Barrier Maintenance; Bleeding The Oil-Dynamic System; Troubleshooting - Aprimatic AT163 Instrucciones Para La Instalación

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6.1

BARRIER MAINTENANCE

- Regularly check the integrity of hydraulic hoses, metal rope and electrical wires inside the barrier body.
- Check the effi ciency of the limit switches (fi g. 17). Re-adjust if necessary.
- Check the condition of any moving mechanical parts like springs, beam lever, etc.
- Make sure the air intakes and the exhaust grids are not obstructed by foreign matters.
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Warning
Do not replace parts of the barrier at your will and with own materials. Always address to your nearest dealer.
6.2

BLEEDING THE OIL-DYNAMIC SYSTEM

- Remove the piston from the supports. For a correct bleeding, the
piston cannot be mounted on the swinging beam (to allow for a
complete stroke of the rod in both directions).
- By the special dip-switch, disable the control of the hand-
unlocking micro-switch and reset the electronic appliance (so
that the adjustment takes effect).
After this prepping phase, proceed as follows:
- Operate the barrier in opening mode so that the cylinder rod
comes out completely. When it comes near the stroke end
position, open and close the manual unlocking device (fi g.31)
some times.
- Now operate the barrier in closing mode. Fully withdraw the rod
and repeat the above operations.
- Repeat both operations until the rod motion is even and smooth
and there are no jerks due to air bubbles.
- Reprogram the electronic appliance, refi t the piston and adjust
its stroke by adjusting the ball-joint and the oil-dynamic braking
(do not exaggerate in this adjustment).
7.1

TROUBLESHOOTING

The following table shows the most frequent troubles that can occur and the interventions to be done to restore a proper functioning.
Trouble
The beam jerks during opening
and closing.
The beam stroke is not complete during
opening and closing.
The beam tends to re-open and set to
25˚÷40˚ respect to the roadbed.
The beam hard moves at slow speed.
Anomalous operation and/or alarm
condition.
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Cause
Wrong setting of the compensation spring.
- Wrong intervention of the limit switches.
- Electronic deceleration.
- Oil-dynamic braking.
The manual unlocking device is not
fully closed.
The manual unlocking device is not fully
closed.
Possible intervention of the safety sensors
or the signalling contacts.
Tel. (39) 051-8850500 - Fax (39) 051-8850501
- 17 -
Barrier maintenance / Troubleshooting
Fig.31
Solution
Adjust the spring
- Adjust the cams.
- Adjust the trimmers
- Adjust the oil-dynamic braking.
- Check the external unlocking lever.
- Check the return spring of the unlocking lever
on the oil-dynamic control unit.
- Check the steel rope for foreign matters.
Check the setting of the opening/closing
thrust valves.
- Ensure the dip-switches are set correctly.
- Check the proper functioning of all inputs
and outputs of the electronic appliance following
the LEDs' legend.
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