Murray 20-inch manual Blade Service, HOW to Remove the Blade, HOW to Sharpen the Blade

Page 18

MAINTENANCE

 

 

BLADE SERVICE

6. Mount the blade with the curved edges to-

WARNING: Before you inspect

ward the housing. If the blade is upside

down, the blade will not cut correctly and

the blade or the blade adapter,

can cause an accident.

 

disconnect the wire to the spark

 

7. Fasten the blade with the original wash-

plug. If the blade hits an object,

stop the engine. Disconnect the

ers and bolt. Make sure the outside rims

wire to the spark plug. Check the

of the Belleville washers are toward the

unit for damage.

blade (Figure 13).

 

Frequently check the blade for wear or dam-

8. Tighten the bolt that holds the blade to a

torque of 30 foot pounds.

 

age such as cracks. Frequently check the bolt

 

that holds the blade. Keep the bolt tight. If the

WARNING: Always keep the bolt

blade hits an object, stop the engine. Discon-

that holds the blade tight. A loose

nect the wire to the spark plug. Check the

bolt or blade can cause an acci-

blade adapter for damage. Check for a bent or

dent.

 

 

damaged blade, a badly worn blade, or other

 

 

 

 

 

damage. Before you operate the unit, dam-

 

 

 

aged parts must be replaced with factory re-

 

 

 

placement parts. For safety, replace the blade

 

 

 

every two years. Keep a sharp edge on the

 

 

 

blade. A blade that is not sharp will cause the

 

 

 

ends of the grass to become brown. Remove

 

 

 

the blade as follows.

 

 

 

HOW TO REMOVE THE BLADE

Blade Adapter

 

 

WARNING: Before you remove

 

 

Blade

the blade, disconnect the wire to

 

 

 

the spark plug. The blade has

 

Belleville

sharp edges. When you hold the

 

blade, use gloves or cloth materi-

 

Washer

al to protect your hands.

 

Washer

1. Drain the fuel tank.

Blade Adapter

 

 

2. Lift the side of the mower that has the

Bolt

 

 

 

muffler or spark plug.

 

 

 

3. Use a piece of wood to keep the blade

 

 

 

from rotating.

 

Mulching Blade

4. Remove the bolt that holds the blade.

 

 

 

 

5. Check the blade according to the ”Blade

 

Belleville Washer

Service” instructions. Replace a badly

 

worn or damaged blade with a factory re-

 

Flat Washer

Figure 13

placement blade.

 

Bolt

 

 

 

 

HOW TO SHARPEN THE BLADE

WARNING: Vibration is the result if the blade is not correctly bal- anced. A blade that is damaged with cracks can break and cause an accident.

1.Sharpen the blade two times a year or ev- ery 25 hours.

2.If the blade is on the unit, do not sharpen. Remove the blade according to the in- structions in ”How To Remove The Blade”.

3.Clean the blade with a brush, soap, and water. Check the blade. Look for cracks, nicks, or other damage. Replace a blade that is badly worn, bent, or damaged with a factory replacement blade.

4.Sharpen the blade with a file. Make sure you keep the original beveled cutting edge (Figure 14).

(Continued following page)

F–040406L

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Contents Models MURRAY, INC. One Year Limited Warranty OWNER’S Information Responsibility of the OwnerSafe Operation Practices for Walk-Behind Mowers Use only original equipment or authorized replacement parts Do notThey can help you learn. Too often the mow Safe Mowing GuideTices. Read the next few pages carefully Read this Instruction Book. ReadAccessory and the mower Make the clean up after mowing easierAdjustment,except carburetor, while the en Bruises, or even put out an eye. Often the perAuthorized Service Center for your brand Stitutions as service parts. If you need profesSional service, select a shop that is an Mower. If you plan to service the unit yourselfBefore using the grass catcher again Position when mowing and bagging. WhenUfacturer’s recommended replacement part When the front of the mower has come upSteps to Follow Before Mowing While MowingAfter Mowing Assembly Parts BAG ContentsWasher 17x37 Nut HousingRectly Chute DeflectorHOW to Assemble the Controls to the Handle Models WithEngine Stop Cable Recoil-Start Grip Locknut Engine StopCable Rope GuideFinal Assembly HOW to Assemble the Wheels with Axle BoltsHOW to Prepare the Engine Hub Cap Flange Nut 15x68 Washer 845 Axle Bolt Wheel 9x10Operation HOW to Stop the EngineHOW to Start Engine Engine Stop LeverMaintenance Blade Service HOW to Remove the BladeHOW to Sharpen the Blade HOW to Prepare the Mower for Storage Check the Level of CUTTrouble Shooting Chart Engine will not startRepair Parts Mower Housing Description Loose Parts Hardware BagHandle Briggs & Stratton Models KEY DescriptionHandle Tecumseh Models Inch, Gray 672074 Wheels and TiresInch Ball Bearing, Gray 14-in, Ball Bearing, Gray 672062040406L HOW to Order Repair Parts MURRAY, INC. Lawn Mower Central Parts Distributors

20-inch specifications

The Murray 20-inch lawn mower is a reliable choice for homeowners seeking a powerful and efficient mowing solution for medium to large lawns. Known for its durability and ease of use, this mower incorporates various features and technologies designed to enhance performance and user experience.

One of the standout aspects of the Murray 20-inch mower is its 20-inch cutting deck. This size strikes a perfect balance between maneuverability and coverage, allowing users to navigate tight spaces while still efficiently cutting larger areas of grass. The cutting deck is made from high-quality materials, ensuring it withstands the rigors of regular use while maintaining a sharp edge throughout the mowing season.

Equipped with a robust engine, the Murray 20-inch mower delivers reliable power and performance. The engine is designed for easy starting, often featuring a recoil start system, which contributes to a hassle-free mowing experience. Moreover, it provides ample torque to handle various grass lengths and densities, making it suitable for different lawn conditions.

User comfort and convenience are also prioritized in the design of the Murray mower. It features an adjustable handle, allowing users of varying heights to find a comfortable grip. The foldable handle design enhances storage efficiency, making it easy to stow the mower away after use. Additionally, the mower's lightweight structure facilitates easy maneuverability across the lawn, reducing user fatigue.

The Murray 20-inch mower comes with multiple cutting height adjustment options, allowing users to customize their lawn care according to preferences or seasonal needs. This feature ensures an even cut and promotes healthy grass growth.

Enhanced safety features, such as blade brakes and protective guards, are implemented to safeguard users during operation. These features minimize the risk of accidents and protect the mower from damage when encountering obstacles.

In terms of maintenance, the Murray 20-inch mower is designed for easy access to key components. This simplicity encourages regular upkeep, ensuring optimal performance over the mower's lifespan. The mower's fuel-efficient engine also contributes to lower operating costs, making it an economical choice.

In summary, the Murray 20-inch lawn mower blends power, efficiency, and user-friendly design. Its key features include a durable cutting deck, reliable engine, adjustable handle, customizable cutting height, and enhanced safety measures, making it a valuable addition to any homeowner's lawn care toolkit. Whether tackling overgrown grass or maintaining a manicured yard, the Murray 20-inch mower delivers exceptional results.
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