Multiquip LT12D, LT12P User Manual 2
OPERATION MANUAL
NIGHTHAWK SERIES
MODELS LT12D, LT12P
DEDICATED LIGHT TOWER
(DEUTZ F3M1008F DIESEL ENGINE)
(LOMBARDINI LDW 1003 DIESEL ENGINE)
(PERKINS 103-10 DIESEL ENGINE)
Revision #12 (01/20/09)
To fi nd the latest revision of this
publication, visit our website at:
www.multiquip.com
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
PN 29543
PROPOSITION 65 WARNING
Diesel engine exhaust and some of
PAGE 2 — LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09)
REPORTING SAFETY DEFECTS
If you believe that your vehicle has a defect that could cause a crash or could cause
injury or death, you should immediately inform the National Highway Traffi c Safety
Administration (NHTSA) in addition to notifying Multiquip at 1-800-421-1244.
If NHTSA receives similar complaints, it may open an investigation, and if it fi nds
that a safety defect exists in a group of vehicles, it may order a recall and remedy
campaign. However, NHTSA cannot become involved in individual problems
between you, your dealer, or Multiquip.
To contact NHTSA, you may either call the Vehicle Safety Hotline toll-free at 1-888327-4236 (TTY: 1-800-424-9153), go to http://www.nhtsa.dot.gov; or write to:
Administrator
NHTSA
1200 New Jersey Avenue S.E.
Washington, DC 20590
You can also obtain information about motor vehicle safety from
http://www.safecar.gov.
LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09) — PAGE 3
LT12 Series Light Tower
Proposition 65 Warning ........................................... 2
Reporting Safety Defects ......................................... 3
Table Of Contents .................................................... 4
Safety Information .............................................. 5-12
Lamp Footcandle Plot ............................................ 13
Specifi cations ................................................... 14-15
Dimensions ............................................................ 16
General Information ............................................... 17
Components ..................................................... 18-19
Control Panel .................................................... 20-21
Inspection ......................................................... 22-25
Operation .......................................................... 26-30
Maintenance ..................................................... 31-35
Maintenance — Trailers .................................... 36-37
Troubleshooting ................................................ 38-43
Lt12 Wiring Diagram — S/N 902148 and Below .... 44
Lt12 Wiring Diagram — S/N 902148 and Below .... 45
Lt12 Wiring Diagram — S/N 902149 to 902625 .... 46
Lt12 Wiring Diagram — S/N 902149 to 902625 .... 47
Lt12 Wiring Diagram — S/N 902626 and Above ... 48
Lt12 Wiring Diagram — S/N 902626 and Above ... 49
Perkins Engine Wiring Diagram ............................. 50
Deutz Engine Wiring Diagram ............................... 51
Lt12 Control Panel/Ignition Wiring Diagram ........... 52
Trailer Guidelines .............................................. 53-67
TABLE OF CONTENTS
NOTICE
Specifi cations are subject to change without notice.
PAGE 4 — LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09)
SAFETY INFORMATION
Do not operate or service the equipment before reading the
entire manual. Safety precautions should be followed at all
times when operating this equipment. Failure to read and
understand the safety messages and operating instructions
could result in injury to yourself and others.
SAFETY MESSAGES
The four safety messages shown below will inform you
about potential hazards that could injure you or others. The
safety messages specifi cally address the level of exposure
to the operator and are preceded by one of four words:
DANGER, WARNING, CAUTION or NOTICE.
SAFETY SYMBOLS
DANGER
Indicates a hazardous situation which, if not avoided,
WILL result in DEATH or SERIOUS INJURY.
WARNING
Potential hazards associated with the operation of this
equipment will be referenced with hazard symbols which
may appear throughout this manual in conjunction with
safety messages.
Indicates a hazardous situation which, if not avoided,
COULD result in DEATH or SERIOUS INJURY.
CAUTION
Indicates a hazardous situation which, if not avoided,
COULD result in MINOR or MODERATE INJURY.
NOTICE
Addresses practices not related to personal injury.
LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09) — PAGE 5
SAFETY INFORMATION
GENERAL SAFETY
CAUTION
NEVER operate this equipment without proper protective
clothing, shatterproof glasses, respiratory protection,
hearing protection, steel-toed boots and other protective
devices required by the job or city and state regulations.
