Related Manuals for Hurst Jaws Of Life EDraulic S 788 EWXT
Summary of Contents for Hurst Jaws Of Life EDraulic S 788 EWXT
- Page 1 Instruction manual for rescue equipment eDRAULIC cutters 272288085 EN Edition 10.2019 replaces 07.2019 (Original instruction manual)
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Page 2: Table Of Contents
Content Page 1. Danger classifications 2. Product safety 3. Intended use 4. Functional description 4.1 Description 4.2 Structure of rescue devices 4.3 Hydraulic circuit diagram 4.4 Operating movement controls 5. Operation 5.1 Battery for eDRAULIC device 5.2 Operating the star grip 6. Cutting 6.1 Safety notes 6.2 Cutting 7. Dismantling the equipment / deactivation following operation 8. Maintenance and service... - Page 3 Content Page 10. Troubleshooting 11. Technical data 11.1 eDRAULIC cutter 11.2 Noise emission (based on standard EN ISO 3744) 11.3 Operating and storage temperature ranges 11.4 Oscillation / vibration 11.5 Torques for central bolts 11.6 Cutting performance 12. Accessories 12.1 Batteries 12.2 Battery charger 13. Instructions regarding disposal 14. Notes...
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Page 4: Danger Classifications
1. Danger classifications We differentiate between various different categories of safety instructions. The table shown below provides an overview of the assignment of symbols (pictograms) and signal words to the specific danger and the possible consequences. Damage / Pictogram Keyword Definition Consequences injury to Death or severe DANGER! Immediate danger injury Potentially Potential death or WARNING! dangerous serious injury situation Less dangerous Minor or slight CAUTION! situation injury Damage to the equipment, Risk of damage damage to the ATTENTION! to property/ environment, environment damage to surroundings Handling tips and No injury/damage other important/ to persons/... -
Page 5: Product Safety
2. Product safety HURST products are developed and manufactured to ensure the best performance and quality when used as intended. The safety of the operator is the most important consideration in product design. Furthermore, the operating instructions are intended to help you use HURST products safely. The generally applicable legal and other binding regulations pertaining to the prevention of accidents and protection of the environment apply and are to be complied with in addition to the operating instructions. The equipment may only be operated by persons with appropriate training in the safety aspects of such equipment, otherwise, there is a risk of injury. We would like to point out to all users that they should carefully read the operating instructions and the instructions they contain before they use the equipment and carefully follow them. We further recommend that you have a qualified trainer show you how to use the product. WARNING / CAUTION! The operating instructions for accessories must also be taken into account! Even if you have already received instructions on how to use the equipment, you should still read through the following safety instructions again. - Page 6 Immediately report any All bolted connections must changes that occur (including be checked for leaks and changes in operating externally visible damage, behavior) to the appropriate which must be repaired persons/departments! If immediately! Escaping necessary, the equipment is hydraulic fluid can cause to be shut down immediately injuries and fires. and secured! In the event of malfunction, Do not carry out any changes immediately deactivate the (additions or conversions) device and secure it. Repair to the equipment without the fault immediately. obtaining the prior approval of HURST. Observe all safety and danger All safety and danger information on the device and instructions on the device in the operating instructions. must always be complete and in a legible condition. Any mode of operation which Repairs to the equipment compromises the safety and/ may only be carried out by or stability of the device is a trained service technician forbidden! with specific knowledge of the device. Safety devices may never be Only genuine HURST disabled!
- Page 7 Please ensure that you do not Please ensure that the become entangled in cables battery contacts are not short- and trip when working with or circuited. transporting the device. The build-up of static charges Only touch broken-off or and therefore possible cut-off parts while wearing sparking must be avoided protective gloves, as the torn / when handling the device. cut edges can be very sharp. The eDRAULIC devices are not suitable for underwater use in saltwater or seawater. The equipment is filled with When working with or storing hydraulic fluid. This hydraulic the equipment, ensure that fluid can be detrimental to the function and the safety health if it is swallowed or of the equipment are not its vapor is inhaled. Direct impaired by the effects of contact with the skin must severe external temperatures be avoided for the same and that the equipment is not reason. Also, when handling damaged in any way. Please hydraulic fluid, note that it can note that the equipment can negatively affect biological also heat up over a long systems. period of use. Make sure that there is Before transporting the adequate lighting while...
