Maintenance - Ryobi BS903 Manual Del Operador

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, petroleum-
based 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.

MAINTENANCE

BLADE GUIDE BEARINGS
see Figure 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,
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,
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,
 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
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page 22
page 23 .
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page 23
page 23 .