Hyundai HWP Series Manual
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Hyundai HWP Series Manual

Hyundai HWP Series Manual

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HWP & HWT SERIES
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  • Page 1 HWP & HWT SERIES Manual...
  • Page 2 HWP & HWT SERIES HWP & HWT SERIES The engine exhaust from this product contains chemicals known to cause cancer, birth defects or other reproductive harm. ©2023 Hyundai Power Equipment. All Rights Reserved. Licensed by Hyundai Corporation Holdings, Korea. HWP_Manual_EN_2023-09-22...
  • Page 3 HWP & HWT SERIES This product is supported by Midland Power. Contact us directly for assistance and warranty help. Do not return this product to store. You must register online for your warranty to be valid. It only takes a minute, do it now while you still have your purchase receipt.
  • Page 4 HWP & HWT SERIES Thanks for choosing the HWP & HWT Series! You're excited to get started, we'll keep this brief. READ THIS ENTIRE GUIDE BEFORE USING THIS PRODUCT AND SAVE FOR LATER USE. This user guide contains important instructions including safety, setup, operation, and maintenance that must be followed.

  • Page 5: Table Of Contents

    HWP & HWT SERIES TABLE OF CONTENTS 1. Safety 2. Learn About Your Water Pump 2.1 Component Identification (HWP150) 2.2 Component Identification (HWP270 and HWP370) 2.3 Component Identification (HWT370) 2.4 Identification of Controls 2.5 Make Sure You Have Everything 3. Pre-Operation Check 3.1 Check the Oil Level 3.2 Check the Fuel Level 3.3 Prep the Air Filter...

  • Page 6: Safety

    HWP & HWT SERIES 1. SAFETY DANGER! Using a water pump indoors can kill you in minutes. The engine exhaust from this product contains chemicals known to cause cancer, birth defects or other reproductive harm. 1.1 SAFETY WHILE OPERATING YOUR ENGINE WARNING!  ...
  • Page 7 HWP & HWT SERIES   Place the pump at least 5 feet away from buildings or other equipment during operation.   Run the pump on a level surface. Tilting the water pump may result in fuel spills.   Know how to stop the water pump quickly and understand operation of all the controls.
  • Page 8 HWP & HWT SERIES maintenance work.   Always keep the unit as clean as possible. Keep it free of loose vegetation, mud, etc.   Always be ready to stop the unit immediately if it suddenly begins to vibrate or shake. Inspect for broken, missing or improperly installed parts.  ...
  • Page 9 HWP & HWT SERIES   To avoid breathing in poisonous carbon monoxide from the exhaust gases, adequate ventilation should be provided if the engine is running in a partially enclosed space.   Water and trash pumps vibrate in normal use. During and after use, inspect the entire unit as well as water hoses and power supply cords connected to it for damage resulting from vibration.

  • Page 10: Learn About Your Water Pump

    HWP & HWT SERIES 2. LEARN ABOUT YOUR WATER PUMP This section will show you how to identify key parts of your water/trash pump. Going over the terminology below will make sure we’re on the same page. 2.1 COMPONENT IDENTIFICATION (HWP150) Muffler Choke Lever Air Cleaner...

  • Page 11: Component Identification (Hwp270 And Hwp370)

    HWP & HWT SERIES 2.2 COMPONENT IDENTIFICATION (HWP270 AND HWP370) Priming Water Filler Cap Fuel Filler Cap Discharge Port Recoil Starter Oil Filler Cap & Dipstick Air Filter Housing Muffler Frame Suction Port Ignition Switch Pump Drain Cap Oil Drain Plug...

  • Page 12: Component Identification (Hwt370)

    HWP & HWT SERIES 2.3 COMPONENT IDENTIFICATION (HWT370) Priming Water Filler Cap Air Filter Housing Recoil Starter Oil Filler Cap & Dipstick Fuel Filler Cap Muffler Frame Discharge Port Pump Cover Ignition Switch T-Handle Bolt Suction Port Oil Drain Plug Pump Drain Cap...