NEVER operate this equipment when not
feeling well due to fatigue, illness or when
under medication.
NEVER operate this equipment under the infl uence of
drugs or alcohol.
NOTICE
LIGHT TOWER SAFETY
DANGER
NEVER use light tower in rain, snow, or
areas of high humidity that could generate
electrical storms.
The engine of this equipment
requires an adequate free
fl ow of cooling air. NEVER
operate this equipment in
any enclosed or narrow area
where free fl ow of the air is
restricted. If the air fl ow is
restricted it will cause injury
to people and property and
serious damage to the equipment or engine.
NEVER operate the equipment in an
explosive atmosphere or near combustible
materials. An explosion or fi re could result
causing severe bodily harm or even
death.
This equipment should only be operated by trained and
qualifi ed personnel 18 years of age and older.
Whenever necessary, replace nameplate, operation and
safety decals when they become diffi cult read.
Manufacturer does not assume responsibility for any
accident due to equipment modifi cations. Unauthorized
equipment modifi cation will void all warranties.
NEVER use accessories or attachments that are not
recommended by Multiquip for this equipment. Damage
to the equipment and/or injury to user may result.
ALWAYS know the location of the nearest
fi re extinguisher.
ALWAYS know the location of the nearest
fi rst aid kit.
ALWAYS know the location of the nearest phone or
keep a phone on the job site. Also, know the phone
numbers of the nearest ambulance, doctor and fi re
department. This information will be invaluable in the
case of an emergency.
The engine fuel exhaust gases contain poisonous carbon
monoxide. This gas is colorless and odorless, and can
cause death if inhaled.
WARNING
NEVER disconnect any emergency or safety devices.
These devices are intended for operator safety.
Disconnection of these devices can cause severe injury,
bodily harm or even death. Disconnection of any of these
devices will void all warranties.
CAUTION
NEVER lubricate components or attempt service on a
running machine.
ALWAYS ensure light tower is on level ground before use
so that it cannot slide or shift around, endangering workers.
Always keep immediate area free of bystanders.
ALWAYS make sure trailer is leveled with all outriggers
extended before raising tower. Outriggers must remain
extended while tower is up.
ALWAYS keep area behind trailer clear of people while
raising and lowering mast.
PAGE 6 — LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09)
SAFETY INFORMATION
NEVER remove safety pin or pull mast locking pin while
tower is in a raised position!
CHECK the mast and winch cables for wear. If any
problem occurs when lower or raising the tower,
STOP immediately! Contact a trained technician for
assistance.
NEVER pivot or retract mast while unit is operating.
NEVER use the light tower mast as a crane. DO NOT
lift anything with the mast.
NEVER attach anything to the light tower mast.
ALWAYS lower the light tower when not in use, or if high
winds or electrical storms are expected.
NOTICE
ALWAYS keep the immediate area surrounding the light
tower clean, neat, and free of debris.
ALWAYS keep the machine in proper running condition.
Fix damage to machine and replace any broken parts
immediately.
ALWAYS store equipment properly when it is not being
used. Equipment should be stored in a clean, dry location
out of the reach of children and unauthorized personnel.
LAMP SAFETY
WARNING
NEVER attempt to replace lamp with the power on.
Always shut down the engine or turn off circuit breakers
when changing the lamp.
ALWAYS allow a suffi cient amount of time for the lamp to
cool before touching or changing. The possibility exists of
severe burns.
CAUTION
NEVER use force when installing the lamp. Excessive force
could cause the lamp to break, causing bodily harm.
NOTICE
NEVER leave any grease or oil residue on lamp surface
when replacing or removing lamp. This can create hot
spots, reducing the service life of the lamp.
ALWAYS make sure lamp surface is clean and dry.
ALWAYS replace with MQ recommended type lamp.
ALWAYS have a trained technician install and remove
a fl oodlight, or replace any damaged fi xture wiring.
To prevent the light tower from overturning, NEVER use
in winds that exceed 65 mph (105 kph).
LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09) — PAGE 7
SAFETY INFORMATION
ENGINE SAFETY
WARNING
DO NOT place hands or fingers inside engine
compartment when engine is running.
NEVER operate the engine with heat shields or
guards removed.
