Pinguely-Haulotte HA20PX, Repair Manual

Page: 125 / 282

BREAKDOWN DETECTION FLOW CHART
Sheet DP026
NO COMPENSATION MOVEMENT
(UP AND / OR DOWN)
Folio 3/5
The defective
movement up (1) or down (2)
is made when an opposite
movement is activated:
down (1) or
up (2)
NO
YES
- Invert the coils of the compensation
electrovalve YV15A and YV15B
- Press the pedal and activate the
compensation switch
B
Put coils YV15A and YV15B back
in their original position
D
E
NO
YES
12V
OK
- Open the turntable control panel
- Press the pedal and activate the compensation switch.
Check for 12V voltage on terminals 401A (up) or 402A
(down) of the printed circuit
Replace coil YV15A
(up) or YV15B
(down)
END
See Fiche
C059
NO
YES
12V
OK
Replace the
U1 module See Fiche
C058
Repair the connection or repla-
ce the electric wiring harness
between the turntable control
panel and electrovalve YV15
END
NO
YES
The fault
persists
Replace the
printed circuit See Fiche
C063
END
END
Press the pedal and activate the
compensation switch. Check for 12V voltage
at the terminals of the YV15A (up) or YV15B
(down) connector