Ryobi B850 specifications Switch Replacement, Cord Replacement, General

MAINTENANCE

SCREWS	CORD CLAMP	SMALL DIAMETER
		NAIL OR PIN
BEND RELIEF
		SCREW

SCREWSSWITCH

SUPPRESSOR

SCREWS SCREW

HANDLE COVER

CONNECTOR	POWER CORD
	BLACK
	BROWN
YELLOW

CLEAR (GROUND) WHITE

SWITCH

LIGHT BLUE

SUPPRESSOR Fig. 12

SWITCH REPLACEMENT

DISCONNECT THESANDERFROM POWERSUPPLY 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. Connections and wiring position must be identical when installing the new switch. See Figure 12.

2.Lift the switch away from the handle. Release power cord leads from the switch by loosening the two screws in the switch body.

3.Release motor leads from switch by inserting a small diameter pin or nail into remaining switch lead receptacles. See Figure 12.

4.Make lead connections to the new switch by positioning power cord leads in place and tightening the two screws on switch body. Push motor leads as far as possible into the switch lead receptacles. Pull on leads to check lead connections with lead receptacles.

5.Position the switch in place, and arrange the wiring in the handle so that it will not be pinched or contact screws when the handle cover and screws are replaced. See Figure 12.

6.Arrange suppressor, connectors, and suppressor leads in the handle so that they will not be pinched or contact screws when the handle cover and screws are replaced. See Figure 12.

7.Replace handle cover and screws.

8.Tighten all screws securely.

CORD REPLACEMENT

DISCONNECT THE SANDER FROM POWER SUPPLY WHILE REPLACING PARTS OR MAKING ADJUSTMENTS.

1.Remove handle cover and screws. NOTE THE

LOCATIONS OF ALL WIRING IN THE HANDLE AND HOW EACH CONNECTION IS MADE TO THE CORD. Connections and wiring position must be identical when installing the new cord. See Figure 12.

2.Remove the cord clamp screws and cord clamp.

3.Lift the switch away from the handle. Release power cord leads from the switch by loosening the two screws in the switch body.

4.Remove the bend relief from the old cord and place it on the new one.

5.Make new power cord lead connections to switch by positioning leads in place and tightening the two screws on the switch body. Pull on leads to check lead connections with lead receptacles.

6.Position the switch in place, and arrange all wiring in the handle so that it will not be pinched or contact screws when the handle cover and screws are replaced. See Figure 12.

7.Arrange suppressor, connectors, and suppressor leads in the handle so that they will not be pinched or contact screws when the handle cover and screws are replaced. See Figure 12.

8.Replace cord clamp, cord clamp screws, handle cover, and handle cover screws.

9.Tighten all screws securely.

GENERAL

Avoid using solvents when cleaning plastic parts. Most plastics are susceptible to various types of commercial solvents and may be damaged by their use. Use clean cloths to remove dirt, carbon dust, etc.

When electric tools are used on fiberglass boats, sports cars, wallboard, spackling compounds, or plaster, it has been found that they are subject to accelerated wear and possible premature failure, as the fiberglass chips and grindings are highly abrasive to bearings, brushes, commutator, etc. Consequently it is not recommended that this tool be used for extended work on any fiberglass material, wallboard, spackling compounds, or plaster. During any use on these materials, it is extremely important that the tool is cleaned frequently by blowing with an air jet.

WARNING: DO NOT AT ANY TIME LET BRAKE F L U I D S , G A S O L I N E , P E T R O L E U M - B A S E D PRODUCTS, PENETRATING OILS, ETC., COME IN CONTACT WITH PLASTIC PARTS . THEY CONTAIN CHEMICALS THAT CAN DAMAGE, WEAKEN, OR DESTROY PLASTIC.

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.

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