Keep fi ngers, hands hair and clothing away
from all moving parts to prevent injury.
DO NOT remove the radiator cap while the
engine is hot. High pressure boiling water will gush out
of the radiator and severely scald any persons in the
general area of the generator.
DO NOT remove the coolant drain plug
while the engine is hot. Hot coolant will
gush out of the coolant tank and severely
scald any persons in the general area of
the generator.
DO NOT remove the engine oil drain plug while the
engine is hot. Hot oil will gush out of the oil tank and
severely scald any persons in the general area of the
generator.
CAUTION
NEVER touch the hot exhaust manifold,
muffl er or cylinder. Allow these parts to cool
before servicing equipment.
NOTICE
NEVER run engine without an air fi lter or with a dirty air
fi lter. Severe engine damage may occur. Service air fi lter
frequently to prevent engine malfunction.
Wet stacking is a common problem with diesel engines
which are operated for extended periods with light or
no load applied. When a diesel engine operates without
suffi cient load (less than 40% of the rated output), it will
not operate at its optimum temperature. This will allow
unburned fuel to accumulate in the exhaust system,
which can foul the fuel injectors, engine valves and
exhaust system, including turbochargers, and reduce
the operating performance.
In order for a diesel engine to operate at peak effi ciency,
it must be able to provide fuel and air in the proper ratio
and at a high enough engine temperature for the engine
to completely burn all of the fuel.
Wet stacking does not usually cause any permanent
damage and can be alleviated if additional load is
applied to relieve the condition. It can reduce the system
performance and increase maintenance. Applying an
increasing load over a period of time until the excess
fuel is burned off and the system capacity is reached
usually can repair the condition. This can take several
hours to burn off the accumulated unburned fuel.
State Health Safety Codes and Public Resources
Codes specify that in certain locations, spark arresters
must be used on internal combustion engines that use
hydrocarbon fuels. A spark arrester is a device designed
to prevent accidental discharge of sparks or fl ames
from the engine exhaust. Spark arresters are qualifi ed
and rated by the United States Forest Service for this
purpose. In order to comply with local laws regarding
spark arresters, consult the engine distributor or the
local Health and Safety Administrator.
NEVER tamper with the factory settings
of the engine or engine governor. Damage
to the engine or equipment can result
if operating in speed ranges above the
maximum allowable.
PAGE 8 — LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09)
SAFETY INFORMATION
FUEL SAFETY
DANGER
DO NOT start the engine near spilled fuel or combustible
fl uids. Diesel fuel is extremely fl ammable and its vapors
can cause an explosion if ignited.
ALWAYS refuel in a well-ventilated area, away from
sparks and open fl ames.
ALWAYS use extreme caution when working with
fl ammable liquids.
DO NOT fi ll the fuel tank while the engine is running
or hot.
DO NOT overfi ll tank, since spilled fuel could ignite if it
comes into contact with hot engine parts or sparks from
the ignition system.
Store fuel in appropriate containers, in well-ventilated
areas and away from sparks and fl ames.
NEVER use fuel as a cleaning agent.
DO NOT smoke around or near the
equipment. Fire or explosion could result
from fuel vapors or if fuel is spilled on a
hot engine.
TOWING SAFETY
CAUTION
Check with your local county or state safety towing
regulations, in addition to meeting
Department of Transportation (DOT)
Safety Towing Regulations, before towing
your light tower.
In order to reduce the possibility of an accident while
transporting the light tower on public roads, ALWAYS
make sure the trailer that supports the light tower and
the towing vehicle are mechanically sound and in good
operating condition.
ALWAYS shutdown engine before transporting.
ALWAYS inspect the hitch and coupling for wear. NEVER
tow a trailer with defective hitches, couplings, chains, etc.
Check the tire air pressure on both towing vehicle and
trailer. Trailer tires should be infl ated to 50 psi cold.
Also check the tire tread wear on both vehicles.
ALWAYS make sure the trailer is equipped with a safety
chain.
ALWAYS properly attach trailer’s safety chains to towing
vehicle.
ALWAYS make sure the vehicle and trailer directional,
backup, brake and trailer lights are connected and
working properly.
DOT Requirements include the following:
• Connect and test electric brake operation.
• Secure portable power cables in cable tray with tie
wraps.
