TOHATSU VF21BS Owner's Manual
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TOHATSU VF21BS Owner's Manual

TOHATSU VF21BS Owner's Manual

Portable fire pump
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OW N ER'S
MAN UAL
VF21BS
PORTABLE
FIRE PUMP
No.003-12067-1

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  • Page 1 OW N ER’S MAN UAL VF21BS PORTABLE FIRE PUMP No.003-12067-1...
  • Page 2 Copyright © 2020 Tohatsu Corporation. All rights reserved. No part of this manual may be reproduced or transmitted in any from or by any means without the express written permission of Tohatsu Corporation.
  • Page 3 APPLICATIONS OF THIS FIRE PUMP USAGE TOHATSU portable fire pump “VF21BS” is manufactured for use in firefighting operations. The portable fire pump is intended only for the firefighting activities in collaboration with general public fire extinguishing equipment. Using it for other applications is regarded as being used for improper purposes.
  • Page 4 Intended people All persons who operate, service or maintain the fire pump must read and understand the following items: Owner’s manual ・ Safety-related instructions on the pump and the other parts such as the battery. ・ The other owner’s manuals, such as battery charger. ・...
  • Page 5 INTRODUCTION Thank you for purchasing the TOHATSU Fire Pump. This fire pump has passed a range of quality assurance standards. Owner’s manual The portable fire pump complies with relevant laws and regulations. The manual includes a description for operation and maintenance. Before using this fire pump, be sure to read and understand the manual thoroughly.
  • Page 6 Before using this fire pump, write down the serial number in the following boxes. It will be useful in the case of asking about servicing, repairs and genuine parts. Serial Number pump serial (identification) number is marked on the pump casing.
  • Page 7 GENERAL SAFETY INFORMATION Overview Before operating the TOHATSU fire pump thoroughly read this manual to u nderstand the proper operating procedures including “DANGER”, “WARNING”, “CAUTION” and “NOTE”. These notices are designed to bring attention to very important information necessary to ensure safe, trouble free operation.
  • Page 8 Transporting the portable fire pump Retractable handle is folding CAUTION ・ type. Do not put hand or finger ・ between retractable handle and bracket. When transporting the portable ・ fire pump, assign one person per handle. Also, when you transport the portable fire pump, it should be ・...
  • Page 9 Safety devices Before operating this portable fire pump, be sure to check that all the safety devices have been installed in the appropriate positions. Before removing the safety devices, turn the main switch off. After protective devices (such as the muffler guard) have been disassembled as part of servicing and maintenance work, immediately install them back to their original locations, making sure that they are in...
  • Page 10 Service, Maintenance Servicing and maintenance of this fire pump must be carried out by o n l y t h e persons who have professional knowledge, who are familiar with the device, and who understand laws and regulations regarding safety and accident prevention. Before starting maintenance work, turn the main switch off to stop the engine.
  • Page 11 Battery Follow any safety-related instructions shown on the battery. The battery can generate flammable hydrogen gas that may cause an explosion. Do not charge the battery in closed location. Do not smoke around the battery. The battery electrolyte is caustic and may cause personal injuries.
  • Page 12 Genuine parts When replacing parts for servicing and maintenance of portable fire pumps, be sure to use only Tohatsu genuine parts. If genuine Tohatsu parts and accessories are not used, it may adversely affect the functioning and safety of the fire pump. Use genuine Tohatsu parts only.
  • Page 13 EC Declaration of Conformity (DoC) This product conforms to certain portion of the European Parliament directive. DoC contains the following information; Name and Address of the manufacturer ・ Applied community directives ・ Reference standard ・ Description of the product (Model name and serial number) ・...

