Husqvarna FC 450 2014 Repair Manual page 145

17 ENGINE
Main work
Remove all remaining dowels.
Remove oil nozzles
Remove the bearing retainer of main shaft bearing (D, of countershaft bear­
8
ing and of shift drum bearing@».
Remove any sealing mass remnants and clean the engine case section
thoroughly.
Warm the engine case section in an oven.
Guideline
11
so c
(302 °F)
0
Knock the engine case section against a level wooden plate. 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.
Press out shaft seal ring
309029-10
• Info
I
Do not press the shaft seal ring from the outside toward the inside, as
there is a small collar on the inside.
Warm the engine case section again.
Guideline
11
so c
(302 °F)
0
Insert the new cold bearings into the bearing seats of the hot engine case section
and, if necessary, use a suitable press drift to push the bearing from the inside to
the outside, all the way to the stop or so it is flush.
• Info
I
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 bear­
ings will be damaged when they are pressed in.
After the engine case section has cooled, check that the bearings are firmly
seated.
• Info
I
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.
Press in the shaft seal ring from the outside toward the inside, with the open side
facing outward.
Position all bearing locks. Mount and tighten the screws.
Guideline
Screw, bearing retainer
Mount and tighten oil nozzle
Guideline
Oil nozzle, piston cooling
Mount and tighten oil nozzle
Guideline
Oil nozzle for conrod bearing lubrica­
tion
O 8.
and
(D
of the crankshaft from the inside to the outside.
MS 6Nm
(4.4 lbf ft)
O.
MS 2 Nm
(1 .5 lbf ft)
8.
M6x0.75
143
Loctite 2701
® TM
Loctite ® 243 ™
4 Nm (3 lbf ft)