Textron Greenlee 77M-G Manuel D'instructions page 5

Safety
Safety is essential in the use and maintenance of Greenlee tools
and equipment. This instruction manual and any markings on
the tool provide information for avoiding hazards and unsafe
practices related to the use of this tool. Observe all of the safety
information provided.
Purpose of this Manual
This instruction manual is intended to familiarize all personnel
with the safe operation and maintenance procedures for the
Greenlee 77M-G, 77HP-G, and 77HP-G/6A Tone Generators.
Keep this manual available to all personnel.
Replacement manuals are available upon request at no charge
at www.greenlee.com.
Operation
Electric shock hazard:
• When the tone generator is plugged into a modular jack,
potentially hazardous voltage from the telephone line is
present on the alligator test leads.
• Before opening the case, remove the test leads from the
circuit and shut off the unit.
Failure to observe this warning could result in injury and can
damage the instrument.
All of the following tests can be performed by using the red and
black test leads (as described) or the modular plug.
Note: When using the modular test plug, the polarity test
function applies to Lines 1 and 2 USOC (Line 1 only for 77M-G).
The continuity and tone functions only apply to Line 1.
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