- Hurst Jaws Of Life
Contents
1. Storage temperature device not in operation 60 14 Notes 61 62 63 WARNING CAUTION ATTENTION A Before connecting equipment make sure that all the components used are suitable for the maximum operating pressure of the hydraulic power unit In cases of doubt you must consult HURST directly before connecting the equipment Please dispose of all packaging materials and dismantled parts properly HURST JAWS OF LIFE HALE PRODUCTS 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 Subject to revision Power Unit_P650 BA US 375710085 0312 indd Copyright 2012 HALE Products Inc2. gt HURST JAWS OF LIFE Operating instructions for rescue equipment gt Hydraulic units 375710085 US Edition 02 2012 replaces 11 2011 Original operating instructions OU irae RE A 5 1 5 2 5 3 5 4 5 5 5 6 5 7 5 8 5 9 5 10 Contents Hazard classes Product safety Intended use Labelling of the units Functional description General information Structure of the units Motor variants Valve variants Pumps Frame with side parts Connection to the rescue equipment Hose reels Carrying handle Toolholder 6 Connection of the hose lines devices 7 Set up and start up 7 1 7 2 Set up Start up 8 Operation 8 1 8 2 8 3 8 4 8 5 8 6 8 7 Starting the motor engine Stopping the motor engine Refuelling combustion engines only Controlling the valves Hose reels Telescopic carrying handles Toolholder 9 Removing the device deactivation following operation 10 Tests 10 1 10 2 10 3 10 4 Recommended inspection intervals Hydraulic power units with combustion engine Hydraulic power units with electric motor Hose reels 11 Maintenance and repair 11 1 11 2 11 3 11 4 General information Maintenance work on the hydraulic power unit Additional maintenance work on units with a combustion engine Maintenance work on mounted hose reel 12 Troubleshooting 13 Technical data 13 1 13 2 13 3 13 4 13 5 13 6 13 7 13 8 Unit Noise emissions Sparking plug Spar
3. CAUTION O The bend protection on the hoses should only rest lightly on the hose guide when the hose is rolled up completely However if the hose line is rolled up so far that the bend protection is pressed up against the hose guide the following could occur The hose material is stretched and the hose damaged possibly beyond repair The couplings bend protection and hoses may be damaged during transportation or storage 25 8 6 Telescopic carrying handles o n _ a8 ear F The hydraulic power units could be retrofitted with handles if required The handles should be used to transport the hydraulic power unit The telescopic carrying handles are screwed directly to the frame The blanking plugs must be removed before the handles can be attached Turn the handles clockwise approx 1 revolution in the end positions retracted or extended completely to secure them properly Turn the handles counterclockwise approx 1 revolution to unlock them Always fully extend and secure the carrying handles before using them to transport the unit When not in use always insert and secure the carrying handles to prevent them from restricting your movement when operating the unit The handles should also be inserted and secured when stored to reduce the risk of accident Procedure fitting the telescopic carrying handles to units without a reel 1 Remove protective covers A using a screwdriver
4. 11 4 Maintenance work on mounted hose reel A visual inspection of the fitted hoses and couplings is to be carried out after every use or every six months Components showing obvious signs of damage or leaks must be replaced If screwed connections start to leak check whether they are tight first of all If the leak continues after the screwed connection has been tightened the screwed connection is defective and must be replaced Hose lines will age over time and must be replaced according to statutory regulations If there are no applicable statutory regulations the hoses must be replaced after 10 years at the latest Read the separate operating instructions for the hoses 11 4 1 Replacing the extension hose lines Procedure First of all empty the hydraulic reservoir as described in the chapter Replacing the hydraulic fluid Unroll extension hoses A Slide protective hoses B over elbow piece C leaving the screwed connection uncovered Then unscrew the hoses 43 3 Screw the new extension hoses onto the elbow pieces with a torque of M 40 Nm Do not forget to slide protective hoses B back over the screwed connections The protective hose set must be fitted to the reel 4 Roll up the extension hose again 5 The hydraulic fluid reservoir must then be filled and the unit vented 11 4 2 Mono couplings The mono couplings must be replaced if there is external damage the lock does not functio
5. 3 Then slide the telescopic carrying handle all the way in and lock in position 26 8 7 Toolholder A device must first be detached from retaining clip D before it can be removed from the toolholder S Wan 7 a The device is fitted in the reverse order Make sure that the handle tube on the rescue equipment engages properly in the retaining clip 27 Procedure fitting and adjusting the toolholder NOTE If you wish to install a toolholder at a later time or adapt an existing mount to a new device follow the working steps described below 1 Mount the retaining clip A on block C and secure using the screws B 2 Secure the two brackets D and E to mounting plate G using screws F 28 3 Then mount bracket H for the spreader and combi tool as well as bracket J for the cutters to mounting plate K see illustration below The brackets are secured in position using screws L M N and O as well as washers P and nuts Q One exception is the retainer for type S700 cutters Bracket J must be installed on mounting block R using screws N and O because of the size of the cutters Mounting block R is then secured to mounting plate K using screws S N N For some types of spreaders the lugs on bracket H must be cut off with a knife 29 4 Mounting plates G and K are secured to the frame of the unit using screws T as shown in the illustration
6. The dust protection caps must be inserted in the female coupling in such a way that the grooves can be guided over the C pins Screw the dust protection caps to the limit stop to fix in the female couplings 18 7 Set up and start up WARNING CAUTION ATTENTION Combustion engine units and electrical units must not be used in a potentially explosive situation danger of the formation of sparks Units with combustion engines must not be used in enclosed spaces as there is a danger of poisoning and or asphyxiation The unit is to be set up in a suitable location safe location flat surface sufficient distance from vehicles loads sources of ignition etc HURST units work perfectly at an angle of up to 20 However in order to guarantee maximum safety and fluid withdrawal they should be operated in as level a position as possible 7 2 Start up NOTE i Before commissioning the unit for the first time or after longer periods of inactivity the starter battery must be connected and the engine oil checked units with a combustion engine Replenish the engine oil if necessary HURST units are delivered without engine oil for reasons of safety Please proceed as follows 1 First of all check the fluid levels in the unit Top off the fluids to the top of the reservoir to reach maximum level If possible the hydraulic power unit should be positioned on a level surface when the fluid levels are checked and the
7. When connecting the hose lines devices always ensure that the connection components are not soiled Clean beforehand if necessary WARNING CAUTION ATTENTION Before connecting equipment make sure that all the components used are suitable for the maximum operating pressure of the hydraulic power unit In cases of doubt you must consult HURST directly before connecting the equipment The hose lines devices are connected to the hydraulic pump or hose reel via mono coupling halves male and female without any risk of confusion Dust protection caps Male coupling Female coupling Before coupling remove the dust protection caps then connect male and female couplings and turn the locking sleeve of the female coupling in direction 1 until the locking sleeve latches The connection has now been made and locked Decoupling is accomplished by turning the locking sleeve in direction 0 Coupling of the hose lines when under pressure is also possible assuming the connected equipment is not turned on NOTE i We recommend connecting the coupling halves in a depressurized state when working in areas with low ambient temperature and using extension hose assemblies hose reels otherwise the coupling may require the application of a great deal of force For dust protection the supplied dust caps must be refitted Fitting the dust protection caps The A dust protection caps have two external grooves B
