Rotax 912 i Series Maintenance Manual page 419

SYSTEM DESCRIPTION
The engine is lubricated with dry sump forced
lubrication and is equipped with a trochoid oil
pump with an integrated pressure regulator. The
oil pump sucks the engine oil from the oil tank
via the oil cooler (optional) and forces it through
the oil filter to the individual lubrication points in
the engine.
CRANKCASE
The engine oil emerging from the lubrication
points accumulates on the bottom of crankcase
and is forced back to the oil tank by the constant
excessive pressure in the crankcase (blow-by
gases).
OIL PUMP
The oil pump is driven by the camshaft.
PURGING OF LUBRICATION SYSTEM
The oil circuit is purged via the air bleed line
attached to the oil tank.
SAFETY INFORMATION
WARNUNG WARNING
Danger of severe burns and scalds! Always
allow the engine to cool down to ambient tem-
perature before starting any work.
WARNUNG WARNING
Danger of serious injury!
During work on the lubrication system there is a
risk of injury due to pressure!
- Ensure that the engine is in the horizontal
position!
- Before starting repair work on the lubrication
system, ensure that it is no longer pressu-
rised!
Effectivity: 912 i Series
Edition 1/Rev. 0
BRP-Powertrain
MAINTENANCE MANUAL
CONNECTIONS FOR DISPLAY SYSTEMS
WARNUNG
Follow the instructions in the Installation Manual
regarding connections for instrumentation.
TEMPERATURE SENSOR
The temperature sensor is situated on the crank-
case and measures the oil inlet temperature.
PRESSURE SENSOR
The pressure sensor is situated on the ignition
housing and measures the oil pressure.
MAINTENANCE
As well as the maintenance and special checks,
see the relevant Maintenance Manual Line for
the respective 912 i Series engine type.
Whenever the lubrication system is re-
NOTE:
moved or disassembled, o-rings and
other sealing elements must be dispo-
sed of.
REMOVAL
OIL PUMP ASSY. REMOVAL
Preparation
- Switch the ignition key OFF
- Drain the oil.
ENVIRONMENT NOTE
Dispose of used oil according to local environ-
mental regulations.
WARNUNG
Use appropriate protective coverings to prevent
the ingress of debris particles into all discon-
nected lines and connections.
- Remove surrounding assemblies and detach
oil lines.
The assemblies and lines are only to be
NOTE:
removed if necessary and only as far as
is necessary!
NOTICE
NOTICE
79-00-00
Page 7
July 01/2012