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Page 8: Intended Use
The generally applicable, legal and other binding national and international regulations pertaining to the prevention of accidents and protection of the environment apply and are to be implemented in addition to the operating instructions. WARNING / CAUTION / ATTENTION! The device is intended exclusively for the purpose stated in the operating instructions (see chapter "Proper Use"). Any other use is not in accordance with its designated purpose. The manufacturer/supplier is not liable for any damage resulting from improper use. The user bears sole responsibility for such use. Proper use includes observance of the operating instructions and compliance with the inspection and maintenance conditions. - Page 9 WARNING / CAUTION / PLEASE NOTE! The following may not be cut / squeezed: - live cables - prestressed and hardened parts such as springs, spring steels, steering columns and rollers - pipes under gas or liquid pressure, - compound materials (steel/concrete) - explosive bodies such as airbag cartridges The operating pressure placed on the rescue device may only be directly changed after consultation with HURST. A change in settings may result in damage to property and/or injuries.
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Page 10: Functional Description
4. Functional description 4.1 Description The cutting devices have been designed in such a way that a hydraulically operated piston activates mechanical joints symmetrically to open or close a set of two opposite blade arms, thus enabling objects to be cut. For all devices, the movement is activated by means of a valve in the form of a star grip. All devices guarantee the dead man's switch and the full load-supporting function when the star grip is released. HURST eDRAULIC devices do not need to be connected to an external hydraulic source (e.g. a motor pump). Generation of the required hydraulic pressure takes place within the body of the device. A battery must be connected as an energy source. The accumulator battery can be inserted into the opening provided in the body of the tool and is automatically locked into position. You can extend the operating time of your eDRAULIC device by using several batteries. The batteries can be recharged after use, using a suitable external charger. The battery is not part of the delivery scope You will find suitable batteries in the HURST accessories list. eDRAULIC devices come with standard light fittings to facilitate work under poor light conditions. The light-emitting diodes attached on the operating side light up the work area. The main switch has also been equipped with a ring light, so that you can immediately detect whether the device is switched on or not. -
Page 11: Structure Of Rescue Devices
4.2 Structure of rescue devices S 788 EWXT 1 Star grip 2 Main switch 3 Quick exchange battery 4 Release button for battery 5 Handle 6 Blade arms 7 Pivot bolt with secured nut 8 Plastic housing 9 Tool body 10 Protective cover 11 Light... -
Page 12: Hydraulic Circuit Diagram
4.3 Hydraulic circuit diagram Below a simplified hydraulic ram representing the tool is depicted. A = tool B = star grip valve cutting opening 4.4 Operating movement controls The piston movement is controlled by the star grip on the attached valve (see illustration below). Star grip 5. Operation 5.1 Battery for eDRAULIC device Commissioning Before initial operation, the battery of the rescue device must be fully loaded, using the external charger. -
Page 13: Operating The Star Grip
Procedure: 1. Fully pull the unlocking button and carefully pull the battery upwards out of the de- vice. Do not use force! Connection slot 2. The battery can now be recharged in the charger (please take note of the separate operating instructions for the charger and the batteries to be used). 3. Insert the recharged or new battery into the eDRAULIC device until it reaches the stop. The battery will be automatically locked when correctly operated. 5.2 Operating the star grip (also see chapter on "Operating movement control") Open the device: Turn the star grip in the direction of the corresponding symbol (open) and hold it in this position. Close the device: Turn the star grip in the direction of the corresponding symbol (close) and hold it in this position. "Dead-man’s" function: Following release, the star grip automatically returns to the central position, fully guaranteeing load retention. -
Page 14: Cutting
6. Cutting 6.1 Safety notes Before rescue work can commence, the object must be stabilized in its current position. Ensure that the objects to be worked on are adequately underpinned and/or supported to ensure that there is no risk of sliding or shifting. Worldwide safety guidelines pertaining to the specific country must be observed and complied with. WARNING / CAUTION / PLEASE NOTE! HURST eDRAULIC devices are not explosion-protected! When using the devices in potentially explosive environments, the following must be excluded:... -
Page 15: Cutting
It is strictly prohibited to reach into the path of the rescue device (e.g. between the blade arms and the material/object to which the force is to be applied)! CAUTION / PLEASE NOTE! The strong effect of the force of the rescue equipment during operation could cause pieces of the vehicle to break off or fly off, posing a danger to persons. -
Page 16: Dismantling The Equipment / Deactivation Following Operation
