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Koshin SEV-50D Operation Manual

Engine driven pump
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Thank you for purchasing this product.
· Read this manual carefully before using the
product.
· Store the manual once you have finished read-
ing it.
· Those who do not understand the content of
this operation manual should not operate the
product.
· If you lend this product to another person, ex-
plain how to use the product and instruct them
to read the operation manual carefully.
Please note that the illustrations and content in
this operation manual may differ to the actual
product due to changes to the specifications.
ENGINE DRIVEN PUMP
OPERATION MANUAL
SEV-50D, SEV-80D
Applications
Water transportation
Do not use it for any purpose other than its
intended purpose.
CONTENTS
INTRODUCTION
NAME OF PARTS ................................................ 2
SAFETY PRECAUTIONS .................................... 3
OTHER PRECAUTIONS ..................................... 5
PREPARATION
PREPARATIONS FOR STARTING ..................... 6
HOW TO USE THE PRODUCT
AFTER USING THE PRODUCT ........................ 14
LONG-TERM STORAGE .................................. 19
INSPECTION AND MAINTENANCE
TROUBLESHOOTING ...................................... 20
OTHER ITEMS
SPECIFICATIONS ............................................. 22
PERFORMANCE CARVE ................................. 23
SPAREPARTS ................................................... 23
22-06 012358201(ENG)

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Summary of Contents for Koshin SEV-50D

  • Page 1: Table Of Contents

    ENGINE DRIVEN PUMP OPERATION MANUAL SEV-50D, SEV-80D Applications Water transportation Do not use it for any purpose other than its intended purpose. CONTENTS INTRODUCTION NAME OF PARTS ..........2 SAFETY PRECAUTIONS ........3 OTHER PRECAUTIONS ........5 PREPARATION PREPARATIONS FOR STARTING ..... 6 HOW TO USE THE PRODUCT Thank you for purchasing this product.

  • Page 2: Name Of Parts

    NAME OF PARTS Priming water filler cap Frame Discharge port Muffler Fuel filler cap Decompression lever Suction port Water drain plug Fuel cock Air cleaner Fuel tank Recoil starter Water pump handle Speed control knob Oil filler cap Diesel engine / dipstick Oil drain plug...

  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS Read these safety precautions carefully before using the product. The cautions shown here are for using the product correctly and to prevent hazards and injury to those using the product and other people. ■ Injuries and hazards that may occur if the displayed content is ignored and the product is used incorrectly are categorized as "DANGER", "WARNING", and "CAUTION". All cat- egories are important for safety, so always follow them. DANGER Content for which it is considered highly likely a person will die or be seriously injured.
  • Page 4 SAFETY PRECAUTIONS WARNING PREVENTING FIRES PREVENTING BURNS Never add fuel to the fuel tank while the · Never touch the muffler, muffler cover or engine is running. Wipe away all fuel spills engine body while the engine is running with a clean cloth. Keep gasoline, kerosene, or hot. matches, other explosives and flammable OTHER SAFETY ITEMS away from the product, since the tempera-...

  • Page 5: Other Precautions

    OTHER PRECAUTIONS While the engine is still new, applications of heavy loads may shorten the life of the engine. During the first 20 hours, follow the break-in procedures. 1. Avoid overloads During break-in period, avoid applying heavy loads before the engine is stabi- lized. 2. Change engine oil regularly About one month or 20 hours after initial starting and every 3 months or 100 hours thereafter, change the engine oil while the engine is still warm.

