TOMAHAWK

Register Your Equipment

Thank you for purchasing TOMAHAWK equipment! Your product is covered by the TOMAHAWK Warranty policy. Register your product to activate your warranty, receive important product updates, and access streamlined customer service.

Included with Registration:

• ✅ Equipment Warranty Activation
• ✅ Product Updates
• ✅ Streamlined Customer Service
• ✅ Exclusive Discounts and Sales

Steps to Register Your Equipment:

1. Visit www.tomahawk-power.com
2. Choose "Product Registration" at the bottom of the page.
3. Enter your equipment's serial number.
4. Provide all required information.
5. Submit Registration.

Equipment Resources

Tomahawk Customer Service provides access to essential resources to keep your job-site running smoothly. Visit www.tomahawk-power.com for:

How To Video Library

Access equipment assembly instructions, troubleshooting tips, and more.

Manual and Assembly Guide Library

Find lost operations manuals or specific spare parts.

Service Requests

Submit a Service Request for quick fixes or service center referrals. A Tomahawk Technician will respond promptly.

Safety Information

This manual provides information and procedures to safely operate and maintain this equipment. Read, understand, and observe all safety instructions.

Keep this manual with the equipment. For additional copies, contact Tomahawk Power LLC or visit www.tomahawk-power.com.

This equipment can present hazards if improperly operated or serviced. Follow operating instructions carefully. Contact Tomahawk Power for any questions.

The information in this manual is based on production at the time of publication. Tomahawk Power reserves the right to make technical modifications without notice.

Reproduction or distribution without written permission from Tomahawk Power is prohibited and may be prosecuted.

Safety Alert Symbols

This manual uses DANGER, WARNING, CAUTION, and NOTE callouts:

• ⚠️: Safety alert symbol used to alert you to potential personal injury hazards.
• ? DANGER: Imminently hazardous situation; failure to avoid will result in death or serious injury.
• ⚠️ WARNING: Potentially hazardous situation; failure to avoid could result in death or serious injury.
• ❗ CAUTION: Potentially hazardous situation; failure to avoid may result in minor or moderate injury.
• ❗ CAUTION (without symbol): May result in property damage.

1.1 Laws Pertaining to Spark Arresters

State Health Safety Codes and Public Resources Codes may require spark arresters on internal combustion engines. Consult your engine distributor or local Health and Safety Administrator for compliance.

1.2 Operating Safety

WARNING: Equipment operated improperly or by untrained personnel can be dangerous. Read this manual and the engine manual thoroughly. Inexperienced operators must receive instruction before use.

• NEVER allow untrained individuals to operate this equipment.
• NEVER touch the engine or muffler while hot; they can cause burns.
• NEVER use unrecommended accessories or attachments.
• NEVER leave the machine running unattended.
• ALWAYS ensure the operator is familiar with safety precautions and operation techniques.
• ALWAYS wear ANSI Z87.1-approved safety goggles or glasses, and a face shield if needed. Use a dust mask in dusty conditions. Wear non-skid safety shoes, hardhat, gloves, and hearing protection as appropriate.
• ALWAYS close the fuel valve when the machine is not in use.
• ALWAYS store equipment properly in a clean, dry location out of reach of children.
• ALWAYS operate with all safety devices and guards in place and working. DO NOT modify or remove them.
• ALWAYS read, understand, and follow procedures in the Operator's Manual before operating.

1.3 Safety while using Combustion Engines

DANGER: Internal combustion engines present special hazards. Read engine owner's manual and safety guidelines. Failure to follow could result in severe injury or death.

• DO NOT run indoors or in enclosed areas without adequate ventilation due to carbon monoxide risk.
• DO NOT smoke while operating or refueling.
• DO NOT refuel a hot or running engine.
• DO NOT refuel near open flames.
• DO NOT spill fuel.
• DO NOT run the engine near open flames.
• ALWAYS refill the fuel tank in a well-ventilated area.
• ALWAYS replace the fuel tank cap after refueling.
• ALWAYS check fuel lines and tank for leaks before starting.
• DO NOT run if fuel leaks are present or fuel lines are loose.

1.4 Service Safety

WARNING: Poorly maintained equipment is a safety hazard. Periodic maintenance and repairs are necessary for safe operation.

