Craftsman 137.21236 Manual De Usuario

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BREAKDOWN, grounding provides a path of 

least resistance for electric currents and reduces 

the risk of electric shock. This tool is equipped 

with an electrical cord that has an equipment-

grounding conductor and a grounding plug. The 

plug must be plugged into a matching receptacle 

that is properly installed and grounded in 

accordance with all local codes and ordinances.
DO NOT MODIFY THE PLUG PROVIDED. 

If it will not fit the receptacle, have the proper 

receptacle installed by a qualified electrician.
IMPROPER CONNECTION of the equipment 

grounding conductor can result in risk of electric 

shock. The conductor with the green insulation 

(with or without yellow stripes) is the equipment 

grounding conductor. If repair or replacement of 

the electrical cord or plug is necessary, do not 

connect the equipment grounding conductor to a 

live terminal.
CHECK with a qualified electrician or service 

person if you do not completely understand the 

grounding instructions, or if you are not certain 

the tool is properly grounded.
USE only three-wire extension cords that have 

three-pronged grounding plugs with three-pole 

receptacles that accept the tool’s plug. Repair or 

replace damaged or worn cords immediately.

USE THE PROPER EXTENSION CORD. Make 

sure your extension cord is in good condition. 

Use an extension cord heavy enough to carry 

the current your product will draw. An undersized 

cord will cause a drop in line voltage resulting 

in loss of power, overheating and burning out 

of the motor. The table on the right shows the 

correct size to use depending on cord length 

and nameplate ampere rating. If in doubt, use 

the next heavier gauge. The smaller the gauge 

number, the heavier the cord.

Make sure your extension cord is properly 

wired and in good condition. Always replace a 

damaged extension cord or have it repaired by a 

qualified technician before using it. Protect your 

extension cords from sharp objects, excessive 

heat and damp or wet areas. 

Use a sep

arate electrical circuit for your tool. This 

circuit must not be less than #12 wire with a 20 A 

time-lag fuse or a #14 wire with a 15 A time-lag 

fuse. 

NOTE: When using an extension cord on a 

circuit with a #14 wire, the extension cord must 

not exceed 25 feet in length. Before connecting 

the motor to the power line, make sure the switch 

is in the off position and the electric current is 

rated the same as the current stamped on the 

motor nameplate. Running at a lower voltage 

will damage the motor. This tool is intended for 

use on a circuit that has a receptacle like the one 

illustrated in Fig. 1.  
Fig. 1 shows a three-pronged electrical plug and 

receptacle that has a grounding conductor. If a 

properly grounded receptacle is not available, 

an adapter (Fig. 2) can be used to temporarily 

connect this plug to a two-contact grounded 

receptacle. The adapter (Fig. 2) has a rigid lug 

extending from it that MUST be connected to 

a permanent earth ground, such as a properly 

grounded receptacle box. 

Fig. 1   

      

Three-Pronged Plug

Grounding Prong

Properly Grounded

Three-Pronged 

Receptacle

Grounding Lug

Make sure this 

is connected 

to a known 

ground.

Two-Pronged 

Receptacle

Adapter

(When using 120 volts only)

More Than  Not More Than 25ft.   50ft.   100ft.   150ft.          
0                         6

18       16       16        14     

6                        10  

18       16       14        12     

10                      12

16       16       14        12     

12                      16

14       12  

Not Recommended 

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