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Stihl RM 248 - User Manual

Stihl RM 248
136 pages
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STIHL RM 248, 253
Gebrauchsanleitung
Instruction Manual
Notice d’emploi
Istruzioni d’uso
Handleiding

Table of Contents

Questions and Answers

  • N
    Nicole CrossJul 28, 2025
    How to start a Stihl Lawn Mower if the engine cannot be started?
    • M
      Mark MurphyJul 28, 2025
      If the Stihl Lawn Mower engine won't start, make sure the control bar for mowing is pressed. If it is not the reason, check the fuel level and refuel if necessary. Also, ensure you're using fresh, good-quality unleaded petrol. The engine won't start if the resistance at the blade is too great, so set a higher cutting height or start the engine in lower grass.
  • Q
    qortizAug 4, 2025
    Why won't my Stihl Lawn Mower engine start?
    • K
      kperezAug 4, 2025
      If the Stihl Lawn Mower engine won't start, make sure the control bar for mowing is pressed. Refer to the instruction manual for the correct starting procedure. Also, check if the fuel tank is empty and refuel if needed. Other potential causes include a blocked fuel line (consult a STIHL specialist dealer), inferior, dirty, or old fuel (use fresh, good-quality unleaded petrol), a dirty air filter (consult a STIHL specialist dealer), a detached spark plug socket (connect the spark plug socket and check the connection), a dirty, damaged spark plug, or incorrect electrode gap (clean or replace the spark plug and adjust the electrode gap). Finally, too much resistance at the blade may prevent starting (set a higher cutting height and start in lower grass).
  • S
    Steven FernandezAug 12, 2025
    Why is my Stihl RM 248 Lawn Mower engine difficult to start or losing power?
    • J
      jnortonAug 12, 2025
      If your Stihl Lawn Mower's engine is hard to start or its power is declining, start by cleaning the lawn mower housing. Adjust the cutting height or mow more slowly. Also, empty the fuel tank and clean the fuel line and carburettor. Clean or replace the spark plug. Ensure the engine oil level is correct, adding or changing oil if needed, and clean the cooling ribs.
  • A
    andrewlewisAug 19, 2025
    What to do if my Stihl RM 248 Lawn Mower vibrates excessively?
    • A
      Andrea Morris DDSAug 19, 2025
      Excessive vibration in your Stihl Lawn Mower can be due to a damaged blade (replace the blade) or a blade that is not correctly attached (attach the blade properly).

Summary

Safety Precautions

Warning Symbols

Explains the meaning of general safety warning symbols (follow instructions, read manual, observe warnings).

User Requirements and Qualifications

Outlines physical, mental, and training requirements for safe operation.

Safe Condition of the Blade

Specifies requirements for the blade to be considered safe, including sharpness and balance.

Fuel and Refuelling Safety

Covers hazards of petrol, refuelling procedures, and first aid for contact.

Safe Working Practices

Provides guidelines for safe operation, including starting, mowing on slopes, and visibility.

Safe Working Practices (cont.)

Continues safety advice on motorstop, turning blades, and vibrations.

Cleaning, Maintenance & Repair Safety

Details safety measures for cleaning, maintenance, and repair, including blade handling.

Preparing for Operation

Assembling the Lawn Mower

Refuelling the Lawn Mower

Refuelling Procedure

Detailed steps for safely refuelling the lawn mower with petrol.

Adjusting for User Comfort

Starting and Stopping the Engine

Starting the Engine

Step-by-step guide on how to start the lawn mower engine.

Stopping the Engine

Instructions on how to safely stop the lawn mower engine.

Checking the Lawn Mower

Operating the Lawn Mower

After Finishing Work

Transporting the Lawn Mower

Storing the Lawn Mower

Cleaning the Lawn Mower

Maintenance

Blade Removal and Attachment

Step-by-step guide for removing and reattaching the lawn mower blade.

Blade Sharpening and Balancing

Information on how to sharpen and balance the blade, recommending professional service.

Repairing the Lawn Mower

Repairing Guidelines

Advises against user repair and recommends consulting a specialist dealer for damages.

Troubleshooting

Remedying Common Faults

A table listing common faults, their causes, and recommended remedies.

Remedying Common Faults (cont.)

Continues the fault/cause/remedy table for issues like vibration and cutting performance.

Spare Parts and Accessories

Stihl RM 248 Specifications

General IconGeneral
TypePush lawn mower
Cutting width460 mm
Grass catcherYes
Product colorBlack, Orange
Uncertainty K2 m/s²
Housing materialSteel
Number of wheels4 wheel(s)
Rotational speed2900 RPM
Maximum lawn area1200 m²
Mulching function-
Sound power level96 dB
Vibration emission4 m/s²
Engine displacement139 cm³
Sound pressure level83 dB
Front wheels diameter- mm
Maximum cutting height75 mm
Minimum cutting height25 mm
Grass collecting volume55 L
Power sourceGasoline
Weight and Dimensions IconWeight and Dimensions
Weight26000 g

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