Function Locked Out - Trigger Permanently Closed; Function Problem - Engine Choke Permanently Selected - JLG T350 Troubleshooting Manual

SECTION 2 - TROUBLESHOOTING BY FAULT MESSAGES

2.55 FUNCTION LOCKED OUT - TRIGGER PERMANENTLY CLOSED

Distress Lamp: 1
The platform trigger was closed when the platform was powered. The switch could be accidentally held, mechanically stuck,
or electrically shorted.
Functions Disabled at Platform Only: Lift Up, Lift Down, Swing Left, Swing Right, Telescope In, Telescope Out, Jib Up, Jib
Down, Level Up, Level Down, Front Left O/R, Front Right O/R, Rear Left O/R, Rear Right O/R, Set (Extend O/R), Stow (Retract
O/R)
Step Pretest Instructions
2.55.1
2.55.2 Disconnect X061. Make sure
trigger is not engaged.
2.55.3 Disconnect X061
2.55.4 Place key switch in the plat-
form position and pull the
emergency stop switches.
Using the analyzer, navigate to
DIAGNOSTICS -> PLAT-
FORM
2.55.5 Place key switch in the plat-
form position and pull the
emergency stop switches.
Using the analyzer, navigate to
DIAGNOSTICS -> PLAT-
FORM

2.56 FUNCTION PROBLEM - ENGINE CHOKE PERMANENTLY SELECTED

Distress Lamp: 1
The platform engine choke switch was closed when the platform was powered. The switch could be accidentally held,
mechanically stuck, or electrically shorted.
ENGINE POWERED MACHINES ONLY
Functions Disabled at Platform Only: Engine Choke Pull, Engine Choke Hold
Step Pretest Instructions
2.56.1
2.56.2 Disconnect X064. Place key
switch in the platform position
and pull the emergency stop
switches.
2.56.3 Place key switch in the plat-
form position and pull the
emergency stop switches.
2-66
ADE Code: 2-2
Test
Is the trigger mechanically
stuck?
Test for continuity between
X061.5.pin and X061.6.pin.
Pull the ground emergency
stop switch and place key
switch in platform position
Does the displayed function
selected change as you
change the rotatory select
switch?
With the rotary selector
switch in the platform level-
ing position which function
does the analyzer show is
selected?
ADE Code: 2-2
Test
Is the switch mechanically
stuck?
Is fault "Function Problem -
Engine Choke Permanently
Selected"still present?
Measured voltage at
X060.14 = Vbatt?
T350 T500J
Result
Yes
No
Yes
No
Fault Message "JOYSTICK
FAULTY - Y AXIS WIPER OUT OF
RANGE"
Fault Message "FUNCTION
LOCKED OUT - TRIGGER PER-
MANENTLY CLOSED"
Yes
No
Diagnostic Message "LEVEL
SELECT"
Diagnostic Message "LIFT/
SWING SEL"
Diagnostic Message "JIB/TELE
SELECT"
Result
Yes
No
Yes
No
Yes
No
Corrective Action
Repair or replace the joystick trigger
Go to step 2.55.2
Possible Causes: 4.1.22
Go to step 2.55.3
Possible Causes: 4.1.22
Go to step 2.55.4
Repair the Yel/Red 2-17 wire between
X060.6 and X063 or the rotary select
switch
Go to step 2.55.5
Possible Causes: Short in wire Orn/
Red 49-27, 4.1.11
Possible Causes: Short in wire Orn/
Red 49-26, 4.1.11
Repair short in wire Orn/Red 49-31
Possible Cause: 4.1.11
Corrective Action
Repair or replace the switch
Go to step 2.56.2
Go to step 2.56.3
Possible Causes: 4.1.18
Possible Causes: Short in Orn/Red 49-
30 wire, 4.1.11
Possible Causes: 4.1.11
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