8. 2 4 Replacing signs All damaged and or illegible signs safety notices type plate etc must be replaced Procedure 1 Remove damaged and or illegible labels 2 Clean surfaces with industrial alcohol 3 Affix new signs Ensure that you attach the signs in the correct position If this is no longer Known you should ask your authorized HURST dealer or contact HURST directly 38 11 3 Additional maintenance work on units with a combustion engine also read the separate instructions provided by the engine motor manufacturer Perform the following maintenance work every 50 operating hours e Wash the air filter element Wash more frequently when using the unit in a dirty or dusty environment e Check the sparking plug and clean if necessary Perform the following maintenance work every 100 operating hours e Change the engine oil Change more frequently when operating the unit in a dirty or dusty environment Perform the following maintenance work every 200 operating hours e Adjust the electrode gap on the sparking plug e Clean the fuel filter Perform the following maintenance work every 500 operating hours e Replace the sparking plug and filter element e Clean or adjust the carburetor valve clearance valve seat and cylinder head Perform the following maintenance work every 1000 operating hours or every 2 years e Check the starter e Inspect the engine motor for damage e Replace the fuel line NOTE The first oil chang
9. All safety and danger notes on the device are to be kept complete and in a legible condition Any mode of operation which impairs safety and or stability of the device is forbidden The maximum operating pressure set on the equipment must not be changed Comply with all specified dates or dates specified in the operating instructions pertaining to regular checks inspections of the equipment Only genuine HURST accessories and spare parts are to be used for repairs When working with this equipment or when transporting it ensure that you do not get caught up in the hose or cable loops and trip When working with combustion engine pumps never touch the motor and exhaust system since there is a risk of burning Combustion engines must not be used in enclosed spaces as there is a danger of poisoning and or asphyxiation Filling up during operation of the combustion engine is strictly prohibited Keep combustion engines and their fuel away from ignition sources as otherwise there is the danger of an explosion To avoid the danger of fire when using combustion engines ensure sufficient ventilation and maintain a safety distance of at least 1 m 39 4 in to the walls and other screens Please ensure that the combustion engine pumps are always placed on as flat a surface as possible in order to prevent fuel from leaking The device is filled with hydraulic fluid These hydraulic fluids can be
10. If this work is absolutely imperative additional mechanical supports must be used Inspect the device for visible defects or damage before and after use Check all lines hoses and screwed connections for leaks and externally visible damage and repair immediately Escaping hydraulic fluid can cause injuries and fires In the event of malfunctions immediately shut down the equipment and secure it The malfunction is to be repaired immediately Observe all safety and danger notes on the device and in the operating instructions Please ensure that all safety covers are present on the equipment and that they are in proper and adequate condition Safety devices must never be deactivated Before the device is switched on started up and during its operation it must be ensured that nobody is endangered by the operation of the device When working in the proximity of live components and wires appropriate steps must be taken to avoid current transmission or high voltage discharge through the device The build up of static charge with the potential consequence of spark formation is to be avoided when handling the device Motor pumps may not be used in explosion hazard areas If fuel for combustion engines is spilled this fuel must be removed completely before starting the motor Do not carry out any changes additions or conversions to the equipment without obtaining prior approval from HURST
11. below 30 5 Now adapt the brackets to the respective devices Loosen the fixing screws F and S or nuts Q slightly so that the brackets are easy to move Do not unscrew the screws or nuts completely The elongated holes U in the mounting plates allow you to adapt the brackets to almost every device or individual position of your choice Next tighten all loose fixing screws or nuts to secure the bracket in the selected position 6 The mount is dismantled in reverse order 31 9 Removing the device deactivation following operation Once work has been completed all connected equipment is to be reset to its base position before the unit is shut down You can now stop or switch off the motor engine on the unit and disconnect it from the mains supply if using an electric motor T ATTENTION when using units with a combustion engine Check that the engine switch is set to OFF and remains in that position to prevent anyone from starting the unit unintentionally NOTE il If your unit is equipped with a hose reel the hoses must be rolled onto the reels correctly Mono couplings If the connected hose lines have to be dismantled during shut down decouple the mono couplings as described in chapter Connection of the hose lines Ensure that you replace the dust protection caps onto the mono coupling halves Give the hydraulic power unit a general clean before placing in storage If you intend to store the un
12. 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 device may only be operated by persons with appropriate training in the safety aspects of such equipment otherwise there is a danger of injury occurring We would like to point out to all users that they should carefully read and adhere to the operating instructions before they use the equipment We further recommend that a qualified instructor train you in the use of the product A WARNING CAUTION A The operating instructions for the hoses the accessories and the connected hydraulic equipment must also be observed Even if you have already received instructions on how to use the equipment you should still read the following safety notes again WARNING CAUTION Ensure that the accessories and connected equipment used are suitable for the maximum operating pressure Immediately report any changes that occur including changes in operating behavior to the appropriate persons departments If necessary deactivate the device immediately and secure Please ensure that no body parts or clothing get stuck between the visibly moving parts against restart Wear protective clothing safety helmet with visor safety shoes and protective gloves It is prohibited to work under load if this load is lifted exclusively by hydraulic equipment
13. l 1 65 gasoline gal US 0 44 Weight incl kg 69 5 75 0 gasoline and 5 5 hydraulic fluid Ibs 153 3 165 4 Valve typ QUAD Max number of device 4 connections Additional series equipment Le Electric starter D HP High pressure 2 LP Low pressure 3 1MPa 10 bar 58 13 2 Noise emissions JL SE JL SG JL QG Device type and and and JL SE DHR JL SG DHR JL QG DHR No load operation measuring distance Full load operation measuring distance dB A 1m No load operation measuring distance dB A 72 4m Full load operation measuring distance dB A 78 81 81 4m 13 3 Sparking plug Sparking plug type BR6HS NGK 13 4 Sparking plug socket Articulated sparking plug socket size 21 mm a a a a 13 5 Fuel Lead free gasoline ROZ 91 to ROZ 98 Max permissible bioethanol content 10 59 13 6 Engine oil SAE 10W 30 mee 0 40 60 8 30 20 10 O 10 20 30 40 C 0 100 F 13 7 Hydraulic fluid recommendation CAUTION Use only the hydraulic fluid HURST BLUE Other fluids could cause damages to the hydraulic power unit Fluid temperature range CAS number 20 55 C A Polyether Polyol 9003 13 8 4 0 131 F 13 8 Operating and storage temperature range Operating temperature C F 4 Ambient temperature device o in operation C F 25 45 er C F 30 60
