25
6.6
Rotating valves
The rotating valves have gland seals that must be tightened by the adjusting nuts when the gland seals are
leaking dust. It is important that the pressing bush is not on a angle. Tighten the nuts 180° and test the
rotating valves are still leaking dust. Do not over tight because that will damage the gland seal.
Replace rotating valve seals
Replace the rotating valve seals when they are damaged or worn out.
1)
Remove the two big bag adapters by removing the 8 bolts.
2)
Remove the two bolts of the drive motor plate that is fixed to the body of the dust hopper. Now it is
possible to rotate the rotating valves by rotating the drive motor with drive motor plate for more than
180°. (see figure below).
3)
Pull out the main plug and remove the bolts and clamp strip of the rotating valve blade.