The maximum speed for highway towing is 55 MPH unless
posted otherwise. Recommended off-road towing is not to
exceed 15 MPH or less depending on type of terrain.
Avoid sudden stops and starts. This can cause skidding,
or jack-knifi ng. Smooth, gradual starts and stops will
improve towing.
Avoid sharp turns to prevent rolling.
Trailer should be adjusted to a level position at all times
when towing.
Raise and lock trailer wheel stand in up position when
towing.
Place chock blocks underneath wheel to prevent rolling
while parked.
Place support blocks underneath the trailer’s bumper
to prevent tipping while parked.
Use the trailer’s swivel jack to adjust the trailer height to
a level position while parked.
Make sure the hitch and coupling of the towing vehicle
are rated equal to, or greater than the trailer “gross
vehicle weight rating.”
LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09) — PAGE 9
SAFETY INFORMATION
TRANSPORTING SAFETY
CAUTION
Before lifting, make sure that light tower parts are not
damaged and screws are not loosened or lost.
ALWAYS make sure crane or lifting device has been
properly secured to lifting hook of the equipment.
NEVER lift the equipment while engine is running.
Make sure the tower is in the stowed position before
lifting.
STOWED
POSITION
Use adequate lifting cable (wire or rope) of suffi cient
strength.
Use one point suspension hook and lift straight upwards.
If lifting through pockets, make sure forks of forklift are
inserted in pockets as far as possible before lifting.
Never allow any person or animal to stand underneath the
equipment while lifting.
DO NOT lift equipment to unnecessary heights.
Loading and Tie-Down on Flatbed Truck
NOTICE
Before loading light tower to fl atbed truck, disconnect all
four fl oodlight connectors and tie-wrap the cables against
the T-bar to prevent damage to the cables and connectors.
CABLE
TIE
CABLE
CONNECTORS
DISCONNECTED
When loading onto fl atbed truck, make sure that front
jackstand of light tower is retracted and in the horizontal
position so that the foot does not make contact with the
deck fl oor.
FORKLIFT
POCKETS
LIFTING BALE
LIGHT TOWER
FRONT JACKSTAND
RETRACTED
TONGUE
SIDE
JACK
STAND (2)
REAR
JACK
STAND (2)
TRANSPORT
TIE-DOWN
POINT (4)
Make sure that the two side (left and right) and two rear
jackstands are in the vertical postion, slightly extended,
so that each foot makes contact with the deck fl oor.
Straps and chains should be routed through the transport
tie-down points located beneath each corner of the
cabinet to allow even application of forece to the front
and rear of the machine.
DO NOT secure the unit by running a strap or chain over
the tongue of the light tower. This may cause severe
damage to the unit.
PAGE 10 — LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09)
SAFETY INFORMATION
ELECTRICAL SAFETY
DANGER
The electrical voltage required to operate the generator
can cause severe injury or even death through physical
contact with live circuits. Turn generator and all circuit
breakers OFF before performing maintenance on the
generator.
NEVER insert any objects into the output
receptacles during operation. This is
extremely dangerous. The possibility exists
of electrical shock, electrocution or
death.
NEVER operate light tower
or handle any electrical
equipment while standing
in water, while barefoot,
while hands are wet or in the
rain. A dangerous electrical
shock could occur, causing
severe bodily harm or
even death.
ALWAYS make sure the
area above the light tower is
open and clear of overhead
power lines and other
obstructions. The tower
extends in excess of 30
feet (9 meters). Contact
with overhead power
lines or other obstructions
could result in equipment
damage, electrical shock,
electrocution and even
death.
Similar to boom equipment , light tower may become
energized with high voltage. DO NOT operate the light
tower within a radial distance of 17 feet from high voltage
power lines. If light tower becomes energized with high
voltage, contact with the equipment could result in
electrocution.
Backfeed to a utility system can
cause electrocution and/or property
damage. NEVER connect the
generator to a building’s electrical
system without a transfer switch or
other approved device. All installations
should be performed by a licensed electrician in
accordance with all applicable laws and electrical codes.
Failure to do so could result in electrical shock or burn,
causing serious injury or even death.
Power Cord/Cable Safety
DANGER
NEVER let power cords or cables lay in water.
