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eDRAULIC - General

What is eDRAULIC actually?
eDRAULIC is a technology developed by LUKAS for rescue equipment, based on the principle of electro-hydraulics, where electrical energy is converted into hydraulic force. The high-performance LUKAS eDRAULIC makes it possible for you, at last, to operate high-performance cutters, spreaders and rescue cylinders using electrical power – with full hydraulic force! Power units, hoses and hose reels are thus no longer needed. 
How do eDRAULIC tools have just as much, or even more, force as hose-connected equipment?
eDRAULIC tools also operate at an internal pressure of 700 bar and thus have the same force as the corresponding hose-connected tools.
The new eDRAULIC cutter S 700 E has, as a result of many years of research, considerably more cutting force than our previous hose-connected top cutter, the S510. 
How does eDRAULIC make my rescue deployment faster?
eDRAULIC tools speed up your deployment markedly because you are ready for action immediately. Just switch on and away you go. eDRAULIC allows you to already work on the vehicle where previously you would still be making the power unit ready for operation, unrolling the hoses and connecting them. 
How much space will be made available on my vehicle if I decide to use eDRAULIC tools?
eDRAULIC means that each rescue tool has its own built-in drive. You will therefore save the space taken up by a conventional hydraulic power unit, the hoses and hose reels. This is space you can certainly put to good use for other lifesaving tools. 
How much weight can I save on my vehicle by using the eDRAULIC rescue equipment?
An eDRAULIC rescue set, consisting of cutter, spreader and two rescue rams weighs almost half of a conventional set. That is a difference of up to 70 kg. Thanks to eDRAULIC, you can thus carry additional lifesaving tools, which previously would have to be left behind in the depot. 
Aren't eDRAULIC tools considerably more expensive than normal rescue tools?
Always compare the prices of complete rescue sets. When you buy an eDRAULIC tool, you get a tool with the drive already integrated. Conventional tools, on the other hand, require additional hydraulic power packs, hoses and hose reels, which need to be added into your calculation. You will also save money in use. No hose replacement, no petrol for the power unit, no spark plug replacement, etc... Instead you can simply enjoy the uncomplicated freedom provided by eDRAULIC during rescue operations! 
What advantages are provided by eDRAULIC during nighttime deployment?
Powerful LEDs on the eDRAULIC casing provide direct illumination of the working area. Even in both directions on the rescue cylinder. The power-saving LEDs are powered directly by the main power supply. The power supply unit and batteries can be replaced easily and rapidly thanks to the illuminated battery compartment.  

