Operation Manual/ Spare Parts List/Accessories High Pressure Fire Extinguisher OERTZEN HDL 250 WS 1/06

Transcription

1 Operation Manual/ Spare Parts List/Accessories High Pressure Fire Extinguisher OERTZEN HDL 250 WS 1/06 von Oertzen GmbH Ferdinand-Harten-Str Ammersbek/Germany Tel Fax

2 Table of Contents 1. Introduction page 3 2. Safety Instructions pages Configuration/Operation pages Illustrations pages Mounting/Start-up/Shut-down pages Maintenance and Care pages Trouble Shooting page Technical Data page Declaration of Conformity page 26 HDL250-ag-01/06-AG-1/06 2

3 1. Introduction The HDL 250 is a most effective high pressure fire extinguisher. OERTZEN fire extinguishers and accessories conform to relevant national and European Safety standards which is guaranteed by the CE-symbol. The HDL 250 WS has obtained the type approval of the German inspection authority in charge Institut der Feuerwehr Nordrhein-Westfalen, certified under No. P3-1/01 by the Ministry of the Interior (certificate is available on request). The operating manual to be made available to the operating personnel and should be read completely before initial start-up. We expressively point out that OERTZEN cannot be held responsible for any damage or malfunction occurring as a result of disregarding this operating manual. The high pressure fire extinguisher to pass an annual safety inspection, in order to guarantee proper functioning and safe operation. Results to be recorded in written form and to be made available to authorities on request. The packing materials (plastic foil, wood, cardboard boxes, nails etc.) are potentially dangerous, should be kept away from children and disposed according to environmental requirements. This symbol appears in the operating manual at any part dealing with the fulfilment of rules and regulations in order to avoid risks for the personal entirety. This symbol appears in the operating manual at any part dealing with the fulfilment of rules and regulations in order to avoid damage on the machine and to ensure trouble-free operation. This warning symbol appears in the operating manual at any part dealing with risks due to electric power. This operation manual is subject to technical alteration. All rights reserved. Any use in other than legally authorised cases requires the prior written approval of ARNDT H. von OERTZEN (GmbH&Co). 3

4 2. Safety Instructions The following instructions to be followed before, during and after work: This instruction manual to be read completely before initial start-up. If strictly followed, no danger should occur. This machine must only be run by qualified adult persons (firemen) who are fully familiar with possible risks. Directives for Liquid Blasters (ZH 1/406) and operation instructions Working with Liquid Blasters (BGV D 15) as well as instructions of the fire-brigade to be followed. The machine is not suitable for unattended operation and must be operated according to specification. Protective clothing to be worn. The water jet emerging from the spray pistol has a dangerous cutting effect. Therefore the water jet must never be directed onto persons, animals or electrical installations in a distance of less than 1 m. It must never be used for cleaning of clothes, footwear and the like. Be aware of torque and recoil. Ensure stable foothold. The max. allowed pressure which is stated on the type plate must not be exceeded. The safety/control valve opens, if the max. operating pressure is exceeded by more than 10 % and returns the water back into the suction side of the high pressure pump. The safety/control valve is workshop-set and sealed. Adjustment must not be changed. Indoor operation of combustion engines is forbidden, unless proper ventilation and exhaust gas evacuation is guaranteed. Carbon monoxide is lethal. Unsuitable respectively defective high pressure hoses often cause severe accidents during operation. Therefore high pressure hoses to be carefully inspected before start-up and replaced by original OERTZEN equipment in case of damage. Use of other than original OERTZEN equipment results in expiration of the EC Declaration of Conformity, as well as of product liability and warranty. Used or damaged high pressure hoses must never be repaired and reused but to be replaced by original OERTZEN equipment. Extinguishing pistols with delayed closing mechanism must not be used because of risk of injuries. Lever in open position must never be blocked or fixed in any way. Use of extinguishing pistols of less than 750 mm length is prohibited. The machine must not be run in areas jeopardized by fire or explosions. During operation at filling stations Technical for flammable liquids (TfbF) to be observed. Consumables to be handled throroughly according to technical rules; safety and environmental regulations to be observed. When opening the machine in case of malfunctions or emergency, switch off by means of the ignition switch. 4