14. motor is driven by electricity from the mains supply or by electricity produced by generators In the case of operation with generators make sure that voltage fluctuations do not occur as these have a direct influence on the pumping capacity and stability of the hydraulic power unit The possible operating voltage the current frequency and the required intensity of current can be found in the chapter entitled Technical data NOTE Using an extremely long electrical connection cable may reduce the output resistance and the power supply to the motor The performance of the motor will be affected as a result 5 3 2 Gasoline engine These hydraulic power units are equipped with a combustion engine driven by the fuel gasoline gasoline Units can be fitted with both an electric starter and a pull cord starter or a pull cord starter only It is only possible to determine the unit version from the item number and unit name or the designation printed on the unit The integral generator charges the starter battery automatically while the engine is operating NOTE lil Not all the technical details of the engine installed in HURST units correspond to the engine described in the separate operating instructions provided by the manufacturer Components such as the gasoline tank have been modified to guarantee the safety of the overall hydraulic power unit because the unit is used for rescue operations However it is important that you o
15. operating MPa 14 pressure LP psi 2 031 Flow rate l min 2x 1 45 HP gal US min 2 x 0 38 Flow rate l min 2x3 6 LP gal US min 2x0 95 Max fill quantity l 5 5 Hydraulic fluid gal US 1 45 Max usable I 4 8 quantity Hydraulic fluid gal US 1 27 Max fill quantity l 1 65 gasoline gal US 0 44 Weight incl kg 36 5 42 5 gasoline and 4 3 hydraulic fluid Ibs 80 5 93 7 Valve typ Simultaneous operation Max number of device 2 connections Additional series equipment SS Electric starter D HP High pressure 2 LP Low pressure 3 1MPa 10 bar 99 13 1 4 Type series JL SG DHR Geratetyp JL SG DHR JL SG ES DHR Artikelnrummer 375712000 375722000 Motor type 4 stroke gasoline engine Power an a HP 5 63 ti Sm Speed 3300 rpm Max operating MPa 35 pressure HP psi 5 076 Max operating MPa 14 pressure LP psi 2 031 Flow rate l min 2x 1 45 HP gal US min 2 x 0 36 Flow rate l min 2x3 6 LP gal US min 2x 0 95 Max fill quantity l 5 5 Hydraulic fluid gal US 1 45 Max usable I 4 8 quantity Hydraulic fluid gal US L37 Max fill quantity l 1 65 gasoline gal US 0 44 Weight incl kg 58 5 64 0 gasoline and 4 3 hydraulic fluid Ibs 129 0 141 1 Valve typ Simultaneous operation Max number of device 2 connections Additional series Electric starter D HP High pressure 2 LP
16. the Power cable not ete power cable does not operate j connection cable connected correctly when the switch is on the electric Defect on connection Shut down immediately actuated or does motor cable and have repaired by not operate at full authorized dealer motor power engine manufacturer or directly by HURST Extension cable Cable not completely Uncoil the power cable or cable drum uncoiled completely used Cable losses in Use a different suitable extension cable or extension cable or cable cable drums too great drum electrical resistance Electric motor Battery flat Charge battery connected Electric motor Connect the motor to a to a suitable not suitable for different suitable power accumulator accumulator operation supply Electric safety Power supply not Connect the motor to a device in power __ Suitable for electric different suitable power supply has motor supply triggered Electric safety device Safety device too low in power supply has use a different fuse triggered although it is suitable for operation of the motor Are all valves Electric motor Shut down immediately depressurized defective or and have repaired by base position overloaded due to authorized dealer motor another defect in the engine manufacturer or unit directly by HURST 46 Combustion Check fuel level Fuel tank empty Top raston o fuel engine will not in tank start Electric starter Electric starter battery Ch
17. Low pressure 3 1MPa 10 bar 56 13 1 5 Type series JL QG Device type JL QG JL QG ES 375730000 375740000 Motor type 4 stroke gasoline engine Power KW 91 HP 6 84 a mm Speed 3600 rom 35 MPa Max operating pressure HP Max operating pressure LP Flow rate HP Flow rate LP Max fill quantity Hydraulic fluid Max usable quantity Hydraulic fluid Max fill quantity gasoline Weight incl gasoline and 5 5l hydraulic fluid psi MPa psi l min gal US min l min gal US min I gal US I gal US I gal US kg lbs 5 076 14 2 031 4x 1 1 4 x 0 29 4x 3 0 4 x 0 79 5 5 1 45 4 8 1 27 1 65 0 44 Valve typ QUAD Max number of device 4 connections Additional series equipment E Electric starter D HP High pressure 2 LP Low pressure 3 1MPa 10 bar of 13 1 6 Type series JL QG DHR Device type JL QG DHR JL QG ES DHR 375732000 375742000 Motor type 4 stroke gasoline engine Power KW 5 1 HP 6 84 min S d 3600 ai rpm Max operating MPa 35 pressure i HP psi 5 076 Max operating MPa 14 pressure LP psi 2 031 Flow rate I min 4x 1 1 HP gal US min 4 x 0 29 Flow rate l min 4x 3 0 LP gal US min 4x 0 79 Max fill quantity l 5 5 Hydraulic fluid gal US 1 45 Max usable l 4 8 quantity Hydraulic fluid gal US 1 27 Max fill quantity
18. RBO function both connections must be pressurized The TURBO function is activated by turning the large lever towards the connection that requires double the fluid quantity 22 i NOTE All shift levers must always be moved all the way to their end position 8 4 2 QUAD mode control valve Six levers are located on the connecting block of this valve Each of the four small levers is assigned to a pressure port Actuating the respective lever regulates the pressure in the corresponding pressure hose or depressurizes the connection 3B There are also two large levers that control the TURBO function Shifting the lever to the relevant position allows you to supply double the quantity of hydraulic fluid to one of the two connections either side of the lever In order to activate the TURBO function both connections must be pressurized The TURBO function is activated by turning the large lever towards the connection that requires double the fluid quantity lil NOTE All shift levers must always be moved all the way to their end position 8 5 Hose reels 8 5 1 Locking brake The locking brake is designed to prevent extension hose pairs from unrolling during transportation Pull and turn knob A through 90 to release the locking brake To apply the locking brake turn knob A through approx 90 until it engages automatically 8 5 2 Crank handle The crank handle should make the hose easier
19. ables are in proper order First of all connect the power cable for motors with power supply to the supply socket The motor is started by pressing the ON OFF switch on the side of the unit The ring around the switch lights up when the unit is switched on CAUTION Electric motors draw a brief very high starting current When using a generator you should therefore check to see that it can supply the relevant current strength The power supply must be protected by a 25 A fuse minimum 8 2 Stopping the motor engine 8 2 1 Gasoline engines The engine on the unit stops automatically when the fuel tank is empty However you should stop the machine and refuel before this happens The following procedure stops the engine manually Stopping procedure 1 Make sure that all connected rescue devices are in base position starting position 2 Set the levers on the control valves to neutral position depressurized 3 Set the engine switch to the OFF position WARNING CAUTION A Never touch the hot motor engine parts this could result in severe burns 8 2 2 Electric motors Set the levers on the control valves to neutral position depressurized Pressing the ON OFF switch on the side of the unit switches the engine off again The illuminated ring around the switch goes out When the engine is switched off the connected hydraulic pump stops delivering 21 8 3 Refuelling combustion engines only The engine must be s
