2.6
Residual risks
Safeguards may become ineffective if the devices are not used according to the chemical
resistance chart.
Further residual risks that are linked with the repair or maintenance of the eccentric worm-
drive pump cannot be reduced constructive or by taken further precautions. If necessary,
they are mentioned at the appropriate passage.
Information
Always observe the chemical resistance chart when selecting motor,
pump, hand nozzles and hoses.
3.
Description of pump
1
2
3
7
4
8
9
Fig. 1: Sectional drawing of F 550 and F 560
1
Centering disk
2
Union nut
3
Outlet tube
4
Stator housing
5
Open mechanical seal
6
Closed mechanical seal
7
Torsion shaft
8
Stator
9
Eccentric worm
In the 3A version, parts 7 (torsion shaft) and 9 (eccentric worm) are welded together.
Original operating instructions Eccentric worm drive pump F 550 and Sanitary pump F 560
5
1
2
6
3
7
4
8
9
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