During cutting, the gap between the blade tips (in the transverse direction) must not be exceeded, otherwise the blade is in danger of breaking: eDRAULIC cutting device max. gap at the blade tips [mm] / [in.] S 788 EWXT 5 / 0.20 ATTENTION! Where possible, avoid cutting through high-strength parts of the vehicle body (e.g. side impact protection). This may result in damage to the blades or to increased wear and tear! 7. -
Page 17: Maintenance And Service
8. Maintenance and service The devices are subject to very high mechanical stresses. A visual inspection must therefore be carried out after every use. This inspection enable the early detection of wear and tear and helps to prevent damage of the device. Regularly check the torque of the pivot central bolt on the cutting tools. You will find the torques for the pivot central bolt in the “Technical Data” chapter. An annual inspection of the tool is due once a year. This inspection must be performed by an authorized HURST Jaws of Life dealer technican or the warranty will be void. That means that the person must possess adequate specialist knowledge and experience in the fields of electrical engineering and hydraulics to be able to assess the condition of the tool. Every three years also a crack test of the blades is essential. ATTENTION! Clean off any dirt before checking the equipment! WARNING / CAUTION / PLEASE NOTE! Maintenance and repairs must be completed by an authorized HURST Jaws of Life dealer technician trained by HURST Jaws of Life. Repairs conducted by non-authorized dealers and/or non-HURST trained technician will void the warranty. 8.1 Oil change Under normal working conditions routine oil changes are not necessary with eDRAULIC tools. -
Page 18: Overview Of Edraulic Cutting Tools
• Use a clean, dust free, moist towel to wipe the tool and battery down to remove residual dirt and debris. • Allow tool and battery to air dry at room temperature as long as possible before next use. 36-48 hours is recommended. • Lubricate all exposed steel parts (spreader tips, squeezing plates, protective plates, etc.) with a rust inhibitor, like WD-40 Long Term Rust Inhibitor. • Carry out functional test as described in 8.3 8.3 Overview of eDRAULIC cutting tools Inspections to be carried out: Visual Inspection Cutting tool • Opening width of the blade arms on the tips (see chapter "Technical data"), • General tightness (leaks), • Operability of the star grip - check the automatic return into middle position after release (dead man’s function), • Existence and stability of handle, • Labels complete and legible, • Covers in perfect condition, • Check the torque of the pivot bolt (for torque M see "Technical Data"). -
Page 19: Repairs
9. Repairs 9.1 General information Service work may only be performed by the device manufacturer or by personnel trained by the device manufacturer and authorized HURST dealers. Only HURST spare parts may be used to replace all components (see spare parts list), as special tools and compliance with, assembly instructions, safety aspects and inspections are required (see also chapter "Maintenance and Servicing"). During assembly, ensure that all components are particularly clean, as dirt can damage the rescue equipment! WARNING / CAUTION / PLEASE NOTE! Protective clothes must be worn when repairs are being carried out, as the devices may also be pressurized when not in operation. -
Page 20: Preventive Service
9.2 Preventive service 9.2.1 Care instructions The outside of the device should be cleaned with a damp cloth from time to time (not the electrical contacts in the connection slot, on the battery). In addition, the metal surfaces are to coated with a suitable medium to counteract corrosion (not the electrical contacts in the connection slot, on the battery). (In case of doubt, contact your authorized HURST dealer or HURST directly!) 9.2.2 Function and load test If there is any doubt regarding the safety or reliability of a device, a function and stress test... - Page 21 Work steps: 1. First of all, carefully clean the rescue equipment. 2. Remove the two fixing screws "A" and remove the protective cover "B". To do this, first pull the rounded rear edge outwards and then backwards through the hand grip, as the edges of the protective cover adjoining the cylinder body are kept in place by guide grooves. If necessary, loosen the hand grip and move it backwards to obtain sufficient space to pull it out. CAUTION / PLEASE NOTE! When operating the device with the hand guard removed, there is an increased risk of injury caused by the exposed, moving elements. 3. Move the blade arms on the until bolt “E” is easily accessible. Now switch off the device and remove the battery from the device.
- Page 22 4. First remove the grub screw "G", then the central bolt nut "H" and then pull out the central pin "J". 5. Remove the locking rings “M” and push the pin “N” out. You can then pull out the blades “O” and the slide plates “P”. 6. Release the fixing screws “K” and remove them. The handle “L” can now be pulled out forwards. 7. The work steps must be carried out in reverse order to fit the new parts. ATTENTION! Apply HURST special grease to all sliding surfaces! NOTE: The torque required can be taken from the spare parts list of your particular unit.
- Page 23 9.3.2 Decals All damaged and/or illegible decals (safety notices, type plate etc.) must be replaced. Procedure: 1. Remove damaged and/or illegible decals. 2. Clean surfaces with industrial alcohol. 3. Affix new decals. Take care to affix the labels in the correct positions. If this is no longer known, you should ask your authorized HURST dealer or contact HURST directly.
