Husqvarna DM220 Workshop Manual page 22

11
22
ROTOR
Gear box cover side –
bearing replacement
Remove the circlip and wavy
washer.
Remove the bearing with a
counter stay device.
Replace the seal ring.
Press in the new bearing.
Fit the wavy washer and
circlip.
Fitting with press
Installing the rotor shaft in the bearing is difficult to do without a pressing
tool. When installing, pressure forces will arise between the outer and inner
15,5 mm
ring, which means you must avoid assembling by knocking.
Support the gear box cover with a few pieces of wood in the press. The press
force is applied to the rotor shaft end at the collector with dismantled sensor!
Push the shaft completely against the stop. Make sure the shaft's stop has
reached the ball bearing by measuring the height of the worm gear above the
!
gear box cover, which must be 15.5 mm.
Mount the speed sensor – thread locking
Do not forget to re-install the speed sensor on the shaft end! The sensor must
be locked with Loctite thread locker.
Gear box cover side – bearing
replacement
Remove the circlip with circlip pliers and
the wavy washer under this.
Use a counter stay device to pull out the
ball bearing.
The seal ring under the ball bearing must
also be replaced. Use a counter stay device
to remove the seal.
Press in the seal ring using a suitable
socket. The seal ring's spring side should
face the gear housing, with the flat side
facing the rotor.
Press in the new bearing with a socket
that provides support to the outer ring.
Press the bearing in fully into the stop in
the bearing seat.
Fit the wavy washer and circlip.