Zato CAYMAN FCE II Series, Safety, Operation And Maintenance Manual

Page: 90 / 96

90 / 96
CAYMAN
Version 01 - Revision 00
09/05/2017
problem Cause solution qualification required
The speed of the upper
jaw is less than the set
parameters only in one
direction, while the speed
in the opposite direction
is correct�
There is counter-pressu-
re on the hydraulic cylin-
der return side�
Check the main control
valve of the machine by
referring to the machi-
ne’s manual�
Mechanical Technician
The speed valve is not
working properly�
Replace the speed valve�
Manufacturer's Techni-
cian�
The attachment does not
rotate�
The machine is not sen-
ding the right pressure to
the attachment hydraulic
system�
Adjust the pressure from
the machine by referring
to its manual;
Mechanical Technician
The hydraulic motor is
broken� Replace the hydraulic
motor� Manufacturer's Techni-
cian�
The rotation control valve
is broken�
Replace the control valve�
Manufacturer's Techni-
cian�
The rotation control valve
is not calibrated properly�
Adjust the control valve�
Manufacturer's Techni-
cian�
The hydraulic tubes are
not connected or they are
connected incorrectly�
Check and properly con-
nect the hydraulic tu-
bes to the rotating head
by referring to
“5.4.2
hydraulically connec-
ting the attachment to
the machine” on page
48 �
Operator
The attachment rotation
speed is abnormal in one
of the two directions�
The oil flow from the ma-
chine is incorrect either
on the delivery or return
line�
Adjust the oil flow from
the machine by referring
to its manual and check
whether there are any le-
aking hydraulic tubes�
Mechanical Technician
The direction control val-
ve is broken� Replace the direction
valve unit� Manufacturer's Techni-
cian�
The safety valve is not
working properly� Set the safety valve pro-
perly� Manufacturer's Techni-
cian�
There are vibrations du-
ring rotation�
The oil flow from the ma-
chine is too low or too
high� Adjust the oil flow from
the machine by referring
to its manual;
Mechanical Technician
The set pressure is too
high�
Check and set the pres-
sure on the flow regula-
tion valves�
Manufacturer's Techni-
cian�
The hydraulic motor is
not working properly or is
broken� Check and, if necessa-
ry, replace the hydraulic
motor�
Manufacturer's Techni-
cian�
tab. 16 Troubleshooting