JLG 80HX_HX+6 Operator Manual - Manual (Page 69)

SECTION 4 - MACHINE OPERATION
4-6 – JLG Lift – 3120890
4.10 TIE DOWN AND LIFTING
When transporting machine, boom must be in the stowed
mode with turntable lock pin engaged and machine
securely tied down to truck or trailer deck. Four tie down
eyes are provided in the frame slab, one at each corner of
the machine.
If it becomes necessary to lift the machine using an over-
head or mobile crane, it is very important that the lifting
devices are attached only to the designated lifting eyes,
and that the turntable lock pin is engaged. See Figure 4-
2, Lifting Chart.
NOTE: Lifting eyes are provided at the front of the frame
slab and rear of the turntable. Each of the four
chains or slings used for lifting machine must be
adjusted individually so machine remains level when
elevated.
SECURE TURNTABLE WITH TURNTABLE LOCK BEFORE TRAV-
ELING LONG DISTANCES OR HAULING MACHINE ON TRUCK/
TRAILER.
4.11 AXLES, EXTENDING AND RETRACTING
NOTE: Throughout the text, there are references made to
fixed axle machines. Fixed axle machines have
retaining pins for the axles, steer cylinders, and tie
rods. Machines equipped with oscillating axles do
not have these retaining pins and all extending and
retracting operations are performed from the plat-
form without the aid of an assistant.
Machines Without Jacks
1. From ground control, activate the machine
hydraulic system. Raise the boom and extend
the boom no more than 2.4 meters.
2. Position STEER/AXLES valve, located adjacent
to right front wheel, to AXLES.
3. Position boom over drive wheel end of
machine. On machines with fixed axles,
remove axle lock pins.
D O N O T U S E E X T E N D - A - R E A C H ( I F E Q U I P P E D ) TO LI FT
MACHINE WHEN EXTENDING AND RETRACTING AXLES.
NOTE: On machines equipped with Soft Touch Proximity
System, the operator must press and hold the over-
ride button on the front of the control box in order to
lift the drive wheels from the ground.
4. Position LIFT control to DOWN and hold until
drive wheels rise from the ground; it may be
necessary to feather the lift control to maintain
drive wheel elevation.
5. With the aid of an assistant, position EXTEND-
ABLE AXLE/STEER switch located on platform
control console to LEFT until axles are fully
extended. On machines with fixed axles, install
axle lock pins.
6. Position LIFT control to UP to lower the
machine; elevate the boom sufficiently and
reposition the boom over the steer wheel end
of the machine.
7. On machines with fixed axles, remove the tie
rod lock pins, steer cylinder lock pin, and axle
lock pins.
NOTE: On machines equipped with Soft Touch Proximity
System, the operator must press and hold the over-
ride button on the front of the control box in order to
lift the steer wheels from the ground.
8. Position LIFT control to DOWN and hold until
the steer wheels rise from the ground; it may
be necessary to feather the LIFT control to
maintain wheel elevation.
9. With the aid of an assistant, position EXTEND-
ABLE AXLE/STEER switch on platform console
to LEFT until axles are fully extended.
10. On machines with fixed axles, align steer
wheels and insert tie rod lock pin, axle lock
pins, and steer cylinder lock pins.
11. Position LIFT control to UP to lower the
machine steer wheels; position STEER/AXLES
valve to STEER.
12. On machines with fixed axles, cycle steer sys-
tem in both directions to ensure tie rod and
steer cylinder are properly locked. You are now
ready to operate all machine functions.