Slide Bearings - Husqvarna K3600 Mk II Workshop Manual

SLIDE BEARINGS

Slide bearings
Gear shafts, the driveshaft and the non-driving shaft are all fitted with slide
bearings. These four bearings are identical.
Replacement of slide bearings – rarely necessary
It is rarely necessary to replace slide bearings as damage to these parts is a very
infrequent occurrence. If, in spite of everything, these bearings do suffer
damage, the first sign will be a loss of motor power, which in turn means that
the motor housing and/or the cover will have suffered damage as the result of
deficient control on the part of the gears. In such instances, the motor must
be replaced.
Inspection when changing driveshaft bearings
If the driveshaft bearings are changed, it is important to check the condition
of the slide bearing nearest the roller bearing as a loose roller bearing transfers
the load to the slide bearing, which is thereby exposed to significant wear.
Check by placing the shaft in the non-driving shaft bearings and comparing.
Replace slide bearing if necessary.
Tools
There are no special tools in production for replacing slide bearings. The
following simple tool solution works well:
To remove slide bearings, use a ½ inch screw tap. A nut is used in the three
sealed bearing houses to provide resistance in the bottom.
The driveshaft is used for fitting. In order to minimise the risk of surface
damage to the driveshaft, use a shaft from a scrapped motor.
Removal
Driveshaft slide bearings
in motor housing
Screw the screw tap into the
bearing a few turns.
Turn the jaws in the vice with
the soft side (fibre jaws) facing
upward.
Turn the motor housing. Tap
out the slide bearing using a pin
punch.
Removal
Driveshaft slide bearings in motor
housing
Screw the screw tap a few turns down
into the bearing so that it becomes secu-
rely attached.
Turn the jaws in the vice with the soft
side (fibre jaws) facing upward. Tighten
the jaws so that the motor housing has a
substantial support surface. Wooden
blocks may be used instead of fibre jaws.
Under no circumstances may metal jaws
be used – this damages the sealing plane.
Turn the motor housing with the sealing
plane towards the vice. Place a pin punch
against the screw tap and tap out the
slide bearing.
22
43