5 Secure the machine against moving. It is equipped with a parking brake which must be set during working. During loading hoisting device to be fastened properly at jack rings. Ensure balanced load distribution. Repair work in the high pressure section of the machine (pump, hoses, piping) only to be carried out by qualified personnel. Exhaust gas evacuation area is getting hot. Do not touch! After work the machine to be locked and secured against unauthorized/accidental operation by means of the safety lever at the extinguishing pistol. Minimum extinguishing distance for electrical installations is 1 m. Only to be used up to max V. Only foam agents approved by OERTZEN to be used. Keep away from eyes. Never unreel extinguishing hose while hand crank is swung out. Keep your hands out of the working area of the hand crank. Keep a safety distance and take care that clothes cannot be clutched by the crank. In foam no breathing possible risk of suffocation. Use of equipment and/or consumables which is not delivered or expressively approved by OERTZEN results in expiration of the EC Declaration of Conformity, as well as of product liability and warranty. This operation manual describes the operation of the HDL 250 WS basic design. If OERTZEN FIRE-TEC accessories are used, refer to extra manual which is attached hereto. 5

6 3. Configuration/Operation The high pressure fire extinguisher HDL 250 is an electrically independent machine to extinguish class A and class B fires by means of water atomised under high pressure with the option of foam agent dosing. The extraordinary efficiency of the high pressure fire extinguisher results from the atomisation of the water at a working pressure of up to 250 bar. By atomisation the surface of the water respectively foam agent solution is extremely extended so effecting a rapid evaporation. The high extinguishing efficiency is based on the synergetic effect of heat extraction from the fire by evaporation and reduction of the oxigen concentration by the steam. A significant advantage is the fact that damage caused by water is practically avoided. The high pressure extinguishing hose is steel-reinforced, heat resistant, extraordinarily light, flexible and so easily manoeuvrable. It allows the rapid fire-attack in a distance of 50 m from the HDL. The fire assault device allows the quick roll-over from high pressure water mist to heavy foam to high pressure net water mist, as required. Depending on requirements at site the following extinguishing options are available: Model HDL 250 WS Extinguishing Agent Fire Class A Fire Class B - high pressure water mist -/- - high pressure net water mist - high pressure net water mist - heavy foam - heavy foam The high pressure fire extinguisher HDL mainly consists of a low speed high pressure inline plunger pump which is driven by a low emission four stroke V- motor. The motor is protected against dry-running by a low oil level cut-out which stops the motor in case of low oil level. The water is directed via filling valve with strainer into the vented water storage tank, where it is taken via an Y-filter from by the high pressure pump which boosts it together with the diameter of the respective extinguishing nozzle up to required working pressure. A safety control valve is arranged downstreams of the high pressure pump, which opens as soon as the operating pressure is exceeded by more than 10 % and returns the water which cannot be taken by the nozzle back into the suction line of the high pressure pump. Depending on requirements at site, the support roll-over handle at the extinguishing device allows the quick roll-over from high pressure water mist to foam/high pressure net water mist (fire class A/B) at opened foam dosing valve. 6

7 The machine is equipped with a circulation shut-off system and additionally with a thermovalve, in order to protect the high pressure pump against overheating. After closing the extinguishing pistol, the safety/control valve opens and returns the circulating water into the suction line of the pump. If the water temperature in this operating condition exceeds 60 C, the thermovalve opens, releases hot water and in parallel allows small amounts of cold water to enter. When opening the extinguishing pistol again, adjusted working pressure is generated immediately so that extinguishing can be continued without delay. The HDL 250 is available in the following standard versions: Fixed installation: Installation module with 125 l water storage tank, foam agent supply from external tank. Mobile version: Mobile unit on wheels with 125 l water storage tank, hoop guards, installation fittings for DIN foam agent tank 20 l. Foam agent supply from external tank. Tailor-made versions to meet special requirements are available on request. The range of applications can be extended by a variety of accessories available from OERTZEN Fire-Tec. Contact your local distributor. 7

