170
ADJUSTMENTS 
E764 E765   
ADJUSTMENT OF CLUTCH PEDAL 
PLAY 
Correct play between the piston rod of 
the pedal and piston of the main cylinder 
is not adjustable – it is adjusted by the 
manufacturer. Mutual positions of the 
piston rod and piston rod eye (1) so that 
when the piston rod is fully extended 
from the cylinder, the play between the 
pedal and upper stop screw (2) is 0.1-
0.2mm. Then position of the piston rod 
should be secured against the eye using 
the nut (3). After adjustment check 
whether the dust cover of the cylinder is 
not deformed and reposition it if neces-
sary. 
 
 
BLEEDING OF CLUTCH HYDRAULIC 
CIRCUIT 
Carry of bleeding using the same proce-
dure as bleeding of the rear brake sys-
tem. The bleeding screw of the hydraulic 
circuit for disengagement of the clutch is 
installed on the disengagement cylinder 
of the clutch (1). 
The expansion tank that is com-
mon for both the brake and clutch 
circuits shall be refilled with new 
fluid only. 
Brake fluid in the entire brake system in-
cluding hydraulic circuit for disengage-
ment of the clutch shall be replaced after 
two years of operation. 
 
 
ENGINE TRAVEL CLUTCH 
ADJUSTMENT 
The travel clutch is designed in such 
manner that no adjustment is required 
during the entire service life of clutch 
plate lining. Full wear of the plate be-
comes evident by clutch slipping.