Before performing maintenance, cleaning, repairs, or inspection on a snowblower, disengage all control levers, stop the engine and wait for the moving parts to stop completely. If the model has a key, remove it. On a gasoline-powered model, disconnect the spark plug ignition wire, grounding it against the engine. Disconnect an electric model from the
power source. Follow any pre-maintenance instructions the manufacturer specifies, including those for the use of protective gear while performing the work. Maintenance may differ, depending on your snowblower model.