JLG LT3 Use and care manual

1001281353 JLG Industries (Australia) Pty Ltd Page 1-1
Oshkosh Corporation 28JUL22
JLG LT3
OshkoshCorporationClassification‐Restricted
Lighting Tower
Models
JLG LT3
1001281353
Jul
y
28, 2022
OperationandSafetyManual

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Oshkosh Corporation 28JUL22
JLG LT3
OshkoshCorporationClassification‐Restricted

1001281353 JLG Industries (Australia) Pty Ltd Page 1-3
Oshkosh Corporation 28JUL22
JLG LT3
OshkoshCorporationClassification‐Restricted
CONTENTS
Section One………………………………….Operation and Safety
Customer Support
JLG Industries
(Port Macquarie)
11 Bolwarra Road
Port Macquarie
NSW 2444
Phone: [phone]
JLG Industries
(Victoria)
30-32 Cyber Loop
Dandenong
VIC 3175
Phone: [phone]
JLG Industries
(South Australia)
9 Nucera Court
Green Fields
SA 5107
Phone: [phone]
JLG Industries
(New South Wales)
358 Park Road
Regents Park
NSW 2143
Phone: [phone]
JLG Industries
(Queensland)
223 Fison Avenue West
Eagle Farm
QLD 4009
Phone: [phone]
JLG Industries
(Western Australia)
39 Kewdale Road
Kewdale, Perth
WA 6105
Phone: [phone]
JLG Industries
(New Zealand)
2b Fisher Crescent
Mt Wellington, Auckland
New Zealand
Phone: + 64 9276 1728

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SECTION ONE
OPERATION AND SAFETY MANUAL
CONTENTSPage
1.0 INTRODUCTION……………………………1-05
1.1 SAFETY ALERT SYMBOLS……………….1-06
1.2 SAFETY PRECAUTIONS………………….1-07
1.3 INSPECTION & PREPARATION..…….….1-09
1.4 MACHINE CONTROLS…………………….1-12
1.5 MACHINE OPERATION…….……………..1-14
1.6 LIFTING & TRANSPORTATION…...……..1-21
1.7 MACHINE STORAGE.……………………..1-22
1.8 MACHINE SPECIFICATION……………....1-24
1.9 LIGHTHEAD ISOLUX PLOTS……………..1-26

