32
Tanco Autowrap 1300 S
Operator’s manual
15.0 PROCEDURE OF TROUBLE SHOOTING.
15.1 SOLENOID
VALVES.
When checking if the Solenoid valves are receiving electric power, you do this in the following
way:
1.
Unscrew the nut that holds the solenoid.
2.
The solenoid is easy to move without electric power.
3.
Push the current function on the control unit (See * below). If the solenoid gets power, it
will be difficult to move, it "sticks". This is the best and easiest way to check if the
solenoid valve is receiving electric power. Another way is to hold a screwdriver up to the
magnet. If it "sticks", the solenoid is receiving electric power.
*
There are two solenoid valve on the 1300S machine.
The safety valve (See Fig 13-1) is located on top of the adjuster block on the front of the
machine. It must be energized for the wrap arm to turn. When the reset button is pressed
on the control unit an arrow appears on the left hand side of the monitor screen, the
safety valve should now be energized, if the reset button is pressed again the safety
valve is deenergised. If the safety arm is tripped the reset button must be pressed to
restart the wrap arm.
The cutter diverter valve (See Fig 13-1) located on the inlet block on the front of the
`machine. This puts the wrap arm into slow speed and opens the cutter, it is
automatically energized during the wrapping by the control unit. It can be manually
energized by pressing the
+
button on the far right of the control unit.
If the electric supply is in order and this function fails, the reason can be dirt that tightens
or prevents the sliding shaft (spool) from moving .
Try to maneuver the function manually, by pressing the point of a screwdriver into the
end of the valve housing.
The power supply to the valve can also be measured with a voltmeter, but then the contact must
be connected to the solenoid, so it is using power.
To have reliable functions, the voltage should not be lower than 11,5 volts, even if the solenoid
valve usually works with a little lower voltage.
Take care so that the machines moving parts, do not cause damage to persons
or objects.
16.0 TROUBLE
SHOOTING.
16.1
THE MACHINE DOES NOT FUNCTION.
a)
Even if the gauge shows enough pressure and there is no reaction in the machine. The
reason could be that one, (or both), of the quick-couplers does not open for the oil.
Change quick couplers.
Hydraulic lock
. This occurs if you try to send oil in the opposite direction against the
non-return valve. This results in pressurized oil between the non-return valve and the
quick coupling and prevents connection of the quick coupling. The only way to discharge
the pressure is to open the quick coupling using two 27 mm spanners.
b)
The counter pressure could be too high.
(See chapter 14 ).
(Disturbances of this type are most likely in the first days that the machine is in use).
