Carrier Supra 950MT Operation & Service Manual page 14

Under no circumstances should ether or any other starting aids be used to start engine.
Always place the RUN/STOP switch in the STOP position and turn off the power supply before
disconnecting the power plug from the unit.
Make sure the power plug is clean and dry before connecting to any power source. Do not
attempt to connect or remove power plug or perform service and/or maintenance before ensur-
ing the unit RUN/STOP Switch is in the STOP position, the I/O switch is in the "O" position and
the external power circuit breaker is OFF.
Inspect battery cables for signs of wear, abrasion or damage at every pre trip inspection and
replace if necessary. Also check battery cable routing to ensure clamps are secure and cables
are not pinched or chafing against any components.
Beware of V-belts and belt-driven components as the unit may start automatically. Before ser-
vicing unit, make sure the Run/Stop switch is in the STOP position. Also disconnect the nega-
tive battery cable.
Do not use high pressure water spray to avoid damaging condenser fins.
Do not allow insulated jumper wire to touch any ground.
Do not use a nitrogen cylinder without a pressure regulator. Cylinder pressure is approxi-
mately 2350 psig (159.9 bar). Do not use oxygen in or near a refrigerant system as an explosion
may occur.
Observe proper polarity when installing battery. The negative battery terminal must be
grounded. Reverse polarity will destroy the rectifier diodes in alternator. As a precautionary
measure, disconnect positive battery terminal when charging battery in unit. Connecting char-
ger in reverse will destroy the rectifier diodes in alternator.
62-11863
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