20. arge electric starter present battery or use pull cord starter Check fuel line Fault in the fuel line Shut down immediately and have repaired by authorized dealer motor engine manufacturer or directly by HURST Check the starter Starter button or pull Actuate starter button or button and cord starter not pull cord starter engine switch actuated Engine switch not set Set engine switch to to Choke Choke Hydraulic power Ambient temperature For the solution unit or motor too low consult the separate engine not operating instructions suitable for of the engine motor the working manufacturer environment Use a different hydraulic or operating fluid that is suitable for the corresponding ambient temperatures see chapter Technical data Not enough oxygen in Use a different more the air because of the suitable hydraulic power altitude of application unit location of the Have the engine set to hydraulic motor the altitude of application by an authorized dealer motor engine manufacturer or HURST directly only if the unit is to be used frequently at this altitude Check air filter Air filter contaminated Clean or replace the air filter Are all valves Combustion Have repaired by depressurized engine defective or authorized dealer motor base position overloaded due to engine manufacturer or another defect in the directly by HURST unit 47 The motor engine Check hose lin
21. ation marks and warning labels are present and legible e All covers e g exhaust deflector are present and undamaged e All heat protection mats on the reservoirs are present and undamaged e Minimum gap of 10 mm between the reservoirs and hot motor engine components e Liquid levels are within the specified tolerances e Starters are in proper working order and undamaged e Electric cables are fully functional and undamaged e Electric starter battery is fully functional and undamaged e Couplings must be easy to couple e Dust protection caps must be available e All necessary accessories such as sparking plugs plug spanner and fuel canister must be present e Toolholder if available is undamaged and fully functional e Carrying handles if available are undamaged and fully functional 34 Functional check No suspicious noises Starter fully functional Engine switch fully functional Test for maximum load Recommendation use the HURST test kit including testing instructions for the functional check 10 3 Hydraulic power units with electric motor Visual inspection Hydraulic power units All hydraulic connections are tightened General tightness no leakage sweated oils do not have any influence on the function Obvious damage to the motor engine valve blocks or casing Side panels present and securely fitted Type plate all activation plates signs identification marks and warning labels are present and legible A
22. bserve all safety regulations and operating maintenance and storage instructions included in the separate manual accompanying the engine without fail because they are unaffected by any adaptations made by HURST If the battery discharges completely after a period of inactivity you must start the unit using the cord pull starter and allow the unit to operate until almost a complete tank of fuel has been consumed The battery will then be fully charged If the battery is still not charged after the unit consumes a full tank of fuel the causes may include the following the contacts connector have come loose and must be connected again the battery is defective and must be replaced the generator or engine is damaged In this case contact HURST customer service directly 13 5 4 Valve variants The valves are always permanently installed in a connecting block This block is integrated directly in the hydraulic power unit Both hose lines pressure and return are always connected to the connecting block The units are fitted either with a SIMO or a QUAD connecting block Both connecting blocks also have a TURBO function More specifically this means that there are always 2 device connections linked internally to one another A shift lever gives you the option of supplying hydraulic fluid to both connected devices simultaneously or supplying double the quantity to one device TURBO function Supplying double the quantity of f
23. ctric motor The pump conveys fluid from the reservoir and builds up hydraulic pressure The distribution of the fluid is controlled by mounted valves Two versions of units discribed in this manual are available 1 small frame without reel 2 large frame with mounted reel The telescopic carrying handles are an optional accessory for the first version and can always be retrofitted The telescopic carrying handles and the toolholder are an optional accessory for the second version and can always be retrofitted NOTE i A hose reel is only included with the second version and cannot be retrofitted at a later date 11 5 2 Structure of the units 8 41 4 12 14 Hydraulic fluid reservoir 2 Gasoline tank Engine with hydraulic pump Connecting block with control valves Engine switch Electric starter button Pull cord starter Valve control lever TURBO control lever Mono couplings Hydraulic fluid fill cap Gasoline fill cap Frame Side panel Rubber buffer ON OFF switch for electric motor Telescopic carrying handle also optionally available for retrofitting Hose reel Crank handle hose reel Lock hose reel Hose guide Toolholder 12 5 3 Motor variants WARNING CAUTION ATTENTION For all motor variants also comply with the separate operating instructions of each motor manufacturer 5 3 1 Electric motor These hydraulic power units are equipped with an electric motor The electric
24. dditional data concerning your unit can be obtained from HURST on request The restriction for the maximum fill quantity of the hydraulic reservoir is calculated from the operability in inclined position specifications in the relevant standards 13 1 Unit 13 1 1 Basic unit dimensions Units without hose reel 445 mm 17 52 in 445 mm 17 52 in 17 33 in 31 30 in 810 mm 31 89 in 53 13 1 2 Type series JL SE and JL SE DHR Device type JL SE JL SE DHR 375760000 375762000 Motor type 230V 60 Hz Electric motor Power kw ADS HP 3 55 min Speed 3540 ii rpm Max operating MPa 35 pressure HP psi 5 076 Max operating MPa 14 pressure LP psi 2 031 Flow rate l min 2x 1 47 HP gal US min 2 x 0 36 Flow rate l min 2 x 3 65 LP gal US min 2x 0 95 Max fill quantity l 5 5 Hydraulic fluid gal US 1 45 4 8 Max usable I quantity Hydraulic fluid gal US 1 27 Weight incl 4 3 kg 41 0 63 5 hydraulic fluid Ibs 90 4 140 0 Starting current A Valve typ Simultaneous operation Max number of device 2 connections D HP High pressure 2 LP Low pressure 3 1MPa 10 bar 54 13 1 3 Type series JL SG Geratetyp JL SG JL SG ES Artikelnrummer 375710000 375720000 Motor type 4 stroke gasoline engine Power ai a HP 5 63 tom mm Speed 3300 rom Max operating MPa 35 pressure HP psi 5 076 Max
25. e Hose line not is running but connected properly or the connected is damaged rescue equipment does not move Check the Valve not switched to when the valve is position of the pressurize the supply actuated valve lever on the line pump block of the hydraulic power Defective pump unit unit Connect another The previously device and connected device is check whether it defective functions when the valve is actuated Mono coupling female defective The connected Connect another The previously rescue equipment device and connected device is does not move on check whether it defective activation of the functions when valve or moves the valve is only very slowly or actuated unevenly Check the Pressure relief on position of the the unit is still active valve lever on the circulation at static pump block of the pressure hydraulic power unit Defective pump unit Air in hydraulic system Mono coupling female defective 48 Inspect the connection of the hose line and if necessary reconnect Switch valve to pressurize the supply line Have repaired by authorized dealer or directly by HURST For the solution consult the operating instructions for the connected device Replace mono coupling female For the solution consult the operating instructions for the connected device Check the switching positions of the valve lever s and if necessary reset as far as the final pos