  • Page 14: Table Of Contents

    CONTENTS SPECIFICATIONS……………..….………….……….…..…….…………….…..…….1 2. OPERATION DEVICE……………………..……..….……..…….…………...….….….…4 3. LABELS....….….….……..…..…….…...…..…...………..…...….….……6 4. OPERATING PRECAUTIONS……………….….…..…..…….….………...…….7 5. DESCRIPTION OF DEVICES……….…………….….……………..……….…….9 6. PREPARATION FOR OPERATION………………..….……….….……….….….18 7. USE OF OPERATION PANEL……………..……..………..….……..….….……21 8. STARTING THE ENGINE……………….…....….…….…….…..….…..…26 9. PRIME AND DISCHARGE………………….…….…..…..……..……..…….….…..29 10. STOPPING THE ENGINE……………..……...……….…..……..……….…..…..36 11. MAINTENANCE AFTER OPERATION……………..…...….……..…..……….37 12. MAINTENANCE IN COLD CONDITION………….……….………..……..…42 13.

  • Page 15: Specifications

    1. SPECIFICATIONS Model VF21BS Description Portable pump Engine Manufacturer TOHATSU CORPORATION Model 2WF55A Type 4-stroke, water cooled spark ignition engine Bore × Stroke 55mm × 44mm (2.17in × 1.73in) Number of Cylinder Piston displacement Authorized output 7.3 kW Fuel type...
  • Page 16 1. SPECIFICATIONS Model VF21BS Primer Type Rotary-vane vacuum pump (Oil less type) Max. suction height Approx. 9m (29.5ft) Pump Type Single suction, single stage, centrifugal pump Number of delivery outlets Discharge port coupling BSP thread 2-1/2" (65mm / 2.6in) male...
  • Page 17 1. SPECIFICATIONS Performance Curve (VF21BS)

  • Page 18: Operation Device

    2. OPERATION DEVICE Control panel and Battery side Manual starter handle Front mark Control panel Carrying handle Fuel tank cap Overheat switch Over heat switch Fuel tank Primer valve Battery: Connecting cables to the battery Oil level gauge Engine oil filler cap...
  • Page 19 2. OPERATION DEVICE Spark plug cap Vacuum pump Vacuum pump strainer cap Discharge valve handle Discharge valve Discharge port Air valve for drainage Suction Port Drain valve for discharge valve Muffler Drain valve for Water pump...

  • Page 20: Labels

    LABELS Instruction label Warning label Caution label Warning label Caution label Caution label (muffler) Caution label (battery)

  • Page 21: Operating Precautions

    4. OPERATING PRECAUTIONS Installing pump The fire pump must be installed on a level ground. Otherwise, CAUTION an accident may occur. If the fire pump should be installed on an uneven ground, it must be secured. Place the pump as near as possible to water source, and water NOTE suction height as low as possible.
  • Page 22 4. OPERATING PRECAUTIONS When installing the portable pump in a vehicle, place the CAUTION vehicle on a level place, and install the pump. When i ns tall ing the portable pump, i n th e veh i cl e, m ake s u r e to ap pl y th e br akes of the v ehi cl e i n or der to s to p the wh eel s .

