Ryobi B850 Owner's Operating Manual
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Ryobi B850 Owner's Operating Manual

Ryobi B850 Owner's Operating Manual

3" dustless belt sander
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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
OWNER'S OPERATING MANUAL
3" DUSTLESS BELT SANDER / B850
DOUBLE INSULATED

SPECIFICATIONS:

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

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Summary of Contents for Ryobi B850

  • Page 1: Specifications

    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.

  • Page 2: Rules For Safe Operation

    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.
  • Page 3 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.

  • Page 4: Know Your Belt Sander

    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.

  • Page 5: Preparing For Operation

    ARE ASSEMBLING PARTS, CHANGING BELTS, OR MAKING ADJUSTMENTS. SWITCH The switch of your sander is equipped with a "lock-off" button that reduces the possibility of accidental starting. You must depress and hold the "lock-off" button, pull the switch trigger, then release the "lock-off" button. See Figure 2.
  • Page 6 WARNING: ALWAYS WEAR SAFETY GOGGLES OR SAFETY GLASSES WITH SIDE SHIELDS WHEN OPERATING YOUR SANDER. IF THE SANDING OPERATION IS DUSTY, ALSO WEAR A FACE OR DUST MASK. FAILURE TO DO SO COULD RESULT IN DUST OR LOOSE PARTICLES BEING THROWN INTO YOUR EYES, RESULTING IN POSSIBLE SERIOUS INJURY.
  • Page 7 If the sanding belt runs outward, turn the tracking screw counterclockwise. This should be done until you are sure belt will not run off sander, or come in contact with internal parts. After installing a new sanding belt, it may become necessary to change the adjustment several times until the belt becomes pliable.

  • Page 8: Maintenance

    WARNING: WHEN SERVICING USE ONLY IDENTICAL RYOBI REPLACEMENT PARTS. USE OF ANY OTHER PARTS MAY CREATE A HAZARD OR CAUSE PRODUCT DAMAGE. TIMING BELT REPLACEMENT DISCONNECT SANDER FROM POWER SUPPLY BEFORE SERVICING. WHEN REPLACING TIMING BELT USE RECOMMENDED REPLACEMENT BELT ONLY. See Parts List, Page 11.

  • Page 9: Switch Replacement

    SUPPRESSOR SCREWS HANDLE COVER SWITCH REPLACEMENT DISCONNECT THE SANDER FROM POWER SUPPLY WHILE REPLACING PARTS OR MAKING ADJUSTMENTS. 1. Remove the handle cover and screws. NOTE THE LOCATIONS OF ALL WIRING IN THE HANDLE AND HOW EACH CONNECTION IS MADE TO THE SWITCH.
  • Page 10 RYOBI DUSTLESS BELT SANDER - MODEL NUMBER B850 12 75 25 26 28 29 Page 10 36 37...

  • Page 11: Parts List

    RYOBI DUSTLESS BELT SANDER - MODEL NUMBER B850 The model number will be found on a plate attached to the motor housing. Always mention the model number in all correspondence regarding your Belt Sander or when ordering repair parts. Description Screw (#8-32 x 3/8 in.
  • Page 12 • HOW TO ORDER REPAIR PARTS WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE FOLLOWING INFORMATION: • MODEL NUMBER B850 All parts listed may be ordered from any Ryobi Authorized Service Center or other qualified service organization. 972000-483 11-97 • PART DESCRIPTION •...

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