Four stack directional control valve, Four stack directional control valve -17 – JLG 150HAX Service Manual User Manual
Page 113
SECTION 5 - HYDRAULICS
3120817
– JLG Lift –
5-17
to increase pressure, counterclockwise to decrease
pressure. Tighten locknut.
6.
Bottom out Rear Steer Right function.
7.
Loosen locknut on rear steer valve section and turn
adjusting screw to adjust valve section to 2000 psi
(138 bar). Turn adjusting screw clockwise to
increase pressure, counterclockwise to decrease
pressure. Tighten locknut.
8.
Bottom out Rear Steer Left function.
9.
Loosen lock nut on opposite side of valve section
and turn adjusting screw to adjust valve section to
2000 psi (138 bar). Turn adjusting screw clockwise
to increase pressure, counterclockwise to decrease
pressure. Tighten locknut.
Four Stack Directional Control Valve
1.
Plug pressure gauge into quick-connect at three
stack directional control valve, located inside left
rear of machine frame.
2.
Bottom out Front Axle Extend function.
3.
Loosen locknut on applicable valve section and turn
adjusting screw to adjust valve section to 2000 psi
(138 bar). Turn adjusting screw clockwise to
increase pressure, counterclockwise to decrease
pressure. Tighten locknut.
4.
Bottom out Front Axle Retract function.
5.
Loosen lock nut on opposite side of valve section
and turn adjusting screw to adjust valve section to
2000 psi (138 bar). Turn adjusting screw clockwise