PGO BR-500 - Page 78

The limiter assembly cannot be overhauled. Incase of irregularities on the toothed discs, replace the assembly.
- Check that the toothing is not
worn.
- Check the diameter of the
two ends.
Gear connection
diameter:
d 12
- 0 - 0,011
mm
Also check the capacity
diameter on the flywheel cover
and on the engine crankcase.
Flywheel cover
connection diameter:
d 12
+ 0,034 -0,016
mm
Engine crankcase
connectiondiameter:
d 12
+ 0,034 -0,016
mm
N.B.:
The torque limiter is
provided with 4 gears that
have the function?of clutch
driving plates.
Driven plates consist of 4
Belleville washers provided
with grooved profiles; this
assembly allows transmitting
torques lower than 10 kgm.
In case of incorrect start-up
manoeuvres, the limiter
prevents any kicks, with
consequent reversal of
direction of the driving shaft
which would impair the engine
structure.
PGO BR-500 ENGINE
P.10-59
Flywheel and Start-up