Black & Decker BL1500, LH4500 Servicing of Double Insulated Appliances, Functional Description

Servicing of Double Insulated Appliances

Your Blower/Vac is double-insulated to give you added safety. In a double insulated appliance, two systems of insulation are provided instead of grounding. No grounding means is provided on a double insulated appliance, nor should a means for grounding be added to the appliance. Servicing a double insulated appliance requires extreme care and knowledge of the system and should be done only by qualified service personnel. Replacement parts for a double insulated appliance must be identical to the parts they replace. A double insulated appliance is marked with the words double insulated or "double insulation". The symbol (square within a square) may also be marked on the appliance.

Safety Rules and Instructions: Extension Cords

Double insulated tools have 2-wire cords and can be used with 2-wire or 3-wire extension cords. Only round jacketed extension cords should be used, and we recommend that they be listed by Underwriters Laboratories (U.L.) (C.S.A. in Canada). If the extension will be used outside, the cord must be suitable for outdoor use. Any cord marked as outdoor can also be used for indoor work.

An extension cord must have adequate wire size (AWG or American Wire Gauge) for safety, and to prevent loss of power and overheating. The smaller the gauge number of the wire, the greater the capacity of the cable, that is 16 gauge has more capacity than 18 gauge. When using more than one extension to make up the total length, be sure each individual extension contains at least the minimum wire size. Before using an extension cord, inspect it for loose or exposed wires, damaged insulation, and defective fittings. Make any needed repairs or replace the cord if necessary.

To determine the minimum wire size required, refer to the chart:

			Minimum Gage for Cord Sets
Volts			Total Length of Cord in Feet
120V			0-25	26-50	51-100	101-150
			(0-7,6m)	(7,6-15,2m) (15,2-30,4m) (30,4-45,7m)
240V			0-50	51-100	101-200	201-300
			(0-15,2m) (15,2-30,4m) (30,4-60,9m) (60,9-91,4m)
Ampere Rating
More		Not more		American Wire Gage
Than		Than
0	-	6	18	16	16	14
6	-	10	18	16	14	12
10	-	12	16	16	14	12
12	-	16	14	12	Not Recommended

Safety Rules and Instructions: Polarized Plug

To reduce the risk of electric shock, this equipment has a polarized plug (one blade is wider than the other). This equipment must be used with a suitable polarized 2 wire or 3 wire extension cord. Polarized connections will fit together only one way. Make sure that the receptacle end of the extension cord has large and small blade slot widths. If the plug does not fit fully into the extension cord, reverse the plug. If it still does not fit, obtain a suitable extension cord. If the extension cord does not fit fully into the outlet, contact a qualified electrician to install the proper outlet. Do not change the tool plug or extension cord in any way.

FUNCTIONAL DESCRIPTION

a. Power head

b. Upper blow tube

c. Lower blow tube

d. Leaf Blaster Attachment

e.Concentrator

f.Upper vac tube

g.Lower vac tube

h.Shoulder bag

	b
		f
	c	a
d	e	g
		h
		3