Lift Down Solenoid Short To Battery; Lift Down Solenoid Short To Ground; Lift Up & Tele Out Prevented - Tilted & Above Elevation - JLG T350 Troubleshooting Manual

2.106 LIFT DOWN SOLENOID SHORT TO BATTERY

Distress Lamp: 9
Ground module feedback shows that Lift Down PWM output may be shorted to battery or other function
Functions Disabled: Lift Down
Step Pretest Instructions
2.106.1 Disconnect solenoid at X039
and isolate wires
2.106.2 Remove wire Tan 4-3-1 from
X002.22

2.107 LIFT DOWN SOLENOID SHORT TO GROUND

Distress Lamp: 9
Ground module feedback shows that the Lift Down PWM output may be shorted to ground or the solenoid may be defective
Functions Disabled: Lift Down
Step Pretest Instructions
2.107.1 Disconnect solenoid at X039
and isolate wires
2.107.2 Remove wire Tan 4-3-1 from
X002.22
2.108 LIFT UP & TELE OUT PREVENTED - TILTED & ABOVE ELEVATION
Distress Lamp: 2
The ground module senses the controls in the lift up or tele out position, but RETRIEVAL-A is active. While RETRIEVAL-A is
active, the boom cannot be lifted up or telescoped out any further to prevent further destabilization.
Functions Disabled: Lift Up, Telescope Out
Step Pretest Instructions
2.108.1
2.108.2
3121203
SECTION 2 - TROUBLESHOOTING BY FAULT MESSAGES
ADE Code: 3-3
Test
Rerun System Test
Rerun System Test
ADE Code: 3-3
Test
Rerun System Test
Rerun System Test
ADE Code: 2-5
Test
Is the machine tilted more
than 4.5 degrees?
ANALYZER -> DIAGNOS-
TICS -> SYSTEM -> TILT
>= 4.5 DEG (platform tilt
LED illuminated)
T350 T500J
Result
Analyzer Message "LIFT DOWN
VALVE OPEN CIRCUIT"
Analyzer Message "LIFT DOWN
VALVE SHORT TO BATTERY"
Analyzer Message "LIFT DOWN
VALVE OPEN CIRCUIT"
Analyzer Message "LIFT DOWN
VALVE SHORT TO BATTERY"
Result
Analyzer Message "LIFT DOWN
VALVE OPEN CIRCUIT"
Analyzer Message "LIFT DOWN
VALVE SHORT TO GROUND"
Analyzer Message "LIFT DOWN
VALVE OPEN CIRCUIT"
Analyzer Message "LIFT DOWN
VALVE SHORT TO GROUND"
Result
Yes
No
Yes
No
Corrective Action
Repair/Replace solenoid
Go to step 2.106.2
Wire Tan 4-3-1 or Tan 4-3 shorted to
battery. Repair or replace
Possible Cause: 4.1.10
Corrective Action
Repair/Replace solenoid
Go to step 2.107.2
Wire Tan 4-3-1 or Tan 4-3 shorted to
ground. Repair or replace
Possible Cause: 4.1.10
Corrective Action
Retract, lower the boom and level the
machine before lifting or telescoping
out.
Go to step 2.108.2
See 3.16 Tilt Sensor
Possible Causes: 4.1.10
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