8 4. Illustrations 1. Motor 2. High pressure plunger pump/gear 3. Frame with vibration dampers/wheels (depending on design) 4. Pressure gauge 5. Water inlet with strainer 6. Operating panel 7. Ignition key (2 pcs) 8. Choke adjustment 9. Gas pedal 10. Reverse starter for emergency 11. Dosing valve foam agent 12. Pressure regulating valve ( bar) 13. Hand crank for hose reel 14. Exhaust deflector (is getting hot do not touch!) 15. Type shield 16. Fuel tank 5 l 17. Brake/hose reel lock (manual design) 18. Thermovalve 19. Extinguishing pistol 19.1 Safety lock of extinguishing pistol 20. Holder for extinguishing pistol 21. High pressure extinguishing hose 22. Hose swivel 23. Stop valve for extinguishing pistol 24. Swivel/hand nut for extinguishing device 25. Changeable ball valve 26. Support and roll-over-handle for high pressure water/foam 27. Foam pipe (DUPLEX extinguishing nozzle) 28. Nozzle tube with atomisation nozzle Nozzle tray TRIPLEX extinguishing nozzle 31. Symbols TRIPLEX extinguishing nozzle 32. Marks TRIPLEX extinguishing nozzle 33. ON/OF switch electric hose reel (if installed) 34. Motor of electric hose reel (if installed) 35. Water tank 125 l (version WS) 35.1 Foam agent tank (on option) 36. Hose reel with roller window 8

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12 5. Mounting/Initial Installation The HDL 250 to be mounted workmanlike in a way that all components can easily be reached. The fire assault device to be easily accessible and the hose to be quickly reeled-off. The safe exhaust evacuation to be ensured (as a standard in the fixed installations the exhaust evacuation is arranged from the side to the front on the left). There are various exhaust evacuation designs available for the fixed installations, in order to meet all structural requirements. The machine to be mounted by bolting the vibration dampers onto the vehicle structure. The vibration dampers prevent vibrations of the machine from being transferred to the vehicle. Take care that machine components will not hinder e.g. the vehicles blinds to be moved. If, in order to save weight, the machine not to be started by its own battery but by the vehicle s battery, correct polarity, dimension and installation of power cables to be guaranteed (power requirements: 12 V). If the water supply to be done from an external water storage tank as per Fig. 1, the supply lines to have an inside diameter of 25 mm and to be suction resistant. In order to allow easy reeling up the high pressure hose, sufficient clearance for the hand crank of the hose reel (approx. 200 mm) to be provided. Sufficient headroom to be provided to allow filling of the water tank via the D- connection. In order to avoid germ formation/biological growth in the water storage tank the water to be mixed with a disinfectant, e.g. Desalgin make BAYROL (5 ml/125 l of water). ATTENTION: Only tap water to be used! 12

13 Start-up/Shut-down Read operating manual and motor manufacturers instructions carefully and completely. First Steps: In order to guarantee proper function and trouble-free operation, the following checks to be carried out before start-up: General condition of the unit (connections, gaskets, etc.). Fill water storage tank and foam agent tank. Fill fuel tank (min. 85 octane). High pressure hoses, hose pipes, whether damaged. Air supply, fresh air grill must not be covered. Correct oil level of high pressure pump (sight glass/dip stick), reduction gear (sight glass/dip stick) and motor (dip stick). Only oil qualities approved by OERTZEN to be used: High pressure pump and reduction gear: OERTZEN OSP special pump oil; motor: OERTZEN OSM special motor oil. Pump/pump connections whether leaking. Machine only to be run with absolutely clean water. Before connecting the water supply hose, rinse it thoroughly. Depending on feed water quality, regularly check water filter in short intervals, replace if needed. Machine only to be run horizontally (+/- 20 ). Machine must under no circumstance be run with disconnected battery, otherwise severe damage may be the result. In order to extend the lifetime of the motor, warm it up upon start-up. After work let it run out to cool it down. In order to guarantee proper function and trouble-free operation, the following checks to be carried out during working: Observe pressure variations. Observe excessive exhaust gas formation. Observe leaks at high pressure pump, hose pipes, connections. Observe level of water storage tank and foam agent tank. Observe unnormal noise. In case of malfunctions immediately stop machine, eleminate cause according to chapter Trouble Shooting, call qualified service. 13