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Page 24: Troubleshooting
10. Troubleshooting Fault Check Cause Solution The motor does not The main switch The star grip was In order to resume start after activating is not illuminated, not used for some work with the device, the star grip. although it has not time (at least 10 the eDRAULIC been switched off. minutes) during device must first battery operation. be switched off at The rechargeable the mains and then battery has switched on again. switched itself off. Alternatively, the capacity display on the rechargeable battery can be activated or the battery may be briefly unplugged and replugged again. Blade arms move Battery fully Battery flat Charge battery slowly or jerkily charged? - Page 25 Fault Check Cause Solution Following release, Casing damaged or Damage to the Repair by an the star grip star grip operation torsion spring for authorized dealer, doesn’t return to not working reset by personnel the central position smoothly? specially trained Soiled valve or star by HURST, or by grip HURST itself Defective valve Other mechanical damage (e.g. star grip) Hydraulic fluid Defective rod seal Repair by an leaking from the authorized dealer, piston rod by personnel Damage to the specially trained piston by HURST, or by HURST itself The useful Battery defective Replace battery operating time...
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Page 26: Technical Data
Contact an authorised HURST dealer or the HURST Customer Service Department directly if the malfunctions cannot be rectified. The address for the HURST Customer Service department is: HURST JAWS OF LIFE, INC A Unit of IDEX Corporation 711 N. Post Road Shelby, NC 28150 USA Phone: (704) 487-6961 Fax: (704) 487-7271 e-mail: contacthurst@idex.com 11. Technical data Since all values are subject to tolerances, minor differences may occur between the data on your equipment and the data in the following tables. The values may also differ because of reading inaccuracies and/or tolerances in the measuring equipment used. -
Page 27: Edraulic Cutter
11.1 eDRAULIC cutter Device type S 788 EWXT Item number 272288000 Dimensions [mm] 904 x 266 x 253 (excluding battery) [in.] 35.6 x 10.5 x 9.96 L x W x H [mm] Min. cutting opening [in.] 7.97 [kg] 22,2 Mass (excl. battery) [lbs.] 48.9 Nominal electrical voltage [V DC] 25,2 (with lithium-ion battery) Protection class... -
Page 28: Operating And Storage Temperature Ranges
11.3 Operating and storage temperature ranges Operating temperature [°C] / [°F] -20 … +55 -4 … +131 Storage temperature [°C] / [°F] -30 … +60 -22 … +140 (device not in operation) 11.4 Oscillation / vibration The total oscillation value / vibration value to which the upper limbs are exposed, is usually below 2.5 m/s². Higher values may be measured for short periods as a result of interaction with the materials to be processed. (The oscillations / vibrations were determined in accordance with DIN EN ISO 20643.) 11.5 Torques for central bolts Device type S 788 EWXT... -
Page 29: Accessories
12. Accessories 12.1 Batteries Only HURST lithium-ion rechargeable batteries may be used to operate eDRAULIC devices. These guarantee optimum performance and maximize the operating time of the eDRAULIC devices. Query button NOTE: To ensure maximum Charging state operating time and display maximum uptime, you must make sure that the battery is always fully charged before connecting it to a rescue device. Technical Data nom. Voltage Capacity Energy Weight Unit V DC Battery type 1 25,2 2.65 Battery type 2 25,2 3.53 The charge status display is activated either by pressing a switch or activates automatically when reaching a certain charge level (see table below). Capacity Activated by switch Automatic activation... -
Page 30: Battery Charger
12.2 Battery charger Only the "eDRAULIC Power Pack Charger" may be used for the lithium-ion batteries. NOTE: Pay strict attention to the separate operating instructions for the battery charger. 13. Instructions regarding disposal Please duly dispose of all packaging materials and removed items. Electrical equipment, accessories and packaging should always be disposed of in an environmentally compatible way. Only for EU countries: Do not dispose of electrical equipment with your household waste! According to the European Directive 2002/96/EC governing electrical and electronic waste and their application in national legislation, old electrical equipment must be separately collected and recycled in an environmentally compatible manner. -
Page 31: Notes
14. Notes... - Page 32 HURST JAWS OF LIFE, INC A Unit of IDEX Corporation 711 N. Post Road Shelby, NC 28150 USA Phone: (704) 487-6961 Fax: (704) 487-7271 e-mail: contacthurst@idexcorp.com Made in USA eDRAULIC2_manual_272288085_S788EWXT_en.indd © Copyright 2019 Hurst Jaws of Life, INC...
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