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Oshkosh Corporation 28JUL22
JLG LT3
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1.0 INTRODUCTION
This manual provides the information necessary to safely operate, service and maintain the
JLG LT3 lighting tower. The manual is divided into four sections.
Section 1 Operation and Safety
Section 2 Maintenance and Service
Section 3 Illustrated Parts
Section 4 Recommended Spare Parts
Specific operating details are contained in this publication to familiarise the operating
personnel with the correct and safe procedures necessary to operate this equipment.
The user/operator of the lighting tower shall not accept operating responsibility until this
manual has been read and understood and the user has operated the lighting tower whilst
supervised by a competent person. If there is a question on application and/or operation,
JLG Industries (Australia) Technical Services should be contacted on 131JLG.
All instructions in this manual require the lighting tower to be operated in the conditions for
which it was designed. In reading this manual, pay attention and adhere to all Safety related
Cautions and Warnings.
MODIFICATION OF THE JLG LT3 LIGHTING TOWER WITHOUT THE PRIOR WRITTEN
APPROVAL OF JLG INDUSTRIES (AUSTRALIA) IS PROHIBITED.
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1.1 SAFETY ALERT SYMBOLS AND SAFETY WORDS
This is the Safety Alert Symbol. It is used to alert you to
potential personal injury hazards. Obey all safety
messages that follow this symbol to avoid possible injury
or death.
INDICATES AN IMMINENTLY HAZARDOUS SITUATION. IF NOT
AVOIDED, WILL RESULT IN SERIOUS INJURY OR DEATH.
INDICATES A POTENTIALLY HAZARDOUS SITUATION. IF NOT
AVOIDED, COULD RESULT IN SERIOUS INJURY OR DEATH.
INDICATES A POTENTIALLY HAZARDOUS SITUATION. IF NOT
AVOIDED, MAY RESULT IN MINOR OR MODERATE INJURY. IT
MAY ALSO ALERT AGAINST UNSAFE PRACTICES.
INDICATES INFORMATION OR A COMPANY POLICY THAT
RELATES DIRECTLY OR INDIRECTLY TO THE SAFETY TO THE
SAFETY AND PROTECTION OF PERSONNEL AND PROPERTY.
INDICATES PROCEDURES ESSENTIAL FOR SAFE OPERATION.
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1.2 SAFETY PRECAUTIONS
This section outlines the safety
precautions applicable to the general use
of this lighting tower.
Throughout the Operation and Safety
section of this manual, cautions and
warnings are shown in BOLD TYPE.
These outline where special care is
required when undertaking the various
procedures outlined.
Safety precautions applicable to machine
service and maintenance are in the
SAFETY PRECAUTIONS section of the
Service and Maintenance Manual.
The user of this machine should read and
study this manual thoroughly to ensure
that all operating procedures are clearly
understood prior to accepting
responsibility.
1. Modifications or alterations to the
lighting tower are not permitted without
the prior written permission of the
manufacturer.
2. Failure to comply with the safety
precautions listed here and elsewhere
in the manual may result in injury or
death.
3. When moving the lighting tower by
forklift use the forklift tyne pockets
running through the LT3’s base. Ensure
that the forklift is rated to handle the
lighting tower prior to attempting the lift.
4. When lifting the lighting tower by
craning use the rated lifting point
provided on the lighting tower mast.
Ensure that the crane is rated to lift the
lighting tower prior to attempting the lift.
Refer to the diagrams and illustrations
shown elsewhere in this manual for
correct handling procedures using a
crane and forklift.
DO NOT POSITION THE LIGHTING
TOWER INSIDE THE PROHIBITED
(M.A.D.) ZONE. ASSUME ALL
ELECTRICAL PARTS AND WIRING
ARE ENERGISED UNLESS KNOWN
OTHEREWISE.
5. Maintain distance from electrical lines,
apparatus, or any energized (exposed or
insulated) parts according to the
Minimum Approach Distance (MAD) as
shown in Table 1-1.
6. Maintain a clearance of at least 3 m
(10.0 ft) between any part of the lighting
tower from any electrical line or
apparatus carrying up to 50 000 volts.
An additional clearance of 0.3 m (1.0 ft)
is required for each additional 30 000
volts or less of line voltage.
7. The minimum approach distance may
be reduced if insulating barriers are
installed to prevent contact, and the
barriers are rated for the voltage line
being guarded. These barriers shall not
be part of (or attached to) the machine.
The minimum approach distance shall
be reduced to a distance within the
designed working dimensions of the
insulating barrier.
8. A reduced minimum approach distance
shall be determined by a qualified
person in accordance with the
employer, local, or government
requirements for safe work practices
near energised equipment.
Voltage Range
(phase-to-phase)
Minimum Approach
Distance
metres (feet)
0 to 50 kV 3 (10)
over 50 kV to 200 kV 5 (15)
ove
r
200 kV to 350 kV 6 (20)
ove
r
350 kV to 500 kV 8 (25)
over 500 kV to 750 kV 11 (35)
over 750 kV to 1000 kV 14 (45)
Note: This requirement shall apply except where
employer, local or government regulations are
more stringent.
Table 1-1. Minimum Approach Distances (M.A.D.)
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1.2 SAFETY PRECAUTIONS

