Do not insert beyond the mark. Be careful not to damage the electric cord inside the Handle. Tighten the Knobs. 3. To operate, the Snow Thrower must have 110-120 VAC power. Provide an extension cord (not supplied) of sufficient length, and meeting the requirements discussed in the previous section. Be careful that the extension cord does not lie in open water or on wet surfaces. Observe all safety precautions mentioned in this manual. 4. If the Snow Thrower gets locked up with ice or operates sl