JLG 450A_AJ Series II Service Manual - Manual (Page 375)

SECTION 6 - JLG CONTROL SYSTEM
3121180 – JLG Lift – 6-39
6.8 SYSTEM TEST
The Control System Incorporates a built-in system test to
check system components and functions.
Test from Platform
1. Position Platform/Ground select switch to Platform.
2. Plug analyzer into connector at base of platform
control box.
3. Pull out Emergency Stop switch and start engine.
4. The analyzer screen should read:
5. Use arrow button to reach SYSTEM TEST and press
Enter. Analyzer prompts you asking if you want to
activate the system test; press Enter again to acti-
vate.
6. Follow flow path in Figure 6-14., System Test Flow
Chart - Platform Tests and go through component
tests. Press ESC key during any part of test to return
to main menu without completing all tests or wait
until all tests are complete. During TEST ALL
INPUTS sequence, the analyzer allows control
switches to be operated and shows if they are
closed (CL) or open (OP).