JLG 660SJ Operator Manual - Manual (Page 75)

SECTION 4 - MACHINE OPERATION
3121205 – JLG Lift – 4-17
5. Turn hydraulic power tool switch “ON”. Oil will now flow
to the tool. It is possible to adjust the flow control knob
during operation to achieve desired tool performance.
6. When finished, turn the hydraulic tool switch “OFF”.
7. Disconnect tool from the quick-disconnects.
TURN HYDRAULIC TOOL SWITCH TO THE “OFF” POSITION IN ORDER
TO SWITCH TOOLS.
NOTE: The tool circuit will not work with the foot switch
depressed. If the foot switch is depressed during tool cir-
cuit operation the tool circuit will stop functioning until the
foot switch is released.
NOTE: The tool is designed to operate at 2600 psi (179 Bar). If
necessary this can be adjusted for a higher or lower pres-
sure.
NOTE: With the foot switch released to operate the tool circuit all
drive and boom functions are cut out.
4.16 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 pro-
vided in the frame slab, one at each corner of the machine.
(See Figure 4-3. Machine Tie Down.)
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 4-4. Lifting
Chart.)
NOTE: If not equipped, front lifting eyes on the S Models
machines are available. (P/N 3539590)
NOTE: Lifting eyes are provided at the front and rear in the frame
slab. 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 TRAVELING
LONG DISTANCES OR HAULING MACHINE ON TRUCK/TRAILER.