Function Problem - Telescope In And Out Both Selected; Function Problem - Telescope In Permanently Selected - JLG T350 Troubleshooting Manual

2.76 FUNCTION PROBLEM - TELESCOPE IN AND OUT BOTH SELECTED

Distress Lamp: 9
The digital inputs from both telescope in and telescope out ground panel switches are active.
Functions Disabled at Ground Only: Telescope In, Telescope Out
Step Pretest Instructions
2.76.1 Disconnect X033. Pull the
ground emergency stop
switch and place key switch in
the ground position
2.76.2 Disconnect X014. Hold the
enable switch.
2.76.3 Disconnect X014. Hold the
enable switch.
2.76.4 Remove X004.7.soc from
X004

2.77 FUNCTION PROBLEM - TELESCOPE IN PERMANENTLY SELECTED

Distress Lamp: 1
The ground telescope in switch was closed when the machine was powered. The switch could be accidentally held,
mechanically stuck, or electrically shorted.
Functions Disabled at Ground Only: Telescope In
Step Pretest Instructions
2.77.1
2.77.2 Disconnect X033. Place key
switch in ground position and
pull the emergency stop
switch.
2.77.3 Remove X014.20.pin from
X014. Place key switch in
ground position and pull the
emergency stop switch.
2.77.4 Place key switch in ground
position and pull the emer-
gency stop switch.
3121203
SECTION 2 - TROUBLESHOOTING BY FAULT MESSAGES
ADE Code: 2-3
Test
Is fault "Function Problem -
Telescope In And Out Both
Selected"still present?
Measure continuity between
X014.20.pin and X014.1.pin
Measure continuity between
X014.21.pin and X014.1.pin
Is fault "Function Problem -
Telescope In And Out Both
Selected"still present?
ADE Code: 2-3
Test
Is the switch mechanically
stuck?
Is fault "Function Problem -
Telescope In Permanently
Selected"still present?
Is fault "Function Problem -
Telescope In Permanently
Selected"still present?
Measured voltage at X004.7
= Vbatt?
T350 T500J
Result
Yes
No
Yes
No
Yes
No
Yes
No
Result
Yes
No
Yes
No
Yes
No
Yes
No
Corrective Action
Go to step 2.76.2
Possible Causes: 4.1.18
Possible Causes: Short in Brown 13-2
wire.
Go to step 2.76.3
Possible Causes: Short in Brown 14-2
wire.
Go to step 2.76.4
Possible Causes: 4.1.10
Possible Causes: Short in Brown 13-
2-1 wire or Brown 14-2-1 wire
Corrective Action
Repair or replace the switch
Go to step 2.77.2
Go to step 2.77.3
Possible Causes: 4.1.18
Go to step 2.77.4
Possible Causes: Short in Brown 13-2
wire
Possible Causes: Short in Brown 13-
2-1 wire, 4.1.10
Possible Causes: 4.1.10
2-77