JLG E45A_AJ ANSI Operator Manual - Manual (Page 21)

SECTION 2 - PREPARATION AND INSPECTION
3120764 – JLG Lift – 2-5
2. Raise, extend, retract, and lower the Upper Boom.
Check for smooth operation.
3. If tower boom does not rest on stop with machine in
the stowed position, this indicates upright is out of
plumb.
4. Telescope boom IN and OUT several cycles at vari-
ous degrees of elevation lengths. Check for smooth
telescope operation.
5. Swing turntable to LEFT and RIGHT a minimum of
45 degrees. Check for smooth motion.
6. Check the chassis out of level indicator located on
the platform control console by driving, with the
machine in level position, up a suitable ramp of at
least 6° slope. Check the out of level alarm, with the
machine on the ramp, raise the upper boom until it
is parallel with the chassis. DO NOT RAISE ABOVE
THE PARALLEL POSITION. If the light does not illu-
minate, return the machine to a level surface, shut
down the machine, and contact a qualified techni-
cian before resuming operation.
DO N OT DRIVE ON GRADES WHICH EXCEED THE RATED
GRADEABILITY OF THE MACHINE AS INDICATED ON THE
SERIAL NUMBER PLATE. DO NOT DRIVE ON SIDESLOPES
WHICH EXCEED 5 DEGREES.
7. Check that platform self-leveling system functions
properly during raising and lowering of boom.
8. Check rotator for smooth operation and assure plat-
form will rotate 75 degrees in both directions from
centerline of boom.
9. Drive forward and reverse; check for proper opera-
tion.
10. Steer left and right; check for proper operation.
11. Footswitch.
FOOTSWITCH MUST BE ADJUSTED SO THAT FUNCTIONS WILL
OPERATE WHEN PEDAL IS APPROXIMATELY AT ITS CENTER OF
TRAVEL. IF SWITCH OPERATES WITHIN LAST 1/4" (6 MM) OF
TRAVEL, TOP OR BOTTOM, IT SHOULD BE ADJUSTED.
FOOTSWITCH MUST BE DEPRESSED PRIOR TO ACTIVATING ANY
FUNCTION CONTROL, OTHERWISE THE FUNCTION WILL NOT
WORK.
With footswitch depressed, operate LIFT and hold
control. Remove foot from footswitch, motion should
stop. If it does not, shut down machine and contact
a qualified service technician.
12. Place the GROUND/PLATFORM SELECT switch to
GROUND. Platform controls should not operate.
13. Place GROUND/PLATFORM SELECT switch to OFF.
Platform/Ground controls should not operate.
2.6 TORQUE REQUIREMENTS
The Torque Chart (Figure 2-5) consists of standard torque
values based on bolt diameter and grade, also specifying
dry, wet and loctite torque values in accordance with rec-
ommended shop practices. This chart is provided as an
aid to the operator in the event he/she notices a condition
that requires prompt attention during the walk-around
inspection or during operation, until the proper service
personnel can be notified. The Service and Maintenance
section provides specific torque values and periodic main-
tenance procedures with a listing of individual compo-
nents. Utilizing this torque chart in conjunction with
preventive maintenance section will enhance safety, reli-
ability, and performance of the machine.