eDRAULIC - Energy supply

Why does LUKAS offer both a power supply unit as well as batteries for eDRAULIC tools?
The power supply unit permits unlimited continuous operation from any 115V or 230V outlet. You therefore don't need to worry that the petrol will run out unlike in a conventional hydraulic power pack, or that the batteries will be flat after an unexpectedly long period of use. 
Which prerequisites do I need on my vehicle to be able to use eDRAULIC tools?
The power supply unit is designed so that any normal 115V or 230V outlet can be used for operating the eDRAULIC tools. Energy can be drawn directly from your on-board power generator using the high-quality cable drums on the deployment vehicles. 
How long can I work with a single battery charge?
The powerful lithium ion battery provides a working time of approx. 60 minutes under normal deployment conditions - even with heavy-duty rescue tools. In general, this is completely adequate to release persons from at least one vehicle. 
How many batteries do you recommend?
For maximum mobility we recommend carrying two batteries for each rescue tool. This will give you a deployment time of around 120 minutes. If you have more than one eDRAULIC tool in use, you can take the battery out of a rescue tool no longer required and insert it into the tool being used at the time. For unlimited use, we recommend either the power supply unit that we provide, or an adequate number of batteries. 
Can the batteries be switched from one eDRAULIC tool to the other?
All eDRAULIC tools use the same power supply units and batteries. This means that they can be swapped over during deployment. 
Does the eDRAULIC battery need to be discharged fully before charging to prevent the Memory Effect?
No. In contrast with earlier battery technology, the lithium ion batteries in the eDRAULIC range can be partially charged at any time. This will reduce neither the performance nor the service life of the battery.  
What is the service life of a battery?
The high-quality lithium ion batteries in the eDRAULIC range have a service life of about 500 charging cycles. Part-charging only counts as a partial cycle. This means that the service life is considerably greater than with previous battery technologies. 
What do I need to watch when charging the eDRAULIC batteries?
Nothing. The charger of the eDRAULIC range detects the type of battery that you have inserted. After the charging process, the battery can remain in the charger. 
Are eDRAULIC batteries always ready for use?
Once the eDRAULIC batteries have been charged they remain ready for use for a period of many months, even at temperatures down to -20 °C. Lithium ion batteries have a very low self-discharge rate of 8% in the first month, and then just 2% for each following month. The Sleep Mode that was evident in previous generations of Li-ion battery is not present in the eDRAULIC batteries.  
How long does it take to charge the battery?
Owing to the high energy density, it takes approx. 150 minutes to fully charge the batteries.  
Can eDRAULIC batteries and power supply units be used in the LKE 55 combi-tool?
No. eDRAULIC batteries cannot be used in the LKE 55 for technical reasons. On the other hand, the eDRAULIC power supply unit can be used on the LKE 55. 
Can the batteries from the LKE 55 also be used in the eDRAULIC tools?
Yes. However, in order to be able to use the full performance of the eDRAULIC rescue equipment, we recommend exclusive use of the high performance Lithium-ion batteries from the eDRAULIC range.  
What do I need to do to dispose of the batteries?
No longer required, worn-out or damaged batteries must not be disposed of in the general household waste, but must be disposed of properly at battery collection locations (e.g. local council). You are welcome to send your batteries to us if you wish, and we will take care of proper disposal for you (LUKAS Hydraulik GmbH, Weinstrasse 39, 91058 Erlangen, Germany). 


What happens if the mono-coupling is opened while the equipment is running?
The mono-coupling permits fast and easy coupling while the equipment is in operation. For this reason it does not have a mechanical interlock.
If the mono-coupling is opened while the equipment is running, it will immediately seal itself. No oil can leak out and the load maintenance function causes the attached rescue equipment to remain stationary at the point at which it was operating. To continue working with the rescue equipment, simply reconnect the two halves of the coupling. 
Can you change equipment while the motor pump is running?
Yes, that is possible. The mono-coupling can be disconnected and reconnected at any time. 
Why are LUKAS hoses coloured blue and grey?
The grey hose is the pressure hose and the blue hose is the return pipe. You can usually distinguish the various pieces of equipment from the different colours of their anti-kink protection:
Spreader = grey
Cutter or Combi-tool = blue
Rescue ram = black. 
Can a spreader under load be decoupled and recoupled?
Yes. Built-in safety valves guarantee that the load is held even when the rescue equipment is disconnected from the coupling. The same applies to combi tools and rescue rams. When the coupling is connected again, the equipment carries on working without even a twitch. 


When should the hydraulic oil be changed?
There is no general rule for this, but the oil should always be replaced if it becomes contaminated. The German accident prevention regulation GuV9102 stipulates that hydraulic equipment should be inspected every three years. We recommend that you change the oil latest with this inspection.  
When do hoses need to be replaced?
Hoses must be replaced immediately if they are damaged in any way. The German accident prevention regulation GuV9102 stipulates that hoses should be replaced after ten years latest, regardless of their condition. 
Should hydraulic hoses be cleaned after each use?
During rescue operations the hoses come into contact with numerous substances, such as battery acid, petrol, foam compounds, splinters of glass, brake fluid, etc., so it is important to clean and inspect them after each use. 
Can I operate LUKAS equipment with other manufacturers' hoses?
No. Our product liability and your guarantee apply only so long as you use genuine LUKAS spare parts. 
What torque is used to tighten the central bolt on the rescue cutters?
Different cutter series require different torque values. Please refer to your operating instructions for the correct figure. 
Which type of hydraulic fluid do you recommend?
LUKAS recommends a mineral oil compliant with DIN ISO 6743-4. 
Is there anything special in the maintenance of eDRAULIC tools?
eDRAULIC tools are particularly low-maintenance because of the closed electrohydraulic system, in combination with high quality hydraulic oil. Details of the maintenance can be located in the particular operating manual. 
Can I change the cutter blades myself?
Yes. On all LUKAS cutters you can change the blades yourself quite simply using normal tools. This means that you avoid freight costs and down-times. You can, of course have the blades replaced conveniently by your LUKAS dealer. 


