Runway Lifting Procedure; Vehicle Lowering And Unload Procedure; Safety Devices - Corghi ERCO 4004 Manual De Uso

5.2 RUNWAY LIFTING PROCEDURE

To lift vehicle, proceed as follows:
• Check that the EMERGENCY SWITCH/DISCONNECTOR/OFF (17, Fig. 1) is set to 0 (OFF), turn it if necessary.
• Place vehicle onto runways (runways shall be all the way down).
• Turn EMERGENCY SWITCH DISCONNECTOR /OFF (17, Fig. 1) to 1 (ON).
• Lift the vehicle of about 10 centimetres.
• Check vehicle stability.
• Proceed to vehicle lifting.
• Press the DOWN push-button (21, Fig. 1) until the runways stop on the mechanical safety locks.
• Turn EMERGENCY SWITCH DISCONNECTOR /OFF (17, Fig. 1) before acceding to the lift runways.
WARNING
Positioning of the vehicle: after positioning the vehicle on the lifter lane, make sure that its wheels are as close as possible to the centreline of the run-
ways, then lock the clamping brake to prevent dangerous movements.

5.3 VEHICLE LOWERING AND UNLOAD PROCEDURE

For vehicle lowering and unload, proceed as follows:
• Turn EMERGENCY SWITCH DISCONNECTOR /OFF (17, Fig. 1) to 1 (ON).
• Carry out a lowering manoeuvre (see 5.1.2 Lift Lowering) to move runways down until they stop (at about 15 cm from the floor).
DANGER: Make sure that no unauthorised persons or animals are present within the hazardous area (1, Fig. 2).
This check shall always be carried out before completing lift lowering movement, as this last phase has to be considered as particularly
dangerous for any people standing close to the hazardous areas (1, Fig. 2).
• Press the LOWERING COMPLETION push-button (22, Fig. 1) until runways are fully down. In this last lowering stage, the warning acoustic
alarm is triggered.
• Turn EMERGENCY SWITCH/DISCONNECTOR (17, Fig. 1) to 0 (OFF).
• Unload vehicle from runways.

5.4 SAFETY DEVICES

WARNING: The following safety devices shall by no means be tampered with or disabled; they shall also be always kept in top
working conditions:
• BRAKING SAFETY LOCKS (1-2 Fig. 27): they prevent runway lowering due to hydraulic circuit blow-by.
• FALL-PREVENTING MECHANICAL SAFETY LOCKS (2, Fig. 12-14): they prevent the runways lowering due to loosening or breaking of the
bearing ropes.
WARNING
In case of rope loosening or breaking, the relevant limit switch (FCx Fig. 19 and 20) will prevent any movement of the lift. In this case, carefully check
rope position and status and then, after making sure that there are no dangers, use the key switch selector (24, Fig. 1) to enable lift operation again.
An accidental lock (an obstacle under the runways or the engagement of only one safety lock) will not prevent the normal operation of the lift. Remove
the key from the selector switch, store it in a safe place and continue using the lift. If this is not the case, lock the lift and contact the assistance service.
• WHEEL LOCK SAFETY LOCKS (10 and 9, Fig. 1): when the vehicle is lifted, they prevent it from falling off lengthwise from the lifting runways by locking
its wheels. They are integrated in the oscillating ramps on the vehicle access side and fixed on the opposite side.
• PRESSURE RELIEF VALVE in the hydraulic circuit: it prevents the lifting of vehicles whose weight exceeds the lift maximum capacity.
• Safety parachute valve on the hydraulic cylinder: it prevents the lowering of the runways in case of sudden pressure drop in the hydraulic system.
• Emergency switch / rotating disconnector (17, Fig. 1): if turned in the 0 position, it locks lift operation.
• LOWERING COMPLETION push-button (22, Fig.1): pressing the DOWN push-button (21, Fig.1): lift runways stop at about 15 cm from the floor to
warn and remind the operator that - before completing the lowering movement by pressing the LOWERING COMPLETION push-button (22, Fig. 1) - it is
necessary to ensure that the hazardous area (1, Fig. 5) is clear, since this last stage of the lowering movement is particularly dangerous for any persons
in the areas surrounding the lift (1, Fig. 5).
• VOLTAGE WARNING LED (18, Fig. 1): its lighting means that access to the runways is not allowed.
• Low-voltage additional electric circuit: this circuit cannot originate any electric shock.
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