Machine Orientation When Performing Test - JLG E450A Service And Maintenance Manual

SECTION 6 - JLG CONTROL SYSTEM
6.3 MACHINE ORIENTATION WHEN PERFORMING
TEST
Drive (Below elevation): Test should be done on a smooth,
level surface. The Drive select switch should be in the "Max
Speed" position. Start approximately 25ft (7.6m) from starting
point so the unit is at a maximum speed when starting the
test. Result should be recorded for a 200ft (61m) course. Drive
Forward, "High speed", record time. Drive Reverse, "High
speed", record time.
Drive Reduced (below elevation): Test should be done on a
smooth, level surface. The Drive select switch should be in the
"Reduced Speed" position. Start approximately 25ft (7.6m)
from starting point so the unit is at a maximum speed when
starting the test. Result should be recorded for a 200ft (61m)
course. Drive Forward, "Reduced speed", record Time. Drive
Reverse, "Reduced speed", record Time.
Drive (above elevation): Test should be done on a smooth,
level surface. The drive select switch should be in the "Max
Speed" position, the boom should be >10° above horizontal to
ensure the drive is operating in elevated mode. Result should
be recorded for a 50ft (15.2m) course. Drive Forward, Record
Time. Drive reverse, Record Time.
Swing: Boom at full elevation, Telescope retracted. Swing
turntable right to end stop. Swing Left to end stop, record
time. Swing Right to end stop, record time. Turn Platform
Speed Control Knob fully counterclockwise to enter Creep
mode; Creep light on Panel must be energized. Verify that
machine will Swing left and right. Return Knob to fully coun-
terclockwise.
Tower Lift: Tower Lift in stowed position, Telescope Retracted,
Main lift horizontal. Tower Lift Up, record time. Tower Lift
Down, record time. Turn Platform Speed Control Knob fully
counterclockwise to enter Creep mode; Creep light on Panel
must be energized. Verify that machine will Tower Up and
Down. Return Knob to fully clockwise.
6-22
Main lift: Main Lift in stowed position Tower Lift in stowed
position, Telescope Retracted. Main Lift Up, record time. Main
Lift Down, record time. Turn Platform Speed Control Knob fully
counterclockwise to enter Creep mode; Creep light on Panel
must be energized. Verify that machine will Lift Up and Down.
Return Knob to fully clockwise.
Telescope: Main Lift at full elevation, Telescope Retracted.
Telescope Out, record time. Telescope In, record time. Turn
Platform Speed Control Knob fully counterclockwise to enter
creep mode; creep light on Panel must be energized. Verify
that machine will Telescope Up and Down. Return Knob to
fully clockwise.
Jib Lift: Platform level and centered with boom. Jib Lift Down
until stop. Jib Lift Up, record time. Jib Lift Down, record time.
Turn Platform Speed Control Knob fully counterclockwise to
enter Creep mode; Creep light on Panel must be energized.
Verify that machine will Jib Lift Up and Down. Return Knob to
fully clockwise.
Jib Swing: Platform level and centered with boom. Jib Lift
Horizontal and swing fully to left stop. Swing right to end stop,
record time. Swing left to end stop, record time. Turn Platform
Speed Control Knob fully counterclockwise to enter Creep
mode; Creep light on Panel must be energized. Verify that
machine will Jib swing left and right. Return Knob to fully
clockwise.
Platform Rotate: Platform level, Rotate Platform Right until
stop. Platform Left, record time. Platform Right, record time.
Turn Platform Speed Control Knob fully counterclockwise to
enter Creep mode; Creep light on Panel must be energized.
Verify that machine will Platform Rotate Left and Right. Return
Knob to fully counterclockwise.
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