Orved N Serie Manual De Uso página 58

TROUBLESHOOTING
PROBLEM
The tray is not sealed pro-
perly.
Partial sealing always on
the same side of the tray.
Insufficient vacuum (the
machine does not pro-
ceed with the gas flushing
phase).
Film not cut or cut badly.
Tray pressed.
Packaging cycle interrup-
ted during gas flushing
phase, with "gas alarm"
displayed
Gas consumption exces-
sive.
Smoke from film retainer
suction cups.
58
POSSIBLE CAUSES
C
• Pistons blocked (sealing plate not
lowered).
• Plate cold (heating wire defective).
• The Film moves during the work cycle be-
cause the suction cups of the film
blocked.
• The Gas enters the vacuum chamber too
rapidly, pressing the film into the tray.
• One of the plate heating wires
not get heated.
• Machine calibration not done.
• Leakage from neoprene
vacuum chamber.
• Leakage from neoprene gaskets
en upper tray and sealing unit.
H
• Solenoid valve blocked
• Connection of red and black tubes and
quickrelease couplings of the sealing unit
I
not correct.
• Poor vacuum pump performance because
of dirty oil.
• Vacuum pump performance poor because
L
of exhaust filter blockage.
• Vacuum pump performance poor even after
changing the oil.
M
• Tray die model not compatible with the
plate or sealing unit model.
N
• Blades worn .
• Gas percentage programming value less
than 99%.
• Cylinder valve or pressure reducer valves
closed; insufficient pressure.
• Cylinder connection pipe pressed.
• Union or pipe blocked.
• Gas control solenoid valve blocked.
• Number of polythene insertion plates
insufficient in relation to the tray size.
L
• Pump exhaust filter blocked.
• Call an authorized service centre.
• Call an authorized service centre.
• Clean the suction cups.
D
are
• Adjust the gas cylinder pressure at 0.5-1.0 bar.
• Call an authorized service centre.
E
does
• Carry out the calibration.
• Change the gaskets by following the instructions
F
gaskets of
given in the "Maintenance" chapter.
• Change the gaskets by following the instructions
G
betwe-
given in the "Maintenance" chapter.
• Call an authorized service centre.
.
• Connect the two tubes by pushing them until the
quick-release couplings fit flush.
• Change the oil by following the indications given in
the "Maintenance" chapter.
• Change the exhaust filter by following the indica-
tions in the "Maintenance" chapter
• Call an authorized service centre.
• Replace with a compatible tray die.
• Call an authorized service centre.
• Program the "Gas" value at 99% by following the
indications in the "Using the machine" chapter.
• Open the valves and adjust the pressure to 0.5-1 bar.
• Restore the connection.
• Call an authorized service centre.
• Call an authorized service centre.
• Insert the maximum number of shelves possible in
O
relation to the tray size.
• Change the exhaust filter by following the instruc-
tions in the "Maintenance" chapter.
Rev. 08 - 04/2017 - Cod. 1500160 - Instruction manual VGP25N / VGP60N
SOLUTION