Valve Adjustments - Function Manifold; How To Adjust The Proportional Relief Valve And Hydraulic Pressure Sensor - Terex Genie Z-60 DC Service Manual

Service and Repair Manual
Manifolds
8-2
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 Simultaneously activate the platform level
toggle switch until the pressure gauge reads
1000 PSI / 69 bar. The platform level toggle
up increases pressure, platform level down
decreases pressure.
48
5 Simultaneously 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).
6 Simultaneously activate the platform level
toggle switch until the pressure gauge reads
3000 PSI / 207 bar. The platform level toggle
up increases pressure, platform level down
decreases pressure.
7 Simultaneously activate the platform rotate
toggle switch to save the value.
Result: The control system will automatically
continue to the next procedure, calibrate and
save for the remaining values: 2500 PSI /
172 bar, 2000 PSI / 138 bar, and 500 PSI /
34 bar. A one second pulse alarm will indicate
the calibration procedure is complete.
8 Remove the pressure gauge.
Z ® -60 DC • Z ® -60 FE
August 2022
Part No. 1307785GT