NEVER use damaged or worn cables or cords when
connecting equipment to generator. Inspect for cuts in
the insulation.
NEVER grab or touch a live power
cord or cable with wet hands. The
possibility exists of electrical shock,
electrocution or death.
Make sure power cables are securely connected.
Incorrect connections may cause electrical shock and
damage to the light tower.
NOTICE
ALWAYS make certain that proper power or extension
cord has been selected for the job.
Grounding Safety
DANGER
The light tower is equipped with a ground terminal for
your protection. ALWAYS complete the grounding path
from the light tower to an extrnal grounding source.
ALWAYS make sure that electrical circuits are properly
grounded to a suitable earth ground (ground rod) per
the National Electrical Code (NEC) and local codes
before operating generator. Severe injury or death by
electrocution can result from operating an ungrounded
generator.
NEVER use gas piping as an electrical ground.
LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09) — PAGE 11
SAFETY INFORMATION
BATTERY SAFETY
DANGER
DO NOT drop the battery. There is a possibility that the
battery will explode.
DO NOT expose the battery to open fl ames,
sparks, cigarettes, etc. The battery contains
combustible gases and liquids. If these
gases and liquids come into contact with a
fl ame or spark, an explosion could occur.
WARNING
ALWAYS wear safety glasses when
handling the battery to avoid eye irritation.
The battery contains acids that can cause
injury to the eyes and skin.
Use well-insulated gloves when picking up the battery.
ALWAYS keep the battery charged. If the battery is not
charged, combustible gas will build up.
ENVIRONMENTAL SAFETY
NOTICE
Dispose of hazardous waste properly. Examples of
potentially hazardous waste are used motor oil, fuel
and fuel fi lters.
DO NOT use food or plastic containers to dispose of
hazardous waste.
DO NOT pour waste, oil or fuel directly onto the ground,
down a drain or into any water source.
ALWAYS recharge the battery in a well-ventilated
environment to avoid the risk of a dangerous concentration
of combustible gasses.
If the battery liquid (dilute sulfuric acid) comes into
contact with clothing or skin, rinse skin or clothing
immediately with plenty of water.
If the battery liquid (dilute sulfuric acid) comes into
contact with eyes, rinse eyes immediately with plenty
of water and contact the nearest doctor or hospital to
seek medical attention.
CAUTION
ALWAYS disconnect the NEGATIVE battery terminal
before performing service on the generator.
ALWAYS keep battery cables in good working condition.
Repair or replace all worn cables.
PAGE 12 — LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09)
LAMP FOOTCANDLE PLOT
Lamp Footcandle PlotFigure 1.
LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09) — PAGE 13
SPECIFICATIONS
LT12 Series Specifi cationsTable 1.
Light Tower Model LT12D LT12P
Deutz F3M1008F/
Engine Model
Weight (Dry) 1,550 lbs. (700 kg.)
Support Points 5
Wind Stability with Genset. 65 mph (80.46 kph)
Lamps 4 1,000-Watt Metal Halide
Lumens 440,000
Light Coverage 5 to 7 acres
Light Termination 4 x 3-pin QD plug
Generator Specifi cations
GFCI Receptacle Output 120 VAC @ 15 A (US only)
Twist-Lock Receptacle Output 240 VAC @ 25 A (US only)
GFCI Circuit Breaker (Amps) 15 A
Twist-Lock Circuit Breaker (Amps) 25 A
Lombardini LDW 1003
Diesel Engine
Perkins 103-10
Diesel Engine
Continuous Output (Watts) 6,000 W
Noise Level @ 23 ft. (7 m) 73 dB
Trailer Specifi cations
Jackstand Capacity 2,000 lbs. (907 kg.)
Hitch Type 2 in. Ball (Optional Pintle Kit available)
Tire Size 13 in. (330 mm.)
Tire Rim Size 13 x 4.5 in. (330 x 114 mm)
Axle Capacity 2,000 lbs. (907 kg.)
Hub Type 5-Lug
Suspension Type 3-Leaf
Electrical Tail-light Connector 4-Wire
Winch Capacity 1,500 lbs. (680 kg.)
Winch Rope Wire 3/16 in.
PAGE 14 — LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09)
SPECIFICATIONS
Engine Specifi cationsTable 2.
