Homelite UT13220, UT13218 Sharpening the Blade, Balancing the Blade, To check the blade balance

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MAINTENANCE

Place the new blade on the shaft against the fan assembly. Make sure it is installed with the curved ends pointing up toward the mower deck and not down toward the

ground.

Replace the blade insulator and spacer, then thread the blade nut on the shaft and finger tighten.

NOTE: Make certain all parts are replaced in the exact order in which they were removed.

Torque the blade nut down using a torque wrench (not provided) to ensure the bolt is properly tightened. The recommended torque for the blade nut is 450- 600 in. lbs.

SHARPENING THE BLADE

See Figure 14.

For best mowing performance, the mower blade must be kept sharp. A dull blade does not cut grass evenly and over-

FAN ASSEMBLY

SHAFT

BLADE

SPACER

BLADE NUT

 

loads the motor. Under normal circumstances, sharpening the blade twice during the mowing season is usually suf- ficient. However, if your lawn has sandy soil, more frequent sharpenings may be required.

Following the instructions in the Replacing the Cutting Blade section, remove the mower blade. DO NOT attempt to sharpen the blade while it is attached to the mower.

WARNING:

When removing, inspect the blade carefully. If blade is bent or damaged, replace immediately with a new blade. Failure to replace a bent or damaged blade could cause an accident resulting in possible serious injury.

Using a fine-tooth file or stone, sharpen cutting edges on both ends of the blade, removing equal amounts of material from both ends.

BALANCING THE BLADE

See Figure 15.

When sharpening, care should be taken to keep the blade balanced. An unbalanced blade will cause excessive vibra- tion when the mower is running. This vibration will eventually cause damage to the mower, especially the motor.

To check the blade balance:

BLADE INSULATOR

Fig. 13

Fig. 14

Clamp a screwdriver horizontally in a vise as shown.

NOTE: If a vise is not available, a straight nail can also be used.

Place the center hole of blade on the screwdriver (or nail) shank.

If blade is balanced, it will remain in a horizontal position. If either end of the blade drops downward, sharpen the heavy side until the blade is balanced.

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Fig. 15

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Contents Save this Manual for Future Reference OPERATOR’S ManualIntroduction Table of ContentsRead ALL Instructions General Safety RulesSpecific Safety Rules Name DESIGNATION/EXPLANATION SymbolsSymbol Signal Meaning ServiceElectrical Connection Cord Length Wire Size A.W.GElectrical Double InsulationProduct Specifications UT13218UT13220 Cord Retainer MOTOR/BLADE Control AssemblyHeight Adjustment Lever Know Your Lawn MowerInstalling the Mulching Plug AssemblyAdjusting Handle Installing Side Discharge DeflectorInstalling the Grass Catcher Setting Blade HeightTo set the blade height Mowing Tips OperationApplications STARTING/STOPPING the MowerEmptying the Grass Catcher Model UT13220 only Slope OperationLubrication MaintenanceGeneral Maintenance Replacing the Cutting BladeSharpening the Blade Balancing the BladeTo check the blade balance To lower the handle before storing Replacing WheelsStoring the Mower To replace a wheelProblem Possible Cause Solution TroubleshootingKey Description Qty Exploded VIEW/PARTS ListModel UT13220 This Warranty is not Transferable and does not Cover Warranty Limited Warranty for Corded Electric ModelsPage Homelite Consumer PRODUCTS, INC
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