XtremepowerUS 72031 Gas-Powered Water Pump

Preface

Thank you for choosing XtremepowerUS Gas-Powered Water Pump. Please keep this user manual as it forms a vital part of the water pump and is necessary for future reference. This user manual contains operational instructions for the 2" water pump, model 72031. Review the manual thoroughly to maximize pump performance. If you encounter any operational issues or have questions about the pump, contact XtremepowerUS for assistance. XtremepowerUS may change specifications at any time without notice or obligation. Duplication of this manual, in whole or part, is not allowed without the explicit written permission from XtremepowerUS.

1. Safety

Safety Overview

Operator and public safety is the highest priority. Vital safety instructions are provided in this user manual and on the water pump and engine to ensure protection. Carefully read and understand these safety guidelines.

• Clean and high-pressure pumps: For clean water only.
• Sewage pumps: Handles soft solids up to 25.4mm.
• Chemical pumps: For weak acids/bases (PH4-11), flammable liquids, seawater.
• Mud pumps: For dirty water with solids up to 25.4mm diameter.

Operation and Fuel Safety

• Keep pumps 1m from walls/objects.
• No flammables near the pump or during refueling.
• Refuel with engine off, in well-ventilated areas; clean spills immediately.
• After refueling, secure the fuel cap.

Heat and Exhaust Caution

• Muffler gets hot; let it cool before touching or storing.
• Avoid enclosed spaces; exhaust emits toxic carbon monoxide.

Safety Warnings

• Do not remove the priming plug while the engine is operational to prevent damage and injury.
• Keep children and pets at a distance to avoid burn risks from hot engine parts.
• Operating the machine in explosive environments is strictly prohibited.

Safety Label

The document indicates safety labels with different severity levels:

• DANGER: Failure to follow these instructions may lead to serious injury or fatality.
• WARNING: Disregarding these instructions may cause injury.
• CAUTION: Not adhering to these instructions could result in damage to the water pump or other property.

2. Component Identification

The following components are identified for various pump types:

1" Clean Water Pump

Components include: Fuel Tank Cap, Fuel Tank, Air Filter, Discharge Port, Engine Switch, Oil Dipstick, Spark Plug, Muffler, Priming Water Filter Cap, Choke Lever, Fuel Cock, Suction Port, Oil Drain Plug, Pump Drain Plug, Throttle Recoil Starter Grip Lever.

1.5" Clean Water Pump

Components include: Fuel Tank Cap, Fuel Tank, Air Filter, Discharge Port, Engine Switch, Oil Dipstick, Spark Plug, Muffler, Priming Water Filter Cap, Choke Lever, Fuel Cock, Suction Port, Oil Drain Plug, Pump Drain Plug, Throttle Recoil Starter Grip Lever.

Chemical Pump

Components include: Fuel Tank Cap, Throttle Lever, Choke Lever, Discharge Port, Fuel Valve, Recoil Starter Grip, Engine Switch, Oil Dipstick, Oil Drain Plug, Priming Water Filter Cap, Frame, Air Filter, Pump Drain Plug.

2"/3"/4"/6" Clean Water Pump

Components include: Fuel Tank Cap, Throttle Lever, Choke Lever, Discharge Port, Fuel Cock, Recoil Starter Grip, Engine Switch, Priming Water Filter Cap, Oil Dipstick, Frame, Suction Port, Pump Drain Plug, Air Filter, Muffler, Oil Drain Plug.

High Pressure Pump

(Illustrations employ the 2" high pressure pump as the example)

Components include: Priming Water Filter Cap, Frame, Fuel Tank Cap, Throttle Lever, Choke Lever, Fuel Valve, Discharge Port, Suction Port, Pump Drain Plug, Air Filter, Muffler, Recoil Starter Grip, Engine Switch, Oil Dipstick, Oil Drain Plug.

Sewage Pump

Components include: Fuel Tank Cap, Throttle Lever, Choke Lever, Fuel Valve, Discharge Port, Recoil Starter Grip, Engine Switch, Oil Dipstick, Oil Drain Plug, Priming Water Filter Cap, Frame, Air Filter, Suction Port, Pump Drain Plug, Muffler.

3. Control System

Fuel Lever

Set the fuel lever to the "OPEN" position for operation. When not operating the engine, set the fuel lever to the "CLOSE" position.

Visual: Fuel Lever with "CLOSE" and "OPEN" positions indicated.

Engine Switch

The engine switch is used for opening or closing the ignition circuit. Set the engine switch to the "OPEN" position to run the engine, and set it to the "CLOSE" position to stop the engine.

Visual: Engine Switch with "CLOSE" and "OPEN" positions indicated.

Choke Lever

The choke lever is used for opening and closing the choke of the carburetor. Set the choke lever to the "CLOSED" position for cold starting. Set the choke lever to the "OPEN" position for normal operation or warm starting.

