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and put the screw through the green ear. Plug the adapter's two prongs into the outlet, and
replace the center screw. Now plug the machine into the adapter.
Before connecting the tool to a power source (receptacle, outlet, etc.) be sure the
voltage supplied is about the same as that specified on the nameplate of the tool. If one says
120V and the other says 110V then there will be no complications. Never try to plug a 110V
into a 220V outlet, or the other way around. The plug and outlet have completely different
shapes. This is because a power source with a voltage greater than that specified on the tool
can result in a SERIOUS INJURY to the user- as well as damage to the tool. If in doubt, DO
NOT PLUG IN THE TOOL. Using a power source with voltage (110V) less than the nameplate
rating (220V) is harmful to the motor.
Since your tool has a grounded, three-prong plug, you must use a three-prong
extension cord with three prong receptacles. Only use rounded jacket extension cords,
preferable listed by the Underwriters Laboratories (UL). Make sure the cord is rated for
outdoor use if you plan on using the tool outside; if you plan on indoor use, you may also use
an outdoor rated cord. Extension cords rated for outdoor use have the letters "WA" on the
cord jacket.
The extension cord must have a minimum wire size depending on the amperage of the
tool and the length of the extension cord. This size is signified by its AWG (American Wire
Gauge) rating; the smaller the gauge, the greater the cable's capacity. If you are using two or
more cords, the total length of the combined cords must be used to determine the minimum
AWG rating. Each of the cords used must meet this rating.
The chart below is used to determine the rating required according to the length of the
cord(s). The amps of your tool are found either in this manual, or on the nameplate of the tool.
CORD(S) LENGTH (FEET)
WIRE GAUGE REQUIRED
Always inspect extension cords for any damage. If there are any loose, frayed or
exposed wires, damaged insulation, or defective connections, replace the cord.
Harbor Freight Tools can supply UL listed and outdoor rated cords in multiple AWG
ratings if needed.
Make sure your tool includes all accessories and pieces required for operation. Check
off according to the list below. If any pieces are missing, contact Harbor Freight Tools at the
number on the front cover.
1. Mortising Machine
2. Handle (24)
SKU 35570
VOLTAGE WARNING
EXTENSION CORDS
25 50 75 100 125 150 175 200
18 18 16
UNPACKING
16
14
14
12
12
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