Boom Lift/Lower Circuit And Troubleshooting - JLG sky trak mmv Service Manual

Electrical System
10.7.19

Boom Lift/Lower Circuit and Troubleshooting

ACCESSORY POWER (+)
GROUND (-)
10.56
Schematic is drawn with the ignition switch in the RUN position.
JOYSTICK
Attachment Attachment
Y X
DE DE
Solenoid Solenoid
JOYSTICK
LOGIC
BOARD
Boom Boom
Lift/Lower Extend/Retract
E E
Solenoid Solenoid
KEYLESS IGNITION SWITCH
1 3 OFF ON ST
2
DE
DE-ENERGIZED
ENERGIZED
E
PILOT
SELECT
VALVE
Model MMV Rev. 12-04
MM4850