WÄRTSILÄ Vasa R22, Instruction Manual

Page: 228 / 297

18.10.4 Reassembly
The reassembly is performed in the reversed order.
1 Remount the ball bearing in the front plate, the protec-
tive washer turned outwards. Lock with the locking ring.
2 Oil the O-ring (7) , Fig 18-9. Insert the stationary sealing
ring (6) in the front plate. Take care not to damage the sealing
faces and check that the ring enters the pin (11).
3 Clean the drive screw carefully and enter the sealing
unit (13) without the coal ring on to the shaft. Take care that
the rubber bellows are pressed against the seal spring support-
ing washer. Keep the seal in this position for a moment to
enable the bellows to fix. A drop of lubricating oil on the drive
screw shaft will facilitate reassembly.
4 Put the coal ring into position, the smaller sealing face
upwards and the grooves matching the marks.
5 Place the front plate (10) over the drive screw shaft jour-
nal.
6 Force the ball bearing inner ring
against its shoulder on
the drive screw. Use a suitable sleeve matching the bearing
inner ring.
7 Lock with the ring (3).
8 Install the end plate unit and screw in the set in the
pump housing. Do not forget the O-ring (12) which seals be-
tween the pump housing and the front plate. Fill the ball
bearing with grease. See chapter 02., section 02.2.7.
9 Install the coupling half (1) on the pump shaft and fasten
the pump to the bracket. Check that the clearance between the
coupling halves (X in Fig 18-9) is 2 mm.
10 If the electric motor has been disconnected or
changed, check that it rotates in the right direction by switch-
ing it on a few times.
22-9601 Lubricating Oil System 18
VASA 22 18-19