Jet Tools J- A5818 用户手册

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页码 24
 
13
Grounding Instructions 
 This tool must be grounded 
while in use to protect the operator from electric 
shock. 
In the event of a malfunction or breakdown, 
grounding provides a path of least resistance for 
electric current to reduce the risk of electric shock.  
This tool is equipped with an electric cord having an 
equipment-grounding conductor and a grounding 
plug. The plug must be plugged into a matching 
outlet 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 
outlet, have the proper outlet installed by a qualified 
electrician. 
Improper connection of the equipment-grounding 
conductor can result in a risk of electric shock. The 
conductor, with insulation having an outer surface 
that is green with or without yellow stripes, is the 
equipment-grounding conductor. If repair or 
replacement of the electric cord or plug is necessary, 
do not connect the equipment-grounding conductor 
to a live terminal. 
 
Check with a qualified electrician or service 
personnel if the grounding instructions are not 
completely understood, or if in doubt as to whether 
the tool is properly grounded. Use only three wire 
extension cords that have three-prong grounding 
plugs and three-pole receptacles that accept the 
tool’s plug. 
Repair or replace a damaged or worn cord 
immediately. 
Extension Cords 
Make sure your extension cord is in good condition.  
When using an extension cord, be sure to use one 
heavy enough to carry the current your machine will 
draw. An undersized cord will cause a drop in the 
line voltage resulting in power loss and overheating. 
The table following shows the correct size to use 
depending on the cord length and name plate 
ampere rating. If in doubt, use the next heavier 
gauge. Remember, the smaller the gauge number, 
the heavier the cord. 
 
Length of Cord 
AWG 
      
0–25 
 
16 
       
25-50 
 
14 
       
51-100 
 
12 
The drill press with a 230-volt plug should only be 
connected to an outlet having the same 
configuration (D, Fig. 7). No adapter is available or 
should be used with the 230-volt plug. 
Important: In all cases (115 or 230 volts), make 
certain the receptacle in question is properly 
grounded.  If you are not sure, have a registered 
electrician check the receptacle.