JLG 600A Operation And Safety Manual page 35

SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
7. Check elevation limit switch as follows:
Main Boom Angle Limit Switch.
a. Lift boom up to 5 degrees above horizontal. Limit
switch should activate at this point.
b. Lift main boom down until limit switch resets. This
should be 4 degrees to 9 degrees below horizontal.
NOTE: Angle indicator should be placed between the main boom
pivot pin and the main boom lift cylinder attach point on
the base boom. On machines not equipped with ADE, the
main boom angle limit switch activation may be checked
by using test light in terminal # 24 in the main terminal
box. Tower angle switch must be reset before main boom
angle switch can be activated.
Tower Boom Angle Limit Switch.
a. Place machine on level surface.
b. Using the bottom of the upright and the ground as a
reference, lift the tower boom 40" to 42" (101.6 to
106.6 cm) from the stowed position. The tower
boom angle limit switch should activate at this
point.
c. Lower the tower boom 25" to 30" (63.5 to 76.2 cm)
from where the switch activated. This switch should
reset at this point.
3121204
NOTE: On machines not equipped with ADE, the tower boom
angle limit switch activation may be checked by using a
test light in terminal #43 on the main terminal box.
NOTE: Step 8 is only applicable for 600A ANSI market machines.
8. Check capacity limit switch as follows:
Main Boom Length Switch.
a. Lift main boom to approximately horizontal.
b. Telescope boom out until 500 lb. (227 kg for ANSI
markets and 230 kg for CE and Australia markets)
light comes on (may need to used auxiliary power
to position boom correctly).
c. Mark the wear pad location on the main fly boom.
d. Telescope the main boom to full extension.
e. Measure from the mark on the fly boom to the wear
pad. The dimension should be 125" to 127" (317.5
to 322.6 cm).
Main Boom Angle Switch.
a. Lift main boom to approximately horizontal.
b. Telescope boom out until 500 lb. (227 kg for ANSI
markets and 230 kg for CE and Australia markets)
light comes on (may need to used auxiliary power
to position boom correctly).
– JLG Lift – 2-13