How to tighten a drive belt<br>Disconnect the battery. Before you get started, disconnect the battery to ensure the engine cannot be started while you're working under the hood. As a precaution, always disconnect the battery before putting your hands in the engine bay of your vehicle.
You must disconnect the battery to tighten a drive belt.
You don't have to disconnect it. It's only done for safety reasons.
( z1 obligate :ARG2 ( z2 disconnect :ARG0 ( z3 you ) :ARG1 ( z4 battery ) :purpose ( z5 tighten :ARG0 z3 :ARG1 ( z6 belt :purpose ( z7 drive ) ) ) ) )