26. e must take place after 20 operating hours and the next oil change after 100 hours Use a standard articulated sparking plug socket spanner 21 mm to remove the sparking plug A straight fixed sparking plug socket would damage or break off the sparking plug 39 11 3 1 Changing and cleaning the air filter Maintaining the air filter in good condition is essential The ingress of dirt due to incorrect installation incorrect maintenance or unsuitable filter inserts causes damage and excess wear to the engine motor Always keep the air filter insert clean Procedure 1 Remove the rear side panel on the hydraulic power unit by detaching the mounting clips 2 Unhook the cover and remove the filter insert 3 Paper insert To clean tap gently to loosen the dirt and then blow off the dust Never use oil Clean the paper insert every 50 operating hours and replace every 200 hours or once a year 4 Urethane foam Wash out the insert with fresh water Squeeze out the water and dry the insert DO NOT WRING OUT 5 Then refit the filter Air filter 40 11 3 2 Changing cleaning and adjusting the sparking plug Procedure 1 Remove the right side panel on the hydraulic power unit by detaching the mounting clips 2 Remove the sparking plug connector The connector is attached firmly and may require greater effort to remove During removal make sure you do not bend the connector or exert lateral force on the sparking p
27. fective handles or frame handles Hose reel does Locking brake still Release locking brake not turn applied Hose reel defective Have repaired by authorized dealer or directly by HURST Toolholder set Adjust the toolholder incorrectly to accommodate the device Impossible to attach equipment to the toolholder Toolholder defective Replace toolholder 50 It is frequently not Hydraulic fluid not Hydraulic fluid must be possible to couple adapted to the replaced see chapter hose lines application situation Recommended hydraulic fluids Coupling defective Coupling must be replaced immediately Leak in the Coupling defective Coupling must be couplings replaced immediately Fluid escaping Leak possible damage Replace hoses from hoses or joints Surface of the Mechanical damage Replace hoses hoses damaged or contact with aggressive agents Hydraulic fluid Extension hose Hose lines defective Replace hoses escaping from pairs damaged inside the hose Screwed Connection between Tighten the screwed drum connection on the hose lines and elbow connections between hose lines tight pieces not tight the hose lines and elbow enough pieces Screwed Defective elbow piece Replace the elbow piece connection or seal or seal between elbow Defective shaft Repair of fault by piece and shaft authorized dealer leaking specially trained HURST staff or directly by HURST Hydraulic fluid Connection Ho
28. for _ the job and personal protecting equipment are essential use protective shields YD if required HURST offers a suitable test kit for the functional check of the hydraulic power units For specific details please consult the HURST range of accessories or contact your HURST dealer 10 1 Recommended inspection intervals 10 1 1 Visual inspection A visual inspection is to be carried out after every use or every six months 33 10 1 2 Functional check Operating period per day Functional check up to 8 hours 1 x per quarter up to 24 hours 1 x per month A functional check should be performed in addition to these intervals if the unit makes Suspicious noises there are grounds for suspecting that the unit has sustained internal damage Should either of the above occur several times within a month or the maximum pressure is not reached during the functional check contact HURST customer service immediately See the chapter Troubleshooting for contact details 10 2 Hydraulic power units with combustion engine Visual inspection Hydraulic power units e All hydraulic connections are still tightened e General tightness no leakage sweated oils do not have any influence on the function e Obvious damage on the motor engine connecting blocks or frame e Obvious damage to the hydraulic system and or gasoline tank e Side panels present and securely fitted e Type plate all activation plates signs identific
29. harmful to your health if swallowed or if their vapors inhaled Direct contact with the skin is to be avoided for the same reason Please also note that hydraulic fluids can also have a negative effect on biological systems Ensure adequate lighting when you are working Always keep these operating instructions within reach where the device is used All damaged electrical components e g scorched cables etc are to be replaced immediately Damage to electrical components may only be repaired by a qualified electrician in compliance with all applicable national and international safety guidelines and regulations When setting up the units it must be ensured that they are not impaired by the influences of extreme temperatures When working with or storing the device ensure that the function and the safety of the device are not impaired by the effects of extreme external temperatures or that the device is damaged in any way Please note that the device can also heat up over a long period of use Before transporting the device always ensure that the accessories are positioned such that they cannot cause an accident Ensure the proper disposal of all removed parts leftover oil hydraulic fluid and packaging materials 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 implemen
30. it for longer clean the outside thoroughly and lubricate all mechanical moving parts CAUTION Depending on the size and the weight of the hydraulic power unit it should be transported to the storage site by one person or several people On units with a combustion engine you should drain the fuel from the tank and disconnect and or remove the starter battery Avoid storing the hydraulic power units in a damp environment Please observe the regulations in the separate operating instructions for the hose lines 32 10 Tests The hydraulic power units are subject to very high mechanical loads A visual inspection is therefore to be carried out after every use however at least one visual inspection is to be carried out every six months This reveals wear and tear in good time punctual replacement of these wearing parts prevents damage to the equipment Also check regularly that all the securing screws are tightened if applicable comply with prescribed tightening torques Every 3 years or when there might be doubts regarding the safety or reliability of the unit an additional functional check is to be carried out in this connection comply with the applicable national and international regulations with regard to the maintenance intervals of rescue equipment T CAUTION Clean off any dirt before checking the equipment WARNING CAUTION ATTENTION In order to carry out testing maintenance and repair work tools appropriate
31. ition Have repaired by authorized dealer or directly by HURST Vent the hydraulic system Replace mono coupling Connected rescue Check hydraulic Insufficient fluid in the Top off hydraulic fluid to device does not fluid volume hydraulic reservoir the maximum filling level reach its final in hydraulic Caution Before position reservoir topping off fluid the rescue equipment must be returned to the base position Usable hydraulic fluid Use a different rescue volume of the unit is device with a required insufficient quantity below the maximum usable quantity of the unit Connected rescue Maximum permitted Have the pressure device does not operating pressure limiting valve reset or reach its specific of the pump is not repaired by authorized performance data reached dealer or directly by HURST Defective pump block Have repaired by authorized dealer or directly by HURST Connected device is For the solution defective consult the operating instructions for the connected device During the Check the details The operating pressure No repair or fault functional check of the rescue of the connected rectification required A pressure gauge _ device rescue device is installed between locked internally the rescue Connected rescue Consult the separate equipment and device is defective operating manual for the hydraulic the connected rescue power pack does device not indicate the maximum operating pressure
