SECTION 5 - HYDRAULICS
5-6
– JLG Lift –
3121623
5.3
GROUND COMPONENT HYDRAULIC SYSTEM
The ground control manifold valves control, outriggers, left and right track drive, and track widening.
The ground control valves are controlled by two hydraulic valve-blocks (right side and left side), both equipped with one
maximum pressure valve, one proportional valve and an ON-OFF valve for each ground control movement.
ON-OFF
VALVES
PROPORTIONAL
VALVE
MAX
PRESSURE
VALVE
RIGHT
SIDE
VALVE
BLOCK
ON-
OFF
PROPORTIONAL
VALVE
MAX
PRESSURE
VALVE
LEFT-
SIDE
VALVE
BLOCK
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