  • Page 6: Preparations For Starting

    PREPARATIONS FOR STARTING 3. Do not overfill Selection and Handling of Fuel Oil Overfilling is dangerous. With the engine 1. Selection of fuel oil level, do not fill the fuel beynod the top of Use the most suitable diesel fuel oil for the red component in the fuel tank filter. the engine. Fuel filler cap 2. Keep dust and water out of the fuel When filling the fuel tank from drums, make sure no dust or water are mixed in with the fuel since this may lead to serious fuel injection pump and nozzle problems.
  • Page 7 PREPARATIONS FOR STARTING WARNING Fill the oil up to the mouth of the filler port with tne engine placed on the level. Refuel in a well ventilated area with the engine stopped. Also check that the en- Engine oil capacity 1.1 L gine has sufficiently cooled. Do not smoke or allow flames or sparks in the area where the engine is refueled Upper level (H) or where fuel is stored. Do not overfill the tank and make sure Lower level (L) the filler cap is securely closed after re- fueling. Be careful not to spill fuel when refue- ling. If any fuel is spilled, make sure the Fill up to the top of the filler port with the engine on the level area is dry before starting the engine.
  • Page 8 PREPARATIONS FOR STARTING Servicing the Air Cleaner Fastener Air cleaner element Air cleaner lower body Max. oil limit 1. Open the fasteners and remove the various parts. 2. If the engine oil in the oil bath is dirty, dispose of it and wash it with parts cleaner, kerosene, or gasoline. 3. Fill new engine oil under the bore (Max. oil limit). Specified amount 20 mL 4. Refit the various parts. CAUTION Replace the element if output falls or a bad exhaust color is noticed. Never operate the pump without an air cleaner element and an engine oil. Sand or foreign matter is prone to getting in- side the engine, which may hasten en- gine wear and tear.

  • Page 9: Preparations For Pump Operation

    PREPARATIONS FOR PUMP OPERATION Different accessories are suitable for different · Pump failure will occur if the suction models. Please check connection diameter strainer is not properly fitted. and install correct parts. The strainer keeps the size of the suspended solids entering the pump 2) Hose nipple to the predetermined size the pump has 3) Coupling packing been designed to handle.

  • Page 10: Starting The Engine And Pump

    STARTING THE ENGINE AND PUMP 1. Open the fuel cock. 4. Push down the decompression lever. It will return automatically when the recoil starter (rope) is pulled. Decompression lever Fuel cock 2. Put the engine speed control knob on NOTICE the "RUN" position. "Run" and "High" are the same position. · Make sure to lower the decompression lever and then pull the recoil starter How to use the speed control knob.
  • Page 11 STARTING THE ENGINE AND PUMP 7. Wait for a while (for 2–3 minutes) until How to identify and treat engine reversal water is discharged. If no water is dis- If the engine reverses, engine oil will not charged, perform the following actions. be sent to each part, which may cause a CAUTION major failure in a short period of time, so please be careful. Stop the engine when priming. If the priming plug is removed during Precautions when reversing the engine operation, hot water in the pump may spray out and cause burns. CAUTION · Remove the cap and add priming water. ·...
  • Page 12 STARTING THE ENGINE AND PUMP Checks during Operation WARNING Never remove plugs or hoses if there is heat or pressure inside the pump. If the pump is operated for a long time with the discharge closed or self-suction defect, the water in the pump becomes hot and high-pressure. If the plug or hose is removed in this con- dition, hot water may spray out and cause burns.

  • Page 13: Stopping The Engine And Pump

    STOPPING THE ENGINE AND PUMP 1. Cooling-down before stopping the en- WARNING gine, turn the engine speed knob to the If the engine continues to run even "SLOW" position and turn the engine when speed control knob is in the for about three (3) minutes. "Stop" position, close fuel cock or loosen the nut on pump's high pres- CAUTION sure fuel pipe. Reduce the load slowly when stop- Make sure to ask your dealer to tight- ping the engine. Do not stop the en- en the nut after that. As this part is gine suddenly since this may cause under high pressure, it is dangerous if the temperature to rise abnormally. the nut is not tightened correctly. 2. Turn the engine speed control knob to the "STOP" position. Loosen the nut Speed control knob 4. Slowly pull out the recoil handle until pressure is felt (that is, to the point in the compression stroke where the in- take and exhaust valves are closed), 3. Close fuel cock. and leave the handle in this position.

  • Page 14: After Using The Product

    AFTER USING THE PRODUCT 1. Drain water after use · After use, remove the drain plug at the bottom and pour water from the suction / discharge ports so that the remaining sand is forced out of the pump. Water drain plug NOTICE ·...