Engine Type Aspirated 4-stroke, 3-cylinder, 1 liter Diesel Engine
Bore X Stroke 2.95 in. X 2.83 in. (75 mm x 72 mm)
Displacement 58.21 cu. in. (954 cc)
Max Output Standby 12 H.P. at 1,800 R.P.M.
Max Output Prime 10.5 H.P. at 1,800 R.P.M.
Fuel Tank Capacity Approx. 30 U.S. Gallons (113 Liters)
Run Time With 4 Lights 64 Hours
Perkins 103-10
Diesel Engine
Standard Idle Speed 1,800 R.P.M.
Fuel Type N0. 2 Diesel Fuel
Lube Oil Capacity 4 U.S. Pints (3.78 Liters)
Cooling System Water-cooled
Coolant Capacity 5 U.S. Pints (4.73 Liters)
Starting Method Electric Start
Battery Type Group 24
Total Weight (Dry) 280 lbs. (127 Kg.)
Total Weight (Wet) 287 lbs. (130 Kg.)
Engine Type 3-cylinder, Diesel Engine
Displacement 62.73 cu. in. (1028 cc)
Max Output Standby 12 H.P. at 1,800 R.P.M.
Fuel Tank Capacity Approx. 30 U.S. Gallons (113 Liters)
Run Time With 4 Lights 64 Hours
Lombardini LDW 1003
Diesel Engine or Deutz
F3M1008F
LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09) — PAGE 15
Standard Idle Speed 1,800 R.P.M.
Fuel Type N0. 2 Diesel Fuel
Oil Sump Capacity 2.64 U.S. Quarts (2.5 Liters)
Cooling System Liquid-cooled
Coolant Capacity 5.18 U.S. Quarts (4.9 Liters)
Starting Method Electric Start
Battery Type Group 24
Total Weight (Dry) 187.3 lbs. (85 Kg.)
DIMENSIONS
DEPLOYED
POSITION
C
STOWED
POSITION
D
E
B
A
REAR
RIGHT SIDE
DimensionsFigure 2.
DimensionsTable 3.
Reference Letter Description Dimension
A Length (Mast Stowed Position) 170 in. (431 cm.)
B Length (Mast Deployed Position) 101 in. (256 cm.)
C Max. Height (Mast Deployed Position) 31.5 ft. (9.6 m)
F
G
D Height (Mast Stowed Position) 74 in. (187 cm.)
E Ground Clearance (From Axle) 8 in. (20 cm.)
F Width (Tow Ready) 51 in. (129 cm.)
G Width (Outriggers Deployed) 109 in. (276 cm.)
PAGE 16 — LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09)
GENERAL INFORMATION
The Multiquip LT12 Series Light Tower is a dedicated
general purpose light tower engineered to provide
dependable lighting for a wide range of applications. This
includes lighting for construction sites, industrial locations,
special events, and emergency conditions.
METAL HALIDE LAMPS
The lighting system of the LT12 Series Light Tower is
comprised of 4 metal halide, 1000-watt lamps. These lamps
provide maximum illumination with typical lighting coverage
of 5 to 7 acres. The lamps are controlled by individual circuit
breakers for versatility.
ENGINE
The LT12 Light Tower is powered by a diesel engine that
is equipped with automatic shutdowns for low oil pressure,
high coolant temperature, and alternator charge failure.
STABILITY
The light tower can be raised vertically in excess of 31.5
feet (9.6 meters) by means of a manual winch. The tower
tensioning system is designed to provide the necessary
tension to safely control the pivot of the tower. The light
tower has a wind stability of up to 65 mph with outriggers
and jackstands fully deployed.
PANEL LIGHT
A panel light automatically illuminates the control panel and
all functions when the engine access door is opened. This
feature is convenient for night deployment.
CONVENIENCE RECEPTACLES
As an added feature, the LT12 is equipped with two
externally mounted auxiliary output receptacles that are
accessible without opening the side panels. The uppermost
receptacle (twist-lock) can provide 240 VAC at 25 amps. The
bottom receptacle is a GFCI receptacle which can supply
120 VAC at 15 amps. These receptacles can be used for
light power tools or other similar applications.
FUEL TANK
The 30-gallon fuel tank provides up to 64 hours of run time
while running at 3/4 load.
