Troy-Bilt 643C Tuffy/Bronco, 645A Super Bronco manual Install Forward Clutch Cable

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The support brackets must be assembled to the outside of the handlebar assembly.

D

G

F

E

F

H

B

A

C

J

K

L

Fig. 2-3: Wheel in FREEWHEEL position (wheel drive pin through wheel shaft only).

STEP 4: INSTALL FORWARD CLUTCH CABLE

1.Carefully unwrap the forward clutch ca- ble (cable without an attached knob) from its shipping position and slide the thin ca- ble wire (M, Fig. 2-4) into the slot in the ca- ble bracket. Push the cable connector (N, Fig. 2-4) up through the hole in the bracket until the groove in the connector snaps into place.

2.Thread the #10-24 hex nut (Z, Fig. 2-5) halfway onto the screw (V) which runs through the spring (W, Fig. 2-5).

3.Thread the screw (V) into the cable ad- juster (X).

Fig. 2.2: Attach handlebar.

through the wheel shaft (L) only (not through the wheel hub). The wheel should now spin freely (freewheel) on the wheel shaft. Repeat with the other wheel.

4.Use the handlebar to roll the tiller to a flat area.

IMPORTANT: Before starting the engine, the wheels must be placed in the WHEEL DRIVE position (pins through wheel hubs and wheel shaft). This procedure is described in Wheel Drive Pins on page 10.

M

M

N

Fig. 2-4: Installing forward clutch cable bracket and cable.

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Contents Operator’s Manual Finding Model Number Table of ContentsCustomer Support Do not put hands or feet near or under rotating parts Safety Alert SymbolUse slower engine speeds Refer to the Maintenance sectionsKeep children and pets away Starting the engine or engagingTo Avoid Serious Injury Operating SymbolsInspect Unit AssemblyAssembly Steps IntroductionUse 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 turningCheck all nuts and screws for tightness SafetyOperation Freewheel Ature package to identify the controls on your engineFrom wheel drive shaft B Stop all tiller motion by releasing the Forward Clutch Bail Travel Position Shallow SettingsTo adjust the handlebars To operate the Forward Clutch BailChange engine oil Following steps describe how to start and stop the engineIntroduction BREAK-IN Operation Starting and StoppingTo move the Model 643C in reverse for short distances For forward motion of the wheels and power to the tinesOperating the Tiller Stopping the Engine and TillerTilling Tips & Techniques Read the following recommendations before tilling on slopes Tilling Tips & Techniques CON’TTilling On Slopes Clearing the TinesTerrace Gardening Loading and Unloading the TillerCheck Tire Pressure Transmission Gear OIL ServiceTiller Lubrication Check HardwareTine Inspection Removing⁄Installing a Single TineRemoving⁄Installing a Tine Assembly Bolo TinesReplacement Belt Information Checking and AdjustingTo Check Forward Belt Tension To Check Reverse Belt Tension Forward Clutch Bail AdjustmentEngine Cleaning AIR Cleaner Service Engine OIL Service Models 643B & 645A onlyTo Change the Engine Oil Spark Plug ServiceSpark Arrester Screen Service OFF-SEASON StorageProblem 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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