Can LUKAS gasline power units be operated with E10 fuel?
The power units of the series P650, P640, P610 and P660 can be operated with E10 fuel.
The approval for series P620 power units is specified in the according engine manual. 
Can rescue rams be used for pulling?
We do still recommend our spreaders for pulling operations but if you wish, LUKAS will quote you for rescue rams that can be used for this purpose. 
Is it necessary for motor pumps to always stand on a level surface during operation?
LUKAS's motor pumps comply with the EN standard and can therefore operate on sloping ground at angles up to at least 30°. 
What do I have to do to attach a chain kit to the spreader?
Nothing at all! You just insert the chain set into the multifunction tip. There is no need to change the tip. 
Can this rescue equipment also be operated by lefthanders?
LUKAS's patented star grip valve means that both left and right-handers can safely operate our rescue equipment. The star grip ensures ergonomic and non-fatiguing operation in any position. 


Why are there no theoretical maximum cutting forces stated for the S 700 and S 700 E cutters?
LUKAS does not take part in the competition for ever higher theoretical maximum forces. The 700 cutters impress in practice with a perceptibly higher level of cutting performance compared with our previous top cutter (S510). More force at the right point, namely in the working area, instead of theoretical values at the rear-most point of the cutter blade, where only paper-thin material could be cut and where such high forces will never be needed. 
What is the operating pressure to which the rated power levels refer?
LUKAS equipment uses different operating pressures depending on the year of manufacture. You will find the appropriate value on the type plate and in the operating instructions of the relevant tool. The specified power rating always refers to the specified maximum operating pressure for the tool. 
How safe are LUKAS hydraulic hoses in operation?
The EN standard stipulates that hoses must possess a safety factor of 4:1, which means that the bursting pressure must be four times as high as the operating pressure. LUKAS hoses possess a safety factor better than 4:1.
To protect your hoses from environmental influences LUKAS also offers a retrofittable hose protection kit.  
What is the maximum altitude at which the rescue equipment can be used?
Our rescue equipment operates independently of the altitude. Restrictions apply only if you use motor pumps powered by gasoline engines, and even these present no problems at altitudes up to 1600m. 
Can I use any motor pump to power all types of rescue equipment?
The usable oil capacity of the power unit needs to match that of the attached equipment.
Some earlier types of motor pump were never designed to handle the larger volumes of hydraulic fluid required by modern rescue equipment. 
When I purchase a cutter do I have to decide on one particular type of blade?
No. As a general rule you can attach any of the blades designed for the same class of cutter. 
What load can the LSS support system support?
LUKAS supports can be loaded up to 110kg/cm². 
Can your rescue tools be used under water?
Yes. We know of LUKAS rescue tools being used at a depth of 40m.
Electrically driven tools must not be used under water. 
Why are there different blade geometries?
The blade geometry has a decisive effect on the equipment's cutting force and each type demonstrates its particular strengths in practical operation.
Curved blades enclose the material being cut and draw it towards the central bolt to the point at which the maximum cutting force is applied. This has the effect that the blades are always positioned at 90° to the material.
Straight blades offer an extremely wide opening and a deeper cut. This type of blade is particularly useful for cutting flat material, metal sections and rescue openings. 
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