Manual
Mobile Light Tower
MLT 6/MLT 7
INTRODUCTION
The Mobile Light Tower is designed as a simple to use but powerful portable lighting system. It should only
be used as a device to provide light as designed and for no other purpose.
Correct care and use of your Mobile Light Tower will result in years of trouble free use. All users should
familiarise themselves with the contents of this manual.
SAFETY MEASURES & CHECKS
The following are recommended safety measures and checks that all users should read and understand
before setting up a Mobile Light Tower unit to ensure the safety of the user and of surrounding personnel.
BEFORE USE
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Inspect all cables and plugs to check for any
damage. All cables must be free of cuts and
damage. Never use cables in poor condition.
For Metal Halide products ensure the glass cover
is fully closed and secured before raising mast and
turning lights on.
Inspect the lifting eye for damage before lifting
the product using this device.
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BEFORE STARTING SETUP OF
MOBILE LIGHT TOWER
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Ensure product is not being set up in a potentially
explosive environment – the Mobile Light Tower
is not an ATEX approved product.
It is recommended that the user wears gloves
whilst operating or setting up the Mobile Light
Tower .
In slippery or uneven terrain it is recommended
that two people manoeuvre the product at all
times.
Ensure the area around the product and above
the product is clear of any possible obstructions
before starting to set the product up.
Do not operate near or under overhead power
lines.
Reasonable effort is required to set the product up
therefore more than one person may be required.
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SETTING UP THE PRODUCT
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The Mobile Light Tower must only be operated
in a vertical position.
Do not raise the mast until the Mobile Light Tower
is positioned level, all four support legs
are correctly deployed on a firm flat surface and
locked in position.
Never move the Mobile Light Tower with the
mast partly or fully raised.
Do not switch on light heads until mast is raised
Do not stare directly into the lights to prevent
damage to eyes.
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Check tyres are inflated to the correct pressure;
do not exceed the maximum pressure stated on
the tyres.
Check the axle pivot point and locking pin to
make sure it is fully engaged and locked.
Ensure that any damaged parts that could pose
a risk to the user or other personnel are replaced
before use.
Ensure the surface to set up on is a firm and
even flat surface.
Do not place the Mobile Light Tower on a smooth
low friction surface even if firm and level. e.g.
snow/Ice. The unit could be prone to sliding
sideways in these circumstances.
Ensure the product will be powered by a RCD
protected supply
The main product is rated to IP65 (apart from
the plug and coupler/see specific type/option
fitted for their rating).
The Mobile Light Tower is not designed to be
submersed under water.
Operating temperature – Min -20°C Max +40°C.
Do not manoeuvre the Mobile Light Tower
product for long distances in extreme
temperatures.
Arrange the angle of the light heads as far as
possible to ensure that the light heads are not
likely to dazzle people in the near vicinity.
Set the Mobile Light Tower up so light spill cannot
form a nuisance or danger to others, especially
those using machinery.
Where possible the Mobile Light Tower should be
set up away from personnel or moving vehicles.
Set the Mobile Light Tower up in such a way
it can’t obstruct walkways or areas that form
emergency exit routes.
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Check area where the product has been set up
on a regular basis to ensure stability has not been
compromised through changing conditions, e.g.
through wind or water logged ground.
Never lean a ladder or other equipment against
the Mobile Light Tower .
Do not use the Mobile Light Tower for any
purpose other than that for which it is designed.
The Mobile Light Tower is NOT a lifting device
for anything other than its designed purpose.
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AFTER USE
Leave mast erected for at least 10 minutes when light
heads are turned off to enable the light heads to cool
down.
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PACKING AWAY
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In slippery or uneven terrain it is recommended
that two people manoeuvre the product at all
times.
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Take extra care handling light heads for transport
in case housings are still hot.
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MAINTENANCE
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It is recommended that all Mobile Light Tower
products are electrical safety tested at least on
an annual basis.
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It is recommended that a regular inspection of
the complete product is carried out to look for
signs of wear and tear and identify possible
maintenance required. This should be done by
a competent person at least on an annual basis
depending on severity and types of use.
