JLG 110HX Service Manual - Manual (Page 111)

SECTION 2 - PROCEDURES
3120864 – JLG Lift – 2-87
9. If boom does not stop at white tape or boom can be
extended after being retracted 3 meters without
resetting, system must be repaired by JLG autho-
rized service personnel before machine can be
used.
2.32 LOAD MANAGEMENT SYSTEM
ADJUSTMENT
Turntable 4620038
1. With boom retracted, limit switch and proximity
switch are in neutral position.
2. Extend boom in horizontal position until white tape
on inner mid boom is fully exposed, no load in plat-
form.
3. Adjust actuator to trip switch, then secure locking
nut.
4. Adjust proximity switch target until LED light goes
off, then secure locking nut.
5. To test cutoff switches, retract boom to reset posi-
tion, then extend boom to test cutoff. Do not extend
boom past white tape.
6. To test limit switch, retract boom to reset, then
extend boom to cutoff while holding test bypass
switch in “M” position. To test proximity switch,
retract boom to reset, then extend boom to cutoff
while holding test bypass switch in “P” position.
When testing switches, do not extend boom past
white tape on inner mid boom.
Turntables 4620044 and 4620078
1. With boom retracted, limit switch and proximity
switch are in neutral position.
2. Extend boom in horizontal position until white tape
on inner mid boom is fully exposed, no load in plat-
form.
3. Adjust proximity switch target until LED light comes
on (switch is tripped), then secure locking nut.
4. Adjust actuator to trip switch, then secure locking
nut.
5. To test cutoff switches, retract boom to reset posi-
tion, then extend boom to test cutoff. Do not extend
boom past white tape.
6. To test limit switch, retract boom to reset, then
extend boom to cutoff while holding test bypass
switch in “M” position. To test proximity switch,
retract boom to reset, then extend boom to cutoff
while holding test bypass switch in “P” position.
When testing switches, do not extend boom past
white tape on inner mid boom.
2.33 TURNTABLE SPRINGS
Turntable 4620038
1. Removal.
a. Fully retract boom.
b. Remove six (6) nuts and jam nuts from beneath
turntable which attach to turntable spring bolts.
c. Remove cover from load management switches.
Remove bolts which attach load management
switches to underside of turntable. Allow
switches to hang freely from underside of
machine.
WRAP MASKING TAPE AROUND THE LOAD MANAGEMENT
SWITCHES TO INSURE THAT THE SWITCHES WILL STILL BE
OPERABLE.
d. Position boom to horizontal.
e. Telescope boom until white marking tape on mid
boom is visible.
f. Remove two (2) bolts from turntable spring lock-
ing bar located inside of turntable. Remove lock-
ing bar.
g. Fully retract boom.
h. Remove six (6) bolts, spacers and turntable
springs from turntable.
2. Installation.
a. Install six (6) bolts, spacers and turntable
springs onto turntable.
b. Telescope boom until white marking tape on mid
boom is visible.
c. Install turntable spring locking bar located inside
turntable.
d. Fully retract boom.
e. Fully elevate boom.
f. Install six (6) nuts and jam nuts on turntable
spring bolts. Torque jam nuts to 75 ft. lb. (102
Nm), then torque nuts to 75 ft. lb. (102 Nm).
g. If removed, install load management switches
on mounting brackets.
h. Position boom to horizontal. Refer to paragraph
2-28 and adjust load management switches as
required.