35
Operation and maintenance, Discfilter HPF2200-series PFLC
7.5 Drive chain
NB Prior to servicing, read section 2.7.
The filter is equipped with a chain drive. For technical data, see Appendices A and D.
7.5.1 Checking and tensioning the drive chain
1. Turn the main power switch to the OFF (0) position and lock with a padlock.
2. Remove the motor cover to access the chain.
3. Stretch the chain by turning the drum by hand in the non operational direction.
4. Check the tension of the chain’s return section; it must be possible to move it between 25 and
50 mm, see Figure 7.21.
5. Adjust the chain setting, if necessary, with use of the chain tensioner, see figure 7.22.
6. Start operations again as described in section 5.1.
Figure 7.21 Displaying the correct slack of the drive chain and position of the tensioner.