14 Operation This operation manual describes the operation of the HDL 250 WS basic design. If OERTZEN FIRE-TEC accessories are used, refer to extra manual which is attached hereto. Determine fire class at foam agent dosing valve (11) Vertical position class A Horizontal position class B Start motor as follows Observe motor manufacturer's instructions: In order to ease starting of motor, put fire assault device into position "foam" and open extinguishing pistol for depressurisation purposes. Start procedure cold motor electric start Pull out choke (8) completely. Put gas pedal (9) upward as far as possible (full load). Open extinguishing pistol. Turn ignition key (7) clockwise into position "START", so that motor starts. Starter only to be activated for max. 10 seconds to avoid damage. Choke to be pushed in slowly in order to avoid that the motor dies down. Start procedure warm motor electric start Do not pull out choke (8). Put gas pedal (9) upward to load. Open extinguishing pistol. Turn ignition key (7) clockwise into position "START", so that motor starts. Starter only to be activated for max. 10 seconds to avoid damage. As soon as motor has started, put gas pedal (9) into position full load. Motor is additionally equipped with a reverse start for emergency which is started as follows: Adjustments as described above for cold/warm starting procedure as well as for after starting of motor. Start procedure reverse start Turn ignition key clockwise into position "1". Take handle and carefully pull out until engagement, then strongly pull out in order to start motor. Put handle back into initial position. If the motor in operational state and at correct oil level does not start after several attempts, most likely the oil pressure is poor. In this case disconnect the cable of oil pressure switch (at the male threaded flange of the motor oil filter) upon start-up. As soon as the motor has started, cable of oil pressure switch to be reconnected, as otherwise the low oil level cut-out is out of function. 14

15 Extinguishing with DUPLEX Fire Assault Device (Standard) By turning the DUPLEX fire assault device the following extinguishing modes are possible: Fire Class A: Spray mode (high pressure water mist or, by adding foam agent, net water mist). Fire Class B: Heavy foam (8-fold expansion rate), particularly for fire class B to cover glowing fires. The fire assault device to be turned to required mode at closed extinguishing pistol only. High Pressure Extinguishing Hose on Stand-by Release brake/hose reel lock (17), take extinguishing pistol out of its holder. Slowly unreel extinguishing hose as far as required. Set brake/hose reel lock (17). Electric Hose Reel (optional): Turn switch (33) into position -V-, reel off. The reel is stopped automatically by releasing switch (33) (returns into position -0-). When opening the extinguishing pistol, be aware of recoil. Never direct extinguishing jet onto persons or animals. Minimum extinguishing distance 1m. Only to be used up to 1000 Volt. Fire Class A Spray Mode (Burning Solids) Unlock stop valve on extinguishing pistol (23). Turn support/roll-over handle (26) downward If required, foam agent can be added to extinguishing jet by activating the foam dosing valve (11). Release extinguishing pistol, extinguish fire by means of the spray beam emerging from the atomisation nozzle from bottom to top. Keep safety distance. Fire Class B Heavy Foam Mode (Burning Liquids) Unlock stop valve on extinguishing pistol (23). Turn support/roll-over handle (26) upward Release extinguishing pistol, extinguish fire by means of the foam emerging from the foam nozzle, respectively cover fire with foam. Keep sufficient distance in order to avoid spreading of the fire. Spray Mode Spray Distance effective Extinguishing Distance Spray 10 m 0,5 3 m Foam 10 m 0,5 7 m 15