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The JLG LT3 lighting tower is designed
for outdoor worksites and features a
permanent-magnet generator powering
four low-voltage D.C. LED floodlights.
DO NOT OPERATE THIS LIGHTING
TOWER WITH ANY SAFETY COVER
REMOVED. ALL WIRING AND
ELECTRICAL DEVICES ARE TO
REMAIN COVERED.
DO NOT MODIFY OR IN ANY WAY
ALTER THE MACHINE’S ELECTRICAL
SYSTEM COMPONENTS OR WIRING.
1. JLG LT3 lighting towers are designed
specifically to use the LED floodlights
supplied. Alternative lights should not
be fitted unless authorised by JLG.
2. Do not operate the lights within easy
reach of people’s hands. Even after the
lights have been switched-off, the lamp
fixtures can remain hot for some time.
3. The tower mast is NOT a lifting device.
Do NOT attempt to lift any object by
using or modifying or altering the mast
and/or the lighting tower hydraulic
system.
4. There are moving parts in and around
the engine and alternator area (genset)
of the lighting tower. Prior to carrying
out any maintenance or accessing the
engine bay area, ensure the lighting
tower mast is fully retracted and stowed,
the genset shutdown and the electrical
system made safe.
5. An operator must understand all
lighting tower controls and operating
envelope before using the lighting
tower. Always set-up and operate the
JLG LT3 lighting tower outdoors. Never
operate this machine in confined
spaces or where ventilation is poor.
6. The LT3 lighthead tilts and rotates, atop
a multi-section telescopic mast. The
mast is raised and lowered by an
interconnected wire-rope pulley system,
driven by a hydraulic lift cylinder.
THE LIGHTING TOWER TELESCOPIC
MAST AND LIGHTHEAD ASSEMBLIES
HAVE HAZARDOUS CRUSHING AND
PINCH POINTS. DO NOT PLACE ARMS,
HANDS ETC. ANYWHERE NEAR THE
MAST WHEN IT’S RAISED OR
LOWERED OR NEAR THE LIGHTHEAD
WHEN IT’S TILTED OR ROTATED.
7. Before raising the mast, ensure that the
ground is suitable to support and level
the lighting tower.
If need be, place suitable packing
material such as hardwood timber
offcuts under each jack pad to
distribute the lighting tower’s weight
over soft ground surfaces.
FAILURE OF THE OUTRIGGERS TO
SUPPORT THE LIGHTING TOWER ON
SOFT SURFACES COULD CAUSE THE
LIGHTING TOWER TO TIP OVER.
NEVER RAISE THE MAST WITHOUT
FIRST SETTING ALL OUTRIGGERS
AND JACK LEGS AND ENSURING THE
LIGHTING TOWER IS LEVEL. A
BUBBLE LEVEL IS MOUNTED ON THE
LT3 ROOF PANEL
DO NOT SET-UP OR OPERATE THE
LIGHTING TOWER IN CONDITIONS
WHERE WIND SPEED IS LIKELY TO
EXCEED 80 km/hr. TIPPING OR
OVERTURNING OF THE LIGHTING
TOWER IS POSSIBLE.
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1.2 SAFETY PRECAUTIONS

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1.3 LIGHTING TOWER
COMPONENTS
Figure 1.3.1 JLG LT3 Lighting Tower
Telescopic
Mas
t
Lighthead
Frame
Lighthead
Rotator
Lighthead
Tilt Cylinder
Fire
Extinguisher
Mast Cable
Chute
LED Light
X 4
Levelling Jack
X 4
Outrigger Arm
X 4
Control
Panel Door
Fork Pockets
X 4
Fuel Tank
A
ccess Door
Tie-Down Point
X 4
1.3 INSPECTION & PREPARTION

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JLG LT3
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Figure 1.3.2 JLG LT3 Lighting Tower
Figure 1.3.3 JLG LT3 Lighting Tower
Engine/Genset
A
ccess Door
Engine Radiator
A
ccess Door
Engine
Exhaust
Vent
Radiator
Vent
Mast Lift
Hydraulic
C
y
linder
Emergency
Stop Button
Operation & Safety
Manual
Stora
g
e Box
Lifting Lug
1.3 INSPECTION & PREPARTION
Mast / Lighthead
V-rest

