Engine Powered Machine - Hydraulic Pump; Engine Powered Machine - Power; Ground Module - Power - JLG T350 Troubleshooting Manual

SECTION 3 - COMPONENT CHECKS

3.6 ENGINE POWERED MACHINE - HYDRAULIC PUMP

Step Pretest Instructions
3.6.1

3.7 ENGINE POWERED MACHINE - POWER

Step Pretest Instructions
3.7.1
3.7.2 Disconnect X008
3.7.3 Pull the ground emergency
stop switch and place key
switch in ground position
3.7.4 Pull the ground emergency
stop switch and place key
switch in ground position

3.8 GROUND MODULE - POWER

Step Pretest Instructions
3.8.1 Pull the ground emergency
stop switch and place key
switch in ground position
3.8.2
3-122
Test
Does the engine turn the
pump?
Test
Disconnect battery and check
for 12V across terminals
Measure voltage between
X099 and X008.1.soc
Check Voltage on X008.2
Check Voltage on X009.87
Test
Voltage between X008.2 and
X008.1 = Vbatt?
Test for continuity between
X008.1 and B- (X101 for
electric, X100 for engine)
T350 T500J
Result
Yes
No
Result
less than 12V
12V or greater
Vbatt
0V
0V
Vbatt
0V
Vbatt
Result
Yes
No
Yes
No
Corrective Action
Possible Causes: 4.1.37, 4.1.43,
4.1.46, 4.1.39
Possible Causes: 4.1.73
Corrective Action
Charge or replace batteries
Go to step 3.7.2
Go to step 3.7.3
Possible Causes: 4.1.5, 4.1.1
Go to step 3.7.4
Battery Power OK
See 3.9 Ignition Relay - Power
Repair open in YEL/RED 2-8
Corrective Action
Ground Module Power OK. Possible
Causes: 4.1.10
Go to step 3.8.2
See 3.2 DC Powered Machine -
Power or 3.7 Engine Powered
Machine - Power
Repair black ground wire between
X008.1 and B-
3121203