32. king plug socket Fuel Engine oil Hydraulic fluid recommendation Operating and storage temperature range 14 Notes 36 36 37 39 43 46 53 53 59 59 59 59 60 60 60 61 1 Hazard classes We distinguish between various categories of safety instructions The table below gives you an overview of the assignment of symbols pictograms and key words to the specific hazard and possible consequences Damage err DANGER Immediate danger Peath or major injury Potentially WARNING dangerous situation Potential death or major injury CAUTION Less dangerous Minor or slight situation injury Advice for application and other important useful information and advice Danger of damage ATTENTION to objects environment Q Wear helmet with face protection Wear safety gloves Wear safety shoes Proper recycling Observe principles of environmental protection Read and observe operating instructions Damage to the equipment damage to the environment damage to surrounding materials No injury damage to persons environment equipment 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 the product design Moreover the operating instructions are intended to help the safe use of HURST products The generally applicable legal and other
33. ll covers e g fan cover are present and undamaged Liquid levels are within the specified tolerances ON OFF switch in proper working order undamaged Couplings must be easy to couple Dust protection caps must be available All electrical attachments such as cables and plugs must be present and undamaged Toolholder if available is undamaged and fully functional Carrying handles if available are undamaged and fully functional Functional check No suspicious noises Test for maximum load Recommendation use the HURST test kit including testing instructions for the functional check 35 10 4 Hose reels Visual inspection Hose reel e General tightness no leaks e Hose drums rotate easily e All fixing screws are present and tightened e Frame and drum undamaged e Crank handle present undamaged and fully functional e Locking brake on double hose reel present and fully functional e All signs present and legible Hoses e Visual inspection for visible damage and leaks e Check age of hose replace after 10 years at the latest e Hose connection on mounted reel secure and not leaking e Couplings must be easy to couple e Dust caps fitted Functional check e Extension hose pairs unroll and roll up smoothly e No suspicious noises 11 Maintenance and repair 11 1 General information HURST hydraulic power units have an extremely complex design but require minimal maintenance work Maintenance work does not requi
34. lug In a worst case scenario you will destroy the sparking plug and will then have to carry out expensive repairs Sparking plug connector Sparking plug 3 Remove the sparking plug from the engine using a 21 mm articulated sparking plug socket for sparking plugs 4 Remove any soot on the sparking plug using a sparking plug cleaning agent or a brush If the sparking plug is damaged beyond repair e g electrodes burnt it must be replaced with a new one 5 Set the gap between the electrodes to 0 6 0 7 mm 0 6 0 7 mm 6 Then refit the sparking plug 11 3 3 Changing the engine oil and engine filter Please refer to the separate operating instructions provided by the engine manufacturer for information on changing the engine oil and the engine filter 41 11 3 4 Externally charging and replacing the starter battery Procedure 1 Remove the left side panel A on the hydraulic power unit by detaching the mounting clips B 2 Starter battery C is now visible First disconnect the negative and then the positive terminal on the battery 3 If you would like to charge the starter battery using an external charger connect the device now Read the instruction manual accompanying the charger If the battery is defective it must be replaced Loosen attachment belt D and remove the battery When replacing the battery make sure that you insert the new battery as shown in the illustration 42
35. luid increases the operating speed of the connected device The hoses and devices are always connected to the connecting block via mono couplings On units with a hose reel only the connection hoses between the hose reel and connecting CAUTION When operating several pieces of rescue equipment with one unit ensure that the usable volume of hydraulic fluid in the reservoir is greater than the maximum possible operating fluid volume of all connected rescue equipment block are screwed in position 5 4 1 Simultaneous mode SIMO control valve This valve enables the connection of two dual acting hydraulic devices The valve allows you to operate two devices simultaneously and independently of one another or supply a larger quantity of hydraulic fluid to one device Supplying a larger quantity of hydraulic fluid increases the operating speed of the relevant device There are three switches available The two smaller switches can be used to depressurize the individual connections The large switch is responsible for controlling the TURBO function 5 4 2 QUAD mode control valve This valve enables the connection of four dual acting hydraulic devices The valve allows you to operate four devices simultaneously and independently of one another or supply a larger quantity of hydraulic fluid to a maximum of two devices Supplying a larger quantity of hydraulic fluid increases the operating speed of the relevant devices The TURBO function can onl
36. n correctly hydraulic fluid continues to leak in a coupled uncoupled state WARNING CAUTION ATTENTION D Never repair couplings they must be replaced with genuine HURST parts Procedure for couplings on the valve block First of all empty the hydraulic reservoir as described in the chapter Replacing the hydraulic fluid Remove the screwed connections on the coupling Remove the couplings and seals underneath Place the new coupling on the valve block together with the seals Secure the couplings again using the screws and tighten these to a torque of M 40 Nm The hydraulic fluid reservoir must then be filled and the unit vented Oo o1 B amp B W NY 44 Procedure for couplings on hose pairs 1 First of all empty the hydraulic reservoir as described in the chapter Replacing the hydraulic fluid 2 Pull the cover back from the couplings CAUTION As the case may be make sure that port T T1 of the hose reel is always connected to port T of the mono coupling 4 Position the new coupling and tighten the union nuts on the hose lines to a torque of M 40 Nm and push the cover back over the couplings 5 The hydraulic fluid reservoir must then be filled and the unit vented 45 12 Troubleshooting In the case of defects which directly affect the motor engine please consult the separate operating instructions of the motor engine manufacturer Electric motor Check
37. of installation All units described in this manual are not explosion proof You can obtain accessories and replacement parts for the rescue apparatus from your authorized HURST dealer CAUTION When selecting a device for connection remember that the maximum possible useable volume of the hydraulic fluid is limited The maximum total volume of hydraulic fluid required by all connected devices must not exceed the maximum possible useable volume of the unit Due to the limited useable volume a maximum of 2 rescue rams can be connected for reasons of safety only at maximum fill quantity Type R424 cylinders are an exception to the rule however Two of these cylinders should never be coupled and operated simultaneously NOTE li Always register your hydraulic power unit on the HURST website This is the only way to guarantee your extended warranty cover You must always contact HURST or an authorized dealer before using couplings from another manufacturer 10 4 Labelling of the units fa oe Coding for Motor variants Specifications hydraulic power e g DHR with units Valve variants with electric starter integral reels Valve variants S Simultaneous mode Q QUAD mode Motor variants E G Electric motor operation via mains supply Gasoline engine 5 Functional description 5 1 General information The hydraulic pump on all HURST hydraulic power units is always operated by a combustion engine or ele
