Power smart PSM2521SH

Questions and Answers

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jesseshepardAug 3, 2025
Why does my Power smart PSM2521SH engine fail to start?
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  Leah GatesAug 3, 2025
  The engine of your Power smart Lawn Mower might fail to start due to several reasons. Ensure the engine start/stop lever is engaged. Check if the spark plug wire is connected. Refill the tank with clean, fresh gasoline if the fuel tank is empty or contains stale fuel. Press the primer bulb to prime the engine. Inspect the spark plug and clean, adjust the gap, or replace if faulty. Also, ensure the fuel line is not blocked and clean it if necessary. If the engine is flooded, wait a few minutes before attempting to restart, and avoid priming it again.
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Heather OlsonAug 7, 2025
Why does my Power smart PSM2521SH Lawn Mower engine run erratic?
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  Karen CrossAug 7, 2025
  Your Power smart Lawn Mower engine might run erratically because the spark plug wire is loose, so connect and tighten it. There might be a blockage in the fuel line or the fuel is stale, so clean the fuel line and fill the tank with clean, fresh gasoline, also drain the carburetor bowl. If there is water or dirt in the fuel system, drain the fuel tank and refill with fresh fuel. A dirty air filter can also cause this issue, so clean or replace the filter.
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Michael CampbellAug 11, 2025
Why is my Power smart PSM2521SH Lawn Mower engine overheating?
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  Mark RiveraAug 11, 2025
  If your Power smart Lawn Mower is overheating, it could be due to a low engine oil level, so fill the crankcase with the proper oil. Another cause could be restricted airflow, so clean the area around and on top of the engine.
K
Kaylee KleinAug 15, 2025
How to fix a Power smart Lawn Mower that idles poorly?
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  Cynthia PayneAug 16, 2025
  Poor idling in your Power smart Lawn Mower can be caused by a spark plug that is fouled, faulty, or has a gap that is too wide, so reset the gap or replace the spark plug. It may also be caused by a dirty air cleaner, so clean or replace the filter.
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Mark MaciasAug 20, 2025
What to do if Power smart PSM2521SH will not mulch grass?
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  cassandra10Aug 20, 2025
  If your Power smart Lawn Mower isn't mulching grass, it's likely because the grass is wet. Avoid mowing when the grass is wet and wait until it's dry before cutting.
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Timothy HenryAug 25, 2025
What to do if Power smart PSM2521SH has excessive vibration or noise?
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  Christian JacksonAug 25, 2025
  If your Power smart Lawn Mower is vibrating or making excessive noise, it could be due to a loose or unbalanced blade, so tighten and balance the blade. Alternatively, the blade might be bent or damaged, in which case you should replace it.
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Walter JohnsonAug 28, 2025
Why does my Power smart PSM2521SH Lawn Mower leave an uneven cut?
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  Hannah MorrowAug 28, 2025
  An uneven cut with your Power smart Lawn Mower can occur if the grass is excessively high, so mow once at a high cutting height, then mow again at the desired height or make a narrower cutting path. Another reason may be a dull blade, so sharpen or replace the blade.

Summary

Technical Data

Introduction

Notice Regarding Emissions

Information regarding engine emission regulations and certifications.

Safety Information

General Safety Procedures

Danger: Carbon Monoxide

Hazards and precautions related to carbon monoxide poisoning from engine exhaust.

Warning: California Emissions

Warning about chemicals in exhaust known to cause cancer or birth defects.

Warning: Flammable Gasoline Vapors

Hazards associated with flammable and explosive gasoline vapors.

Warning: Hot Surfaces

Caution regarding high engine temperatures and hot surfaces during operation.

Caution: Engine Misuse

Warning about potential damage or shortened lifespan from improper engine use.

Important Safety Instructions

General Operation Safety

Guidelines for responsible and safe operation of the lawn mower.

Preparation Before Operating

Steps to prepare the operating area and the machine before use.

Operating Safety

Key safety procedures to follow during lawn mower operation.

Children Specific Safety

Safety considerations regarding children around the lawn mower.

Slope Specific Safety

Precautions for operating the mower safely on slopes.

Fire and Fuel Specific Safety

Safety instructions for handling fuel and preventing fires.

Hauling Safety

Guidelines for safely transporting the lawn mower.

Service Safety

Safety precautions to be taken during maintenance and repair.

Warning Label Instructions

Read Manual Warning

Instruction to read the manual carefully before using the machine.

Flying Objects Warning

Warning about keeping a safe distance from flying objects during operation.

Safety Shields Warning

Instruction not to remove safety shields while the engine is running.

Operator Hands;Feet Warning

Caution to pay attention to operator's hands and feet to avoid injury.

Flammable Fuel Warning

Warning that fuel is flammable and to keep it away from fire sources.

Toxic Gas Warning

Warning about toxic gas emissions and ventilation requirements.

Look Behind Warning

Instruction to look behind when backing up the mower.

Steep Slope Hazard Warning

Warning about the hazard of operating on steep slopes.

Repair Warning

Procedure for safe repair involving spark plug boot disconnection.

Hot Surfaces Warning

Caution regarding hot surfaces on the mower.

Operator Protection Warning

Recommendation to wear protective gear like glasses and ear plugs.

Bystander Safety Warning

Instruction to keep bystanders away from the operating area.

Danger Hands;Feet Warning Label

Specific danger label about keeping hands and feet away from the mower.

Knowing Your Lawn Mower

Lawn Mower Preparation

Unpacking Instructions

Steps for unpacking the lawn mower and its components.

Packing List

List of items included in the lawn mower package.

Attaching Handlebars

Instructions for assembling and attaching the lower and upper handlebars.

Side Discharge Chute Installation

Procedure for attaching the side discharge chute.

Grass Catcher Attachment

Instructions on how to attach the grass catcher.

Adjusting the Cutting Height

Operation

Gas and Oil Fill-Up

Procedure for filling the engine with gasoline and oil before first use.

Engine Oil Specifications

Details on recommended engine oil type, viscosity, and properties.

Engine Oil Check Method

Step-by-step guide on how to check the engine oil level.

Adding Gasoline

Instructions and safety warnings for adding gasoline to the fuel tank.

Engine Start;Stop Control

Explanation of the engine start/stop control mechanism for safe operation.

Starting the Engine

Detailed steps for starting the lawn mower engine.

Stopping the Engine

Procedure for safely shutting down the lawn mower engine.

Drive Control Bar Operation

How to use the drive control bar for self-propelled movement.

Mowing

Maintenance

Deck Care

Instructions for cleaning and maintaining the mower deck.

Mower Blade Maintenance

Guidance on blade sharpening, balancing, and replacement.

Checking Engine Oil Level

Procedure for checking the engine oil level before each use.

Changing or Adding Engine Oil

Steps for changing or adding engine oil to the crankcase.

Air Cleaner Maintenance

Routine maintenance procedures for the air cleaner element.

Spark Plug Maintenance

Instructions for inspecting, cleaning, and gapping the spark plug.

Maintenance Schedule

Storage

Troubleshooting

Exploded View and Parts List

Engine Exploded View and Parts List

Limited Warranty

Three (3) Years Limited Warranty

Details of the three-year limited warranty for home use products.

Warranty Limitations and Exclusions

Information on what is not covered by the limited warranty.

Making a Warranty Claim

Procedure and requirements for submitting a warranty claim.