle is ready for use again.
User qualification: trained user, see
n
fication' on page 9
Cause
Joint stuck.
Maximum delivery height and/or
viscosity/density exceeded.
Inner tube blocked.
Couplings, rotor faulty.
Trans
®
User qualification: Service, see
n
tion' on page 9 .
Spare parts should only be ordered and fitted through Service.
Repair, faults and spare parts
Ä Chapter 2.2 'User quali‐
Solution
Dismantle the pump nozzle, clean it and
replace any faulty components if neces‐
sary.
Adjust the delivery height and/or viscosity.
Check and possibly clean inner tube.
Check the couplings and rotor and
replace if necessary.
Ä Chapter 2.2 'User qualifica‐
21
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