  • Page 23: Description Of Devices

    5. DESCRIPTION OF DEVICES Carrying handle The fire pump is equipped with for carrying handles. The handles can be manually folded, and opened by rotating them by 90 degrees. Personal injuries may occur when CAUTION opening or closing the handle. Caring handle Do not put your hands or fingers into the retractable part when...
  • Page 24 5. DESCRIPTION OF DEVICES Assembling cowl After putting recoil starter handle through top cowl hole, put front latch into hole of control panel, and then, fit the rear hook into the hole. Pay attention to have the starter NOTE handle for manual starting goes through the window at the front upper side of the cowl.
  • Page 25 5. DESCRIPTION OF DEVICES Discharge port OPEN The diameter of the thread for fire pump is BSP CLOSE thread 2-1/2”(65mm / 2.6in) male. Discharge valve Discharge valve handle Use discharge valve handle for opening and closing the discharge valves. Air valve for drainage Drain valve Use the drain valves to drain water.
  • Page 26 5. DESCRIPTION OF DEVICES Engine oil Oil filler cap Refill appropriate amount of oil to the oil pan. Close the oil filler cap all the time except filling. Recommended engine oil： 4-stroke engine oil API class SF・SG・SH・SJ・SL・SM SAE10W-30/40、5W/0W-30 0W-30 is recommended for operation in cold location.
  • Page 27 Before storing the pump long term, drain the fuel from the carburetor. 3. Engine start knob Pull the engine start knob. 4. Main switch Turn the main switch to run or stop the pump for VF21BS. Description Function for VF21BS To Stop the pump...
  • Page 28 5. DESCRIPTION OF DEVICES Initial charge of battery The battery can be used immediately after filling cells with electrolyte. Be sure not to open the battery after filling it with electrolyte. Refer to the instruction of the battery. Before charging the battery, turn the main switch OFF. CAUTION When starting the pump operation, be sure to remove the battery charger plug from the socket before turning the main...
  • Page 29 5. DESCRIPTION OF DEVICES Warning lamp and buzzer Turning the main switch to "RUN" position, the lamp and buzzer check mode starts. The warning lamps light up and the buzzer sound for a moment to enable to check those functions. In the case of manual starting, while pulling the recoil starter the lamps and buzzer sound for a moment.
  • Page 30 5. DESCRIPTION OF DEVICES Low engine oil pressure warning Check engine oil level, and replenish if it is lower than specified level. If the level is within specified range, consult the dealer. The engine does not stop even if the low engine oil pressure CAUTION warning lamp lights up.
  • Page 31 5. DESCRIPTION OF DEVICES Floodlight (Search light) *Option Use the floodlight projector to illuminate the location where this fire pump is operated. Connect the floodlight plug to the outlet socket the pump. Fix the projector to the tripod with tightening the adjust screw. PLUG BULB 12V-55W Adjust screw...

  • Page 32: Preparation For Operation

    6. PREPARATION FOR OPERATION Fuel Fill the tank with gasoline until the maximum level Level gauge which is indicated by the gauge indicator (in red). ・ Fuel tank capacity : 4.0 L (1.06gal) Vaporized fuel may cause ignition or an ・...
  • Page 33 6. PREPARATION FOR OPERATION Use of low-quality fuel results in a short engine life as well as ・ NOTE starting difficulty and other engine problems. Fuel containing alcohol, methanol (methyl), or ethanol (ethyl) may ・ cause: -Deterioration of rubber parts and plastic parts. -Starting, idling and other engine performance problems.
  • Page 34 6. PREPARATION FOR OPERATION 4-stroke engine oil SAE 10W-30/40 or SF, SG, SH, SJ, SL and SM series of API classification Air valve for drainage Drain valves Make sure all drain valves are closed. Pump drain Valves Drain Valve (Ball cock) Close Open Close...

  • Page 35: Use Of Operation Panel

    7. USE OF OPERATION PANEL Main switch Low engine oil level Over heat warning lamp warning lamp Overheat warning lamp When the cooling water temperature rises above about 90 ° C, the engine shuts off automatically to prevent overheating. Warning lamp and sensor Turning the main switch to the “RUN”...
  • Page 36 7. USE OF OPERATION PANEL Warning system If any abnormality occur in the engine or the pump, an alarm buzzer sounds and the corresponding warning lamp turns on or flashes, and the engine will stop or the speed will be controlled which is depending on the status of an abnormal phenomenon. Alarm Displays, Abnormal Phenomena and Actions Indication Speed control...
  • Page 37 7. USE OF OPERATION PANEL Actions to be taken A： Turn the throttle lever to low pressure side. Water may not to be kept in the pump. B： Check the engine oil level, and replenish the oil if it is lower than specified level. If the level is within the specified range, contact the dealer.
  • Page 38 7. USE OF OPERATION PANEL Pump installation ・ Since the temperature around the engine becomes high because of the muffler and exhaust gas, install the pump on level ground at least three meters away from inflammable materials including dead leaves and wood. Exhaust gas, which contains carbon monoxide, is ・...
  • Page 39 7. USE OF OPERATION PANEL Do not run the pump without suction port strainer. If gravel ・ CAUTION enters the pump, then the pump could be damaged and the performance would be significantly reduced. 1. Place the pump in a horizontal location and close to the water source. Ensuring it is in a stable position.

