Ryobi B850 User Manual

OWNER'S OPERA TING MANUAL

3" DUSTLESS BELT SANDER / B850

DOUBLE INSULATED

SPECIFICATIONS:

Belt Size 75 mm x 534 mm (3" x 21")
Input 230V, 3.9A, 850 Watt
Overall Length 314 mm (12-1/4")
Net Weight 4.2 Kg. (9.3 lbs.)
No Load Speed 360 m/min.

THANK YOU FOR BUYING A RYOBI BELT SANDER.

Your new sander has been engineered and manufactured to Ryobi's high standard for dependability, ease of operation, and
operator safety. Properly cared for, it will give you years of rugged, trouble-free performance.

CAUTION: Carefully read through this entire owner's manual before using your new sander. Pay close attention to the
Rules for Safe Operation, Warnings, and Cautions. If you use your sander properly and only for what it is intended, you will
enjoy years of safe, reliable service.

Thank you again for buying Ryobi tools.

SAVE THIS MANUAL FOR FUTURE REFERENCE

RULES FOR SAFE OPERATION

DOUBLE INSULATION

Your Ryobi power tool is double insulated. This means you
are separated from the tool's electrical system by two complete
sets of electrical insulation. This extra layer of insulation is
intended to protect the user from electrical shock due to a
break in the wiring insulation. All exposed metal parts are
isolated from the internal metal motor components with
protecting insulation. Double insulated tools do not need to be
grounded.

WARNING: THE DOUBLE INSULATED SYSTEM IS INTENDED TO PROTECT THE USER FROM SHOCK
RESULTING FROM A BREAK IN THE TOOL'S INTERNAL WIRING. OBSERVE ALL NORMAL SAFETY
PRECAUTIONS RELATED TO AVOIDING ELECTRICAL SHOCK.

WARNING: DO NOT ATTEMPT TO OPERATE THIS TOOL UNTIL YOU HAVE READ THOROUGHLY AND
UNDERSTAND COMPLETELY ALL INSTRUCTIONS, SAFETY RULES, ETC. CONTAINED IN THIS MANUAL.
FAILURE TO COMPLY CAN RESULT IN ACCIDENTS INVOLVING FIRE, ELECTRIC SHOCK, OR SERIOUS
PERSONAL INJURY. SAVE OWNER'S MANUAL AND REVIEW FREQUENTLY FOR CONTINUING SAFE
OPERATION AND INSTRUCTING OTHERS WHO MAY USE THIS TOOL.

IMPORTANT

Servicing of a tool with double insulation requires extreme
care and knowledge of the system and should be performed
only by a qualified service technician. For service we suggest
you return the tool to your nearest AUTHORIZED SERVICE
CENTER or other QUALIFIED SERVICE ORGANIZATION
for repair. When servicing use only identical Ryobi replacement
parts.

READ ALL INSTRUCTIONS

1. KNOW YOUR POWER TOOL - Read owner's manual carefully. Learn its applications and
limitations as well as the specific potential hazards related to this tool.

2. GUARD AGAINST ELECTRICAL SHOCK BY PREVENTING BODY CONTACT WITH GROUNDED
SURFACES. For example: Pipes, radiators, ranges, refrigerator enclosures.

3. KEEP GUARDS IN PLACE and in working order.

4. KEEP WORK AREA CLEAN. Cluttered areas and benches invite accidents.

5. AVOID DANGEROUS ENVIRONMENT. Don't use power tool in damp or wet locations or expose
to rain. Keep work area well lit.

6. KEEP CHILDREN AND VISITORS AWAY. All visitors should wear safety glasses and be kept a
safe distance from work area. Do not let visitors contact tool or extension cord.

7. STORE IDLE TOOLS. When not in use, tools should be stored in a dry, high or locked-up place -
out of the reach of children.

8. DON'T FORCE TOOL. It will do the job better and safer at the rate for which it was designed.

9. USE RIGHT TOOL. Don't force small tool or attachment to do the job of a heavy duty tool. Don't use
tool for purpose not intended - for example - Don't use a circular saw for cutting tree limbs or logs.

10. WEAR PROPER APPAREL. No loose clothing or jewelry to get caught in moving parts. Rubber
gloves and non-skid footwear are recommended when working outdoors. Also, wear protective hair
covering to contain long hair and keep it from being drawn into air vents.

11. ALWAYS WEAR SAFETY GLASSES. Everyday eyeglasses have only impact-resistant lenses;
they are NOT safety glasses.

12. PROTECT YOUR LUNGS. Wear a face or dust mask if the sanding operation is dusty.

13. PROTECT YOUR HEARING. Wear hearing protection during extended periods of operation.

14. DON'T ABUSE CORD. Never carry tool by cord or yank it to disconnect from receptacle. Keep cord
from heat, oil and sharp edges.

