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Craftsman C459-36426 - User Manual

Craftsman C459-36426
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CAUTION: Before using this
product, read this manual
and follow all safety rules
and operating instructions.
Operator’s Manual
• SAFETY
• ASSEMBLY
• OPERATION
• MAINTENANCE
• PARTS LIST
®
Sears Canada Inc., 290 Yonge Street, Toronto, On M5B 2C3
Visit our web: sears.ca
2/14/14
769-09724
21” LAWN MOWER
Model No. C459-36426

Table of Contents

Questions and Answers

  • K
    kimberlyandradeAug 15, 2025
    Why won't my Craftsman C459-36426 Lawn Mower engine start?
    • D
      Daniel WilsonAug 15, 2025
      If your Craftsman Lawn Mower engine won't start, several factors could be at play. First, ensure the blade control is engaged. Next, check that the spark plug boot is securely connected. If these aren't the issue, the fuel tank might be empty or contain stale fuel, requiring a refill with fresh gasoline. If your mower has a primer, make sure you've primed the engine correctly. A faulty spark plug could also be the culprit, so clean, adjust the gap, or replace it as needed. In case the engine is flooded, wait a few minutes before attempting to restart. Finally, a blocked fuel line could be the reason, and you should contact your Sears Parts & Repair Center to have it cleaned.
  • W
    Wendy MackAug 18, 2025
    Why does my Craftsman C459-36426 Lawn Mower have an uneven cut?
    • A
      Alexis PerryAug 18, 2025
      If your Craftsman Lawn Mower provides an uneven cut, start by checking the wheel positions. Adjust the cutting height lever on the right front and right rear wheels to the same position. Also, a dull blade can cause an uneven cut, so sharpen or replace the blade.
  • J
    Joseph NguyenAug 22, 2025
    Why does my Craftsman C459-36426 engine run erratic?
    • J
      Justin RiceAug 22, 2025
      If your Craftsman Lawn Mower engine runs erratically, there are several things to check. Start by ensuring the spark plug boot is securely connected and tightened. Stale fuel can also cause this issue, so replace it 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 could also be the problem; run the engine until it stops due to lack of fuel, then refill with fresh fuel. A dirty air cleaner might be the cause, so refer to the Air Cleaner section in the Engine Maintenance section. Lastly, a blocked fuel line could be the culprit, in which case you should contact your Sears Parts & Repair Center to have it cleaned.
  • A
    Angela YoungAug 25, 2025
    Why Craftsman C459-36426 wheels will not propel?
    • J
      Jacob CochranAug 26, 2025
      If your Craftsman Lawn Mower wheels will not propel, the belt may not be installed properly, so check the belt for correct pulley installation and movement. Debris might be clogging the drive operation, so clean it out. The belt could also be damaged or worn, so inspect and replace it if necessary.
  • C
    Cody ReidAug 28, 2025
    Why does my Craftsman C459-36426 Lawn Mower idle poorly?
    • K
      Kara OrtizAug 28, 2025
      If your Craftsman Lawn Mower idles poorly, the spark plug might be fouled, faulty, or have a gap that's too wide. Reset the gap or replace the spark plug. Alternatively, the air cleaner could be dirty, so refer to the Air Cleaner section in Engine Maintenance.
  • X
    xparkerSep 1, 2025
    What to do if my Craftsman Lawn Mower will not mulch grass?
    • V
      Vickie StanleySep 1, 2025
      If your Craftsman Lawn Mower is not mulching grass effectively, it could be due to a few reasons. Avoid mowing when the grass is wet; wait for it to dry. If the grass is excessively high, mow it first at a higher cutting height, then mow again at the desired height, or narrow the cutting path. A dull blade can also cause poor mulching, so sharpen or replace the blade.
  • C
    Christy EatonSep 4, 2025
    Why is my Craftsman Lawn Mower engine overheating?
    • S
      sarah23Sep 4, 2025
      If your Craftsman Lawn Mower engine is overheating, ensure the engine oil level is adequate by filling the crankcase with the proper oil. Also, check for any restrictions to airflow around the engine and clean the area around and on top of the engine.
  • J
    James ShawSep 7, 2025
    Why does my Craftsman Lawn Mower have excessive vibration?
    • C
      carlos76Sep 7, 2025
      If your Craftsman Lawn Mower is experiencing excessive vibration, the cutting blade might be loose or unbalanced. Tighten the blade and adapter, and balance the blade. Alternatively, the cutting blade could be bent, requiring replacement.
  • K
    kristina80Sep 12, 2025
    What to do if my Craftsman C459-36426 occasionally skips (hesitates)?
    • R
      ramirezeileenSep 12, 2025
      If your Craftsman Lawn Mower occasionally skips or hesitates, the spark plug gap might be too close. Adjust the gap, referring to the Spark Plug section in Engine Maintenance.

