JLG M600 Service Manual - Manual (Page 163)

SECTION 5 - HYDRAULICS
3121813 – JLG Lift – 5-19
5.5 PRESSURE SETTINGS
Proportional Main Relief - 3200 psi (220 Bar)
Bang Bang Main Relief - 3000 psi (207 Bar)
Lift Down - 1100 psi (76 Bar)
Lift Up - 2500 (172 Bar)
Swing - 2500 psi (172 Bar)
Flow Control - 3000 psi (207 Bar)
Steer - 1800 (124 Bar)
Platform Level Up - 2500 psi (172 Bar)
Platform Level Down - 1500 psi (103 Bar)
Jib Up - 2300 psi (158.5 Bar)
Jib Down - 2300 psi (158.5 Bar)
NOTE: All functions must be activated from the platform
control station when adjusting pressures at the Plat-
form Control and Main Valve Blocks.
Proportional Main Relief
1. Connect the pressure gauge at the MP port on the
main valve and disconnect the lift up coil on the
main valve block.
2. Activate the lift up switch from the platform. Adjust
pressure to 3200 psi (220 Bar).
Lift Down
1. Connect the pressure gauge at the MP port on the
main valve.
2. Activate and bottom out lift down. Adjust pressure to
1100 psi (76 Bar).
Lift Up
1. Connect the pressure gauge at the MP port on the
main valve.
2. Activate lift up until end of lift cylinder stroke. Adjust
pressure to 2600 psi (179 Bar). If ceiling height will
not allow elevation, disconnect lift up hose (port #8
on valve bank) and cap the port to make the setting.
Swing
1. Connect the pressure gauge at the MP port on the
main valve.
2. Activate the swing function with the turntable lock
pin engaged. Adjust pressure to 2500 psi (172 Bar).
Flow Control / Bang Bang Main Relief
1. Connect the pressure gauge at the MP port on the
main valve.
2. Activate and bottom out telescope in. Adjust pres-
sure to 3000 psi (207 Bar).
Steer
1. Connect the pressure gauge at the MP port on the
main valve.
2. Activate and bottom out steer right or left. Adjust
pressure to 1800 psi (124 Bar).
Platform Level Down
1. Connect a pressure gauge to the M1 port on the
platform control valve bank.
2. Activate and bottom out Platform Level Down. Adjust
to 1500 psi (103 Bar).
Platform Level Up Relief
1. Connect a pressure gauge to the M1 port on the
platform control valve bank.
2. Activate and bottom out Platform Level Up. Adjust to
2500 psi (172 Bar).
Jib Relief
1. Connect a pressure gauge at the M1 port on the
platform control valve bank.
2. Activate and bottom out either Jib Up or Down.
Adjust the relief to 2300 psi (158.5 Bar).