Ryobi BS903 BS903_979_trillingual.pdf - Page 15

MAINTENANCE WARNING: When servicing, use only identical replacement parts. Use of any other parts may create a hazard or cause product damage. WARNING: Always wear safety goggles or safety glasses with side shields during power tool operation or when blowing dust. If operation is dusty, also wear a dust mask. GENERAL MAINTENANCE Avoid using solvents when cleaning plastic parts. Most plastics are susceptible to damage from various types of commercial solvents and may be damaged by their use. Use clean cloths to remove dirt, dust, oil, grease, etc. WARNING: Do not at any time let brake fluids, gasoline, petroleumbased products, penetrating oils, etc., come in contact with plastic parts. Chemicals can damage, weaken or destroy plastic which may result in serious personal injury.  Keep your band saw clean.  Remove sawdust from the inside frequently.  Do not allow pitch to accumulate on the saw table, blade guides, or thrust bearings. Clean them with gum and pitch remover.  Apply a thin coat of automobile type wax to the saw table's top so the wood slides easily while cutting. WARNING: To prevent accidental starting that could cause possible serious personal injury, turn off the saw, remove the switch key, and unplug the saw before working on the band saw. LUBRICATION All of the bearings in this tool are lubricated with a sufficient amount of high grade lubricant for the life of the unit under normal operating conditions. Therefore, no further lubrication is required. MOTOR/ELECTRICAL  Frequently vacuum or blow out sawdust from the motor. blade guide BEARINGS See Figure 22, page 22. Blade guide bearings may become worn during use. Replace blade guides as necessary. TIRES Cleaning tires:  Pitch and sawdust accumulates on tires and needs to be removed with a fine wire brush or a piece of wood. Do not use a sharp knife or any kind of solvent. Replacing tires:  Open front cover and remove saw blade. See section on Installing and Adjusting the Blade, page 13.  Pry the worn tire away from the wheel carefully.  Stretch the new tire around the wheel.  Replace the saw blade and close the front cover. brush See Figure 23, page 23. There is a brush located inside the saw housing next to the wheel. It helps protect the tire and wheel by brushing off saw dust. As the brush becomes worn, it will need to be adjusted or replaced.  Remove the screw then pull the brush off.  Place the new brush in the groove.  Retighten using the screw. drive belt See Figures 24 - 25, page 23. Due to wear or breakage, the drive belt may need to be replaced. The drive belt is located behind the lower wheel of the band saw.  Remove the saw blade and set it aside. See section on Installing and Adjusting the Blade, page 13.  Remove the nut and washer from the middle of the saw housing. See Figure 24, page 23.  Pull the lower wheel away from the saw housing.  Remove the worn drive belt.  Place new drive belt on the pulley. As you slide the wheel shaft back into the hole in the saw housing, place the drive belt over the motor pulley.  Replace the nut and washer on the wheel shaft and retighten.  Replace saw blade.  Check thrust bearings and blade guides. 15 - English