Troy-Bilt 630B-Tuffy, 634F-Bronco, 634B-Super Bronco manual OFF Season Storage, Spark Plug Service

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Section 5: Maintenance

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WARNING

Before inspecting, cleaning or servicing the machine, shut off engine, wait for all moving parts to come to a complete stop, disconnect spark plug wire and move wire away from spark plug.

Failure to follow these instructions can result in serious personal injury or property damage.

3.Clean around the oil dipstick or oil fill tube (whichever applies) to prevent dirt from falling into the crankcase.

4.On engines with an oil fill tube, remove the fill cap and add oil (if required) until it reaches the top of the fill tube. Reinstall the fill cap.

5.On engines with a dipstick, remove it and wipe it clean. Reinsert the dipstick, tighten it securely, and remove it. Add oil as needed to bring the level up to the FULL mark. Wipe dipstick clean each time oil level is checked. Do not overfill. Tighten dipstick securely.

B. To Change the Engine Oil:

Change the engine oil as instructed in the Engine Owner’s Manual.

THROTTLE LEVER ADJUSTMENT

If the engine does not respond to various throttle lever settings, refer to the Engine Owner’s Manual for service information or contact your local authorized engine dealer.

WARNING

Operators shall not tamper with the engine governor settings on the machine; the governor controls the max- imum safe operating speed to protect the engine and all moving parts from damage caused by overspeed. Autho- rized service shall be sought if a problem exists.

OFF SEASON STORAGE

When the tiller won’t be used for an extended period, prepare it for storage as follows:

1.

Clean the tiller and engine.

2.

Do routine tiller lubrication and check

for loose parts and hardware.

3.

Protect the engine and perform recom-

mended engine maintenance by following

the storage instructions found in the

Engine Owner’s Manual. Be sure to pro-

tect the fuel lines, carburetor and fuel tank

from gum deposits by removing fuel or by

treating fuel with a fuel stabilizer (follow

engine manufacturer’s recommendations).

4. Store unit in a clean, dry area.

5.

Never store the tiller with fuel in the

SPARK PLUG SERVICE

Inspect and clean or replace the spark plug after every 100 operating hours or annually. Refer to the Engine Owner’s Manual for spark plug service instructions.

In some areas, local law requires using resistor spark plugs to suppress ignition signals. If the engine was originally equipped with a resistor spark plug, use the same type for replacement.

SPARK ARRESTER SCREEN SERVICE

If the engine muffler is equipped with a spark arrester screen, remove and clean it according to the service intervals and instructions in the Engine Owner’s Manual.

CARBURETOR/GOVERNOR CONTROL ADJUSTMENTS

The carburetor was adjusted at the factory for best operating speed. Refer to the Engine Owner’s Manual for any adjust- ment information or see your authorized engine dealer.

The governor controls the maximum safe operating speed and protects the engine and all moving parts from damage caused by overspeeding. Do not tamper with the engine governor settings.

fuel tank in an enclosed area where gas

fumes could reach an open flame or spark,

or where ignition sources are present

(space heaters, hot water heaters, fur-

naces, etc.).

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Contents Operator’s Manual Table of Contents Know how to stop the unit and disengage the controls quickly Safety Alert SymbolExercise caution to avoid slipping or falling SafetyKeep children and pets away Use slower engine speedsTo Avoid Serious Injury DecalsAssembly Steps IntroductionInspect Unit Clutch Cable Install Reverse Clutch Cable Models 634F and 634B only AssemblyCheck AIR Pressure Check Level of Transmission Gear OILCheck all nuts and screws for tightness Introduction Wheel Drive PinsEngine Controls Reverse Clutch Control Models 634F/634BHandlebar Height Adjustment Features and ControlsForward Clutch Bail Depth Regulator LeverIntroduction BREAK-IN Operation Pre-Start ChecklistStarting and Stopping the Engine Starting the EngineOperation Operating the TillerTines will cause injury Stopping the Engine and Tiller Stopping the Tiller and EngineClumps of soil that can interfere with Your freshly tilled or cultivated soilBy successive passes at one Quarter width see Fig Read the following recommendations before tilling on slopes Tilling Up and Down Slopes Vertical TillingTerrace Gardening Loading and Unloading the Tiller Clearing the TinesTransmission Gear OIL Service Maintenance ScheduleTiller Lubrication Check for OIL LeaksRemoving/Installing a Single Tine MaintenanceRemoving/Installing a Tine Assembly Bolo TinesChecking and Adjusting Replacement Belt InformationTo Check Forward Belt Tension Engine Cleaning AIR Cleaner Service Engine OIL Service Forward Clutch Bail AdjustmentChecking and Adjusting Reverse Drive Belt Tension To Check Reverse Belt TensionSpark Arrester Screen Service Spark Plug ServiceCARBURETOR/GOVERNOR Control Adjustments OFF Season StorageProblem Possible Cause Correction TroubleshootingOEM-290-256 fits Tuffy, OEM-290-254 fit Bronco OEM-290-265 fits Tuffy, Bronco & Super BroncoParts List Drawing noPart Description Parts List Parts List Drawing no DRAWING/PARTS List noPart Description QTY For Model 630B GW-9727 24 3 1917326 Hold Tine With Blunt End Toward You Left Side Right Side50049-02 TROY-BILT Tiller Lifetime Limited Warranty