Husqvarna F2101R1, Руководство по ремонту

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17 ENGINE
17.4.2
196
Working on the left section of the engine case
Remove all dowels.
Remove shaft seal ring
O
of the crankshaft,
8
shift shaft
and
fD
countershaft.
Remove oil nozzle
8
for the coupling lubrication.
Remove oil nozzle
0
for piston cooling.
Remove screws (D. Remove the bearing retainers.
Remove any remnants of sealing compound and clean the
section of the engine case thoroughly.
-
Warm the section of the engine case 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 and washer @ to drop out of
the bearing seats.
Info
Any bearings that remain in the section of the engine
case must be removed using a suitable tool.
Mount washer @.
Insert the new cold bearings in the bearing seat 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 in, ensure that the section of the
engine case lies flat in order prevent damage.
Only press the bearings in using the outer bearing
race; otherwise, the bearings will be damaged when
they are pressed in.
- After the section of the engine case 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 crankshaft with the open
side facing out so it is flush.
Press in shaft seal ring
8
of the shift shaft so it is flush with
the open side facing inward.
Press in shaft seal ring
fD
of the countershaft so it is flush
with the open side facing in.
Mount and tighten oil nozzle
8.