Rotax 912 i Series Maintenance Manual page 443

SYSTEM DESCRIPTION
The electric starter is a DC motor with a perma-
nent magnet and carbon brushes. The gear-
tooth system of the armature shaft is perma-
nently engaged in the idler gear. During the star-
ting process the sprag clutch forms a connection
to the crankshaft via the idler gear and free
wheel gear. As soon as the engine speed is
higher than the speed generated by the electric
starter, the sprag clutch breaks the connection.
SAFETY INFORMATION
WARNUNG WARNING
Danger of severe burns and scalds!
Always allow the engine to cool down to ambient
temperature before starting any work.
NOTICE
WARNUNG
Danger of damage to engine! There is a risk of
short circuits and cable fires during work on the
electric starter!
- All installation work on the electric starter
must be carried out with the engine switched
off and the battery (negative pole) discon-
nected!
- Ignition, main and LANE selector switches
must be "OFF"!
MAINTENANCE
As well as the maintenance and special checks,
see the relevant Maintenance Manual Line for
the respective 912 i Series engine type.
REMOVAL
Preparation
- Switch the ignition key OFF
- Disconnect the battery (negative pole)
ELECTRIC STARTER REMOVAL
Step
1 Disconnect the positive pole on the
electric starter.
Effectivity: 912 i Series
Edition 1/Rev. 0
BRP-Powertrain
MAINTENANCE MANUAL
Procedure
Fig. 1
1. Positive (+) cable
3. Washer
NOTICE
WARNUNG
Hold the M5x145 hex. screw still with a suitable
tool. If the hex. screw is turned, then the electric
starter itself is unscrewed!
Step
2 Loosen the 2 M5 hex. nuts on the rear of
the crankshaft housing.
Fig. 2
1. Electric starter
3. M5 hex. nuts
2. Hex. screw
Procedure
2. Crankshaft housing
4. M5 hex. screw
80-00-00
Page 5
July 01/2012