  • Page 40: Starting The Engine

    8. STARTING THE ENGINE Make sure that the discharge valve is closed. Close Operate the pump according to the operating procedure (along with the order shown on the machine). If the throttle lever cannot be kept after the engine is started, adjust the throttle lever as below. (① ~ ④).
  • Page 41 8. STARTING THE ENGINE 1. Turn the fuel valve to the open position, this will Fuel valve allow fuel to flow into the carburetor. If the fuel line runs short of fuel and cannot be started, grasp primer valve several times until the primer valve becomes hard.
  • Page 42 8. STARTING THE ENGINE Starting engine using the manual starter If electric starter does not work, use the manual Manual starter handle starter. Start the engine by pulling the handle from the position where it feels heavy. In case engine will not start due to lack of fuel, squeeze primer bulb ・...

  • Page 43: Prime And Discharge

    9. PRIME AND DISCHARGE Prime and discharge While the engine is running with the cowl ・ removed, do not touch the rotating parts of the pulley or belt. This may cause personal injuries. If, when operating the vacuum pump for 30 ・...
  • Page 44 9. PRIME AND DISCHARGE Return the priming lever to the original position. Limit the vacuum pump operating time to within 30 seconds. ・ NOTE If the pump can’t suction water within 30 seconds, it may have a ・ problem. Refer to “Chapter 16 TROUBLESHOOTING” to rectify the problem.
  • Page 45 9. PRIME AND DISCHARGE Adjust the water volume and pressure turning the throttle lever. Throttle lever In the case of using a branch pipe, the person holding the ・ CAUTION branch pipe must be notified of changes in water discharge pressure caused from engine speed changes or discharge valve setting changes.
  • Page 46 9. PRIME AND DISCHARGE Relay water supply (when water is supplied from a fire hydrant) Determine the pump pressure in consideration of the water discharge pressure (nozzle pressure), hose pressure loss, and height loss. Pump pressure = needed pressure + height loss + friction loss Foreign materials such as dirt, gravel, iron rust, etc.
  • Page 47 9. PRIME AND DISCHARGE Relay pumping operations Packing case relay pumping ・ CAUTION operations training in a flat place, if the number of extending hose is less than ten, use the safety nozzle attached. Pumping plate Description of relay pumping operation Water Water Water...
  • Page 48 9. PRIME AND DISCHARGE Preparation for operation Do not close the discharge valve of source pump, relay pumps ・ and fire nozzle. If the discharge valves or nozzle are (is) closed, there will be a risk of damage to the pumps and hoses with excessive pressure or water hammer.
  • Page 49 9. PRIME AND DISCHARGE Adjust the discharge pressure with throttle lever. The suction pressure decreases with opening up the throttle. Always confirm the pressure with the suction pressure gauge. If the suction pressure drops below 0.1MPa (15 psi), order the operator of the former pump to increase the water pressure, and adjust the relay pump pressure by the throttle.

  • Page 50: Stopping The Engine

    STOPPING THE ENGINE Stop the engine 1. Return the throttle lever to “LOW pressure” side. Throttle lever Close the discharge valves. Close Stop the engine. Turn the main switch to“STOP”position. Main switch...

  • Page 51: Maintenance After Operation

    MAINTENANCE AFTER OPERATION Maintenance after pumping seawater or foul water After pumping seawater or foul water, the pump should be flushed out with fresh water immediately to prevent excessive corrosion. And operate the vacuum pump for 5 seconds at low engine speed in order to clean the inside of the vacuum pump.
  • Page 52 MAINTENANCE AFTER OPERATION 3. Start the engine, and operate the priming lever with Start the throttle lever at the suction position to produce a vacuum. *Priming (Vacuum) pump operating time: within 30 seconds. Priming lever Stop After a vacuum is produced, return the priming lever to the original position, and stop the engine.
  • Page 53 MAINTENANCE AFTER OPERATION Fuel and Oil Supply Level gauge Fuel Fill fuel until the maximum level of the gauge indicator (in red). Fuel tank capacity: 4.0L (1.06 gal) Wipe off fuel using a cloth or the ・ CAUTION Oil filler cap other materials if there is fuel out of the fuel tank.
  • Page 54 MAINTENANCE AFTER OPERATION Cleaning strainer for prime Remove the strainer cap, and remove the strainer. Strainer Cap Clean the strainer with fresh water. If the strainer is dirty with dust, etc., vacuum performance efficiency will be reduced. Vacuum pump strainer case Charging battery Read the safety instructions carefully and/or warnings before ・...
  • Page 55 MAINTENANCE AFTER OPERATION Battery charger Read the instruction manual of the battery charger before use. *The battery charger is packed with the instruction manual. Use an automatic battery charger. Use a battery charger that has an overcharge prevention ・ CAUTION function.

