ENGLISH
9
4.1 Left housing half
Remove the shaft seal rings and heat the housing half, using a hot plate, to a tem-
perature of approximately 150° C.
G
ROOVED BALL BEARING OF THE CRANKSHAFT
1
Use a suitable mandrel to press the grooved ball bearing inwards.
Insert a new grooved ball bearing from inside, pressing it all the way into the recess.
G
ROOVED BALL BEARING OF THE COUNTERSHAFT
2
Use a suitable mandrel to press the grooved ball bearing inwards.
Insert a new grooved ball bearing from inside, pressing it all the way into the recess.
!
CAUTION
!
A
PPLY ONLY SLIGHT PRESSURE WHEN INSERTING GROOVED BALL BEARING INTO THE HOUSING
SO AS TO PREVENT DAMAGING OF THE HOUSING
.
S
HAFT SEAL RING OF THE CRANKSHAFT
3
Insert a new shaft seal ring from outside, the sealing lip facing inwards. The seal ring
must be 2 mm (0.08 in.) below the edge of the housing.
S
HAFT SEAL RING OF THE COUNTERSHAFT
4
Insert a new shaft seal ring from outside, the sealing lip facing inwards. The seal ring
must be flush with the edge of the housing.
4.2 Right housing half
Remove the shaft seal ring and heat the housing half, using a hot plate, to a tempe-
rature of approximately 150° C.
G
ROOVED BALL BEARING OF THE CRANKSHAFT
5
Use a suitable mandrel to press the grooved ball bearing inwards.
Insert a new grooved ball bearing from inside, pressing it all the way into the recess.
G
ROOVED BALL BEARING OF THE COUNTERSHAFT
6
Use a suitable mandrel to press the grooved ball bearing inwards.
Insert a new grooved ball bearing from inside, pressing it all the way into the recess.
!
CAUTION
!
A
PPLY ONLY SLIGHT PRESSURE WHEN INSERTING GROOVED BALL BEARING INTO THE HOUSING
SO AS TO PREVENT DAMAGING OF THE HOUSING
.
E
NGINE HOUSING
N
OTE
: R
EAD THROUGH THE FOLLOWING SECTION BEFORE COMMENCING WORK
. T
HEN DETERMINE IN WHICH ORDER THE PARTS MUST BE MOUNTED TO ENSURE THAT
THE HOUSING HALVES NEED NOT BE HEATED MORE THAN ONCE TO INSERT THE BEARINGS
.
B
EFORE PRESSING OR
-
IF NECESSARY
-
HAMMERING OUT THE BEARINGS
,
PLACE THE HOUSING HALVES ON A SUFFICIENTLY LARGE PLANE SURFACE
(
AFTER REMOVING
THE DOWEL PINS
). T
O PREVENT DAMAGING OF THE SEALING SURFACE
,
ENSURE THAT THE ENTIRE SEALING SURFACE OF THE HOUSING IS PROPERLY RESTING ON THE
SUPPORTING SURFACE
. W
E RECOMMEND TO PLACE THE HOUSING HALVES ON A WOODEN BOARD
.
A
MANDREL SHOULD NOT BE USED TO INSERT BEARINGS OR SHAFT SEAL RINGS
. H
OWEVER
,
IF A SUITABLE PRESSING DEVICE IS NOT AVAILABLE
,
A MANDREL CAN BE
USED VERY CAREFULLY TO INSERT BEARINGS OR SHAFT SEAL RINGS
. A
T A HOUSING TEMPERATURE OF APPROXIMATELY
150° C,
THE COLD BEARINGS WILL SLIDE INTO
THEIR SEATS QUITE EASILY ANYHOW
,
REQUIRING ALMOST NO ADDITIONAL ATTENTION
.
I
F THE BEARINGS ARE NOT LOCKED TIGHT IN THEIR SEATS AFTER COOLING
,
THEY MUST BE EXPECTED TO CHANGE THEIR POSITION WITHIN THE HOUSING AS THE UNIT
HEATS UP
. I
N THIS CASE
,
THE HOUSING MUST BE REPLACED
.
1
2
3
4
5
6
4.0 WORK TO BE PERFORMED ON INDIVIDUAL COMPONENTS
