Husqvarna F2203P4, Руководство по ремонту

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18 ENGINE
18.4.2
198
Blow out the oil channel with compressed air and check that
it is clear.
•
Working on the left section of the engine case
Remove all dowels.
Remove shaft seal ring
O
of the shift shaft and
8
of the
countershaft.
Remove oil nozzle
(D
for piston cooling.
Remove screws
8-
Remove the bearing retainers.
Remove any remnants of sealing compound and clean the
engine case section thoroughly.
-
Warm the engine case section in an oven.
Guideline
11
so
0
c
(302 °F)
Knock the engine case section against a level wooden board.
This will cause the bearings to drop out of the bearing seats.
•
Info
I
Any bearings that remain in the engine case section
must be removed using a suitable tool.
Insert the new cold bearings in the bearing seats of the
heated section of the engine case; if necessary, use a
suitable press drift to push them all the way in and make
them flush.
Info
When pressing the bearing in, ensure that the engine
case section is level to prevent damage.
Only press the bearings in via the outer bearing race;
otherwise, the bearings will be damaged when they
are pressed in.
- After the engine case section has cooled, check that the
bearings are firmly seated.
Info
If the bearings are not firmly seated after cooling, it
is likely that they will rotate in the engine case when
warm. In this case, the engine case must be renewed.
Mount the dowels.
Press in shaft seal ring
O
of the shift shaft so it is flush with
the open side facing in.