Section A. Introduction - JLG T350 Troubleshooting Manual

A.1 HOW TO USE THIS MANUAL
Troubleshooting system problems can be difficult. System wiring and hydraulic diagrams are provided in this book to help
isolate problems.
Follow the flow chart of Figure A-1.
Each troubleshooting step setup is specified in the step instructions and applies only to that step. Any special wiring
should be removed after completing the step.
When a function will not operate with the same speed or power as a machine in good working condition, refer to the Trouble-
shooting By Function topic which most closely describes the problem.
Conclude each session by rerunning the system test, checking for other problems.
If this method does not identify the problem, contact the factory for assistance.
Using Analyzer,
Run Platform and
Ground System
Tests
"Ground/
Everything OK"
Yes
No
Troubleshoot by
function in Section
1
3121203

SECTION A. INTRODUCTION

Start
Is Distress
No
Lamp Blinking?
No
Possible Causes
Component
Checks
Identify Fault
Repair Machine
Problem
Solved?
Yes
Done
Figure A-1. Troubleshooting Flow Chart
T350 T500J
Plug in Analyzer
Yes
and read Help
Message
Troubleshoot by
Help Message in
Section 2
INTRODUCTION
A-5