iDura 05-35
Version 1.0v-11/2020
© Verder International B.V
10 | Page
6 Maintenance
Only trained service technicians should be employed
for fitting and repair work. Present a pumped medium
certificate (DIN safety data sheet or safety certificate)
when requesting service.
6.1 Hose Change
Risk of injury!
u
Always isolate the power supply before working on the
pump.
u
If inspection cover is removed for cleaning the pump cavity,
isolate the inverter until inspection cover is replaced.
The hose change involves removal and re-installing the
port flanges.
Disconnect inlet and outlet pipework. Clear the area to
provide safe working space and clearance to replace the
hose.
6.1.1 Draining Lubricant
Checklist:
[
Motor isolated.
[
System secured against being switched back on again.
Slip hazard due to spilt lubricant!
u
Care must be taken when lubricant is drained into
a container.
u
Dispose of used lubricant in accordance with local
laws and good environmental practices.
1. Remove the drain plug at the rear of the pump.
2. Drain the lubricant into a suitable container.
3. Remove the lower flange and allow any excess lubricant
to drain out.
6.1.2 Hose Change Using Inverter
Risk of injury if the hose is expelled too quickly!
u
Keep body parts clear of the rotor which presents an
entrapment risk.
u
Set speed dial to minimum position. Disable and
disconnect any remote control that has been programmed
into the inverter.
u
Slowly remove the hose by using the inverter to turn the
pump at low speed.
1. Remove both the flanges. Remove and dispose of both
clamp rings (where fitted).
2. Set directional dial to whichever direction is preferable,
and the speed dial to minimum setting.
3. The motor will slowly drive out the hose. If at this point you
are performing inspection on the rotor or pump cavity, turn
off inverter and lock-out using an appropriate lock-out-tag-
out.
4. Clean the pump housing.
5. Inspect the flanges for damage and signs of wear.
6.1.3 Hose Change Manually
Risk of injury if the hose is expelled too quickly!
u
When performing a hose change manually, turn directional
switch on inverter to central “0” position, power off and lock
out the inverter using the isolator switch. Allow 10 minutes
for internal circuits to de-energise.
1. Remove both the flanges. Remove and dispose of both
clamp rings (where fitted).
2. Remove the fan cover and turn the fan shaft by hand or
using suitable leverage. Care must be taken not to damage
the fan blades when using this method.
3. Clean the pump housing.
4. Inspect the flanges for damage and signs of wear.
6.1.4 Re-installing the Hose, Port Flanges,
Lubricant Refill and Fitting the Inspection
Window
1. Apply lubricant to new hose surface and insert into the
pump inlet.
2. When the hose is installed by
using the inverter
controls
in the opposite direction will turn the rotor to drive the hose
into the pump.
3. When the hose is installed
manually
, turn motor cooling
fan in opposite direction to drive the hose into the pump.
Ensure the hose is installed as indicated in the Dura 05-35
operating manual, section 5.6 Flange Assembly.
4. Follow step by step the instructions listed in Dura 05-35
operating manual for how to install the port flanges, refill
the lubricant and fit the inspection window.
WARNING
CAUTION
WARNING
CAUTION
CAUTION