Troy-Bilt 643C Tuffy/Bronco manual Check all nuts and screws for tightness, Safety, Operation

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STEP 6: CHECK TRANSMISSION OIL LEVEL

The transmission was filled with gear oil at the factory. However, you should check the gear oil level at this time to make certain it is correct.

IMPORTANT: Do not operate the tiller if the gear oil level is low. Doing so will result in severe damage to the transmission com- ponents.

1.With the tiller on level ground, pull the Depth Regulator Lever (FF, Fig. 2-10) back and then all the way up until the lowest notch in the lever is engaged.

2.Remove the oil fill plug (GG, Fig. 2-11) from the transmission housing cover and locate the main drive shaft situated inside the housing.

3.The gear oil level is correct if the gear oil is approximately halfway up the side of the main drive shaft.

4.If the oil level is low, add gear oil by re- ferring to A. To Check the Transmission Gear Oil Level in Section 5.

FF

STEP 7: ADD MOTOR OIL

The tiller is shipped without oil in the en- gine.

IMPORTANT: Do not start the engine with- out first adding motor oil. Severe engine damage will result if the engine is run with- out oil.

1.Refer to the separate Engine Owner’s Manual for engine oil specifications and capacities.

2.With the tiller on level ground, move the Depth Regulator Lever (FF, Fig. 2-10) up or down until the engine is level.

3.Add motor oil as described in the En- gine Owner’s Manual.

4.Move the Depth Regulator Lever all the way down until the highest notch is en- gaged. This places the tines in the “travel” position, which allows the tiller to be moved without the tines touching the ground.

STEP 8: CHECK HARDWARE

Check all nuts and screws for tightness.

STEP 9: CHECK AIR PRESSURE IN TIRES (units with pneumatic tires)

Check the air pressure with a tire gauge. Deflate or inflate the tires equally to be- tween 15 PSI and 20 PSI (pounds per square inch). Be sure that both tires are in- flated equally or the unit will pull to one side.

Fig. 2-10: Adjust Depth Regulator Lever.

GG

Fig. 2-11: Remove gear oil fill plug.

IMPORTANT: This completes the assembly steps. Be- fore operating your tiller, make sure you read the follow- ing sections in this Manual, as well as the

separate Engine Owner’s Manual:

•Section 1: Safety

•Section 3: Features and Controls

•Section 4: Operation

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Contents Operator’s Manual Table of Contents Finding Model NumberCustomer Support Do not put hands or feet near or under rotating parts Safety Alert SymbolKeep children and pets away Refer to the Maintenance sectionsStarting the engine or engaging Use slower engine speedsTo Avoid Serious Injury Operating SymbolsAssembly Steps AssemblyIntroduction Inspect UnitUse the handlebar to roll the tiller to a flat area Install Forward Clutch CableWith the Forward Clutch Bail Y, Fig While preventing the cable adjuster from turningSafety Check all nuts and screws for tightnessOperation Ature package to identify the controls on your engine FreewheelFrom wheel drive shaft B To adjust the handlebars Travel Position Shallow SettingsTo operate the Forward Clutch Bail Stop all tiller motion by releasing the Forward Clutch BailIntroduction BREAK-IN Operation Following steps describe how to start and stop the engineStarting and Stopping Change engine oilOperating the Tiller For forward motion of the wheels and power to the tinesStopping the Engine and Tiller To move the Model 643C in reverse for short distancesTilling Tips & Techniques Tilling On Slopes Tilling Tips & Techniques CON’TClearing the Tines Read the following recommendations before tilling on slopesTerrace Gardening Loading and Unloading the TillerTiller Lubrication Transmission Gear OIL ServiceCheck Hardware Check Tire PressureRemoving⁄Installing a Tine Assembly Removing⁄Installing a Single TineBolo Tines Tine InspectionChecking and Adjusting Replacement Belt InformationTo Check Forward Belt Tension Engine Cleaning AIR Cleaner Service Engine OIL Service Forward Clutch Bail AdjustmentModels 643B & 645A only To Check Reverse Belt TensionSpark Arrester Screen Service Spark Plug ServiceOFF-SEASON Storage To Change the Engine OilProblem Possible Cause Correction TroubleshootingPage Models 643C, 643B & 645A Description Models 643C, 643B & 645AGW-1224-3 Front Model 643C Models 643C, 643B & 645A Page Page TROY-BILT Tiller Lifetime Limited Warranty
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