APRILIA Atlantic 300 Service Station Manual page 148

Engine
Refitting
- Always use a new oil guard when refitting
- Prepare the new oil guard by lubricating its seal-
ing lip.
- Preassemble the oil guard with the appropriate
tool, positioning the screws.
- Place the sheath over the crankshaft
- Insert the tool with the oil seal on the crankshaft
until it comes into contact with the crankcase
- Insert the adaptor bushing of the tool in the hole
on the crankcase.
- Position the oil guard by inserting the bracket
which is part of the appropriate tool
- Tighten the threaded bar onto the crankshaft up
to the end of travel
- Use the nut to move the base of the tool until you
can feel the end of the stroke of the oil seal driving
- Remove all of the tool components following the
procedure in reverse order.
CAUTION
DO NOT LUBRICATE THE KEYING SURFACE ON THE EN-
GINE CRANKCASE
CAUTION
ORIENT THE OIL GUARD BY POSITIONING THE CHAIN
HOUSING CHANNEL FACING DOWNWARDS. ONCE THE
POSITION IS REACHED, DO NOT RETRACT THE OIL
GUARD. FAILURE TO COMPLY WITH THIS RULE CAN
CAUSE A WRONG POSITIONING OF THE OIL GUARD
COUPLING SHEATH.
CAUTION
FAILURE TO COMPLY WITH THIS ASSEMBLY PROCE-
DURE CAN SERIOUSLY DAMAGE THE ENGINE DUE TO
THE WRONG TENSIONING OF THE OIL PUMP DRIVING
CHAIN
ENG - 148
ATLANTIC 300 i.e.