Bolens 645A, 643B Tiller Lubrication, Check for OIL Leaks, Check Hardware, Check Tire Pressure

Page 17

MAINTENANCE SCHEDULE

PROCEDURE

NOTES

 

 

Check motor oil level

2, 3

 

 

Clean engine

2, 7

 

 

Check drive belt tension

1, 4

 

 

Check nuts and bolts

1, 4

 

 

Change motor oil

4, 6, 9

 

 

Lubricate tiller

4

 

 

Service engine air cleaner system

7

 

 

Check gear oil level in transmission

1, 5

 

 

Check tines for wear

5

 

 

Check air pressure in tires

5

(if unit has pneumatic tires)

 

 

 

Service spark plug

7

 

 

NOTES

1 - Check after first 2 hours of break-in operation. 2 - Before each use.

3 - Every 5 operating hours.

4 - Every 10 operating hours.

5 - Every 30 operating hours.

6 - Change more frequently in dusty conditions.

7 - See Engine Owner’s Manual for service recommendations.

8 - Whichever time interval occurs first.

9 - Change after first 2 hours of break-in

TILLER LUBRICATION

After every 10 operating hours, oil or grease the lubrica- tion points shown in Figure 5-1 and described below.

Use clean lubricating oil (#30 weight motor oil is suitable) and clean general purpose grease (grease containing a metal lubricant is preferred, if available).

Remove the wheels, clean the wheel shaft (A, Fig.

5-1) and apply a thin coating of grease to the wheel shaft.

Grease the back, front and sides of the depth regula- tor lever (B, Fig. 5-1).

Remove the tines and clean the tine shaft (C, Fig.

5-1). Use a file or sandpaper to gently remove any rust, burrs or rough spots (especially around holes in shaft). Apply grease to ends of shaft before installing tines.

Oil the threads on the handlebar height adjustment screws and the handlebar attaching screws (D, Fig. 5-1).

Figure 5-1

CHECK FOR OIL LEAKS

Before each use, check the tiller for signs of an oil leak

usually a dirty, oily accumulation either on the unit or on the floor.

A little seepage around a cover or an oil seal is usually not a cause for alarm. However, if the oil drips overnight, then immediate attention is needed. Ignoring an oil leak can result in severe transmission damage!

If a cover is leaking, check for loose screws. If the screws are tight, a new gasket or oil seal may be required.

If the leak is from around a shaft and oil seal, the oil seal probably needs to be replaced. See your authorized dealer or contact the factory for service or advice.

IMPORTANT: Never operate the tiller if the transmission is low on oil. Check the oil level after every 30 hours of operation and whenever there is any oil leakage.

CHECK HARDWARE

Check for loose or missing hardware after every 10 operating hours and tighten or replace (as needed) before reusing tiller

Be sure to check the screws underneath the tiller hood that secure the transmission cover and the Depth Regula- tor Lever to the transmission.

CHECK TIRE PRESSURE

(Models with pneumatic tires)

Check the air pressure in both tires. The air pressure should be between 15 PSI and 20 PSI (pounds per square inch).

Keep both tires equally inflated to help prevent machine from pulling to one side.

5

Maintenance

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.

See your engine manual packaged with your unit for detailed instructions pertaining to starting the engine.

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Contents 02/24/2006 772C0845Table of Contents Preparation TrainingOperation Heed ITS WarningNever pick up or carry machine while the engine is running Maintenance & StorageAssembly Steps AssemblyLoose Parts List IntroductionImportant The support brackets must be assembled to Outside of the handle- bar assemblyMove Tiller OFF Crate Wheel shaft LThread the #10-24 hex nut Z, Fig Install Forward Clutch CableThread the screw V into the cable adjuster ADD Motor OIL Check Transmission OIL LevelCheck Hardware Check all nuts and screws for tightnessWheel Drive Pins Features ControlsIntroduction Engine ControlsTo operate the Forward Clutch Bail Forward Clutch BailDepth Regulator Lever Reverse Clutch Control Models 643B & 645A onlyTo adjust the handlebars Handlebar Height AdjustmentFeatures and Controls Pre-Start ChecklistIntroduction BREAK-IN Operation Starting and StoppingStopping the Engine and Tiller Release all controls on the tillerOperating the Tiller Reduces tractionStopping the Tiller and Engine FreewheelAvoid Tilling Soggy, Wet Soil Read the following recommendations before tilling on slopesTilling Up and Down Slopes Vertical Tilling Loading and Unloading the Tiller Terrace GardeningTiller Lubrication Maintenance Schedule ProcedureCheck for OIL Leaks Check HardwareBolo Tines Transmission Gear OIL ServiceYou have good footing. Never permit tiller Removing/Installing a Tine AssemblyOnly Replacement Belt InformationDrive Belt Tension Models 643B & 645A To Check Reverse Belt TensionSpark Plug Service Engine Cleaning AIR Cleaner Service Engine OIL 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 Juridictions les selon GarantieDépannage Teur -CARBURATEUR/RÉGULA DU Réglages Bougie LA DE EntretienLles -ÉTINCE-PARE L’ÉCRAN DE Entretien Moteur à l’huile changer Pour .BAIR À Filtre DU Entretien Moteur À L’HUILE DE VidangeMoteur DU Nettoyage Intérieur blocage de l’écrou serrez et tourner deMarche LA DE Courroie LA DE Sion Seulement 645A et 643B Modèles ArrièreTEN LA DE Réglage ET Vérification Avant Marche LABolo Dents AvantDents ArbreFond Pas ne pour niveau le fréquemment VérifiezMission Trans LA DE Engrenages Pour HuileEntretien Motoculteur DU Déchargement ET Chargement UtilisationCorporelles blessures Dents des NettoyageSauf déconseillons Risques des présenterTerre une travailler de Évitez DétrempéeTerre la pulvériser Les laissez et travaillant en détendu Soyez .b Corporelles Blessures des et matériels dégâts desMotoculteur, du contrôle de perte la Profondeur en plus dents les travaillerTravail Terre laSéparément fournie moteur du Réglage ChineFaites Ne Des ou corporelles blessures des entraîner Matériels dégâtsPeut avertissement cet de respect non Le Travailler à prêt soyez vous que ce jusqu’àCette Avant Marche LA DE D’EMBRAYAGE BarreRoues DES D’ENTRAÎNEMENT Goupilles Moteur DU Commandes’HUILE Plein Étape Septième AssemblageMoteur Incorrecte tension Remarque Installa Étape QuatrièmeAvant Marche LA DE ’EMBRAYAGE Câble DU TionMoto LE Sortir Étape Troisième Caisse LA DE CulteurRemarque Détachées pièces des ListeResponsabilité Votre SYMBOLE! CE Accompagne QUI L’AVERTISSEMENTRemisage et Entretien RespectezFonctionnement SYMBOLE! CE Accompagne QUI L’AVERTISSEMENT RespectezPréparation Général en UtilisationSaison hors Remisage et Entretien Commandes et CaractéristiquesDépannage 02/24/2006 772C0845 ’UTILISATION Notice

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.