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Craftsman 247.375900 - User Manual

Craftsman 247.375900
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Operator's Manual
®
21" LAWN MOWER
Model No. 247,375900
CAUTION" Before using this
product, read this manual and
follow all safety rules and operating
instructions,
o SAFETY
o ASSEMBLY
o OPERATION
o MAINTENANCE
o ESPANOL
Sears Brands Management Corporation, Hoffman Estates, IL 60179, U.S.A.
Visit our website: www.craftsman.com FormNo.769-09383
(November25,2013)

Table of Contents

Questions and Answers

  • J
    jamie22Aug 16, 2025
    Why my Craftsman 247.375900 Lawn Mower engine fails to start?
    • R
      rwareAug 16, 2025
      If your Craftsman Lawn Mower engine won't start, several factors could be the cause. First, make sure the blade control is engaged. Check that the spark plug boot is connected securely. The fuel tank may be empty or contain stale fuel, so fill it with clean, fresh gasoline. If your mower has a primer, prime the engine as instructed in the Operation section. Inspect the spark plug; it may need cleaning, gap adjustment, or replacement. If the engine is flooded, wait a few minutes before attempting to restart it. Finally, a blocked fuel line could be the issue; in this case, contact your Sears Parts & Repair Center to have the fuel line cleaned.
  • S
    Steven EdwardsAug 19, 2025
    Why Craftsman Lawn Mower engine runs erratic?
    • K
      Kristen PenaAug 19, 2025
      If your Craftsman Lawn Mower engine is running erratically, start by checking the spark plug boot to ensure it's connected and tightened. Stale fuel can also cause this issue, so refill the tank with clean, fresh gasoline. Make sure the vent in the gas cap isn't plugged; clear it if necessary. Water or dirt in the fuel system can also lead to erratic running; run the engine until it stops from lack of fuel, then refill with fresh fuel. A dirty air cleaner could be the culprit. Finally, a blocked fuel line could be the issue; in this case, contact your Sears Parts & Repair Center to have the fuel line cleaned.
  • C
    Cory MurilloAug 22, 2025
    Why Craftsman 247.375900 will not self propel?
    • W
      William StewartAug 22, 2025
      If your Craftsman Lawn Mower won't self-propel, first check the belt to ensure it's properly installed on the pulleys and moving correctly. Debris clogging the drive operation can also be a cause; stop the engine, disconnect the spark plug boot, and clean out any debris. Inspect the belt for damage or wear and replace it if necessary. Finally, the drive control may be out of adjustment; in this case, you should adjust the drive control.
  • G
    Gina CoxAug 26, 2025
    Why Craftsman 247.375900 Lawn Mower has an uneven cut?
    • A
      Angela MercerAug 26, 2025
      An uneven cut with your Craftsman Lawn Mower is often due to a dull blade. Sharpen or replace the blade to resolve this issue.
  • E
    Eric YangAug 28, 2025
    Why Craftsman Lawn Mower idles poorly?
    • E
      Eric GrayAug 28, 2025
      Poor idling in your Craftsman Lawn Mower can be caused by a spark plug that is fouled, faulty, or has a gap that is too wide. Reset the gap or replace the spark plug. Another potential cause is a dirty air cleaner.
  • A
    Ana IbarraAug 31, 2025
    How to fix excessive vibration in Craftsman Lawn Mower?
    • L
      Lisa TaylorAug 31, 2025
      Excessive vibration in your Craftsman Lawn Mower can be due to a loose or unbalanced cutting blade. Tighten the blade and adapter, and balance the blade. Another cause could be a bent cutting blade, which would require replacement.
  • D
    Denise Neal MDSep 3, 2025
    What to do if Craftsman 247.375900 Lawn Mower engine overheats?
    • D
      Dr. Robert CarsonSep 3, 2025
      If your Craftsman Lawn Mower engine is overheating, check the engine oil level and fill the crankcase with the proper oil if it's low. Also, ensure that there is no restriction to air flow around the engine; clean the area around and on top of the engine.
  • N
    Nicole LawsonSep 6, 2025
    Why Craftsman 247.375900 Lawn Mower will not mulch grass?
    • E
      eparkerSep 6, 2025
      Your Craftsman Lawn Mower may not mulch grass effectively if the grass is wet, so avoid mowing in wet conditions and wait until it's dry. Excessively high grass can also prevent proper mulching; mow once at a high cutting height, then mow again at the desired height, or make a narrower cutting path. A dull blade will also hinder mulching; sharpen or replace the blade.
  • A
    Anne WhiteSep 9, 2025
    Why Craftsman Lawn Mower occasionally skips (hesitates)?
    • K
      Kevin VegaSep 9, 2025
      Occasional skipping or hesitation in your Craftsman Lawn Mower can occur if the spark plug gap is too close. Adjust the gap.
  • C
    charlesbishopSep 12, 2025
    Why Craftsman 247.375900 has high pullback effort?
    • B
      Benjamin FergusonSep 12, 2025
      High pullback effort on your Craftsman Lawn Mower can happen if you're pulling the mower backwards before the transmission disengages. Allow the unit to roll forward slightly without the drive lever(s) engaged before pulling backwards.

Summary

Safety Instructions

Slope and Child Safety

Guidelines for safe mowing on slopes and child supervision.

Assembly

Adjusting Cutting Height and Handle Pitch

Operation

Controls and Starting Procedures

Overview of controls, starting, and stopping the engine.

Fueling and Oil Procedures

Instructions for filling fuel and oil, and checking oil levels.

Mowing Operations

Service and Maintenance

Maintenance Schedule

Chart outlining required maintenance tasks and intervals.

Engine and Fuel System Maintenance

Procedures for engine, spark plug, air filter, and fuel filter maintenance.

Oil, Lubrication, and Blade Care

Deck Wash and Drive Adjustment

Off-Season Storage

Troubleshooting

Craftsman 247.375900 Specifications

General IconGeneral
BrandCraftsman
Model247.375900
CategoryLawn Mower
LanguageEnglish

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