JLG 110HX ANSI Operator Manual - Manual (Page 57)

SECTION 4 - MACHINE OPERATION
3120635 – JLG Lift – 4-5
console to EXTEND until axles are fully extended
and the AXLES SET light is on. 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. Remove the tie rod lock pins, steer cylinder lock pin,
and axle lock pins.
8. Position LIFT control to DOWN and hold until the
steer wheels rise from the ground; it may be neces-
sary to feather the LIFT control to maintain wheel
elevation.
9. With the aid of an assistant, position EXTENDABLE
AXLE/STEER switch on platform console to EXTEND
until axles are fully extended.
10. 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. Cycle steer system in both directions to ensure tie
rod and steer cylinder are properly locked. You are
now ready to operate all machine functions.
13. To retract extendable axles:
a. Position STEER/AXLES valve located adjacent
to right front wheel to AXLES.
b. Activate the machine hydraulic system and raise
the boom and extend the boom no more than
eight (8) feet.
c. Position the boom over the steer wheel end of
the machine; on machines with fixed axles,
remove tie rod lock pins, steer cylinder pin and
axle lock pins.
NOTE: It may be necessary to elevate the wheels and jog
the steer control for removal of lock pins.
d. Position the 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.
e. Position EXTENDABLE AXLE/STEER switch
l o c a t e d o n p l a t f o r m c o n t r o l c o n s o l e t o
RETRACT, until axles are fully retracted.
f. Align steer wheels and insert tie rod lock pins
and steer cylinder pin. Install axle lock pins.
g. Position LIFT control to UP to lower the
machine; elevate the boom sufficiently and repo-
sition the boom over the drive wheel end of the
machine.
h. Position LIFT control to DOWN and hold until the
drive wheels rise from the ground; it may be nec-
essary to feather the LIFT control to maintain
drive wheel elevation.
i. Position EXTENDABLE AXLES/STEER switch,
on platform control console, to RETRACT, until
axles are fully retracted. Install axle lock pins.
j. Position LIFT control to UP to lower the machine
drive wheels; position STEER/AXLES valve to
STEER.
k. Cycle the steer system in both directions to
ensure the tie rods are properly locked.
Machines With Jacks
NOTE: For machines equipped with a front jack only, refer to
the instructions under Machines Without Jacks to
extend the rear axle.
1. Position STEER/AXLES valve, located on the front of
the frame, to AXLES.
2. Remove the axle lock pins on the applicable axle. If
extending the steer axle, also remove the tie rod lock
pins and steer cylinder lock pin.
3. Position the JACK/AXLES Select Switch to JACK
and position the JACK/AXLES control switch to
down and hold until the wheels on the selected axle
rise from the ground.