Operating and Maintenance Instructions
Submersible Mixer GTWS/B/I
740/1040/1540/204/254/304
MTe12318
a1
p.
FRANZ EISELE u.SÖHNE GmbH u.Co.KG
Telefon 07571/109-0
Pumpen- und Maschinenfabrik
Telefax 07571/10988
D-72488 Sigmaringen
www.eisele.de . [email protected]
4/8
4.3 Direction of rotation
Select the “thrust“ direction. The propeller should rotate anti-clockwise (GTWS740/1040) as you
look at it from the frontside of the propeller, clockwise at GTWS 1540/204/254/304.
The original EISELE switch has a phase inverter. If the propeller rotates in the wrong direction, press
the screwdriver into the slot in the plug and rotate the contacts by 180° until the phase
inverter is re-engaged.
4.4 Checks
If there are no obstacles in the tank, can the mixer make contact anywhere?
Does the mixer also turn (two-phase cycle or blockage)? Switch off immediately and do not wait until
thermal contacts are triggered!
All screws and connections are to be checked for tight fit. These checks are to be repeated at regular
intervals.
The wire cable /plastic cable must not rub or jam anywhere.
The anti-rotation device must be secured with additional limit stops in such a way that the propeller
does not make contact even if the retaining bolts work loose.
4.5 Attention
When moving the mixer, pay attention to the connection cable.
The wire cable must always be taut. With a loose wire cable, the mixer could suddenly swing against
the cable and damage it.
Do not operate the mixer half submerged. Vibrations on the mixer and walls are too great.
Operation is only permitted when the mixer is covered with at least 0.6 m of fluid.
If oscillations and vibrations beyond the normal amount occur during operation, the unit is to be shut
down immediately and inspected. This also applies to all fastenings, connections and cable clamps.
5. Maintenance and inspection
All maintenance and inspection work etc. may only be carried out when the electrical system is to be
disconnected and protected against being switched on again.
During all inspection and maintenance work, no explosive atmosphere may exist.
Maintenance and service work may only be carried out by qualified, experienced personnel.
5.1 Cleaning
The mixer is to be regularly cleaned of external encrustation and blockages.
If corrosion becomes visible, it must be rectified by suitable means.
5.2 Check connection cable and fastenings
The motor cable is to be checked at regular, short intervals for bends and pinches as well as for
damage.
The cable protection system (protective tube, cable clamps) is also to be checked for damage, pinches,
moved or loose clamps etc.
