Swing control valve -2 – JLG X390AJ Operator Manual User Manual
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SECTION 3 - MACHINE CONTROLS, INDICATORS AND OPERATION
3-2
– JLG Lift –
3128792
5. Tower Boom Lift Control
Provides raising and lowering of the tower boom.
6. Main Boom Lift Control
Provides raising and lowering of the main boom.
7. Telescope Control
Provides extension and retraction of the main boom.
8. Jib Lift
Provides raising and lowering of the jib.
ONLY USE THE PLATFORM LEVELING OVERRIDE FUNCTION FOR
SLIGHT LEVELING OF THE PLATFORM. INCORRECT USE COULD
CAUSE THE LOAD/OCCUPANT TO SHIFT OR FALL. FAILURE TO DO
SO COULD RESULT IN DEATH OR SERIOUS INJURY.
9. Platform Level Control
Provides for positioning the platform up and down to
adjust the level of the platform.
10. Swing Control (See Figure 3-1.)
Provides swing to the left or right of the boom/turntable
assembly. Located on the left rear of the machine, just in
front of the electric engine breaker box.
Figure 3-1. Swing Control Valve
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