  • Page 13: Identification Of Controls

    HWP & HWT SERIES 2.4 IDENTIFICATION OF CONTROLS Fuel Valve Lever   The fuel valve opens and closes the passage between the fuel tank and the carburetor. The fuel valve must be in the ON position for the engine to run. When the engine is not in use, leave the fuel valve lever in the OFF position to prevent carburetor flooding and to reduce the possibility of fuel leakage.
  • Page 14 HWP & HWT SERIES Ignition Switch STOP STOP   The ignition switch must be in the RUN position for the engine to run. Turning the ignition switch to the STOP position stops the engine. Throttle Lever   The throttle lever controls the engine speed. Moving the throttle lever in the directions shown makes the engine run faster or slower.

  • Page 15: Make Sure You Have Everything

    HWP & HWT SERIES Recoil Starter Grip   Pulling the recoil starter grip operates the recoil starter to crank the engine. Low Oil Shutdown Feature   This feature is designed to prevent engine damage caused by an insufficient amount of oil in the crankcase. The sensor will automatically stop the engine before the oil level in the crankcase falls below a safe limit (the ignition switch will remain in the RUN position).

  • Page 16: Pre-Operation Check

    HWP & HWT SERIES 3. PRE-OPERATION CHECK Inspect all components for damage and to ensure that none are missing. If you require a replacement, do not operate this tool until all parts are present and in proper working order. NOTE  ...
  • Page 17 HWP & HWT SERIES Effective Viscosity Range of Engine Oils 10W-40 10W-30 Synthetic 5W-30 5W-30 °C °F NOTE   SAE10W-30 is recommended for general use. Other viscosities may be used based on the average temperature range as shown.   Do not tilt the water pump when adding engine oil. This could result in overfilling and damage to the engine.

  • Page 18: Check The Fuel Level

    HWP & HWT SERIES 3.2 CHECK THE FUEL LEVEL WARNING! Gasoline is highly flammable and explosive under certain conditions. Refuel in a well-ventilated area with the engine stopped. Do not smoke or allow open flames or sparks in the area where the unit is being refueled or where gasoline is stored.

  • Page 19: Prep The Air Filter

    HWP & HWT SERIES 3.3 PREP THE AIR FILTER Clean and oil the air filter before your first use. Check the maintenance schedule for a complete cleaning guide. Clean the air filter every 3 months or after 50 hours of operation.

  • Page 20: Hose Connections

    HWP & HWT SERIES 3.4 HOSE CONNECTIONS Rubber Seal Hose Coupler Ring Hose Clamp Hose Coupler Hose Clamp Suction Hose (not included) Strainer Insert adapters into each end of the suction and discharge hoses. Attach O-Rings to the adapters. Tighten the hose clamp around the discharge hose. Insert strainer into the suction hose and tighten the hose clamp around the hose.

  • Page 21: Using Your Pump

    HWP & HWT SERIES 4. USING YOUR PUMP DANGER! Water pump exhaust contains high levels of carbon monoxide (CO), a poisonous gas you cannot see or smell. If you can smell the exhaust you are breathing CO. Even if you cannot smell the exhaust, you could be breathing NEVER run the pump inside a home, garage, crawlspace, or other partly enclosed area, deadly levels of carbon monoxide can build up in these areas.

  • Page 22: Pump Placement

    HWP & HWT SERIES 4.1 PUMP PLACEMENT Location of the water pump affects the maximum water output. Place the pump on a sturdy, level operating surface close to the water surface. To further maximize the output, keep total head lift low, and hose length short.  ...
  • Page 23 HWP & HWT SERIES Always keep the flow of water unobstructed in the discharge hose by keeping it flat and straight. Avoid sharp bends in the hoses and do not place heavy objects on top. If the discharge hose must run across a roadway, heavy boards should be placed next to the hose, so the motor vehicle’s weight does not deform or crush the discharge hose.
  • Page 24 HWP & HWT SERIES Total Head HWP270 35,0 115.0 31,5 103.5 28,0 92.0 24,5 80.5 21,0 69.0 17,5 57.5 14,0 46,0 10,5 34.5 23.0 11.5 Flow Rate 103 113 123 134 144 154 L / min Total Head HWP370 115.0 35,0 31,5 103.5...

  • Page 25: Priming Water

    HWP & HWT SERIES Total Head HWT370 30,0 98.4 27,0 88.6 24,0 78.7 21,0 68.9 18,0 59.0 15,0 49.2 12,0 39.4 29.5 19.7 Flow Rate 164 185 205 226 246 267 287 308 L / min 1.011 1.089 1.167 4.2 PRIMING WATER WARNING! Do not operate without priming.

