57Maintenance
6.3.4 Removal and installation of the drain pump
For removing the drain pump the steam cylinder must be removed rst (see chapter 6.3.1).
1. Detach electric cables (polarity of the cables need not be observed).
2. Release hose clamps and remove the hoses from the connectors.
3. Undo the two screws on the bottom of the housing with Phillips screwdriver, then remove drain pump.
4. Separate the pump body from the pump drive: release the lock on the bayonet catch, then counter-
rotate the pump body and the pump drive. Remove O-ring.
The assembly and the installation of the drain pump follows the reverse sequence of the removal.
Before assembling the pump, check O-ring for damage and replace if necessary. Then, place the O-ring
on the centering collar and moisten the O-ring with water.
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