16 Extinguishing with TRIPLEX Fire Assault Device (Option) By turning the TRIPLEX fire assault device the following extinguishing modes are possible: Fire Class A: Throw or spray mode (high pressure water mist or, by adding foam agent, net water mist). Fire Class B: Heavy foam (8-fold expansion rate), particularly for fire class B to cover glowing fires. The fire assault device to be turned to required mode at closed extinguishing pistol only. The marks (32) on the nozzle tray will ease orientation. High Pressure Extinguishing Hose on Stand-by Release brake/hose reel lock (17), take extinguishing pistol out of its holder. Slowly unreel extinguishing hose as far as required. Set brake/hose reel lock (17). Electric Hose Reel (optional): Turn switch (33) into position -V-, reel off. The reel is stopped automati-cally by releasing switch (33) (returns into position -0-). When opening the extinguishing pistol, be aware of recoil. Never direct extinguishing jet onto persons or animals. Minimum extinguishing distance 1m. Only to be used up to 1000 Volt. Fire Class A Throw Mode (Burning Solids) Long distance booster nozzle to extinguish fire with excessive heat radiation. Unlock stop valve on extinguishing pistol (23). Turn marks (32) on nozzle tray (30) upward (symbol "THROW") If required, foam agent can be added to extinguishing jet by activating the foam dosing valve (11). Release extinguishing pistol, extinguish fire by means of the extinguishing jet from bottom to top. Keep safety distance. Fire Class A Spray Mode (Burning Solids) Unlock stop valve on extinguishing pistol (23). Turn marks (32) on nozzle tray (30) counter-clockwise (symbol "SPRAY") If required, foam agent can be added to extinguishing jet by activating the foam dosing valve (11). Release extinguishing pistol, extinguish fire by means of the extinguishing jet from bottom to top. Keep safety distance. Fire Class B Heavy Foam Mode (Burning Liquids) Unlock stop valve on extinguishing pistol (23). Turn marks (32) on nozzle tray (30) clockwise (symbol "FOAM") Release extinguishing pistol, extinguish fire by means of the foam emerging from the foam nozzle, respectively cover fire with foam. Keep sufficient distance in order to avoid spreading of the fire. Spray Mode Spray Distance effective Extinguishing Distance Throw 15 m 2 7 m Spray 10 m 0,5 3 m Foam 10 m 0,5 7 m 16

17 In case of temperatures below freezing point, particularly note: The low amounts of water in the high pressure hose may freeze and damage the machine. Therefore work should not be interrupted unless fire is extinguished. In order to guarantee readiness for use in case of frost during fire watch a continuous low water flow should be ensured as follows: Motor to be in idle running mode Foam agent dosing valve (11) to be closed (vertical position). Pump pressure to be reduced to a minimum by turning the pressure regulating valve (12) counter-clockwise. Stop valve extinguishing pistol (23) to be opened, so allowing a low water flow emerging out of the atomisation nozzle (28) at low pressure. Ensure sufficient water supply. After work Foam agents are corrosive. Residues have therefore to be flushed out of the system as follows (keep in sequences): Start motor and keep it running at moderate speed. Remove foam agent suction hose from foam agent tank and put it into a vessel with clean water. Open foam agent dosing valve (11) so that the hose will be flushed with water. Turn support/roll-over handle (26) downward, open stop valve on extinguishing pistol (23), so that the liquid emerges from the atomisation nozzle (28). Close stop valve on extinguishing pistol (23) after 10 seconds and alternately open and close it approx. 10 times so that pump, hoses and valves are cleaned from foam agent residues. Open stop valve on extinguishing pistol again and keep water running out of the atomisation nozzle (28) for 30 seconds so that the complete pipe system is cleaned from foam agent residues. Afterwards, close stop valve on extinguishing pistol, turn support/ roll-over handle (26) into position foam, open stop valve on extinguishing pistol for a few seconds so that the foam nozzle is cleaned from foam agent residues. Close foam agent dosing valve (11). Run motor in idle running mode for 2 minutes. Stop motor. Release extinguishing pistol (23) in order to de-pressurise the system. In order to avoid germ formation/biological growth in the water storage tank the water to be mixed with a disinfectant, e.g. Desalgin make BAYROL (5 ml/125 l of water). 17

