Yard Machines 420, 410 manual Adjustments, Lubrication, Maintenance

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SECTION 9: ADJUSTMENTS

HANDLE ADJUSTMENT

The handle height may be adjusted. On Model 420, the handle may also be adjusted to be in line with the tiller, or swung to the left or right. Refer to the Control section for details of handle adjustment.

BELT TENSION ADJUSTMENT

Periodic adjustment of the belt tension may be required due to normal stretch and wear on the belt. Adjustment is needed if the tines or wheels seem to hesitate while turning, but the engine maintains the same speed.

To adjust the tension on the belt, refer to final clutch adjustment in Assembly Instructions.

CARBURETOR ADJUSTMENT

WARNING: If any adjustments are made to the engine while the engine is running, (e.g. carburetor), disengage all clutches and tines. Keep clear of all moving parts. Be careful of heated surfaces and muffler.

Never make unnecessary adjustments. The factory settings are correct for most applications. If adjustments are needed, refer to the separate engine manual packed with your tiller.

SECTION 10: LUBRICATION

Transmission—The transmission is pre-lubricated and sealed at the factory. It requires no checking unless the transmission is disassembled. To fill with grease, lay the right half of the transmission on its side. Add 22 ounces of Benalene 920 grease. Assemble the left half to it. This grease can be obtained at your nearest authorized dealer. Order part number 737-0300.

Clutch Handle—Lubricate the pivot point on the clutch handle and the cable at least once a season with light oil. The control must operate freely in both directions.

Pivot Points—Lubricate all pivot points and linkages at least once a season with light oil.

Tine Shafts—Remove tine assemblies and lubricate the tine shafts at least once a season.

Wheel Shafts—Remove wheel assemblies and lubricate the axle shafts at least once a season.

SECTION 11: MAINTENANCE

WARNING: Disconnect the spark plug wire and ground it against the engine before performing any repairs or maintenance.

ENGINE

Refer to the separate engine manual for engine maintenance instructions.

Maintain engine oil as instructed in the separate engine manual packed with your unit. Read and follow instructions carefully.

Service air cleaner every ten hours under normal conditions. Clean every hour under extremely dusty conditions. Poor engine performance and flooding usually indicates that the air cleaner should be serviced. To service the air cleaner, refer to the separate engine manual packed with your unit.

IMPORTANT: Never run your engine without air cleaner completely assembled.

The spark plug should be cleaned and the gap reset every 25 hours of engine operation. Spark plug replacement is recommended at the start of each tiller season; check engine manual for correct plug type and gap specification.

Clean the engine regularly with a cloth or brush. Keep the cooling system (blower housing area) clean to permit proper air circulation which is essential to engine performance and life. Be certain to remove all dirt and combustible debris from muffler area.

CLEANING THE TINE AREA

Clean the underside of the tine shield after each use. The dirt washes off the tines easier if washed off immediately instead of after it dries.

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Contents OPERATOR’S Manual General Operation Important Safe Operation PracticesChildren ServiceTo Remove Unit from Carton Finding Your Model NumberCalling Customer Support UnpackingLoose Parts in Carton Assembly InstructionsTools Required for Assembly Attaching the Depth Stake AssemblyAttaching the Gear Shift ROD Attaching the Handle Adjustment RODTire Pressure Final Clutch AdjustmentHandle Adjustment Lock Cable Clip Flange Lock Nut Attaching the Clutch CableDepth Stake ControlsGear Selection Handle Throttle ControlTo Stop Engine OperationBefore Starting To Start EngineUse This HOW to USE Your TillerLubrication AdjustmentsMaintenance Engine Belt ReplacementOFF-SEASON Storage TiresTrouble Possible Causes Corrective Action Trouble Shooting GuideModels Part Description Models 410, 415 Description Model Description Other Warranties MANUFACTURER’S Limited Warranty for
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420, 410 specifications

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