Terex Genie Z-135/70, Service And Repair Manual

Page: 48 / 244

Service and Repair Manual October 2018
Platform Controls
34 Z®-135 /70 Part No. 1268557GT
How t o R es et a Proportional Val ve Coil D ef ault
How to Reset a Proportional Valve
Coil Default
Note: Use the following chart to identify the
description of each LCD screen control button used
in this procedure.
Plus Minus Previous Enter
Note: This procedure only needs to be performed if
a proportional valve has been replaced.
Note: After the valve coil defaults have been set,
each machine function threshold and default
function speed must be set. Refer to Repair
Procedure,
How to Set the Function Thresholds
and Default Function Speeds .
1 Turn the key switch to the off position.
2 Press and hold the enter button on the ground
control panel while turning the key switch to
platform controls. Hold the
enter button for
approximately 5 seconds.
3 Press the minus button twice, then press the
enter button twice.
4 Use the previous button to scroll through the
menu until the function valve that needs to be
reset is displayed. Press the
plus button to
select yes, then press the enter button to save
the setting.
5 Press the enter or previous button on the
LCD screen until EXIT is displayed.
6 Press the plus button or minus button to
select YES and then press the enter button.
How t o Set t he F unc tion T hresholds and D ef ault Func tions Speeds
How to Set the Function
Thresholds and Default Functions
Speeds
Note: Before the threshold and default function
speeds can be set, the boom function proportional
valve coil defaults must be set first. Refer to Repair
Procedure
, How to Reset a Proportional Valve Coil
Default.
Note: If a boom function proportional valve coil has
not been replaced and just want to reset the
function speed to original factory settings, proceed
to Function speeds procedure.
1 Start the engine from the platform controls.
2 Press down the foot switch.
Note: Be sure the engine rpm is set to foot switch
activated high idle.
Function threshold:
3 Select a joystick controlled function that needs
to have the threshold set.
4 Slowly move the joystick off center in either
direction just until the machine function starts
to move, then move the joystick very slowly
towards the neutral or center position just
before the machine function stops. Do not let
go of the joystick.
5 While holding the joystick in position, press the
engine start button at the platform controls to
set the joystick controller threshold.