Functionality Check - Vacuum Unit
Conventions:
+V
b
: Positive voltage of the battery.
−V
b
: Negative voltage of the battery.
The emergency button is not pressed, the key contact is closed and the charger is not connected to the
mains.
The Vacuum system is in working condition.
Input/output:
Satisfied condition Pin V at work V at rest
Vacuum Motor Activated XD(1) ref to XD(2) +V
b
−V
b
Vacuum Wand Activated J1(8) ref to J7(18) +V
b
−V
b
Display Transmitting J1(7) ref to B- +V
b
−V
b
Display Negative J1(4) ref to B- −V
b
−V
b
Display Receiving J1(7) ref to B- +V
b
−V
b
Display Positive J1(8) ref to B- +V
b
+V
b
Electrobrake Activated J2(1) ref to J2(2) +V
b
−V
b
Traction pedal pressed J5(3) ref to J5(6) +V
b
−V
b
Backward Activated J7(11) ref to J7(16) +V
b
−V
b
Seated Operator J7(15) ref to J7(1) +V
b
−V
b
Squeegee Actuator in motion J13(1) ref to J13(4) +V
b
−V
b
J1 J2
J5 J7
J13
7.6.1 Relative electrical Components
Vacuum Motor
The vacuum motor produces a vacuum in the system upstream of it which causes a flow of air that runs through
the entire drying system and allows the water to be sucked together with the air.
2 Stages Motor
With a constant 24 V DC supply (full battery) the single motor without load (M3) draws 17,6 Amps ± 0,1.
With a constant 21 V DC supply (low battery) the absorption is 15,9 Amps ± 0,1.
3 Stages Motor
With a constant 24 V DC supply (full battery) the single motor without load (M3) draws 24,0 Amps ± 0,1.
With a constant 21 V DC supply (low battery) the absorption is 22,0 Amps ± 0,1.
Actuator
The squeegee lifting actuator, by means of the lever and the tie rod, lowers the squeegee and pushes it to the
ground.
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