Lutz B70V, Translation Of The Original Instructions

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21
GB
6.4 Lubrication
No parts of the Lutz eccentric screw pump need be lubricated
at short intervals. The flanged-on drive units should be serviced
as follows:
B70V
3-phase motors:
The rolling bearings should be removed, cleaned and relubri-
cated after 8000 hours or two years of operation.
Geared motors:
The gear mechanism should be dismantled, cleaned and filled
with fresh lubricant after 8000 hours or two years of opera-
tion. Note the detailed specifications in accordance with the
make and type.
Variable speed gears:
Note the detailed specifications in accordance with the make
and type.
B70V-SR
Planetary gears:
Refer to the operating instructions for the gear.
Universal motors:
Refer to the operating instructions for the motor.
Compressed air motors:
Refer to the operating instructions for the motor.
6.5 Changing the stator
Only use PTFE stators and stator sleeves marked
with PTB-No. for flammable liquids.
Stator and rotor are wear parts. Their service life largely de-
pends on the prevailing conditions.
The residual liquid must be emptied through the outrun piece,
before dismounting.
In order to dismantle the stator, the pump foot must be un-
screwed and pulled off forcibly. Force the stator out of the pump
foot (stator sleeve). The soiled screw thread on the pump tube
and stator sleeve must be cleaned and lightly greased.
To replace the stator, place the first thrust ring in the stator
sleeve, force the new stator into the stator sleeve and place
the second thrust ring onto the stator. Note the nose and notch
on the sleeve and stator when replacing solid stators. Screw
the stator sleeve onto the pump tube.

The stator sleeve should only be screwed on
hand-tight!
7. Repairs
Repairs should only be made by the manufacturer or authorized
Lutz-dealers. Only use original Lutz spare parts.
Before sending back the appliance, following must be ob-
served:
• Residuals in the appliance can cause danger to the environ-
ment and human health. The appliance must be completely
emptied, rinsed and cleaned.
• Please advise which liquid has been pumped. A respective
safety data sheet must be attached to the return consign-
ment.