Atlas 12AWFSL, Руководство по установке и эксплуатации

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Operation And Use 43
12AWFSL
8.5 Lowering The Wheel Free Jacks
• Be sure the safety area is free of people and objects;
• Raise the jacks a little bit by pushing the lifting button to clear off the
mechanical safeties;
• Press the lowering button: the jacks will take seconds to release the safeties
and then begins to descend lower under its weight and the load lifted.
• Keep pressing the lowering button until the jacks are lowered completely.
8.6 Runway Leveling
During this procedure, DO NOT attempt to raise lift with any
load.
After a period of service, due to natural loss of the oil or trapped air in the
hydraulic line, it could be possible that the runway P2 (the slave runway) is
lower than the runway P1 (the master runway). In this case, level the runways
following these instructions:
• Raise the runways at approximate 12”;
• Set ADJ/WORK selector into the position “ADJ”;
• Turn on the leveling cutoff cock 1 (ref. Fig. 19);
• Feather-pushing the lifting button or the lowering button if necessary to
adjust the height of the runway P2;
• Turn off the leveling cutoff cock 1 after the runway P2 reaches at the same
height as the runway P1;
• Set ADJ/WORK selector into the position “WORK” after the adjustment.
8.7 Manual Emergency Lowering
In case of an emergency the runways or wheel free jacks can be lowered manually
to its initial position as follows referring to the Figure 26 and the Figure 27:
• Padlock the power switch;
• Open the front cover of the control unit;