Gilera 633721, Workshop Manual

Page: 122 / 407

N.B.
IF THE TRAILING SPEED OF THE CRANKSHAFT IS LOW AND COMBINED WITH STRANGE
NOISE, CHECK THE FREEWHEEL OF THE TORQUE LIMITER (SEE THE "FLYWHEEL AND
STARTER SYSTEM" CHAPTER).
STARTER MOTOR
Specification Desc./Quantity
Type Mitsuba sm13d
Power 0.9 kW
BATTERY
Specification Desc./Quantity
Capacity 14 Ah
Starting current 125 A
START-UP REMOTE CONTROL SWITCH
Specification Desc./Quantity
Type SEALED
Maximum load 150 A continuous
STARTER TRANSMISSION
Specification Desc./Quantity
Ring gear and freewheel coaxial to the flywheel. Intermediate gear with built-in torque limiter.
The starter system has a transmission between the motor armature and engine shaft equipped with
freewheel coaxial to the flywheel and torque limiter on the intermediate shaft.
The limiter is calibrated to 10 kgm (100 Nm); this component protects the structure of the engine and
the starter kinematic mechanism in the event of incorrect starting with consequent inverse rotations.
The freewheel is used for a sufficiently silent starting.
The starter control (energised remote control) is slaved to enabling signals by the side stand and the
emergency OFF/RUN switch, which does not allow starting given dangerous conditions.
The starter control circuit is not controlled by the immobilizer system, therefore before insisting on the
starter system, check the consensus of the immobilizer.
In order to check the enabling switches circuit, see the «Electrical system» chapter, whereas to check
the engine shaft control transmission, follow what is described in the «Flywheel and starter system»
chapter.
- Remove the three bands shown in the figure for
an easier removal of the flywheel cover, remove
the feed hoses and disconnect the return hose
from the pump cover.
N.B.
THE BANDS MUST BE REPLACED. TO RE-
MOVE THEM, OPEN WITH A SCREWDRIVER
OR CUT THEM.
BE CAREFUL NOT TO DAMAGE THE PLASTIC
UNIONS.
Engine
Nexus 500 euro 3
ENG - 122