Before starting to change a belt on a belt drive blower, the technician should:
A) Turn the power to the unit off and lock it out.
B) Put on heavy work gloves in case the unit is inadvertently started while changing the belt.
C) Turn the thermostat off and leave instructions not to turn it on.
D) Wedge a metal bar between the pulley and the unit housing to prevent it from starting.
A
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