  • Page 15: Periodic Checks And Maintenance

    PERIODIC CHECKS AND MAINTENANCE To keep the engine in good condition and CAUTION durable for a long time, periodic checks and After the pump has been used clean the maintenance are very important. pump immediately with a cloth to pre- The chart below indicates what checks to vent corrosion or to remove sediment. make and when to make them. Always use the specified parts. The use The mark (●) indicates that special tools and of replacement parts which are not of skills are required.
  • Page 16 PERIODIC CHECKS AND MAINTENANCE How To Change the Engine Oil Clean / change the Air Cleaner parts Remove the oil filler cap and drain plug and drain the old oil while the engine is still warm. The plug is located on the bottom of cylinder block. Fastener Tighten the drain plug and refill with the recommended oil. (See the section under "Preparations for starting".) Oil filler cap / dipstick Air cleaner element Air cleaner...
  • Page 17 PERIODIC CHECKS AND MAINTENANCE 7. Fit the fuel hose to the tank with a Drain the FueI Tank and Replace Fuel Filter clamp. DANGER 8. Fill the fuel tank with fuel and check for Always wipe up all spills immediately. leaks. Diesel fuel is flammable and explosive un- Repair or replace parts as necessary. der certain conditions. Store any containers Cleaning the Inside of the Pump Casing containing fuel in a well-ventilated area, away from any combustibles or sources of Remove debris from impeller. ignition.
  • Page 18 PERIODIC CHECKS AND MAINTENANCE 4. Please check if rubber / gasket packing Check hose at suction side is installed and if there is any hole and Check suction hose. In case of no suction or crack in suction hose. small discharge, the cause is usually due to air leakage at suction side. In such case: 1. Remove suction hose. Hole and crack Flat / crushed Suction hose in hose hose...

  • Page 19: Long-Term Storage

    LONG-TERM STORAGE When storing the pump for long periods, 5. Wipe the oil and dirt from the engine make the following preparations. and store in a dried place. 1. Fill the pump with clean water and run 6. Remove the drain plug on pump and the engine for about 2 minutes at low drain water from pump fully. speed. 2. Stop the engine and close the fuel cock. Drain the engine oil while the en- gine is still warm and fill with new oil. Oil filler cap Water drain plug / dipstick 7. Always keep the outside of the water pump clean. Oil drain plug Storage Condition ·...

  • Page 20: Troubleshooting

    TROUBLESHOOTING SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION Replace fuel. If there is no improvement, Old fuel repair engine Rusting inside engine Repair Burn out of engine Repair Cannot pull or hard to pull recoil starter handle Blocked impeller Dismantle & clean the impeller Debris at impeller Dismantle &...
  • Page 21 TROUBLESHOOTING SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION Engine speed / rpm is too low Repair Damage to mechanical seal Replace mechanical seal (Repair) Wrong suction hose used Use suction hose correctly Pump does not prime wa- Use the product with water that is 45 °C The atmospheric or water temperature is too hot (113 °F) or lower Clogged strainer...

  • Page 22: Specifications

    SPECIFICATIONS Product category Water pump Product name Engine driven pump Model name SEV-50D SEV-80D Suction 50 mm (2") 80 mm (3") Connection dia Discharge 50 mm (2") 80 mm (3") Connection thread Outer pipe thread BSP Pump Total head 32 m (104 ft)

  • Page 23: Performance Carve

    PERFORMANCE CARVE 200 (USG/min) (ft) SEV-50D SEV-80D 100 200 300 400 500 600 700 800 900 1000 Discharge volume (L/min) NOTICE · Performance ratings are guaranteed minimum, not inflated maximum. SPAREPARTS SPAREPARTS For spareparts information, visit http://www.koshinpump.com Click...
  • Page 24 TEL.: +81-75-953-2499 FAX.: +81-75-954-6119 E-mail: info@koshin-ltd.co.jp 12 Kami-Hachinotsubo Kotari, Nagaokakyo City, Kyoto 617-8511 JAPAN...

This manual is also suitable for:

Sev-80d

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