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UDI 5-3-2020
Maintenance Manual - 6Matic
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B - Replacing shaft seal set (10) and shaft guide seal (11):
1. Electrically disconnect the electric motor (51).
2. Remove the service cover (6)
3. Remove the plastic protection cover (54) on the gear motor, by means of removing the bolts
(55/56)
4. Remove the shear pin/nut (52/53) and the spacer ring (57)
5. Dismantle the worm gear motor by removing the attaching bolts (49/50) and pull-out the worm
gear motor over the drive shaft adapter (45).
6. Place the worm gear motor on a clean working surface.
7. Dismantle the shaft guide (43) by removing the attaching bolts (44) and pull out the guide shaft.
8. Replacing shaft seal set (10) and shaft guide seal (11); pay attention to direction of installation
of these items; lubricate the new seals with silicone grease.
9. Insert the drive shaft adapter in the shaft guide and install the shaft guide (43) back and tighten
the attaching bolts (44).
10. Install back the worm gear motor over the drive shaft adapter (45) and tighten the bolts (49/50).
11. Place the spacer ring (57) and mount the shear pin/nut (52/53); pay attention to the connection
between the drive shaft adapter (45) and the drive shaft sleeve (46).
12. Place the plastic protection cover (54) on the gear motor, tighten the bolts (55/56)
13. Electrically reconnect the electric motor (51).
C - Placing back the complete screen assembly (7, 8, 9 &13) into the filter housing:
1. Apply a thin layer of Ocean 7W or equivalent grease to the drive shaft (39).
2. Place the complete screen assembly in the filter housing.
3. Pay attention: The drive shaft (39) must be inserted into the shaft guide (19).
4. Close the service cover (6) and tighten the bolts (77/78).
5. Check that the adapter (13/4) and PE pipe (12) are firmly attached to the housing of the
reversing mechanism (13).
6. Apply silicone grease to the lid seal (2).
7. Fit the PE pipe (12) trough the nipple (73) of the the front cover (3)
8. Mount the front cover (3) and tighten the bolts.
9. Install the components of the glad for the PE pipe. Replace the seal (72). Connect the
stainless steel pipe (65) and attach connector (26).
10. Clean the auxiliary filter (see chapter 9.2)
11. Re-commission the filter unit as mentioned in chapter 6.2.
If multiple filters are installed, these steps must be performed separately on all filters.