TRAILER DESIGN
The trailer design of the LT12 light tower withstands the
rigors of the jobsite in addition to providing smooth highway
towing.
LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09) — PAGE 17
COMPONENTS
15
14
13
16
18
17
2
1
4
5
7
9
3
6
8
10
12
18
11
Major Components (Control Panel Side)Figure 3.
Figures 3 and 4 show the location of the controls and
components for the LT12 series light tower. The function
of each control is described below.
Mast Rotation Locking Knob 1. — Unscrew this knob
to release mast for rotation. Tighten this knob to lock
mast after it is set to the desired position.
Mast Extension Winch 2. — Use this winch to extend
the mast to the desired height. Maximum height is
approximately 31.5 feet (9.6 meters).
Mast Rotation Handles 3. — Grip these handles to rotate
mast to desired position.
Lifting Bale 4. — Light tower can be lifted using this lifting
bale. The lifting bale is balanced for a fully confi gured
light tower. Removal of any components will unbalance
the lifting bale.
Forklift Pockets 5. — Light tower can be lifted using
these forklift pockets. Insert the forks of the forklift as
far possible into the pockets.
Mast Cradle Support 6. — When towing of the light
tower is required, place the tower mast into the cradle
support. Make sure cradle lock/release pin has been
inserted and mast is locked.
T-Bar 7. — Allows the lamps to be mounted vertically or
horizontally.
Lamps 8. — Four 1000-watt metal-halide bulbs with
a 110,000 lumens capacity each. Light coverage is
typically between 5 to 7 acres.
Cradle Lock/Release Pin 9. — Locks mast in cradle
support and releases mast when removed.
Rear Jackstands 10. — There are two jackstands located
at the rear of the trailer. Use these jackstands to level
and support the light tower.
Chock Blocks 11. — Place these blocks (not included
as part of the light tower package) under each trailer
wheel to prevent rolling.
Outrigger Jacks 12. — Use these 2 outrigger jacks to
level and support the light tower. For more stability, the
outriggers can be deployed.
Tongue Jackstand 13. — Use this jackstand to support
the tongue when attaching the light tower to a towing
vehicle.
PAGE 18 — LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09)
COMPONENTS
19
20
21
22
Safety Chain 14. — Always attach safety chain to the
towing vehicle. Never tow the light tower with the safety
chain unattached.
Ball Hitch Coupler 15. — Attach this coupler to the
towing vehicle. Use only the specifi ed ball diameter
as indicated on your coupler. Use of any other ball
diameter will create an extremely dangerous condition
which can result in separation of the coupler and ball
or ball failure.
Vertical Mast Winch 16. — Use this winch to raise the
mast to the vertical position.
REAR
VIEW
Major Components (Front/Rear)Figure 4.
24
23
25
FRONT
VIEW
Brake Lights 20. — Before towing the light tower, make
sure that these lights are operational and are working
correctly. Never tow the light tower if these lights are
inoperative.
Engine Exhaust Pipe 21. — Directs engine exhaust to
the rear of the light tower. NEVER block this exhaust
pipe with obstructions. ALWAYS place the generator
in an area free of obstructions.
Tires 22. — This light tower uses a ST175-13C size tire.
Replace with only recommended tire size. Never tow
light tower with bad or worn tires.
Mast Lock/Release Pin 17. — Pull this pin to start placing
the tower mast in the vertical position. When tower
mast has reached full vertical position, insert pin to
keep mast from falling.
Tie-Down Points 18. — Used to tie down light tower with
strap or chains to allow even application of force to the
front and rear of the equipment during transport.
License Light 19. — This light illuminates the license plate.
Whenever towing of the light tower is required, make
sure this light is operational.
LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09) — PAGE 19
Documentation Box 23. — Contains information
regarding the light tower.
240 VAC Twist-Lock Receptacle 24. — This twist-lock
receptacle provides 240 VAC, 25 amps.
120 VAC GFCI Receptacle 25. — This GFCI receptacle
provides 120 VAC, 15 amps.