It is recommended that gloves are worn during
cleaning and maintenance to protect the user.
When removing the light heads (load) during
deep maintenance or the removal of parts ensure
the product is laid flat to prevent uncontrolled
movement of the mast sections in disassembly.
Any damaged parts that could pose a risk to the
user/personnel must be replaced.
All sliding and rotating mechanisms must be
kept clean and lubricated where applicable.
Never lubricate the winch brake.
The Mobile Light Tower must be taken out of
service if, during use, or repair and maintenance
serious damage is discovered.
The Mobile Light Tower can only be put back
into use after it has been properly repaired and
examined and signed off by authorised personnel.
Maintenance and repairs can be executed only
by authorised personnel.
If any person maintaining or repairing the device
is in any doubt they should contact El-Björn AB.
TECHNICAL SPECIFICATIONS
PRODUCT
CODE
MAST
HEIGHT
NUMBER
OF HEADS
TECHNOLOGY
WEIGHT
CLOSED
DIMENSIONS
OPEN
DIMENSIONS
MLT 6 MH4
6m
4
Metal Halide
168Kg
196,5 x 77 x 70cm
570 x 377 x 377cm
MLT 7 MH4
7m
4
Metal Halide
197Kg
196.5 x 77 x 75cm
377 x 377 x 684cm
MLT 6 LED4
6m
4
LED
184Kg
196.5 x 77 x 70cm
570 x 377 x 377cm
MLT 7 LED4
7m
4
LED
205Kg
196.5 x 77 x 75cm
377 x 377 x 710cm
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ELECTRICAL
Input 110/240V max 1600W
Metal Halide Heads
250W Metal Halide IP65 Integral Electronic Ballast
100-240V Input
6000K 19,200 Luminous Flux Output per lamp max 76,800 Lumens per Mobile Light Tower
LED Light heads
160W LED IP65 Integral Electronic Driver
100-240V Input
5500K 17,000 Lumen Flux Output per Lamp max 68,000 Lumens per Mobile Light Tower
Head Interconnection via individual IP65 connectors.
Mains input via 110v/240V plug/coupler link through as per customer requirements.
Down Lead
Coiled Polyurethane 1.5mm2 3 core cable to RCBO housing.
CORRECT USE
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The device is to be used only for its prescribed purpose. Any use other than that
mentioned is considered to be a case of misuse.
The user/operator and not the manufacturer shall be liable for any damage or injury resulting
from such cases of misuse.
The Mobile Light Tower is designed for hand operation. Any kind of motorising is prohibited.
The use of spares other than original parts from El-Björn AB will invalidate any warranty
To use the device you must also observe the safety regulations, the assembly and operating
instructions to be found in this manual.
All persons who use and service this device have to be acquainted with this manual and must be
informed about its potential hazards.
It is also imperative to observe the local accident prevention regulations.
The same applies for the general rules of occupational health and safety.
The manufacturer is not liable for indirect consequential damage and financial loss.
The manufacturer shall not be liable for any changes made to the device nor for any damage
resulting from such changes.
POSITIONING THE MOBILE LIGHT TOWER
The Mobile Light Tower can be used indoors or outdoors. Note Recommended Maximum Wind Speeds
Wherever there is any doubt over the wind speed/conditions the Mobile Light Tower should be lowered for safety.
Wind speed 4 x Head at 100% Height - 13 m/s
Wind speed 4 x Head at 66% Height - 17 m/s
Wind speed 4 x Head at 33% Height - 22 m/s
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Use additional stay wire kit for additional safety if required.
The Mobile Light Tower must only be operated in a vertical position.
Only operate on firm and even flat surfaces
If using the Mobile Light Tower for extended periods ensure that a daily check of the unit is made to prevent against
misuse or tampering whilst unattended and that the surface is still firm and level and stability is not compromised in
any way e.g. waterlogged ground.
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LIFTING / LOWERING PROCESS
RAISING THE MAST
1. Push mast to vertical position onto it’s metal base on firm ground, away from overhead obstacles such as trees or power lines.
Make sure the unit is turned off. Lift the cover of the master
switch and turn to marked off position.