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1.3.1 DELIVERY & PERIODIC (DAILY)
INSPECTION
REGULAR PERIODIC INSPECTIONS ARE
NECESSARY FOR MACHINE SERVICING
AND MAINTENANCE.
1. This machine requires daily inspection
and periodic safety and maintenance
inspections by competent personnel.
2. Particular attention is required during
daily checks to ensure the machine is
free of structural discrepancies and the
lighting tower functions as designed.
.
Fig 1.3.4 Structural Discrepancies
3. There should be no abnormal noise or
vibration during the machine’s operation.
4. Should an operator become aware of
any abnormal operation or condition
while using the machine, then it should
be shut down immediately, stowed safely
and the problem reported to an
authorised person.
5. All machines require both preventive
and corrective maintenance throughout
their useful service life to maintain the
machine in a safe and reliable condition.
6. Reference should be made to Section 2
of this manual (LT3 Service and
Maintenance) for procedures relating to
regular and periodic machine inspections
1.3.2 MACHINE PREPARATION
1. Some locations may require approval
by a regulatory authority before setting
up and using this lighting tower. For
example, near airports or railway lines.
2. Ensure the machine set up location is
clear of any dangers such as roads
with moving traffic, moving machinery
etc. Prior to use, ensure the lighting
tower is positioned on firm ground.
Barriers, fences, and warning signs
maybe required to cordon-off the
machine from the public.
3. Carefully inspect the machine for
evidence of structural damage resulting
from shipment. Ensure that all warning
decals have been read and understood
prior to operating machine.
4. Prior to starting the JLG LT3 engine
check whether there is sufficient,
a) engine radiator coolant….
b) engine oil………………….
c) engine fuel………………..
d) hydraulic system fluid……
5. Preparation for use of the machine
requires a complete function check
together with a visual inspection to
ensure a properly working unit. The
following need to function correctly.
 All outrigger arms slide in and out
freely and that the spring-operated
plunger pins engage and lock the
arms when fully extended and fully
retracted. Confirm all jacking legs
can be wound up and down freely
and jack feet are not bent.
 The telescopic mast and lighthead
moves smoothly when raised and
lowered. Check wear pads for signs
of adverse wear.
 Light-head LED fixture pivots and
swivel connections are done-up tight.
6. Check and drain bunding if necessary.
1.3 INSPECTION & PREPARTION

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1.4.1 CONTROL PANEL
Fig 1.4.1 LT3 Control Module
Legend Key
Enable Button.
This yellow button must remain pressed to
allow control of tower mast raise/lower and
lighthead rotate/ tilt movements.
Mast Raise/Lower Switch
This switch raises/lowers/locks the mast
Toggle switch up to ‘raise’ the mast.
Toggle switch down to ‘lower’ the mast.
Release switch to lock mast rotation angle.
Lighthead Tilt Switch
Operating this switch will tilt the lighthead.
Toggle switch down to tilt lighthead ‘down’.
Toggle switch up to tilt lighthead ‘up’.
Release switch to lock lighthead position.
Lighthead Rotation Switch
Operating this switch rotates the lighthead.
Toggle switch up to rotate head right-left
Toggle down to rotate head left-right.
Release switch to lock lighthead rotation.
1.4.2 LIGHTHEAD ROTATION
Fig 1.4.2 LT3 with Option 2 Lighthead
The LT3 has two lighthead rotation options.
Option 1 Manual rotation through ±180°
With this option the mast must be fully
retracted and all four LED lights
switched ‘OFF’
The spring-loaded plunger pin must be
pulled out and held before rotating the
lighthead. The mast can be indexed and
locked at 45° increments.
DO NOT MANUALLY ROTATE THE
LIGHTHEAD OR ADJUST THE LED
LIGHT FIXTURES WITH GENSET
RUNNING AND LED LIGHTS ‘ON’.
ALWAYS ENSURE THE LT3 IS
ELECTRICALLY SAFE WITH THE
EMERGENCY STOP ACTIVATED.
ALLOW SUFFICIENT TIME FOR THE
LED LIGHTS TO COOL BEFORE
MAKING ADJUSTMENTS.
Option 2 Electro-Mechanical Slew-Drive
combined with Slip-Ring.
This slew-drive allows the lighthead to
rotate ±360°. The slew-drive is operated
by control-panel toggle-switch and enable
button.
1
1
2
2
3
3
1.4 MACHINE CONTROLS
O
O
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1.4.3 ANCILIARIES
Fig 1.4.3 LT3 Control Panel
Machine Manuals Storage Box
Sight Bubble Level
Fig 1.4.4 Bubble-Level Location
1.4.4 EMERGENCY STOP
THE EMERGENCY STOP (circled)
OVERRIDES THE LT3 CONTROL
MODULE TO SHUT DOWN THE ENGINE.
Fig 1.4.5 Emergency Stop Location
Fig 1.4.6 Component Locations
Battery Isolator
M
M
B
1.4 MACHINE CONTROLS
EMERGENCY
STOP
L
L

