Valve Adjustments - Function Manifold; How To Adjust The Proportional Relief Valve And Hydraulic Pressure Sensor - Terex Genie Z-45 DC Service And Repair Manual

Service and Repair Manual
Manifolds
9-2 9-2 Valv e Adjust men ts - Fu nction Ma nifold
Valve Adjustments - Function
Manifold
How to Adjust the Proportional How to Adju st th e Pro porti onal R elief Valv e an d Hyd raulic P ressu re Se nsor
Relief Valve and Hydraulic
Pressure Sensor
Note: Perform this procedure with the machine in
the stowed position.
1 Connect a 0 to 5000 psi / 0 to 350 bar
pressure gauge to test port #1 (TP1) on the
function manifold.
2 Turn the key switch to Ground control. Pull
out the platform red Emergency Stop button
to the on position and pull out the ground
control red Emergency stop button to the on
position.
3 To enter the pressure sensor calibration
mode, momentarily activate the ground
control function enable switch three times
within 5 seconds of pulling the red Emergency
Stop button at the ground controls.
The pump motor activates and a green light
will begin flashing on the TCON controller.
Note: The procedure will time out if any step is not
completed within 90 seconds or terminate if the
function enable switch is activated.
4 Activate the platform level toggle switch up or
down until the pressure gauge reads 1000 psi
/ 69 bar. The platform level toggle up
increases pressure, platform level down
decreases pressure.
5 Activate the platform rotate toggle switch to
store the value.
Result: The control system will continue to the
next calibration procedure value - (3000 psi /
207 bar).
54
6 Activate the platform level toggle switch up or
down until the pressure gauge reads 3000 psi
/ 207 bar. The platform level toggle up
increases pressure, platform level down
decreases pressure.
7 Activate the platform rotate toggle switch to
save the value.
Result: The control system will automatically
continue through the procedure and it
automatically sweeps the following calibration
points: 2500 psi / 172 bar, 2000 psi / 138 bar,
600 psi / 41,4 bar. A one second pulse alarm
will indicate the calibration procedure is
complete.
8 Remove the pressure gauge.
Z ® -45 DC • Z ® -45 FE
October 2022
Tip-over hazard. Do not adjust
the relief valve higher than
specified.
Part No. 1297714GT