JLG 460SJ Service Manual - Manual (Page 274)

SECTION 4 - BOOM & PLATFORM
4-10 – JLG Lift – 3120895
4.4 DRIVE CARD SETUP PROCEDURES
Machine Orientation When Doing Speed
Tests
Lift: Boom Retracted. Telescope Retracted. Lift Up,
Record Time, Lift Down, Record Time.
Swing: Boom at Full Elevation. Telescope Retracted.
Swing the Turntable 360°, Record Time. Swing the Oppo-
site Direction 360°, Record Time.
Telescope: Boom at Full Elevation; Telescope Retracted;
Telescope Out, Record Time. Telescope In, Record Time.
Drive: Test to be done on a smooth level surface. Drive
Select Switch should be set at High Speed, High Engine.
Start approximately 25 ft. (7.62 m) from starting point so
that the unit is at maximum speed when starting the test.
Results should be recorded for a 200 ft. (60.96 m) course.
Drive Forward, record time. Drive Reverse, Record Time.
Drive (Above Horizontal): Test should be done on a
smooth level surface. Drive Select Switch should be set to
Low Speed, Low Engine. The Platform Speed Knob
should be selected out of the creep speed. This verifies
that the switches are working when the boom is above
horizontal. Results should be recorded for a 50 ft. course.
Drive Forward, Record Time. Drive Reverse, Record Time.
Platform Rotate: Platform level and completely rotated
one direction. Rotate the opposite direction, Record Time.
Rotate the other direction, Record Time.
Articulating Jib: Platform level and centered with the
boom. Start with the Jib down. Jib Up, Record Time. Jib
Down, Record Time.
Lower Lift: Upper Boom horizontal. Telescoped In. Lower
Lift Up, Record Time. Lower Lift Down, Record Time.
Test Notes
1.Stop watch should be started with the function, not with
the controller or switch.
2.All speed tests are run from the platform. These speeds
do not reflect the ground control operation.
3.The platform speed knob control must be at full speed
(turned clockwise completely).
4.Function speeds may vary due to cold, thick hydraulic
oil. Test should be run with the oil temperature
above 100° F (38° C).
Figure 4-8. Limit Switches - 460SJ
SEE DETAIL A
DETAIL A
ABOVE HORIZONTAL SWITCH
TO ACTIVATE WHEN BASE
BOOM IS RAISED 5 ° TO 10°
ABOVE HORIZONTAL. SWITCH
TO RESET WHEN BASE BOOM
LOWERED 1 ° BELOW TO 4°
ABOVE HORIZONTAL.
0271166-D