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1.5 MACHINE SET-UP
The following setup instructions are
applicable when the lighting tower is
positioned on firm ground in a safe
operating location.
The LT3 is transported by truck and then
fork-lifted or craned into position. Ensure
the lighting tower is placed on firm ground
and that all four outrigger arms are locked
at maximum extension and the machine
levelled using the jacks. Failure to do so
may affect the stability of the machine
under some operating conditions.
1.5.1 LT3 SET-UP OUTRIGGERS &
LEVELLING JACKS
1. Select a flat level area to position the
lighting tower.
2. Pull-out and hold the outrigger locking
pin, before extending an outrigger arm.
Release the spring locking pin.
Continue extending until the outrigger
arm inner hole locates the locking pin.
3. Release and hold the jack locking pin.
Rotate the jack from the stowed
position through 180 until the foot is
just above the ground. Turn the jack
handle so the jack foot makes ground
contact.
4. Repeat steps 2 and 3 to extend and
set the other outriggers and jacks legs.
5. Adjust each outrigger jack until the
machine is level and the foot plate of
each outrigger support jack makes
firm ground contact. Approximately
one turn after contact. Do not attempt
to raise the machine by over-
extending the jack legs..
It is not necessary to raise the lighting
tower’s base above the ground when
setting the outrigger jacks.
When set up correctly the base may
still make firm contact.
A bubble-level, fixed to the LT3’s roof
panel, is used to assist the operator
with levelling the lighting tower on
uneven surfaces.
6. Ensure the LED floodlights are
adjusted and locked in position before
raising and rotating the lighthead.
7. If fitted, ensure all wire-cable lanyards
connect and secure all four LED light
fixtures to the lighthead frame.
Fig 1.5.1
Fig 1.5.2
1.5 MACHINE OPERATION

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1.5.2 LED FLOODLIGHT
ADJUSTMENT
All four LED floodlights are trunnion mounted.
Each LED floodlight can be independently
rotated and swivelled.
Fully retract the mast with lighthead horizontal
before adjusting the LED floodlight orientation.
To rotate the LED floodlight in its trunnion
1. Loosen the LED light fixture lever
2. Pull-out and hold the indexing pin.
3. Rotate the LED floodlight into position
4. Release the spring indexing pin
5. Tighten the LED light fixture lever
Fig 1.5.3 LED Light Tilt Adjustment
Fig 1.5.4 LED Light Tilt Adjustment
To swivel the LED floodlight trunnion
1. Loosen the M16 nyloc nut on the M16 bolt
pivot using two 24 mm ring spanners.
Fig 1.5.5 LED Light Trunnion Rotation
2. Rotate the trunnion to the required angle
Fig 1.5.6 LED Light Trunnion Rotation
3. Hold the light trunnion in position when
retightening the M16 nyloc nut.
1.5 MACHINE OPERATION

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1.5.3 MAST SET-UP INSTRUCTIONS
MAINTAIN SAFE MINIMUM APPROACH
DISTANCES FROM POWER LINES.
READ THE SAFETY PRECAUTIONS
BEFORE RAISING THE MAST, CHECK
THAT NO OBSTRUCTIONS ARE
LOCATED ABOVE THE MAST TO A
HEIGHT OF 10 METRES.
Fig 1.5.7
1. Ensure all four outrigger arms are
extended and the jack leg feet are in
firm contact with the ground. Adjust
height of each jack leg to level the
lighting tower using the bubble-level.
2. Open the control panel access door
Start the engine /generator and allow it
to complete its run-up sequence.
3. To raise mast to the required height,
press the enable button and at same
time, toggle the mast raise/lower
switch ‘up’.
4. To rotate a lighthead with electro-
mechanical drive, press the enable
button and toggle the rotate switch.
5. Finally, to adjust the lighthead tilt angle,
press the enable button and toggle the
tilt control switch.
TO AVOID CRUSHING INJURIES, KEEP
HANDS AND LIMBS WELL CLEAR OF
MOVING MAST AND LIGHTHEAD
CRUSHING HAZARDS.
Fig 1.5.8
1.5.4 TURNING LIGHTS ON
The lighting tower’s control module is
factory pre-set with two machine stop/start
modes.
1) Manual Start/Stop
2) Auto Start/Stop
A summary of each control mode follows.
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1.5 MACHINE OPERATION

