Bolens 645A, 643B, 643C warranty Check Transmission OIL Level, ADD Motor OIL, Check Hardware

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Assembly

WARNING

Read, understand, and follow all instructions and warnings posted on the machine and in this manual before operating.

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 components.

1.With the tiller on level ground, pull the Depth Regula- tor 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 approxi- mately halfway up the side of the main drive shaft.

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

STEP 7: ADD MOTOR OIL

The tiller is shipped without oil in the engine.

IMPORTANT: Do not start the engine without first adding motor oil. Severe engine damage will result if the engine is run without 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 Engine Owner’s Manual.

4.Move the Depth Regulator Lever all the way down until the highest notch is engaged. 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 between 15 PSI and 20 PSI (pounds per square inch). Be sure that both tires are inflated equally or the unit will pull to one side.

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Fig. 2-8: Install reverse cable bracket and reverse clutch cable.

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Fig. 2-9: Route reverse clutch cable (CC) as shown. Attach with cable tie (EE).

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Fig. 2.10: Adjust Depth Regulator Lever.

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Fig. 2.11: Remove gear oil fill plug.

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Contents 772C0845 02/24/2006Table of Contents Training PreparationOperation Heed ITS WarningMaintenance & Storage Never pick up or carry machine while the engine is runningAssembly Assembly StepsLoose Parts List IntroductionOutside of the handle- bar assembly Important The support brackets must be assembled toMove Tiller OFF Crate Wheel shaft LThread the #10-24 hex nut Z, Fig Install Forward Clutch CableThread the screw V into the cable adjuster Check Transmission OIL Level ADD Motor OILCheck Hardware Check all nuts and screws for tightnessFeatures Controls Wheel Drive PinsIntroduction Engine ControlsForward Clutch Bail To operate the Forward Clutch BailDepth Regulator Lever Reverse Clutch Control Models 643B & 645A onlyHandlebar Height Adjustment To adjust the handlebarsPre-Start Checklist Features and ControlsIntroduction BREAK-IN Operation Starting and StoppingRelease all controls on the tiller Stopping the Engine and TillerOperating the Tiller Reduces tractionFreewheel Stopping the Tiller and EngineAvoid Tilling Soggy, Wet Soil Read the following recommendations before tilling on slopesTilling Up and Down Slopes Vertical Tilling Terrace Gardening Loading and Unloading the TillerMaintenance Schedule Procedure Tiller LubricationCheck for OIL Leaks Check HardwareTransmission Gear OIL Service Bolo TinesRemoving/Installing a Tine Assembly You have good footing. Never permit tillerReplacement Belt Information OnlyDrive Belt Tension Models 643B & 645A To Check Reverse Belt TensionEngine Cleaning AIR Cleaner Service Engine OIL Service Spark Plug ServiceOFF-SEASON Storage To Check the Engine Oil LevelTrouble Shooting Warranty Page La page 2 pour ce qui concerne les pièces et/ou accessoires Parts List Pièces DétachéesAdressez-vous au «Service après-vente» Use as required to obtain between Part Description RÉF Pièce Page Part Description RÉF Pièce For parts and/or accessories refer to customer support on Page Garantie Juridictions les selonDépannage Bougie LA DE Entretien Teur -CARBURATEUR/RÉGULA DU RéglagesLles -ÉTINCE-PARE L’ÉCRAN DE Entretien Moteur à l’huile changer Pour .BMoteur À L’HUILE DE Vidange AIR À Filtre DU EntretienMoteur DU Nettoyage Intérieur blocage de l’écrou serrez et tourner deSeulement 645A et 643B Modèles Arrière Marche LA DE Courroie LA DE SionTEN LA DE Réglage ET Vérification Avant Marche LAAvant Bolo DentsDents ArbrePas ne pour niveau le fréquemment Vérifiez FondMission Trans LA DE Engrenages Pour HuileEntretien Utilisation Motoculteur DU Déchargement ET ChargementDents des Nettoyage Corporelles blessuresSauf déconseillons Risques des présenterTerre une travailler de Évitez DétrempéeTerre la pulvériser Corporelles Blessures des et matériels dégâts des Les laissez et travaillant en détendu Soyez .bMotoculteur, du contrôle de perte la Profondeur en plus dents les travaillerTravail Terre laSéparément fournie moteur du Réglage ChineFaites Ne Matériels dégâts Des ou corporelles blessures des entraînerPeut avertissement cet de respect non Le Travailler à prêt soyez vous que ce jusqu’àAvant Marche LA DE D’EMBRAYAGE Barre CetteMoteur DU Commandes Roues DES D’ENTRAÎNEMENT Goupilles’HUILE Plein Étape Septième AssemblageMoteur Installa Étape Quatrième Incorrecte tension RemarqueAvant Marche LA DE ’EMBRAYAGE Câble DU TionCaisse LA DE Culteur Moto LE Sortir Étape TroisièmeDétachées pièces des Liste RemarqueSYMBOLE! CE Accompagne QUI L’AVERTISSEMENT Responsabilité VotreRemisage et Entretien RespectezSYMBOLE! CE Accompagne QUI L’AVERTISSEMENT Respectez FonctionnementPréparation Général en UtilisationSaison hors Remisage et Entretien Commandes et CaractéristiquesDépannage ’UTILISATION Notice 02/24/2006 772C0845

643B, 643C, 645A specifications

The Bolens 645A, 643C, and 643B are celebrated models in the lineup of Bolens garden tractors, known for their durability and versatility. These machines, produced during the 1970s and 1980s, are vintage favorites for homeowners and garden enthusiasts seeking rugged equipment for their gardening needs.

The Bolens 645A is especially noted for its robust build and powerful performance. Equipped with a 7-horsepower engine, the 645A can tackle a variety of tasks, from mowing to snow removal, making it a multipurpose tool in any garden or landscape. One of the main features of the 645A is its hydrostatic transmission, which allows for seamless speed adjustments, providing exceptional maneuverability in tight spaces and varied terrain.

Similarly, the Bolens 643C and 643B models boast impressive features and capabilities. The 643C is renowned for its compact yet powerful 6-horsepower engine. It includes a gear-driven transmission, which offers reliable power transfer and increased efficiency while operating under demanding conditions. The steady performance of the 643C makes it ideal for smaller properties, where precision and control are paramount.

The 643B, while slightly less powerful than its sibling, still holds its own with a solid 5-horsepower engine. It is particularly favored for its ease of use and relatively low maintenance requirements, making it a perfect choice for casual gardeners or those new to the world of garden tractors. Its straightforward controls and simple mechanisms ensure that users can quickly learn to operate it proficiently.

All three models are engineered with a focus on user comfort. The seating is designed ergonomically, allowing users to operate for extended periods without discomfort. Additionally, the accessibility for maintenance tasks is a notable characteristic, ensuring that both professional and amateur gardeners can perform regular upkeep with ease.

In terms of technology, these models utilize straightforward mechanical designs with minimal electronic components, which reduces the likelihood of breakdowns and simplifies repairs. The rugged construction of the chassis and attachments demonstrates Bolens' commitment to longevity and resilience, making these tractors a solid investment for any gardening enthusiast.

In summary, the Bolens 645A, 643C, and 643B models stand out in the garden tractor market due to their powerful engines, user-friendly designs, and robust construction. They represent a blend of efficiency and reliability, catering to a wide range of gardening tasks and maintaining a loyal following among vintage equipment enthusiasts.
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