Function Problem - Engine Start Permanently Selected; Function Problem - Jib Down Permanently Selected - JLG T350 Troubleshooting Manual

SECTION 2 - TROUBLESHOOTING BY FAULT MESSAGES

2.59 FUNCTION PROBLEM - ENGINE START PERMANENTLY SELECTED

Distress Lamp: 1
The ground engine start switch was closed when the machine was powered. The switch could be accidentally held,
mechanically stuck, or electrically shorted.
ENGINE POWERED MACHINES ONLY
Functions Disabled: Engine Start, Engine Throttle Pull, Engine Throttle Hold
Step Pretest Instructions
2.59.1
2.59.2 Disconnect X036. Place key
switch in ground position and
pull the emergency stop
switch.
2.59.3 Remove X014.14.pin from
X014. Place key switch in
ground position and pull the
emergency stop switch.
2.59.4 Place key switch in ground
position and pull the emer-
gency stop switch.

2.60 FUNCTION PROBLEM - JIB DOWN PERMANENTLY SELECTED

Distress Lamp: 1
The ground jib down switch was closed when the machine was powered. The switch could be accidentally held, mechani-
cally stuck, or electrically shorted.
T500J MODELS ONLY
Functions Disabled at Ground Only: Jib Down
Step Pretest Instructions
2.60.1
2.60.2 Disconnect X032. Place key
switch in ground position and
pull the emergency stop
switch.
2.60.3 Remove X014.24.pin from
X014. Place key switch in
ground position and pull the
emergency stop switch.
2.60.4 Place key switch in ground
position and pull the emer-
gency stop switch.
2-68
ADE Code: 2-3
Test
Is the switch mechanically
stuck?
Is fault "Function Problem -
Engine Start Permanently
Selected"still present?
Is fault "Function Problem -
Engine Start Permanently
Selected"still present?
Measured voltage at X004.4
= Vbatt?
ADE Code: 2-3
Test
Is the switch mechanically
stuck?
Is fault "Function Problem -
Jib Down Permanently
Selected"still present?
Is fault "Function Problem -
Jib Down Permanently
Selected"still present?
Measured voltage at X004.8
= Vbatt?
T350 T500J
Result
Yes
No
Yes
No
Yes
No
Yes
No
Result
Yes
No
Yes
No
Yes
No
Yes
No
Corrective Action
Repair or replace the switch
Go to step 2.59.2
Go to step 2.59.3
Possible Causes: 4.1.18
Go to step 2.59.4
Possible Causes: Short in Wht/Yel 48-
1 wire
Possible Causes: Short in Wht/Yel 48-
1-1 wire, 4.1.10
Possible Causes: 4.1.10
Corrective Action
Repair or replace the switch
Go to step 2.60.2
Go to step 2.60.3
Possible Causes: 4.1.18
Go to step 2.60.4
Possible Causes: Short in Blue 28-2
wire
Possible Causes: Short in Blue 28-2-1
wire, 4.1.10
Possible Causes: 4.1.10
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