18 Final Steps Lock stop valve (23) of extinguishing pistol in order to avoid accidental activation. Carry out frost protection as described before. Place high pressure extinguishing hose in a straight line and check for damage. For cleaning purposes pull high pressure hose through a moist cloth during reeling up. Swing in hand crank (13), push it through the axle as far as possible in order to avoid blockage during next reeling up. Lock hand crank (17) with T-screw. Put extinguishing pistol (rapid-attack-device) (19) into holder (20) and lock it. Never unreel extinguishing hose while hand crank is swung out. Keep your hands out of the working area of the hand crank. Keep a safety distance and take care that clothes cannot be clutched by the crank. Prepare machine for next action (see Maintenance and Care ). 18

19 6. Maintenance and Care Any machine is only as reliable as maintenance is carried out. The following maintenance work to be carried out in regular short intervals: If maintenance is not carried out according to below mentioned instructions, warranty will expire. Checks to be carried out after work: Check general condition of the machine (connections, seals, etc.) Check water strainer and replace if necessary. Check water tank, clean and refill, if necessary. Fill fuel tank with petrol (min. 85 octane). Check high pressure hose for damage and replace, if needed. Air supply/fresh air grill must not be covered. Check oil levels of motor, reduction gear and high pressure pump. Check pump/pump connections whether leaking. Disconnect extinguishing pistol at the swivel and slightly lubricate pivot and seal rings. Reconnect extinguishing pistol hand tight by means of the hand nut. Maintenance Work in Four Weeks Intervals: Oil change motor/reduction gear/pump needed (operating hours)? Individual checks as per After Work. Battery maintenance as per manufacturer s instructions. Check acid level every week, refill distilled water, if needed. Maintenance Work every Year: Only OERTZEN OSM special motor oil to be used for the motor, otherwise warranty will expire. Further maintenance instructions on motor are laid down in motor manufacturer s manual. High Pressure Pump First oil change after 50 operating hours. Further oil changes minimum every year. 19

20 Reduction Gear Oil changes minimum every year. Only OERTZEN OSP special pump oil to be used for the reduction gear and the high pressure pump, otherwise warranty will expire. Fuel Tank Contents of fuel tank to be changed every year. Flush tank. Never store fuel in open vessels. Never use matured fuel. Further Important Notes: Readiness for Use If maintenance instructions laid down in this manual are disregarded, readiness for use is not guaranteed. Warranty Warranty will expire in case of misuse of the machine, incorrect handling and operation, poor maintenance. 20

21 Frost Protection I. High Pressure Pump / Suction Line Frost protection of the entire water system is of vital interest, as otherwise heavy damage and serious risks during operation will be the result. The best frost protection method is to store the machine in a frostprotected area. If the unit will be exposed to freezing temperatures during transport/storage and there is a risk that high pressure pump and/or suction line will freeze, carry out frost protection as follows: a. Fill approx. 10 l consisting of a 2 : 1 mixture of water and a commercial anti-freeze (e.g. Glysantin) in a separate vessel and feed it into the system via the high pressure pump (5). b. Losen swivel (24) on extinguishing pistol (23) and remove fire assault device. c. Start motor and let run at low speed, adjust pressure regulating valve (12) to a low value (counter-clockwise). d. Open stop valve (23) so allowing the high pressure pump to suck in the anti-freeze. As soon as the anti-freeze emerges from the extinguishing pistol, the emerging stream to be directed into the anti-freeze vessel (Frost Protection II: into the water tank filled with anti-freeze liquid) so that the anti-freeze liquid is circulating through the system. f. Open and close the stop valve (23) 10 times so that the entire pump system is filled with the anti-freeze liquid. g. Keep anti-freeze liquid in circulation for further 2 minutes, then stop motor. De-pressurise high pressure section by releasing the stop valve on extinguishing pistol. Re-connect high fire assault device with extinguishing pistol, reel up high pressure hose, lock hose reel, lock stop valve of extinguishing pistol, insert and lock extinguishing pistol into holder (20). 21