Visual: Choke Lever with "CLOSED" and "OPEN" positions indicated.

Throttle Lever

Adjust the throttle lever to change the engine speed, thereby adjusting the discharge water flow. For a bigger water discharge, set the throttle lever to the "FAST" (HIGH) position; for a smaller water discharge, set the throttle lever to the "SLOW" (LOW) position.

Visual: Throttle Lever with "FAST" and "SLOW" positions indicated.

Recoil Starter

Pull the recoil starter grip to start the engine. Do not allow the starter grip to snap back against the engine; return it gently to prevent damage to the starter.

Visual: Recoil Starter Grip.

4. Pre-Operation Inspection

For your safety and to maximize the service life of your equipment, it is very important to perform pre-operation checks. If any issues are found, correct them before operating the pump. Never run the engine in a closed or poorly ventilated area due to poisonous carbon monoxide in exhaust gas. Keep the pump at least 1m away from walls and equipment to prevent fire hazards.

Routine Check

Look around and underneath the pump for signs of oil or gasoline leaks. Remove any excessive dirt or debris, especially from around the engine and ensure all parts are tightened.

Check The Suction And Discharge Hoses

Check the general condition of the hoses. Ensure they are in serviceable condition before connecting. The suction hose must be reinforced to prevent collapse. Check the sealing washer in the suction hose connector for good condition and ensure hose connectors and clamps are securely installed. Verify the strainer is in good condition and installed on the suction hose.

Check Engine Oil

Place the engine on a level surface and check the engine oil level. Screw out the oil dipstick, wipe it clean, and screw it back in fully. Remove the dipstick again to check the level against the marks. If the level is low, add the recommended oil to the upper mark. Operating with oil at the lower mark will cause engine damage.

Visual: Oil Dipstick, Oil Lower Mark, Oiling Hole.

Check Air Filter

A dirty air filter restricts airflow, reducing engine and pump performance. Remove the air filter housing by unscrewing the butterfly nut. If the element is dirty, clean it; if damaged, replace it. If it is an oil bath type, ensure it is properly seated after cleaning and oiling.

Visual: Air Filter Cover, Element, Air Filter Elbow.

Check The Fuel

Check the fuel level by removing the fuel tank cap. If the level is too low, add fuel, ensuring not to overfill past the fuel strainer shoulder. Refuel in a well-ventilated area with the engine cooled. Be careful not to spill fuel, as it can damage paint and plastic.

Visual: Fuel Tank Top, Fuel Upper Limit.

Fuel Recommendations

Unleaded gasoline is recommended for fewer engine and spark plug deposits and extended exhaust system life. Never use stale or contaminated gasoline or oil/gasoline mixtures. Avoid dirt or water in the fuel tank.

5. Operation

Safe Operating Precautions

To safely utilize the pump, understand its operation and controls. Review the "Safety Instruction" and "PRE-OPERATION INSPECTION" sections before first use. Exhaust contains poisonous carbon monoxide gas; avoid enclosed areas. Breathing carbon monoxide can cause unconsciousness or death.

Pump Placement

For best performance, place the pump near the water level and use hoses that are no longer than necessary. Minimizing suction head (placing the pump near the water level) reduces self-priming time. As head increases, pump output decreases.

Visual: Diagram showing Suction Head, Discharge Head, and Total Head.

Suction Hose Installation

Use a commercially available hose, hose connector, and the provided hose clamp to install the suction hose. Ensure the hose dimension is longer than the water suction port dimension. Minimum hose dimensions are specified. Use a hose clamp to securely fasten the hose connector to the suction port to prevent air and water leakage. Check the sealing washer's condition. Install the strainer on the other end of the suction hose and secure it with a hose clamp to prevent clogging by debris.

Visuals: Hose Connector, Hose Clamp, Suction Hose, Strainer, Sealing Washer, Coupling Assembly.

Discharge Hose Installation

Use commercially available hose and hose connector, and the provided hose clamp to install the discharge hose. Tighten the hose clamp securely to prevent the discharge hose from disconnecting under high pressure, which improves pump output.

Priming The Pump

Before starting the engine, fill the pump with water: unscrew the priming plug and fill the pump fully with clean water. Do not unscrew the priming plug during operation to avoid damage and injury. Reinstall and tighten the priming plug securely after priming. Dry operation will destroy the pump seal. If dry operation occurs, stop the engine immediately, allow it to cool, and then prime it.

Visual: Priming Water Filler Cap.