  • Page 56: Maintenance In Cold Condition

    12. MAINTENANCE IN COLD CONDITION Battery Hydrogen gas from the battery is explosive. ・ Keep battery away from flame and sparks. ・ Charge the battery in a well ventilated area. ・ Do not charge battery in unventilated area. ・ The battery capacity must be 12V/16Ah. ・...
  • Page 57 12. MAINTENANCE IN COLD CONDITION In the case of Maintenance-free battery In the case of a maintenance-free type battery, it is not ・ CAUTION required to replenish the distilled water. After starting to use it, don't open the battery caps later. Replace with new battery every 2 years.
  • Page 58 12. MAINTENANCE IN COLD CONDITION 3. Set the suction port cap. (keep the air valve for Suction port cap drainage opened) *Use a cap that suits the suction port size. Instead of the suction cap, using a plane stiff panel which can keep vacuum generated by the vacuum pump without leaking vacuum inside the pump could be possible.
  • Page 59 12. MAINTENANCE IN COLD CONDITION 8. After starting the engine, suck antifreeze fluid by Priming lever pull the priming lever. Even if all the anti-freezing fluid ・ NOTE sucked continue pulling priming lever for 30 seconds. 9. Turn the main switch to “STOP” position, and close the air valve for drainage.

  • Page 60: Use Of Accessory

    13. USE OF ACCESSORY Battery Battery performance will degrade if the temperature goes down. Also, if the specific gravity is low, the battery may freeze. ・ Hydrogen gas from the battery is explosive. ・ Keep battery away from flame and sparks. ・...
  • Page 61 13. USE OF ACCESSORY Pumping plate ・ When the fire pump is used for a water lifting device, such as CAUTION pumping water out of a cellar. Install the pumping plate* with holes in between the discharge port adapter and the bracket packing to avoid the pump cavitation which may cause damages to the pump.

  • Page 62: Periodical Inspection

    14. PERIODICAL INSPECTION Inspection intervals Description Inspection items Measure Impurities (ie. Water Clean out.*1 ● and / or waste) Level Refuel. ● Fuel Preservation period Replace.*1 ● 6 months of more. Fuel Degradation Replace.*1 system ● (ie. Stink or color) Impurities(If water and/or waste has Clean out.*1...
  • Page 63 14. PERIODICAL INSPECTION Inspection intervals Description Inspection items Measure Voltage measure Charge. ● Starting Battery system Replace. Period of use ● *1*2 Wear, crack, belt, Replace. V-Belt ● tension Clogging or broken Strainer Clean or replace. ● mesh Priming Is not locked. system Check Replace parts if...