22 Frost Protection II. High Pressure Fire Extinguisher/Water Tank If the unit with full water tank will be exposed to freezing temperatures during transport/storage, there is a risk that the entire unit will freeze. Frost protection can be carried out by adding calcium chloride scales CaCl 2 77/80 %, however the following limits to be observed: Foam agent AFFF 3 % is most suitable for extinguishing class A and B fires. If CaCl 2 is added, be aware that foam expansion rates at decreasing temperatures will significantly drop. Better results are achieved when using AFFF 1 % at higher concentration instead. Fire extinguishers which are frost-protected by means of CaCl 2 must not be used to extinguish burning electric installations/cables, due to risk of electric shock. Calcium chloride scales 77/80 % CaCl 2 are available locally. For further details contact the manufacturer of the fire extinguisher. We will provide detailed frost protection instructions on request. 22

23 7. Trouble Shooting Malfunction Cause Remedy 1. Motor (1) does not start. a) incorrect fuel mixture. b) fuel tank empty. c) battery exhausted d) fuel filter clogged. e) oil level low Pull choke (8) Fill tank. Charge battery Replace filter, flush tank. Refill oil. 2. Motor dies down during warm-up. 3. Motor breakdown during operation. a) incorrect fuel mixture. b) cause as per 1 a), 1 d) 1e). a) cause as per 1 a), 1 d) 1 e). Slowly push in choke (8). Remedy as per 1 a), 1 d) 1 e). Remedy as per 1 a), 1 d), 1 e). 4. Pressure varies. a) Low water level. b) Strainer (5) clogged. c) Air sucked in by foam agent dosing valve d) Pressure regulating valve adjustment incorrect e) Motor at low speed Fill water tank. Clean strainer (5). Properly put foam agent suction hose into foam agent tank. Adjust valve correctly. Put gas pedal (9) into position Full Load. 5. No foam generation. a) cause as per 4 c), 4 d) 4 e) b) combined roll-over valve into position foam Remedy as per 4 c), 4 d) 4 e) Close extinguishing pistol (23), turn support/roll-over handle (26) into position foam. Open extinguishing pistol. NOTE: The change from high pressure water mist to foam takes approx. 8 seconds with 50 m hose. 23

24 8. Technical Data Technical Data Fixed Installation/ Mobile Version HDL 250 WS Flow rate max. Unloading pressure Working pressure max. Driving power (HP/kW) Reduction gear/reduction ratio Tank volume (standard) Low oil level cut-out Starter (standard) Emergency start Dimensions/space requirements (L x H x H) - Fixed installation with tank - Mobile version with tank Gewichte (netto) mit Hochdruck-Löschschlauch Standardlänge - Fixed installation with tank 125 l (empty/in operation) - Mobile version with tank 125 l (empty/in operation) Recoil Noise level Lp / Lw (according to DIN ISO 3744) Foam Agent Foam agent dosing rate Operating temperature range The values stated are approximate values which can slightly deviate from real ones. Further Design Features: High Pressure Extinguishing Hose: High pressure extinguishing hose DN 8, standard length with manual hose reel. Specification High Pressure Extinguishing Hose: Outside diamenter 15 mm Unloading pressure: 600 bar Test pressure: 900 bar Burst pressure: > 1600 bar Weight: 0,39 kg/m Materials outer layer: Hypalon Extinguishing pistol: Löschvorsatz: DUPLEX fire assault device (standard) TRIPLEX fire assault device (option) servo-assisted, max. 330 bar 25 l/min. 280 bar 250 bar 18 HP/13,2 kw 2,2 : l standard electric start reverse start 980 x 560 x 960 mm 1225 x 760 x 1100 mm 153/278 kg 173/298 kg 94 N 81/93 db(a) AFFF ca. 3 5 % 0 50 C Consumables: Motor: Reduction gear: High pressure pump: Fuel tank: 1,65 l OERTZEN special motor oil OSM Part No ,28 l OERTZEN special motor oil OSP Part No ,20 l OERTZEN special motor oil OSP Part No max. 5 l three/four star gasoline (unleaded) minimum octane: 85 24

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