Make sure that the base is level using the bubble level. The base is designed to take the weight of the unit during operation so it is
critical to ensure the ground will support the full weight of the unit
without giving way during the unit deployment.
Manoeuvre the unit so that the main base is fully in contact with the ground and the bubble level is reading true.
Site the unit so that all four of the stabilising legs can be located on firm ground when deployed.
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2. Pull out the four support legs from their clips.
Pull out pins B and locate securely in closest hole once legs are lowered to the floor.
Angle the load pads at the end of each leg to ensure they are in full contact with the ground.
3. 4. Rotate tie bars C by rotating anti-clockwise to lower to a level stable position. The legs must be in full
firm contact with the ground but ensure the weight of the mast is supported by the main square base.
It is not correct to lift the main base clear of the ground.
Adjust bars C to make mast vertical with all legs and main base supporting the load equally.
All four legs should have equal pressure. Ensure that the Bubble level is still true after legs have
been fully deployed.
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5. Pull out transport pin A, rotate and lock it back to allow release of mast sections, wind winch handle clockwise to raise the first few cm to clear the transport locking pin. Release catch once clear to original position, this will ensure the mast sections are automatically locked once the mast is wound down to
the final stowed position.
6. Continue to wind approx 5 turns to raise mast to chest height. Adjust lights to correct angle.
Vertical adjustment is by locking leaver, release anti clockwise and lock with clockwise rotation.
Horizontal adjustment is by friction mounting, no lock needed.
7. Continue to raise the mast to the desired height with the winch handle rotating clockwise. As you
raise the mast you will hear a clicking sound as the safety lock connects to each lock point.
Make sure the curly cable is free of obstruction as the mast is wound up.
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When the mast is at the desired height stop winding. Now wind the handle in the opposite direction
slowly until the mast safety lock E engages. The load should be shared between the wire winch rope
and the safely lock.
The mast is fully extended when the two ‘Max Height’ arrows align. Do not exceed this height.
8. It is now safe to turn the Mobile Light Tower on at the switch. Lift cover and switch to on position.
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LOWERING THE MAST
1. Make sure the Mobile Light Tower is stable and no adjustments have been made if left unattended.
2. Switch the main power to the light heads off by lifting the cover and setting the switch position to
off (as above). Leave the unit fully erected for 10 minutes after the power has been turned off so
the light heads can cool down.
3. Re-tension the lifting wire by winding winch handle clockwise slightly to take the mast load.
4. Pull and hold both the safety latches E from the safe parking point and lower the mast using winch
handle D anti clockwise. The safety latches E need to be pulled free during the descent to prevent it
locking into the mast. If the safety latch catches during decent you will need to take the load from
it before it will release by winding the winch handle clockwise a little.
5. Ensure that the curly cable is kept free of obstruction during the descent of the mast.
6. Lower the mast fully to the ground and ensure the transport catch A has engaged.
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7. Make sure the ground has remained firm and the unit will stand stable after the legs are packed away.
Now rotate tie bars C clockwise until locking pins B can be pulled free.
Ensure unit is stable then pull out pins B to raise legs. Locate legs into storage clips on mast.
The angle of the heads may need adjusting to allow the legs to be clipped home.
8. Make sure the transport wheel set is secured before pulling the unit onto wheels for transport.
Release the pin and set wheel set to the top position of the two holes. Make sure pin is pushed fully
home and locked before tipping Mobile Light Tower to transport mode.
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TRANSPORT POSITION
The Mobile Light Tower allows the wheel Kit to be adjusted to allow different transport and
storage positions. Adjustment between each position is via the transport pin.
Ensure the pin is fully and correctly located before allowing the weight of the unit to be placed on the wheels.
The pin needs to be fully pushed in so that the drop nose end can turn at 90degrees to the shaft to lock
in place.
To remove push the pin fully in and lift the nose to align with main pin shaft.
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The contents of this manual are subject to change without prior notice. We take no
responsibility for errors or admissions.
El-Björn AB
Tel: +46 (0)371-588 100 Fax: +46 (0)371-181 34
E-mail: info@elbjorn.se, www.elbjorn.com