  • Page 26: Starting The Pump

    HWP & HWT SERIES 4.3 STARTING THE PUMP Prime the pump (refer to the ‘Priming Water’ section) Rotate the fuel valve lever to ON position. Flip the ignition switch to the RUN position. If the engine is cold: push the choke lever to the CHOKE position to close the choke.
  • Page 27 HWP & HWT SERIES Move the throttle lever 1/3 of the way towards the MAX position. Grasp the recoil starter handle and pull it until the engine starts. NOTE   Do not allow the recoil starter to snap back. Return it slowly by hand.
  • Page 28 HWP & HWT SERIES Push the choke lever to the RUN position as the engine warms up. The choke is used to provide the proper air-fuel mixture when the engine is cold. It is opened and closed manually by moving the choke lever to the closed position to enrich the mixture for cold starting.

  • Page 29: Stopping The Engine

    HWP & HWT SERIES 4.4 STOPPING THE ENGINE Return the throttle lever to the MIN position (towards the right). Flip the ignition switch to the STOP position. STOP STOP...
  • Page 30 HWP & HWT SERIES Turn the fuel valve to the OFF position. NOTE   In an emergency, the engine can be quickly stopped by turning the engine switch to the OFF position. After use, remove the pump drain plug and drain the pump chamber.
  • Page 31 HWP & HWT SERIES Remove the filler cap, and flush the pump chamber with clean, fresh water. Allow the water to drain from the pump chamber. Reinstall the filler cap and drain plug.

  • Page 32: Maintenance

    HWP & HWT SERIES 5. MAINTENANCE Proper maintenance ensures safe, economical and trouble-free operation. Improper maintenance may cause the unit to malfunction and can lead to serious injuries. Contact Customer Support if you have any maintenance questions. 5.1 MAINTENANCE SCHEDULE Regular maintenance will improve performance and extend the service life of the pump.

  • Page 33: Changing The Oil

    HWP & HWT SERIES 5.2 CHANGING THE OIL WARNING! Used motor oil can cause skin irritations if left in long-term contact with skin. Wash hands thoroughly with soap and water after handling oil. NOTE   Do not dispose of used oil in drains or on soil. Local service shops provide environmentally-friendly disposal methods.
  • Page 34 HWP & HWT SERIES MAX. LEVEL MIN. LEVEL Reinstall drain plug before filling the engine with fresh oil. Fill the oil to the maximum oil mark. Check the oil level by reinserting the dipstick without rethreading it. Reinstall the dipstick and tightly fasten it. NOTE  ...

  • Page 35: Air Filter Service

    HWP & HWT SERIES 5.3 AIR FILTER SERVICE WARNING! Using gasoline or other flammable solvents can cause a fire or explosion. Do not use these to clean the air filter. Do not operate this product without an air filter. Wing nut Air Cleaner Cover Air Filter Unscrew the air filter cover.

  • Page 36: Spark Plug Service

    HWP & HWT SERIES 5.4 SPARK PLUG SERVICE NOTE   Do not rinse spark plug in water. Follow guidelines and be careful not to overtighten the spark plug Tighten ½ turn when installing a new spark plug. Tighten ¼ turn when re-installing an old spark plug. Disconnect and remove the spark plug using a wrench.

  • Page 37: Fuel Sediment Cup Service

    HWP & HWT SERIES 5.5 FUEL SEDIMENT CUP SERVICE NOTE   Switch fuel valve to the OFF position. Sediment Cup Unscrew the sediment cup using a wrench and remove the O-ring. Wash the cup and O-ring in a non-flammable solvent and dry thoroughly. Place the O-ring in the fuel valve, then attach sediment cup.

  • Page 38: Fuel Drainage

    HWP & HWT SERIES 5.6 FUEL DRAINAGE WARNING! Gasoline should not be stored in containers that are not safe for fuel transport. Fuel Drain Screw Place container underneath while removing the drain screw from the carburetor. Turn the fuel valve to ON and slowly remove the fuel drain screw. Allow fuel to drain fully and reinsert the screw.

