Dremel SM20 manual Maintenance Information, Extension Cords, Cleaning, No User Serviceable

! WARNING

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Maintenance Information

Service

NO USER SERVICEABLE

PARTS INSIDE. Preventive maintenance performed by unauthorized personnel may result in misplacing of internal wires and components which could cause serious hazard. We recommend that all tool service be performed by a Dremel Service Facility.

CARBON BRUSHES

The brushes and commutator in your tool have been engineered for many hours of dependable service.To maintain peak efficiency of the motor, the may brushes be serviced by a Dremel Service Facility.

Cleaning

!WARNING To avoid accidents always disconnect the tool from

the power supply before cleaning or performing any maintenance. The tool may be cleaned most effectively with compressed dry air. Always wear safety goggles when cleaning tools with compressed air.

Ventilation openings and switch levers must be kept clean and free of foreign matter. Do not attempt to clean by inserting pointed objects through openings.

Certain cleaning agents ! CAUTION and solvents damage

plastic parts. Some of these are: gasoline, carbon tetrachloride, chlorinated cleaning solvents, ammonia and household detergents that contain ammonia.

Extension Cords

!WARNING If an extension cord is necessary, a cord with

adequate size conductors that is capable of carrying the current necessary for your tool must be used. This will prevent excessive voltage drop, loss of power or overheating. Grounded tools must use 3- wire extension cords that have 3-prong plugs and receptacles.

NOTE: The smaller the gauge number, the heavier the cord.

RECOMMENDED SIZES OF ExTENSION CORDS 120 VOLT ALTERNATING CURRENT TOOLS

Tool’s	Cord Size in A.W.G.				Wire Sizes in mm2
Ampere
	Cord Length in Feet				Cord Length in Meters
Rating
	25	50	100	150	15	30	60	120
3-6
	18	16	16	14	0.75	0.75	1.5	2.5
6-8	18	16	14	12	0.75	1.0	2.5	4.0
8-10	18	16	14	12	0.75	1.0	2.5	4.0
10-12	16	16	14	12	1.0	2.5	4.0	—
12-16	14	12	—	—	—	—	—	—

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