38. of the equipment Hydraulic power unit Have repaired by defective authorized dealer or directly by HURST 49 Fluid escaping Connected Return of the hydraulic Reduce the fill level from the hydraulic device is not yet fluid from the rescue in the hydraulic fluid reservoir in base position device exceeds the fluid reservoir to the and fluid is reservoirs maximum minimum mark move escaping from the quantity when filled the device to base filler screw position and then fill the fluid back up to maximum Fluid leaking from Leak on reservoir Replace defective a different place lines or seals components or have repaired by authorized dealer or directly by HURST Leaking fluid Radial shaft seal Have repaired by between engine on the drive shaft is authorized dealer or and flange bearing defective directly by HURST Hydraulic fluid Water condensation Immediately replace milky and cloudy in the system hydraulic fluid Hose line cannot Pressure too high e g Switch valve block to be coupled caused by excessive _ circulation at static ambient temperature pressure Coupling defective Coupling must be replaced immediately Impossible to Carrying handles are Unlock carrying handles retract or extend still locked and extend carrying handles Carrying handles or Replace the carrying frame defective handles or frame Impossible to lock Carrying handles or Replace the carrying or unlock carrying frame de
39. r rolling up and unrolling The unit is connected to the working equipment via couplings CAUTION In order to avoid potential losses in pressure the length of the extension hose lines must not exceed 30 m NOTE Only 2 of the 4 connections can be connected to the hose reel on type JL QG units There are 2 coupling connections located between the two reel drums for the remaining two connections The lower of the two connections is extendable to allow easier coupling It also engages easily in the end positions The switches and connections are labelled to make them easier to assign to one another 5 9 Carrying handle HURST hydraulic power units can be fitted with optional carrying handles The units can be transported more ergonomically using the carrying handles 5 10 Toolholder HURST hydraulic power units with a hose reel could be fitted with a Toolholder The Toolholder is usually designed to attach a spreader and a cutter Needless to say it is possible to adapt the mount to accommodate all HURST cutters and spreaders as well as modify it at a later date The Toolholder allows you to transport a unit with devices still attached You no longer have to detach and store devices separately after use You only have to wind the hose lines onto the reels and position the devices on the Toolholder again Devices secured to the unit do not pose a risk during transport 16 6 Connection of the hose lines devices CAUTION
40. re special training but knowledge on operating the unit statutory safety regulations and handling all the necessary tools are basic requirements CAUTION Do not exert excess force when performing maintenance work on the unit as this may damage components or compromise the operational safety of the unit Due to the complex design repair work on the actual hydraulic power unit must always be performed by the equipment manufacturer personnel trained by the equipment manufacturer or authorized HURST dealers WARNING CAUTION ATTENTION During maintenance and repair work it is essential to wear protective clothing since equipment can still be pressurized even when it is not in operation During the work ensure that all components are particularly clean since dirt can damage the unit 36 D CAUTION Since HURST hydraulic power units are designed for top performance only those components in the spare parts lists of the relevant unit may be replaced Further components in the unit may only be replaced if you have taken part in appropriate HURST service training you have the express permission of HURST Customer Service after request verification that permission may be granted Verification required in each individual case When cleaning units and equipment note that no cleaning agent may be used that has a pH value outside the range 5 8 CAUTION Attention must be paid to ensuring that no operating fl
41. reservoirs filled CAUTION Always fill fuel and hydraulic fluid into the correct reservoir otherwise the unit may sustain damage 2 On hydraulic power units with an electric motor connect the plug to the power supply at this point 3 Then vent the hydraulic power unit Set all levers on the control valves to the neutral position see chapter Operation The actual venting is carried out in the units in a different manner depending on the drive motor a Gasoline engine Detach all connectors from the sparking plugs on the back of the unit Slowly turn the engine over with the starter rope several times Then replace the sparking plug connector b Electric motor mains power operation Switch the motor on and then off again after approx 10 seconds repeat this procedure several times Before switching back on the motor must be at a standstill 19 This procedure means that the pump can slowly draw fluid in and be well vented The hydraulic fluid reservoir is equipped with automatic venting which means no further venting measures are required 4 Check the fluid levels in the reservoirs again If necessary top off the fluid 5 To conclude you can now connect the extension hoses and or hose reels unless already connected to the unit and or couple the rescue equipment 8 Operation CAUTION T The control levers on the hydraulic power unit must be shifted to neutral position before the motor engine is s
42. se lines defective Replace hoses escaping from hoses damaged the connections Screwed Hose lines or male Tighten the screwed between the connection on the couplings not tight connections on the hose connection hoses hose lines tight enough lines or male couplings and reel shaft Leak between Male coupling not tight Tighten screwed male coupling enough connection and shaft Seal between male Replace seal coupling and shaft defective Male coupling Replace male coupling defective Connection Seal between hub and Repair of fault by between hub and shaft defective authorized dealer shaft leaking specially trained HURST staff or directly by HURST If it isn t possible to rectify the malfunctions inform an authorized HURST dealer or the HURST customer service department immediately The address for the HURST customer service department is HURST JAWS OF LIFE HALE PRODUCTS 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 52 13 Technical data Because all values are subject to tolerances there may be small differences between the data for your device and the data in the following tables The values may also differ because of reading inaccuracies and or tolerances in the measuring equipment used NOTE The following tables contain only the technical data required for standard acceptance A
43. sories e g toolholders and as a means of transporting the unit by the frame itself or the optional carrying handles The starter equipment and accelerator cable regulator on units with a combustion engine are mounted on the frame or side parts 5 7 Connection to the rescue equipment Connection with the rescue equipment is via extension hose pairs or hose reels These are available in various lengths and colored bend protections Different colors distinguish the individual hose lines in a hose pair For specific details please consult the HURST range of accessories or contact your HURST dealer 15 5 8 Hose reels The hose reels were designed to store extension hose pairs leading between the hydraulic supply and the working equipment hose pairs are included in the delivery as standard The extension hose pairs are connected to the hose reels and rolled onto the drums A hose reel with extension hose pairs can cover long distances between the hydraulic supply and the working equipment allowing you to keep the hydraulic power unit on a vehicle for example The possibility of rolling up and unrolling the hose allows you to adapt the hose length accordingly and reduce the amount of unnecessary or potentially dangerous excess hose lying on the ground The extension hose pairs are easier to transport and store when fully rolled up Moreover the hose reels on the hydraulic power units are equipped with a hose guide that facilitates easie