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RULES FOR SAFE OPERATION (Continued)

15. SECURE WORK. Use clamps or a vise to hold work. It's safer than using your hand and it frees both
hands to operate the tool.

16. DON'T OVERREACH. Keep proper footing and balance at all times. Do not use on a ladder or
unstable support.

17. MAINTAIN TOOLS WITH CARE. Keep tools sharp at all times, and clean for best and safest
performance. Follow instructions for lubricating and changing accessories.

18. DISCONNECT TOOLS. When not in use, before servicing, or when changing attachments, blades,
bits, cutters, sandpaper, etc., all tools should be disconnected from power supply.

19. REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking to see that keys and
adjusting wrenches are removed from tool before turning it on.

20. AVOID ACCIDENTAL STARTING. Don't carry plugged-in tools with finger on switch. Be sure switch
is off when plugging in.

21. OUTDOOR USE EXTENSION CORDS. When tool is used outdoors, use only extension cords
suitable for use outdoors. Outdoor approved cords are marked with the suffix W-A, for example ­SJTW-A or SJOW-A.

22. NEVER USE THIS OR ANY POWER SANDER FOR WET SANDING OR LIQUID POLISHING.
Failure to comply can result in electrical shock causing serious injury or worse.

23. KEEP HANDS AWAY FROM SANDING AREA AND MOVING SANDING BELT.

24. NEVER USE IN AN EXPLOSIVE ATMOSPHERE. Normal sparking of the motor could ignite fumes.

25. INSPECT TOOL CORDS PERIODICALLY and if damaged, have repaired by an authorized service
center. Stay constantly aware of cord location.

26. INSPECT EXTENSION CORDS PERIODICALLY and replace if damaged.

27. KEEP HANDLES DRY, CLEAN, AND FREE FROM OIL AND GREASE. Always use a clean cloth
when cleaning. Never use brake fluids, gasoline, petroleum-based products or solvents to clean your
tool.

28. STAY ALERT. Watch what you are doing and use common sense. Do not operate tool when you
are tired. Do not rush.

29. CHECK DAMAGED PARTS. Before further use of the tool, a guard or other part that is damaged
should be carefully checked to determine that it will operate properly and perform its intended
function. Check for alignment of moving parts, binding of moving parts, breakage of parts, mounting,
and any other conditions that may affect its operation. A guard or other part that is damaged should
be properly repaired or replaced by an authorized service center.

30. DO NOT USE TOOL IF SWITCH DOES NOT TURN IT ON AND OFF. Have defective switches
replaced by an authorized service center.

31. Inspect for and remove all nails from lumber before sanding.

32. DRUGS, ALCOHOL, MEDICATION. Do not operate tool while under the influence of drugs, alcohol,
or any medication.

33. DO NOT USE THIS SANDER FOR OVERHEAD SANDER. Overhead sanding could result in
dropping sander or loss of control. These situations could result in an accident resulting in possible
serious injury.

34. When servicing use only identical Ryobi replacement parts.

35. SAVE THESE INSTRUCTIONS. Refer to them frequently and use them to instruct others who may
use this tool. If you loan someone this tool, loan them these instructions also.

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OPERATION

KNOW YOUR BELT SANDER

Before attempting to use your sander, familiarize yourself with all operating features and safety requirements.

WARNING: IF ANY PARTS ARE MISSING DO NOT OPERATE YOUR SANDER UNTIL THE MISSING PARTS ARE
REPLACED. FAILURE TO DO SO COULD RESULT IN POSSIBLE SERIOUS PERSONAL INJURY.

ELECTRICAL CONNECTION

Your sander has a precision built electric motor. It should be connected to a power supply that is 230 volts, 50 Hz, AC only
(normal household current). Do not operate this tool on direct current (DC). A substantial voltage drop will cause a loss of

power and the motor will overheat. If your tool does not operate when plugged into an outlet, double-check the power supply.

DUST BAG

See Figure 1

.

TRACKING

SCREW

SANDING BELT

FRONT IDLER PULLEY

Fig. 1

WARNING: DO NOT ALLOW FAMILIARITY WITH YOUR SANDER TO MAKE YOU CARELESS. REMEMBER
THAT A CARELESS FRACTION OF A SECOND IS SUFFICIENT TO INFLICT SEVERE INJURY.

WARNING:

The operation of any sander can result in foreign objects being thrown into your eyes, which
can result in severe eye damage. Before beginning power tool operation, always wear safety
goggles or safety glasses with side shields and a full face shield when needed. We
recommend Wide Vision Safety Mask for use over eyeglasses or standard safety glasses
with side shields.

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