  • Page 39: Spark Arrester Service

    HWP & HWT SERIES 5.7 SPARK ARRESTER SERVICE Your engine is not factory-equipped with a spark arrester. In some areas, it is illegal to operate an engine without a spark arrester. Check local laws and regulations. A spark arrester is available from authorized servicing dealers. The spark arrester must be serviced every 100 hours to keep it functioning as designed.

  • Page 40: Cleaning

    HWP & HWT SERIES 5.8 CLEANING Impeller cleaning is important when storing pump for long periods of time. It is also advisable as part of regular maintenance checks. NOTE   Do not use a pressure washer to clean this product. Delicate electrical components may be damaged.

  • Page 41: Transportation

    HWP & HWT SERIES 5.9 TRANSPORTATION WARNING! Engine and exhaust will become hot. Avoid contact due to risk of burns and fires. Allow engine to cool before transporting unit. NOTE   Do not drop or strike the pump during transport. Avoid placing heavy objects on the frame or gas tank.

  • Page 42: Carburetor Modification For High Altitude Operation

    HWP & HWT SERIES 5.11 CARBURETOR MODIFICATION FOR HIGH ALTITUDE OPERATION (Above 2000 feet) NOTE   This engine is equipped to run at altitudes below 2,000-ft.   A high-altitude main jet is recommended when operated at 2,000 to 7,000-ft above sea level.  ...
  • Page 43 HWP & HWT SERIES Carburetor Assembly Fuel Cup Seal Mixing Tube (might remain inside carburetor) Main Jet Fuel Cup Washer Drain Bolt Bolt Seal Bolt Turn off the engine. Close the fuel valve. Place a bowl under the fuel cup to catch any spilled fuel. Unthread the bolt holding the fuel cup.

  • Page 44: Troubleshooting

    HWP & HWT SERIES 6. TROUBLESHOOTING Common issues can be fixed by following the instructions in this guide. If the unit will not function after following these instructions, contact technical support before attempting to use or repair the product. Issue Cause Action Use a wrench to...

  • Page 45: Specifications

    HWP & HWT SERIES 7. SPECIFICATIONS Model HWP150 HWP270 HWP370 HWT370 Pump Type Water Transfer Water Transfer Water Transfer Trash Pump Size 1.5” 2” 3” 3” Fuel Tank 1.5 L 3.6 L 3.6 L 3.6 L Capacity Fuel Type Ethanol Free Ethanol Free Ethanol Free Ethanol Free...

  • Page 46: Pump Assembly

    HWP & HWT SERIES 8. PUMP ASSEMBLY...

  • Page 47: Limited Warranty

    HWP & HWT SERIES 9. LIMITED WARRANTY This product is distributed by: Midland Power Inc. 376 Magnetic Drive, Toronto, ON M3J 2C4, Canada Warranty Beginning at the time of retail purchase and for the duration of the warranty period Midland Power Inc. (Midland) warrants that Equipment manufactured by it is warranted to be free from defects in material and workmanship.
  • Page 48 HWP & HWT SERIES Replacement of parts made in connection with normal maintenance services including oils, adhesives, additives, fuel, filters, brushes, belts, lubricants, spark plugs, gaskets, seals, fasteners, wires, tubes, pipes, fittings, wheels, batteries, and other expendables susceptible to natural wear; g.
  • Page 49 HWP & HWT SERIES Emission Control System Warranty Parts: This list applies to parts supplied by Midland Power Inc. and does not cover parts supplied by the equipment manufacturer. Please see the original equipment manufacturer’s emissions warranty for non-Midland Power Inc. parts. Consumable parts are covered up to a maximum of 30 days.
  • Page 50 Enjoy! Be sure to check www.hyundaipower.ca for updates regarding your product.
  • Page 51 Customer Service Online: www.hyundaipower.ca E-mail: support@midlandpowerinc.com Toll Free: 1-877-528-3772...
  • Page 52 For Inquiries, Please Contact: Midland Power Inc. 376 Magnetic Drive, Toronto, ON Canada M3J 2C4 1-877-528-3772 support@hyundaipower.ca www.hyundaipower.ca Imported / Distributed by Midland Power Inc., Canada Licensed by Hyundai Corporation Holdings, Korea...

This manual is also suitable for:

Hwt seriesHwp150Hwp270Hwp370Hwt370

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