JLG 150HAX Operator Manual - Manual (Page 34)

SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
2-14 – JLG Lift – 3121213
NOTE: If the plunger is not fully extended, contact a qualified ser-
vice technician to further evaluate this condition before
operating the machine.
3. Try to extend the tower boom assembly.
NOTE: The boom should not extend and the red check light in
the ground console panel should illuminate. If the light
does not come on, contact a qualified service technician
to further evaluate this condition before operating the
machine.
4. Try to raise the main boom assembly.
NOTE: The boom should not raise and the red check light in the
ground console panel should illuminate. If the light does
not come on, contact a qualified service technician to fur-
ther evaluate this condition before operating the machine.
5. Attempt to lower the tower base boom with the tower fly
boom extended.
NOTE: The tower base boom should not lower and the red check
light in the ground console should illuminate. If the light
does not come on, contact a qualified service technician
to further evaluate this condition before operating the
machine.
6. Fully retract the tower boom. Lift the main boom several
feet. Attempt to lower the tower boom.
NOTE: Tower Lift down should not work and the red check light
in the ground console panel should illuminate. If the light
does not come on, contact a qualified service technician
to further evaluate this condition before operating the
machine.
Tower Boom Lift and Swing Systems
Raise and lower tower boom, then swing tower boom to
LEFT and RIGHT as swing cut-out will allow. Cycle functions
several times. Check for smooth elevation and swing motion.
Tower Boom Telescope System
Telescope tower boom IN and OUT several cycles at various
degrees of elevation. Check for smooth telescope operation.
Main Boom Lift System
Raise and lower main boom several times. Check for smooth
operation.
Main Boom Telescope System
Telescope main boom IN and OUT several cycles at various
degrees of elevation. Check for smooth telescope operation.