  • Page 64: Service And Maintenance

    When replacing parts as part of servicing and maintenance of the fire pump, use only Tohatsu genuine parts. If genuine Tohatsu parts and accessories are not used, it may adversely affect the function and safety of the fire pump. Therefore, for safety reasons, use only Tohatsu genuine parts.
  • Page 65 15. SERVICE AND MAINTENANCE Opening the cowl When removing or attaching top cowl, turn the ・ throttle lever to “High pressure” side. *The engine has to be stopped. Throttle lever ・ Remove the rear hook from the hole, and remove the top cowl while taking care not to give damage with the recoil starter handle.
  • Page 66 15. SERVICE AND MAINTENANCE Vacuum pump strainer Maintenance Incorrect installation of the strainer may cause a vacuum leak. Be ・ NOTE sure to install the strainer correctly. Refer to “Chapter 11 MAINTENANCE AFTER OPERATION” 1. Remove the strainer cap, and remove the strainer. Strainer cap 2.
  • Page 67 15. SERVICE AND MAINTENANCE Vacuum pump V belt Check the V belt every year or every 100 hours operating time. V belt size: M-23 V-belt Spark plug Check the spark plugs. 1. Remove the plug cap, and remove the plug. 2.
  • Page 68 15. SERVICE AND MAINTENANCE Battery General safety information Follow the safety instructions on the battery. When charging battery, highly explosive oxyhydrogen gas mixture is produced. Do not charge a battery in a poorly ventilated place. Do not smoke near the battery. ・...
  • Page 69 15. SERVICE AND MAINTENANCE Electric equipment Only expert electricians or trained staff members ・ should handle the electrical equipment. ・ Be sure to disconnect the battery cables before handling electrical equipment. ・ Disconnect negative terminal first, disconnect the positive terminal. ・...
  • Page 70 15. SERVICE AND MAINTENANCE Suction performance check ・ Limit continuous operating time of the vacuum pump to 30 CAUTION seconds or less. Operating the pump for 30 seconds or more continuously may ・ cause overheat of the engine, then wait until it cools down, discharge water to cool down the engine.
  • Page 71 15. SERVICE AND MAINTENANCE 5. Check that the vacuum pressure of the pressure Priming lever gauge for suction is about -0.08 MPa (-12psi). 6. In order to check that there is no vacuum leak, leave it for 30 seconds and confirm that the pointer of the pressure gauge for suction keeps the same pressure indication.
  • Page 72 15. SERVICE AND MAINTENANCE Water leak check 1. Attach the suction hose to the suction port. Suction hose 2. Place the end of the hose into the water more than 300mm (11.8in) deep from the water surface, and then close the discharge valve handle. 3.

  • Page 73: Troubleshooting

    16. TROUBLESHOOTING Typical causes of engine troubles are listed in the following table. Trouble Action Cause Fuel shortage Refuel ● ● ● ● Replace with new Deterioration ● ● ● ● ● ● of fuel fuel. Clean out Fuel tank air ●...
  • Page 74 16. TROUBLESHOOTING Trouble Action Cause Check the terminals, cords Starter motor and screws. If ● defective necessary, replace part. Check input of starter solenoid. Control panel (Equal to control ● ● ● panel output.) defective Replace parts if necessary. Piston, piston ring or Correct or cylinder...
  • Page 75 16. TROUBLESHOOTING Trouble Action Cause Suction hose strainer clogged with Clean out. ● ● dead leaf or waste etc. Suction hose cracking or Repair or replace. ● ● ● ● lining peeling Vacuum pipe Tighten securely a loose or clump of vacuum ●...
  • Page 76 16. TROUBLESHOOTING Trouble Action Cause Drain valves Close securely. ● ● ● are not closed Suction port strainer clogged with Clean out. ● ● dead leaf or waste etc. Discharge valve Open securely. ● ● imperfect open Gauge pipe connector Tighten securely.

  • Page 77: Appendix

    17. APPENDIX Tightening torque specifications N·m Standard Bolt lb·ft kgf·m 0.07 0.16 N·m Heat Treated Bolt lb·ft kgf·m...

  • Page 78: Tool And Standard Accessory

    TOOL AND STANDARD ACCESSORY Standard accessory Description Remarks Quantity Owner’s manual Tool kit • Tool kit bag • Plug wrench • Handle of plug wrench DCPR6E Spark plug Pumping plate Fuse 7.5A * Φ7×Φ10×300mm Vinyl pipe (L:11.81in) Floodlight (4P) *A spare fuse is attached in a fuse box.

  • Page 79: Wiring Diagram

    WIRING DIAGRAM Main switch connection table Black/ Black Black Green Description White Position Automatic START reset...
  • Page 80 OW N E R’S M A N UA L VF21BS PORTABLE FIRE PUMP No.003-12067-1 5-4, Azusawa 3-Chome, Itabashi-Ku Tokyo 174-0051, Japan Phone : +81-3-3966-3137...

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