• DO NOT attempt to clean or service a running machine; rotating parts can cause severe injury.
• DO NOT crank a flooded engine with the spark plug removed; fuel can be ejected.
• DO NOT test for spark on a flooded engine; stray sparks can ignite fumes.
• DO NOT use gasoline or flammable solvents for cleaning in enclosed areas; fumes can be explosive.
• ALWAYS keep the area around the muffler free of debris to prevent fire.
• ALWAYS replace worn or damaged components with genuine Tomahawk Power spare parts.
• ALWAYS disconnect the spark plug before servicing gasoline engines to prevent accidental start-up.
• ALWAYS keep the machine clean and labels legible. Replace missing or hard-to-read labels.
• ALWAYS check for damaged parts before each use. Ensure the equipment operates properly. Replace damaged or worn parts immediately. Never operate with a damaged part.
• ALWAYS inspect the machine before storage and before re-use. Store in a dry, secure place out of reach of children.
• ALWAYS use only manufacturer-recommended accessories.

Technical Specifications

Figure-2: Pump Components Diagram Description

This diagram shows the main components of the water pump:

• Fuel Tank
• Honda Engine
• Air Cleaner
• Engine Muffler
• Check Valve (Under Suction Fitting)
• Drain Plug
• Vibration Isolation Mounts

Before Starting

3.1 Recommended Fuel

Use unleaded automotive gasoline.

3.2 Starting Checklist

Ensure the following before starting:

• Fuel level is adequate.
• Engine oil level is correct.
• All safety devices and guards are in place.
• Area is clear of flammables and obstructions.

Operating Controls

The engine controls are located at the engine end of the pump frame.

Figure-3: Control Levers and Switches Diagram Description

This diagram illustrates the operating controls:

• Throttle Lever: Controls engine speed.
• Choke Lever: Used for cold weather starting.
• Fuel Shutoff Valve: Prevents fuel spills.
• Recoil Starter Hand Grip: Used to start the engine manually.
• ON/OFF Switch: Located on the recoil starter shroud, turns the engine on or off.

4.2 Check the Engine Oil Level

CAUTION: Engine oil is critical for performance and service life. Non-detergent and 2-stroke oils are not recommended. Check the oil level with the engine on a level surface and stopped.

4.3 Motor Oil

Use Honda 4-stroke oil or an equivalent high detergent, premium quality motor oil certified to meet or exceed U.S. automobile manufacturer's requirements (Service Classification SG, SF). SAE 10W/30 is recommended for general use. Other viscosity grades may be used based on ambient temperature.

Figure-4: Viscosity Grade Chart Description

This chart shows recommended motor oil viscosity grades based on ambient temperature. It includes single-grade oils (5W, 10W, 20W, #20, #30, #40) and multi-grade oils (10W-30, 10W-40). The temperature scale ranges from -20°C to 40°C (-4°F to 104°F).

4.4 Checking Oil

To check the oil level:

1. Ensure the engine is on a level position.
2. Remove and wipe clean the oil filler cap/dipstick.
3. Insert the dipstick into the oil filler neck without screwing it in.
4. Remove the dipstick and check the oil level.
5. If low, fill to the top of the oil filler neck with recommended oil.
6. Reinstall the oil filler cap/dipstick.

Figure-5: Oil Filler Cap/Dipstick Diagram Description

This diagram shows the oil filler cap/dipstick being removed to check the oil level against the "UPPER LIMIT" mark.

Starting and Operating

4.5 Check Engine Fuel

WARNING: Review all warnings to prevent fire hazards. Do not refill while the engine is running or hot. Close fuel shutoff valve before refueling. Keep fuel away from open flames and smoking materials. Wipe off spilled fuel. Avoid prolonged contact with skin or breathing of vapor. Keep out of reach of children.

4.6 Check Fuel Level

Remove the fuel tank cap. If the fuel level is low, refill with unleaded automotive gasoline.

5.1 Pre-Start Checks

WARNING: Keep the area clear of flammables or other hazardous materials.

Check the following before starting the engine:

• Fuel leakage from fuel hose, sediment cup, etc.
• Bolts and nuts for looseness; check components for damage or breakage.
• Centrifugal pump surroundings.
• Keep the centrifugal pump at least three (3) feet (one [1] meter) away from buildings or other structures.
• Operate only in a dry, well-ventilated area.
• Keep the exhaust pipe clear of foreign objects.
• Keep the centrifugal pump away from open flame.
• Keep the centrifugal pump on a stable and level surface.
• Do not block centrifugal pump air vents.

