Zetor PROXIMA PLUS 90 2012, Operator'S Manual

Page: 185 / 212

184
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.