JLG 660SJ Operator Manual - Manual (Page 30)

SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
2-8 – JLG Lift – 3121205
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 322.5 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).
c. Lift main boom up until 1000 lb. (454 kg for ANSI
markets and 450 kg for CE and Australia markets)
light comes on. The boom angle at this point should
be 55 degrees to 60 degrees.
d. Lift main boom down until 500 lb. (227 kg for ANSI
markets and 230 kg for CE and Australia markets)
light comes on. The boom angle at this point should
be 45 degrees to 50 degrees.
NOTE: If limit switch settings need to be changed, you will need
to recheck that the 500 lb. (227 kg for ANSI markets and
230 kg for CE and Australia markets) light comes on at 45
degrees to 50 degrees when lifting down.