5.2 Starting and Operating the Engine

1. Refer to the Honda engine owner's manual.
2. Put the fuel valve in the ON position.
3. Move the choke lever to the closed position. (Note: Choke may not be needed if the engine is warm or air temperature is high.)
4. Set the ON/OFF switch to ON.
5. Move the throttle lever slightly to the left.
6. Pull the starter grip lightly until resistance is felt, then pull briskly. (Note: Do not let the starter grip snap back; return it gently.)
7. As the engine warms up, gradually move the choke lever to the OPEN position.

5.3 Using the Centrifugal Pump

1. Connect suction and discharge hoses. Ensure the suction hose has a strainer.
2. Remove the priming plug from the top of the pump and fill the chamber with water.
3. Operate the engine at idle speed for 3 to 5 minutes.
4. After the engine warms up, move the throttle lever to the operating speed.

5.4 Stopping the Centrifugal Pump

1. Move the throttle lever fully to the right.
2. Set the ON/OFF switch to OFF.
3. Turn the fuel valve to the OFF position.

Changing Engine Oil

6.1 Oil Alert

The oil alert sensor stops the engine if the oil level falls below a predetermined level. If the engine stops automatically, check and refill the oil to the upper level. If the engine does not start, check the oil level.

6.2 Changing Engine Oil

Perform an initial oil change after the first twenty (20) hours of use. Thereafter, change oil every 200 hours or as directed on the oil packaging.

• Check for proper used oil disposal methods. Do not pour down drains or into streams. Follow local regulations.
• Drain the oil while the engine is warm for complete draining.
• Remove the oil filler dipstick/cap and drain plug. Allow oil to drain.

Figure-6: Oil Drain Diagram Description

This diagram shows the location of the drain plug and the oil filler cap.

• Install the drain plug and tighten securely.
• Refill with recommended oil.
• After filling, check the oil level.
• When oil reaches the upper limit, install the oil filler dipstick/cap.

Engine oil capacity: 1.1 liters (1.16 U.S. Quart)

Figure-7: Filling Oil Diagram Description

This diagram shows the oil filler cap/dipstick being inserted to check the oil level against the "UPPER LIMIT" mark.

Maintenance

Maintain the centrifugal pump in peak operating condition by following this schedule:

Troubleshooting

Use these tables to isolate centrifugal pump faults. If the engine fails to start after several attempts, contact your Tomahawk pump dealer.

Limited Warranty

Tomahawk Power LLC warrants to the original purchaser that the product will be free from material defects in materials and workmanship for a period of 1 year from the date of purchase, normal wear and tear excepted. This warranty is valid only if the installation and use are strictly in accordance with product instructions. No other warranties, express or implied, are provided.

If the product does not comply with this warranty, Tomahawk Power will, at its option, replace the product or component or refund the purchase price (less shipping). This limited warranty is not transferable.

Limitations on the Warranty

This limited warranty does not cover:

• Normal wear and tear.
• Damage from abuse, neglect, misuse, accident, or other causes.
• Damage from misapplication, overloading, or improper installation.
• Improper maintenance and repair.
• Product alteration by anyone other than Tomahawk Power, except for alterations made per product instructions.

Obligations of Purchaser

Retain your product purchase receipt to verify the date of purchase and original ownership. To make a warranty claim, contact Tomahawk Power at (866) 577-4476, identify the product by make and model number, and follow the provided claim instructions. The product and receipt must be provided for claim processing. Returned products become Tomahawk Power's property. You are responsible for return shipping costs.

Remedy Limits

Product replacement or a refund of the purchase price is your sole remedy. Tomahawk Power shall not be liable for service or labor charges, damage to property, or any indirect, incidental, or consequential damages related to improper use, installation, or maintenance.

Assumption of Risk & Governing Law

You acknowledge and agree that any use of the product for purposes other than specified is at your own risk.

This limited warranty grants specific legal rights, which may vary by state. It is governed by the laws of the State of California. State courts in San Diego County, California, have exclusive jurisdiction for disputes.

Tomahawk Product Catalog

Tomahawk offers a wide range of equipment for various job-site needs.

Compaction Equipment

Finishing Equipment

Generators

Welding / Power Equipment

Pest Control Equipment

And More

Contact Us

Have questions? We're here to help!

Email us at sales@tomahawk-power.com

Visit www.tomahawk-power.com

Sales Support: (866) 577-4476

Equipment Support: (866) 577-4476

Tomahawk Power, LLC, San Diego, CA

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