CONTROL PANEL
HOURS
1/10
HOURS
1/10
HOURS
1/10
120 VAC/15A
GFCI
BREAKER
5
1
SenDEC
3
HOURS
0.0
1/10
4
240 VAC/30A
MAIN
BREAKER
2
1
SenDEC
3
HOURS
0.0
1/10
4
240 VAC/30A
MAIN
BREAKER
2
6
8
**
WATERTEMP
PRE-HEAT
INDICATOR
F
F
O
EMERGENCY SHUT DOWNS
FlashingLED Indicates
Causeof Shut Down
WhenFlashing
IndicatesLow Battery Charge
O
N
S
T
A
R
T
12
7
9
8
13
OIL PRESSURE AIR FILTER
9
WhenLight Goes Out
IndicateStart
10
LIGHT CONTROL/BREAKER
ok
A
LOMBARDINI
11
PERKINS ENGINE
LOMBARDINI/DEUTZ ENGINE
120 VAC/15A
GFCI
BREAKER
5
6
7
10
11
120 VAC/15A
GFCI
BREAKER
5
1
2
240 VAC/30A
MAIN
BREAKER
4
120 VAC/15A
GFCI
BREAKER
5
1
SenDEC
3
HOURS
0.0
1/10
4
240 VAC/30A
MAIN
BREAKER
2
6
LIGHT CONTROL/BREAKER
8
12
6
LIGHT CONTROL/BREAKER
8
10
12
9
LOMBARDINI
10
13
9
7
LOMBARDINI
13
3
7
LOMBARDINI/DEUTZ ENGINE
11
LOMBARDINI ENGINE
11
= NOT USED
Controls and IndicatorsFigure 5.
PAGE 20 — LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09)
CONTROL PANEL
Figure 5 shows the location of the controls and indicators on
the control panel for the different engines used with the LT12
light tower. Service the equipment as needed depending
on the alarm indicated. Below is a brief explanation of each
control or indicator.
Internal Cabinet Light Switch 1. — This switch controls
the internal cabinet light for the light tower control
panel. When the cabinet door is raised, the light will
automatically come on. When the cabinet door closes,
the switch is depressed and the light turns off.
Internal Cabinet Light 2. — Provides illumination for
the LT12 control panel during nighttime operation.
The light is automatically activated when the cabinet
door is raised.
Hour Meter 3. — This digital hour meter indicates the
number of hours machine has been in use.
Main Circuit Breaker 4. — A double-pole 25 amp, ON/
OFF circuit breaker which protects the 240 VAC twistlock receptacle from overload. In addition it allows
voltage to be supplied to the GFCI receptacle and 15
amp breakers.
PreHeat Indicator 10. — Lights when the
ignition key is turned to the ON position
indicating that the glow plugs are warming
up. When the light goes off, the engine is
ready for starting. If the light is fl ashing, a
low battery charge is detected (Perkins).
Ignition Key Switch 11. — Insert key into
ignition switch and turn clockwise to the ON
position to warm the glow plugs. When preheat indicator light goes OFF, turn the key to
the START position. Release key when
engine starts.
Normal Operation Indicator 12. — This
indicator (green lamp) lights when the engine
is functioning normally.
Alternator Alarm Indicator 13. — This indicator
lights when the engine has shut down
because the electrical charging system is
not working properly.
OK
GFCI Receptacle Circuit Breaker 5. — A single-pole, 15
amp, ON/OFF circuit breaker which protects the GFCI
receptacle from overload.
Lamp Circuit Breakers 6. — A single-pole, 15 amp, ON/
OFF circuit breaker for each of the four lamps.
Air Filter Alarm Indicator 7. — This indicator
flashes (Perkins) or lights (Lombardini/
Deutz) when a blockage or problem with the
air fi lter is detected.
Water Temperature Alarm Indicator 8. — This indicator
flashes (Perkins) or lights (Lombardini/
Deutz) when the water temperature becomes
too hot for normal engine operation. On
Lombardini/Deutz engines, the unit will shut
down and the indicator light will stay on.
Oil Pressure Alarm Indicator 9. — This alarm light
flashes (Perkins) or lights (Lombardini/
Deutz) when the oil pressure has fallen
too low for normal engine operation. On
Lombardini/Deutz engines, the unit will shut
down and the indicator light will stay on
LT12 SERIES LIGHT TOWER • OPERATION MANUAL — REV. #12 (01/20/09) — PAGE 21
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