JLG G6-23A Service Manual - Manual (Page 115)

9.25 G5-19A, G6-23A
Electrical System
9.11.8 Main Control Valve Solenoids
a. Main Control Valve Solenoid Removal
1. Open the engine cover. Allow the engine to cool.
2. Disconnect the battery negative (-) cable at the
battery negative (-) terminal.
3. Remove rear panel
4. Disconnect the wiring connector at the valve
solenoid lead.
5. Loosen and remove the two allenhead mounting
screws.
6. Remove the valve solenoid (4) being careful not to
lose or damage any o-rings. Note the location of any
orifices, check valves and o-rings if equipped.
b. Main Control Valve Solenoid Disassembly
DO NOT disassemble a valve solenoid. Replace a
defective valve solenoid with a new solenoid.
c. Main Control Valve Solenoid Installation
1. Install the valve solenoid using new o-rings and
tighten the allenhead screws. Do not over tighten.
2. Connect the wire connector to the valve solenoid.
3. Start the machine and slowly move joystick to
engage function. If further troubleshooting is
required, refer to Section 9.4, “Electrical System
Schematics.” or Section 8.6, “Hydraulic Schematic.”
4. Replace rear cover.
5. Close and secure the engine cover.
9.12 CONTROLLER
If the controller has been replaced, the default settings for
the Joystick functions must be properly configured.
9.12.1 Joystick Functionality Setting
1. Connect the JLG Analyzer (P/N 2901443) tool to the
PCB board on the machine. Turn the ignition to the
ON position.
2. Scroll through the menus to find "ACCESS LEVEL 2"
3. Press enter and key in the code "38644" to enter
"ACCESS LEVEL 0".
4. Scroll through the menus to find "MACHINE SETUP"
5. Choose the option that coincides with the joystick
decal in the cab.
6. Verify that joystick functions coincide with the
joystick decal in the cab.
9.13 TROUBLESHOOTING
9.13.1 Analyzer Usage
Help messages can be viewed using the JLG Analyzer
(P/N 2901443). The Help messages can be accessed by
pressing the ENTER key while viewing the current Help
message. The Help message shall be EVERYTHING OK
when no fault is present. The Analyzer cable plugs into
the X26 connector of the PCB board located behind the
operator’s seat.
When the analyzer is first connected, it defaults to access
level 2. Settings may only be viewed in level 2. Settings
cannot be changed until a password is entered to
advance to one of three lower levels.
For more information, contact your local JLG distributor.
MAH1080
4
Code Function
JYSTK ASSIGN:
1-X/K FORK/TELE
Joystick left/right = fork tilt
Knurl = boom extend/retract
JYSTK ASSIGN:
2-X/KS TELE/FORK
Joystick left/right = boom
extend/retract
Knurl = fork tilt (slow)
JYSTK ASSIGN:
3-X/KF TELE/FORK
Joystick left/right = boom
extend/retract
Knurl = fork tilt (fast)