44. tarted to prevent connected hydraulic equipment from moving unexpectedly Levers on units with a Toolholder should only be shifted back after you have removed the devices from the mount and intend to start work 8 1 Starting the motor engine 8 1 1 Gasoline engines Before starting the combustion engines check that the fuel tank is full and that the engine oil level is within the permitted tolerances If necessary top off the relevant fluid Starting procedure 1 Set the engine switch to the CHOKE position if the engine is already warm or the ambient temperature is high start the engine with the switch in the ON position 2 Starting with electric starter Press the starter button Starting with pull cord starter Slowly pull the handle on the pull cord starter beyond the compression point resistance is felt Allow to return to the starting position and pull again quickly all the way out NOTE lil If the engine refuses to start after several attempts repeat the procedure described above with the engine switch set to the ON position 3 When the engine starts keep hold of the handle on the pull cord starter and allow it to return to its starting position 4 Allow the engine to warm up for 20 to 30 seconds and then set the engine switch to the ON position if previously set to CHOKE 20 8 1 2 Electric motors Before starting the electric motors check that all electrical connections and c
45. ted in addition to the operating instructions WARNING CAUTION ATTENTION The device is to be used exclusively for the purpose stated in the operating instructions see chapter Intended Use Any form of use beyond this is not considered intended use The manufacturer supplier is not liable for any resulting damages The user bears sole responsibility for such use Observance of the operating instructions and compliance with the inspection and maintenance conditions are covered by the definition of intended use A Never work when you are overtired or intoxicated A WARNING CAUTION HURST BLUE hydraulic fluid is a custom blended fluid In case of skin contact wash off with soap and water In case of eye contact flush with generous amounts of running water for at least 15 minutes If discomfort persists following flushing see physician for symptomatic treatment 3 Intended use HURST hydraulic power units are specially designed to supply HURST rescue equipment with hydraulic fluid so that this equipment can be used to rescue victims of road rail or air traffic accidents as well as from buildings Their use for supplying pressure fluid to rescue equipment of other manufacturers is possible yet requires the technical inspection and approval by HURST in each individual case WARNING CAUTION ATTENTION Always_observe the safety notes of these operating instructions with regard to place of installation and type
46. to roll up To use the crank handle pull lever B fold outwards through 90 and release so that it engages To fold away the crank handle pull lever B fold inwards through 90 and release so that it engages 8 5 3 Unrolling Pull the extension hose pair until the required length has unrolled from the hose reel CAUTION Release the locking brake on the hose reel beforehand to avoid damaging the reel and the pair of hoses When unrolling the hoses make sure that nobody is standing within the movement range of the crank handle 24 8 5 4 Rolling up lil NOTE We recommend using the crank handle to roll up the hoses Fold out the crank handle Check that the locking brake on the double hose reels is released Align the reels so that the unrolled hoses are rolled up in a straight line You will find that the hoses roll up more easily You can now roll up the pair of extension hoses by turning the crank handle Make sure that the direction of rotation is always the same as shown in the illustration Direction of rotation Make sure that the pair of extension hoses is always rolled up correctly onto the hose drum We recommend guiding the pair of extension hoses with your hand during the rolling process You must always guide the pair of hoses in a perpendicular direction to the reel axis because of the hose guide attached to the hose reel You must then apply the locking brake on the double hose reels
47. uids can escape from units with combustion engines during repair work 11 2 Maintenance work on the hydraulic power unit 11 2 1 Cleaning instructions The outside of the device must be cleaned from time to time not the electrical contacts and the metallic surfaces not the electrical contacts treated with a suitable agent to protect against corrosion In case of doubt contact your authorized HURST dealer or HURST directly 11 2 2 Function and load test If there is any doubt regarding the safety or reliability of the equipment a function and load test must also be performed HURST offers appropriate test equipment 11 2 3 Replacing the hydraulic fluid Replace the hydraulic fluid once a year at the latest The fluid should be replaced when it is warmed up The motor must be switched off The old hydraulic fluid must be disposed of properly 37 Procedure 1 Place the unit on a slightly raised base so that the drain screw for the hydraulic fluid is easy to access 2 Place a suitable container under drain screw A 3 Open reservoir fill cap B remove drain screw A and seal ring C and allow the hydraulic fluid to drain into the container provided 4 Refit components A and C in the reverse order 5 Fill fresh hydraulic fluid into the reservoir through the filler neck and then close off the neck with fill cap B 6 Finally the unit must be vented as described in the chapter entitled Start up 11
48. witched off during refuelling Procedure 1 Open the fill cap on the fuel tank 2 Fill the tank with fuel up to the maximum mark WARNING CAUTION ATTENTION Make sure you do not spill any fuel If fuel comes into contact with hot engine components in particular there is a risk it may ignite and start a fire If fuel is spilled by accident it must be cleaned up immediately using a suitable absorbent cloth Make sure you do not burn yourself on hot engine components The cloth used to absorb the spilled fuel must then be washed and disposed of according to applicable regulations and guidelines 3 Replace the fill cap on the fuel tank again correctly 8 4 Controlling the valves CAUTION T The control levers on the hydraulic power unit must be shifted to neutral position depressurized before the motor engine is started to prevent connected hydraulic equipment from moving unexpectedly 8 4 1 Simultaneous mode SIMO control valve Three levers are located on the connecting block of this valve Each of the two small levers is assigned to a pressure port Actuating the respective lever regulates the pressure in the corresponding pressure hose or depressurizes the connection ET There is also a large lever that controls the TURBO function Shifting the lever to the relevant position allows you to supply double the quantity of hydraulic fluid to one of the two connections In order to activate the TU
49. y be connected between the points either side of the large switch because the device connections are linked internally There are six switches available The four smaller switches can be used to depressurize the individual connections The large switches are responsible for controlling the TURBO function The switches and connections are labelled to make them easier to assign to one another 14 5 5 Pumps HURST hydraulic power units are equipped with a double flow or four flow pump depending on the type The pumps are permanently connected to the connecting block Double flow pump for operation with SIMO valve Four flow pump for operation with QUAD valve The pumps used are always equipped with two pressure levels for each pump capacity one low pressure and one high pressure level Low pressure level LP up to 14 MPa 1 MPa 10 bar High pressure level HP up to 35 MPa The changeover from low pressure to high pressure is carried out automatically in the pump The maximum pressure is limited by a pressure limiting valve WARNING CAUTION ATTENTION For reasons of safety the pressure set on this valve must not be adjusted Q without direct authorization from HURST 5 6 Frame with side parts A surrounding frame is fitted to all the hydraulic power units described here without exception The frame and the side parts are designed to protect the unit from external influences e g dirt damage etc to attach acces
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