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1.5.5 LT3 CONTROLLER
CONTROL PANEL
Fig 1.5.9
Control Panel Push Buttons
Stop/Reset
Stop lighting tower operation
Reset alarm when failure occurs
Lamp test in stop mode
(press for at least three seconds)
Manual Start Mode
Press this key to enter Manual Mode
Auto Mode
Press this key to enter auto start mode
select interface; use up/down arrow keys
to select mode and press “AUTO” to
confirm selection.
Mute
If alarm occurs, pressing the button can
remove alarm siren, and the indicator will
light up; press the button again to reset
the alarm and the indicator will turn off. If
the alarm re-triggers in mute status, the
controller will remove the mute status.
Strobe Light / Beacon (if fitted)
Switches the beacon light on or off.
(Only when the engine is running)
Start
Start lighting tower set in Manual Mode.
Light Off
When running in the normal manual mode,
press this button once to turn-off one light.
Light On
When running in the normal manual mode,
press this button once to turn-on one light.
Menu / Confirm
Press this key to enter menu interface. In
parameter setting interface press this key
to right shift cursor and confirm the setting.
Down/Config “- “
1) Screen Scroll
2) Down cursor and decrease value
of menu setting
Up/Config “+”
1) Screen Scroll
2) Up cursor and increase value of
menu setting.
1.5 MACHINE OPERATION

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1.5.6 LIGHTS & ENGINE CONTROL
Fig 1.5.10
1) Manual Start/Stop Mode -Summary
Manual Start/Stop is initiated by the
following pushbutton sequence.
Start
A) press then
wait for the engine start-up period
wait for the machine to warm-up
B) press to turn-on each light
Stop
C) press to shut-down genset
wait for the machine to complete
the shutdown sequence.
2) Auto Start/Stop Mode - Summary
A) press
for each screen shown in Fig 1 to Fig 3
press and to select
press or to confirm
B) 10 seconds before engine start-up
time, an audible alarm sounds
At pre-set start time, the engine cranks
C) wait for the generator to reach the
“on-load” requirements.
D) When the “stop delay” time is reached
all lights will turn off in sequence.
When all lights are off, the engine runs
through a cool-down cycle before
stopping.
1.5 MACHINE OPERATION

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Setting Controller Parameters
After the controller powers up,
Press , then select
1 Set Parameters, then
Press again to advanced parameter
pin-number confirmation interface.
Press the and to increase or
decrease values to enter the correct pin-
number password 0~9;
Press the to move right, entering the
password number for all 4 positions.
Press the key to save pin-number.
(Factory default password is 1234 and
users can modify it via PC connection.)
Press the key and key to scroll
screen; select parameter you want to
configure and Press the key (the
parameter will highlight with black),
Press the key or key to change
parameter value,
Press the key to confirm setting and
the set value will be saved into internal
FLASH
Date and Time Setting:
After controller powers up, Press ,
then select 3 Time Calibration,
Press again to the Date and Time
Setting interface. The first line is current
date and time, and the second line is the
time information of user’s modification.
Press the key or key to increase
or decrease the value.
Press the key to confirm setting and
the bit will right move automatically.
Number “5” in the parenthesis is the week
information. It is set by the microprocessor
based on current date, so the user does
not need to modify it.
Parameter Setting
01 Timer Start
Start Time Duration
18:50 08:30
Date and Time
Current Time:
13-01-04 (5) 08:27:55
13-01-04 (5) 08:27:23
1.5 MACHINE OPERATION

1001281353 JLG Industries (Australia) Pty Ltd Page 1-20
Oshkosh Corporation 28JUL22
JLG LT3
OshkoshCorporationClassification‐Restricted
1.5.7 LIGHTING TOWER PACK-UP
To pack-up the machine for storage or
transport, complete the set-up steps in
reverse order. Take special care when
lowering the mast to ensure the mast
section six V-cleat locates in the mast
section one V-plate.
Ensure the lighthead and the LED lights
are locked in the horizontal position when
stowed for transport or storage.
Fig 1.5.11 Lighthead Home Position
Before transporting, ensure that V-arm
attached to the top of mast section 6 seats
in the V-plate bolted to mast section 1
Fig 1.5.12
Ensure the four outrigger arms are fully
retracted and locked by spring latch bolts.
The levelling jack legs are inverted in
stowed position. Jack leg winding handles
are vertical.
Fig 1.5.13 LT3 Stowed.
1.5 MACHINE OPERATION
V-arm
V-plate