6. Starting The Engine

1. Screw off the priming plug and prime the pump with water until the pump chamber is full.
2. Move the fuel valve lever to the "ON" position. Visual: Fuel Cock, Fuel Valve Lever.
3. To start a cold engine, move the choke lever to the "CLOSED" position. Visual: Choke Lever.
4. Move the throttle lever away from the "SLOW" position about 1/3 of the way toward the "FAST" position. Visual: Throttle Lever.
5. Turn the engine switch to the "ON" position. Visual: Engine Switch.
6. Pull the starter grip lightly until resistance is felt, then pull it briskly. Do not allow the starter grip to snap back; return it gently. Visual: Starter Grip.
7. If the choke lever was moved to the CLOSED position, gradually move it to the OPEN position as the engine warms up. Visual: Choke Lever.
8. Setting engine speed: After starting, move the throttle lever to the FAST position for self-priming and check pump output. Pump output is controlled by adjusting engine speed; moving the throttle lever towards FAST increases output, and towards SLOW decreases it.

7. Stopping The Engine

To stop the engine in an emergency, turn the engine switch to the OFF position. Under normal conditions, follow this procedure:

1. Move the throttle lever to the "SLOW" position. Visual: Throttle Lever.
2. Turn the engine switch to "OFF" position. Visual: Engine Switch.
3. Turn the fuel valve lever to "OFF" position. Visual: Fuel Cock, Fuel Valve Lever.

After use, remove the pump drain plug and drain the pump chamber. Remove the filler cap and flush the pump chamber with clean, fresh water. Allow water to drain, then reinstall the plugs.

8. Maintenance

Proper engine maintenance ensures safe, economical, trouble-free, and eco-friendly operation. Periodically service the engine by following the maintenance schedule and routine inspection procedures.

Maintenance Schedule

Engine Oil Change

Drain used oil while the engine is warm for quicker and complete draining. Place a container below the engine. Allow oil to drain completely, then reinstall and tighten the drain plug. Dispose of used oil responsibly (recycling center or service station). Fill the engine with recommended oil to the upper limit on a level surface. Reinstall and tighten the oil dipstick.

Visual: Oil Drain Bolt, Oil Dipstick, Washer, Upper Mark.

Note: Used engine oil may cause skin cancer with prolonged contact. Wash hands thoroughly with soap and water after handling used oil.

Engine Oil Recommendations

Engine oil affects performance and service life. Do not use non-detergent or 2-stroke engine oils. Recommended oil: 4-stroke gasoline oil SE, SF grades under API service. Select oil based on local temperature. Recommended operating range: -5 to 40°C.

Air Filter Service

Clean or replace the air filter element regularly to maintain engine performance. Wash the element with detergent and warm water, or use a non-flammable solvent. Soak in clean engine oil until saturated, then squeeze out excess oil. Clean the air filter housing and rubber cushion. Prevent dust from entering the carburetor's air path.

Spark Plug Service

Recommended spark plugs: NGK BP6ES or equivalents. Using the wrong model can damage the engine. Remove the spark plug cap and clean around the base. Use a plug wrench to remove the spark plug. Measure the plug gap with a feeler gauge; it should be 0.70-0.80 mm. Replace if damaged. Check the spark plug gasket. Screw in the spark plug carefully by hand to avoid damaging the cylinder head thread. Tighten with a spark plug wrench, compressing the gasket (1/2 turn for new plugs, 1/8-1/4 turn for used plugs). Install the spark plug cap.

Visuals: Spark Plug Socket Wrench, Spark Plug Cap.

9. Storage

1. Remove priming plug and drain plug, flush the chamber with clean water, then reinstall the plugs.
2. Remove the carburetor drain plug and sediment cup. Open the fuel lever and completely drain fuel from the carburetor and fuel tank. Reinstall the sediment cup and drain plug. Visual: Washer, Drain Plug, Fuel Lever, O-Ring, Sediment Cup.
3. Change the engine oil.
4. Pour a tablespoon (5-10 cc) of clean engine oil into the cylinder. Crank the engine several revolutions to distribute oil. Reinstall the spark plug.
5. Pull the starter grip slowly until resistance is felt to close intake and exhaust valves, preventing moisture entry. Return the starter grip gently.
6. Wipe the pump and cover it with a dust-proof sleeve. Place it in a ventilated area, away from corrosive elements.

10. Troubleshooting

Engine

Engine Will Not Start

Engine Lacks Power

Water Pump

No Pump Output

Low Pump Output

11. Specifications

The following specifications and model types are mentioned in the document:

• Model Number: 72031
• Pump Types: 2" Sewage Pump, 4" Mud Pump, 2" Gas-Powered Water Pump w/ Hose Kit EPA.
• Sizes Mentioned: 150mm (6 inch).
• Other Numerical Data Listed: 7.2, 5.4, 6.5, 1, 511, 451, 439, 32, 50, 50, 7, 26, 30, 6.8, 6.5, 799, 609, 605, 76, 100, 100, 7, 26, 100, 389. (Note: The specific meaning or units for these numbers are not clearly defined in the provided text snippet.)