TIGIEFFE AIRO A Series, Use And Maintenance Manual

Page: 82 / 130

Use and Maintenance Manual – A16 J A18 J Series Page 82
7.2.14. Operation check of M1 microswitches
The lifting booms and the telescopic extension are controlled by microswitches:
▪
M1A on pantograph (lower boom)
▪
M1B on the upper boom.
▪
M1C on the Jib.
▪
M1E on the telescopic extension (OPTIONAL for A16J – STANDARD for A18 J).
Once a year check the working conditions of the microswitches M1.
The microswitch functions M1A-M1B-M1E are as follows: with platform outside the rest position (at least one of the
microswitches M1A-M1B-M1E is driven):
▪ the safety drive speed is automatically activated;
▪
If the chassis is inclined over the max. allowed inclination, lifting, extension and drive controls are disabled.
▪ The compensation control for platform levelling is disabled.
▪ when the platform is overloaded ALL operations until removal of overload are disabled.
The functions of the microswitch M1C on the Jib have been designed to favour loading/unloading operations from the ramps of
a vehicle. With booms in rest position (microswitches M1A-M1B-M1E not activated), and Jib with inclination higher than +10°
according to the horizontal axis (M1C activated):
▪
The first drive speed is automatically activated.
▪
if the chassis is inclined over the max. allowed inclination, Jib lifting and drive controls remain allowed;
7.2.15. Dead-man pedal safety system operation check
The platform dead-man pedal is for enabling the operation controls of the machine on the platform control panel.
Check operation at least once a year.
To check the “dead - man” PEDAL:
▪
Move the drive joystick forward and backward in sequence, WITHOUT PRESSING THE DEAD-MAN PEDAL.
▪
check that the machine does not perform any movement
▪
hold down the dead-man pedal for more than 10 seconds
▪
With the pedal pressed, move the joystick forward and backward in sequence.
▪
check that the machine does not perform any movement
If the device works properly, no machine movement is possible on the platform control panel unless you pr
ess the “dead - man”
pedal beforehand. If this is pressed for more than 10 seconds and no operation is performed, all movements are disabled; to
operate the machine again, release the dead-man pedal and press it again.
The condition of the switch is indicated by the green led in the platform:
▪ Steady green led lit up enabled control panel
▪
Flashing green led lit up disabled control panel