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Patriot LM 51 SP - User Manual

Patriot LM 51 SP
99 pages
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Travní sekačka se spalovacím motorem
Trávna kosačka so spaľovacím motorom
Lawn Mower with Combustion Engine
Rasenmäher mit Verbrennungsmotor
LM 46 SP
LM 46 SP elstart
LM 51 SP
LM 51 SP elstart
Návod k použití
Návod na použitie
Instructions of Use
Gebrauchsanleitung
Mountfield a.s., Mirošovická 697
CZ-25164 Mnichovice
10/2018 - No. 714D

Table of Contents

Questions and Answers

  • M
    Mary AndradeAug 5, 2025
    Why won't my Patriot LM 51 SP Lawn Mower engine start?
    • J
      Jennifer HamiltonAug 5, 2025
      Several factors can prevent your Patriot Lawn Mower engine from starting. Ensure the choke lever is correctly positioned for the current conditions. Check if the fuel tank is empty and refill if necessary. A dirty air cleaner element, loose spark plug, disconnected spark plug wire, incorrect spark plug gap, defective spark plug, or a flooded engine can also be culprits. Tighten the spark plug to 25-30 Nm, install the spark plug wire, set the gap between the electrodes at 0.7 to 0.8 mm, or charge the battery. If the ignition module is faulty, it is recommended to contact an authorized service center.
  • S
    Steve LewisAug 10, 2025
    What to do if my Patriot LM 51 SP Lawn Mower vibrates abnormally?
    • S
      scottriveraAug 10, 2025
      Abnormal vibration in your Patriot Lawn Mower can be due to a loose or unbalanced cutting assembly. Make sure to tighten and balance the blade.
  • A
    Allen JohnsonAug 14, 2025
    Why is my Patriot LM 51 SP Lawn Mower engine difficult to start or losing power?
    • J
      Jessica PetersonAug 14, 2025
      If your Patriot Lawn Mower engine is hard to start or loses power, the issue might be contaminated fuel (dirt, water, or stale fuel). Drain the old fuel, clean the tank, and refill with fresh fuel. Also, check the fuel tank cap's vent hole for blockages and clean or replace the cap if needed. A dirty air cleaner element can also cause these symptoms; clean it to resolve the issue.
  • A
    Abigail WrightAug 18, 2025
    What to do if Patriot Lawn Mower engine overheats?
    • L
      lwelchAug 19, 2025
      If your Patriot Lawn Mower engine is overheating, check for obstructions restricting cooling airflow. Remove any debris from the slots in the shroud, blower housing, and air passages. Also, ensure the correct spark plug and cooling fins are installed on the engine.
  • J
    Jeremy WrightAug 22, 2025
    Why does my Patriot LM 51 SP engine operate erratically?
    • T
      Tanya FloresAug 22, 2025
      An erratic engine operation in your Patriot Lawn Mower can stem from a defective spark plug or an incorrect spark plug gap. If the spark plug is defective, you should install a new, correctly gapped plug. If the spark plug gap is incorrect, set the gap between the electrodes to 0.7 to 0.8 mm. A dirty air cleaner element can also cause this; clean it.
  • D
    Dr. Vanessa PierceAug 27, 2025
    How to fix poor idling on a Patriot LM 51 SP?
    • R
      Raymond MaddenAug 27, 2025
      Poor idling in your Patriot Lawn Mower can be caused by a dirty air cleaner element, blocked air slots in the engine shroud, or blocked cooling fins and air passages under the engine blower housing. Remove debris from the slots, cooling fins, and air passages to resolve this issue.
  • H
    huffjamesAug 31, 2025
    What causes a Patriot LM 51 SP engine to skip at high speed?
    • P
      pvanceAug 31, 2025
      If your Patriot Lawn Mower engine skips at high speed, the gap between the spark plug electrodes may be too close. Set the gap between the electrodes to 0.7 to 0.8 mm.

Summary

Symbols Marked on the Product

General Safety Rules

Technical Data

Assembly

Folding Handle Assembly

3 IN 1 Functionality

Operating Instructions

Starting the Engine

Instructions for starting the engine using manual or electric methods.

Operation Procedures and Stopping

Safe operation practices, control lever functions, and how to properly stop the engine and blade.

Mowing Techniques and Features

Guidance on self-drive feature, best mowing practices, and handling foreign objects.

Grass Catcher and Height Adjustment

Maintenance Instructions

Engine Air Cleaner Maintenance

Cutting Blade Maintenance

Battery Charging and Care

Storage Instructions

Troubleshooting

Patriot LM 51 SP Specifications

General IconGeneral
Power SourcePetrol
Cutting Width51 cm
Self-PropelledYes
Cutting Height AdjustmentCentral
Cutting Height25-75 mm
Grass CollectorYes
Grass Collector Capacity60 L
MulchingYes
Side DischargeYes
Wheel SizeFront: 20 cm, Rear: 28 cm

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