System Operation - MSA ClearCommand HCS Operation And Maintenance Instructions

DONNING THE HELMET
Evaluate this unit and any radio transceiver with which
it may be used. Be certain the unit is not affected
adversely by radio frequency energy.
Evaluate this unit and any radio transceiver with which
it may be used as a source of radio interference to
other apparatus before entering a hazardous atmos-
phere.
The communication system must be tested before
entering a hazardous atmosphere. If the communica-
tion system fails to operate as designed, disconnect at
the radio and use the radio independently from the
communication system.
• Before donning the helmet turn the ratchet counter
clockwise to increase the head sizing of the suspen-
sion.
• Adjust the ratchet by turning the large knob on the
headband clockwise, until comfortable.
• The Helmet must be snug to ensure optimal radio
transmission.
• Follow the Helmet Users Instructions for proper sus-
pension adjustment.
• Attach the Connector from the Helmet Microphone to
the Lapel Microphone or Basic PTT Radio Interface.
TAL 5010 (L) REV. 4 - 10046197

SYSTEM OPERATION

ATTACHING HELMET MIC. TO LAPEL MIC. OR
BASIC PTT
• Lift the dust cover, revealing the connector at the top
of the Lapel Microphone or Basic PTT.
• Insert single-pin connector into the receptacle at the
top of the Lapel Microphone or Basic PTT.
• Ensure the connector is fully inserted.
Note: If the Lapel Mic. or the Basic PTT requires a twopin
connector, the wrong Lapel Mic. or Basic PTT is being
used.
Port for
Remote
Finger PTT
Do not attempt any repairs beyond those specified in
this manual; otherwise, serious injury or death could
result. Only trained or certified personnel, authorized
by MSA, are permitted to maintain this Helmet
Communications system.
4
Housing
Ear Speaker
Single Pin Connector
Dust Cover
WARNING
Dust Cover