Ignition Relay - Power - JLG T350 Troubleshooting Manual

3.9 IGNITION RELAY - POWER

Step Pretest Instructions
3.9.1 Pull the ground emergency
stop switch and place key
switch in the OFF position
3.9.2 Pull the ground emergency
stop switch and place key
switch in ground position
3.9.3 Pull the ground emergency
stop switch and place key
switch in ground position
3.9.4 Pull the ground emergency
stop switch and place key
switch in ground position
3.9.5 Pull the ground emergency
stop switch and place key
switch in ground position
3.9.6 Pull the ground emergency
stop switch and place key
switch in ground position
3.9.7 Pull the ground emergency
stop switch and place key
switch in ground position
3.9.8 Pull the ground emergency
stop switch and place key
switch in ground position
3.9.9
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Test
Check Voltage on X009.87
Check Voltage on X009.86
Check Voltage on X009.30
Check Voltage at X007.3
Check Voltage at X014.16
Check Voltage at X026.3
Check Voltage at x026.2
Check Voltage at X037, ground
EMS switch
Check Voltage on X013.1
T350 T500J
SECTION 3 - COMPONENT CHECKS
Result
0V
Vbatt
0V
Vbatt
0V
Vbatt
0V
Vbatt
0V
Vbatt
0V
Vbatt
0V
Vbatt
0V
Vbatt
0V
Vbatt
Corrective Action
Go to step 3.9.2
Possible Causes: 4.1.6, 4.1.7
Go to step 3.9.4
Go to step 3.9.3
Go to step 3.9.8
Repair/Replace Ignition Relay
Go to step 3.9.5
Repair/Replace diode at X009.86
Go to step 3.9.6
Repair open in YEL/RED 2-5 or YEL/
RED 2-10
Go to step 3.9.7
Repair open in YEL/RED 2-5
Go to step 3.9.8
Repair/Replace key switch
Possible Causes: 4.1.65
Otherwise, go to step 3.9.9
Repair open in YEL/RED 2-1 or YEL/
RED 2-2
Possible Causes: 4.1.64
Otherwise, repair open between
X013.1 and B+
Repair open in Red 1-1
3-123