WÄRTSILÄ VASA 6L32, Инструкция по эксплуатации

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4 When reassembling the impeller, tighten the screw to
torque, see chapter 07.
5 Check that the O-ring (2) and non-return valve O-rings
between pump and engine pump cover are intact and in posi-
tion when re-installing the volute casing. Check that the volute
casing is in position.
6 Mount the clamp and tighten the screws.
b) Disassembling and assembling of mechanical shaft seal
1 Remove the impeller according to pos. a) above.
2 Carefully dismantle all seal details. Sealing rings are very
fragile.
3 Take particular care not to damage sealing surfaces as a
slight scratch may disturb the sealing function.
4 Replace the complete seal if it is leaky, or if sealing
faces are corroded, uneven or worn. Avoid touching the sealing
faces with fingers.
5 Reassemble the details in proper order and install the
impeller according to pos. a) above. Do not forget the thin
washer between the spring and the O-ring.
c) Replacing of bearings and shaft seal.
1 Remove the pump from the engine.
2 Disassemble the impeller and mechanical seal according
to pos. a) and b) above.
3 Loosen the screws (14) and remove the pressure plate (15).
4 Pull off the gear wheel without using any tool. If the gear
wheel does not come loose, a few strokes with a non-recoiling
hammer will help. (The conical ring elements (13) come loose
together with the gear wheel.)
Using an extractor will only damage the shaft (axial scratches).
5 Loosen the bearing retainer (11) by opening the screws
and drive out the shaft and bearing.
6 Check the seal (16) and the bearings for wear and dam-
age. If the seal is leaking, knock it out using a suitable brass
piece.
7 Remove the bearings. Press the bearing by its inner ring
with a suitable pipe.
8 Inspect the shaft for wear and damage.
9 Oil the new seal and insert it by pressing against the
shoulder.
19 Cooling Water System 32-200050
19 - 6 WÄRTSILÄ 32