Troubleshooting - Tiger JD 5083E Mounting And Operating Instructions

Boom operation not responding to joystick movement.
Isolate hydraulic vs. electronic symptom.
Turn off electronic master switch (preventing electronic actuator on valve from attempting
to hold spool in neutral position). With tractor engine running, operate the valve section
with the manual handle. If function operates normally, continue with electronic inspection.
If function does not operate normally, continue with hydraulic inspection.
Electronic inspection.
Connect a voltmeter to the cable connector of the valve section that is not operating.
This will allow you to measure supply and signal voltage when the joystick is operated.
Main, Secondary, and Swivel Valves – signal voltage should be 50% of supply voltage
with joystick in Neutral position, up to 75% of supply voltage in B direction, down to 25%
of supply voltage in A direction. Signal voltage should change smoothly with lever
movement.
Pin #1 – Supply Voltage
Deck Roll Valve or Float Valve – signal voltage should be 50% of supply voltage with
joystick in Neutral position, up to 65% of supply voltage in B direction, down to 35% of
supply voltage in A direction. Signal voltage should change smoothly with lever
movement. Signal voltage should be approximately 75% of supply voltage when float
switch is operated.
Pin #1 – Supply Voltage
Shield Valve or On/Off Valve – Voltage on pin #1 should be equal to supply voltage when
switch is operated in A direction. Voltage on pin #2 should be equal to supply voltage
when switch is operated in B direction.
Pin #1 – Signal Voltage
If none of the valve will operate with electrical signal, verify that there is oil pressure at the
valve inlet. Electrical Valves must have pilot supply oil to move the spools.
Possible electronic problems.
Open circuit (broken wire, bad connection or loose connection in switch box).
Shorted to positive, ground, or other.
Incorrect voltage signal from joystick.

TROUBLESHOOTING

JOYSTICK TROUBLESHOOTING
Pin #2 – Signal Voltage
Pin #2 – Signal Voltage
Pin #2 – Signal Voltage
Continued on next sheet
Cheetah Common Section 6-44
Pin #gnd – ground
Pin #gnd – ground
Pin #gnd – ground