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ENGLISH
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4.3 LOWERING OPERATIONS
Follow these instructions:
• Turn the emergency button (18 Fig. 2) as indicated by the arrow and bring it in raised position.
• Push the reset/ON button (19 Fig. 2).
• Press the DOWN push-button (22 Fig. 2) and bring the carriages to the minimum height.
• Push deeply the emergency/OFF button (18 Fig. 2).
• Rotate the arms so that they do not get in the way of the motor-vehicle as it is leaves the lift and close the extensions.
• Move the vehicle from the hoist area.
4.4 SAFETY DEVICES
WARNING: Do not absolutely remove or tamper with these devices. They must be kept in full efficiency all the time:
• Anti-toe trapping devices applied to the arms (13 Fig. 2) prevent the feet squashing of the operator during the last phase of arms lowering.
• Current presence led (20 Fig. 2): when it is on, approaching the lift is no permitted.
• Arms anti-rotation mechanical devices with automatic insertion (14 Fig. 2): they do not permit by lifted carriage, the rotation of the lifting
arms.
• Mechanical anti-fall devices (1 Fig. 18): they block the carriage lowering in case of leak in the hydraulic system or break of the mechanical lifting
devices.
• Safety in case of loosening or breakage of the chain: blocks carriages descent.
• “Manned” control panel: attendance of operator is necessary to start all lift functions.
• Safety valves (hydraulic diagram): They prevent the carriages from descending in case there is a sudden decrease in pressure in the hydraulic
circuit.
• Emergency/OFF button (18 Fig. 2): if pressed blocks the lift.
• Auxiliary electric circuit in low tension: this circuit can not cause “electric shock".
4.5 EMERGENCY LOWERING
WARNING: Carrying out an “emergency descent”, the mechanical fall-proof saddle safeties are excluded.
Therefore the following operations must be carried out only:
• When the lift does not lower due to a damage in the electric system or to an electricity failure;
• When it is strictly necessary;
• By a qualified technician;
• Delimiting the area around the lift and permitting access to the operator only.
Procedure for emergency lowering:
• Push emergency/OFF button (18 Fig. 2).
• If the lift is in the “STOP" position these will not open. The following operations will then only be possible if the lift is equipped with a manual
emergency pump to lift the hoist and release the safety stops. The pump, with use directions, will be supply on request. It permit to raise the
lift in order to free the mechanical safeties.
Release the mechanical safeties as follows:
1) Stretch the steel cable by releasing the nut (1 Fig. 17) and move down the cylinder in each of the two columns to its lowest possible position
(POS. B Fig. 17). Fix temporarely the nut (1 Fig. 17) so that the safety pawls are brought again in opened position (Fig. 17).
2) Release again the knurled screw (6 Fig. 13). Screwing or unscrewing the screw increases or decreases the lowering speed of the carriages.
3) When the operation is terminated, screw in the screw (6 Fig. 13) again.
4) When the lowering operation is completed, release again the nut (1 Fig. 17) and feed the pneumatic circuit of the lift. This will allow to realign
vertically the pneumatic piston of each column and to take it back to the original position (POS. A Fig. 17). Lock the again the nut.
DANGER: Carry out with accurancy all operations of point 2.
CAUTION: When you have reset the normal operating of the lift, let the unloaded hoist to go up and down for 2 or 3 times and check the
functioning of the safety devices described in point 5.1.2.