Summary

SAFETY INSTRUCTIONS

WARNING

General safety warnings for safe operation of the mower.

CALIFORNIA PROPOSITION 65

Warning about chemicals known to cause cancer and birth defects.

Your Responsibility

Operator's duty to read, understand, and follow safety instructions.

GENERAL OPERATION

Guidelines for safe and proper use of the machine.

SLOPE OPERATION

Safe operating procedures and precautions for mowing on slopes.

CHILDREN

Warnings and precautions regarding children's safety around the mower.

General Service

Safety precautions for maintenance and repair tasks.

DO NOT MODIFY ENGINE

Warning against altering the engine's governor setting for safety.

NOTICE REGARDING EMISSIONS

Information regarding the engine's compliance with emission regulations.

SPARK ARRESTOR

Requirement and information about the spark arrestor component.

SAFETY SYMBOLS

Explanation of safety symbols used on the machine and manual.

SLOPE GAUGE

ASSEMBLY

Handle

Instructions for assembling the handle of the lawn mower.

Attaching the Grass Catcher

Steps to attach the grass catcher bag to the mower.

Attaching Side Discharge Chute

Instructions for converting the mower to side discharge.

Cutting Height

Procedure for adjusting the cutting height of the mower.

Handle Pitch (If Equipped)

How to adjust the handle position for user comfort.

OPERATION

Blade Control

Explanation of how to operate the blade control handle.

Drive Control

How to engage and disengage the mower's drive system.

Cutting Height Adjustment Lever

Location and function of the levers for adjusting cutting height.

Mulch Plug

Information on using the mulch plug for recirculating clippings.

Recoil Starter

Instructions on how to start the engine using the recoil starter.

Side Discharge Cover

How to attach the side discharge cover for grass clipping discharge.

Trail Shield

Importance and function of the trail shield for operator protection.

Deck Wash (if equipped)

How to use the deck wash system for cleaning the mower deck.

Oil Fill Cap;Dipstick

Reference to the engine manual for oil-related information.

Fuel Cap

Location of the fuel cap for adding gasoline.

Before Starting Engine

Preparation steps before starting the engine, including safety checks.

Starting Engine

Step-by-step instructions for starting the mower's engine.

To Stop Engine

How to safely stop the mower's engine and blade.

Using Your Lawn Mower

General advice on using the lawn mower effectively and safely.

Using as Mulcher

Instructions for mulching grass clippings.

Using Grass Catcher

How to use the grass catcher to collect clippings.

SERVICE AND MAINTENANCE

MAINTENANCE SCHEDULE

A schedule of recommended maintenance tasks and intervals.

GENERAL RECOMMENDATIONS

General advice for maintaining the mower and adhering to safety rules.

ENGINE MAINTENANCE

Key maintenance jobs required for optimal engine performance.

LUBRICATION

Instructions for lubricating various parts of the mower.

Belt Care

Information regarding the mower's drive belt and service.

Deck Wash

How to use the deck wash system for cleaning the mower's underside.

Blade Care

Procedures for inspecting, sharpening, balancing, and replacing the cutting blade.

OFF-SEASON STORAGE

Preparing The Engine

Steps to prepare the engine for long-term storage.

Preparing The Lawn Mower

Steps to prepare the entire mower for off-season storage.

Removing From Storage

Procedures for taking the mower out of storage and preparing it for use.

TROUBLESHOOTING

WARRANTY STATEMENT

EMISSION CONTROL SYSTEM WARRANTY STATEMENT

California and United States Emission Control Defects Warranty Statement

Specifics of emission control warranty for California and US models.

Owners Warranty Responsibilities

Owner's duties regarding the emission control system warranty.

Sears Emission Control Defects Warranty Provisions

Detailed provisions of the emission control system warranty.

Craftsman C459-36426 Specifications

General IconGeneral
BrandCraftsman
ModelC459-36426
CategoryLawn Mower
LanguageEnglish

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