Emergency Release Knob Cannot Be Pulled on my Patriot RSL

If the emergency release knob cannot be pulled, first verify that it is not already pulled by trying to roll the gate. If gate will not move, try to pull the emergency release knob while agitating the gate (shake gate in direction of travel).
Emergency release knob that is difficult to pull represents something is in a bind. Check the gate wheels and guide rollers. Verify the chain is on all the rollers and not twisted or overly tight.