Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: I received the RK9003 from Amazon. It was shipped with the clamps solid pressed together.  Even hitting the foot pedal very hard it will not release.
Document: This is a well made, solid workplace tool, worthy of all its positive reviews. Setup and operation are both simple and intuitive. Basically, a ratcheting jaw (similar to the old car jack style) is used to provide clamping action. The jaw can be reversed on its slide so you can clamp wide items or close it completely, plus the jaw faces are surfaced with hard rubber pads and are wide and rigid enough to clamp items vertically. The ratchet is operated by a foot pedal.
I have owned the Jawhorse for well over a year now and I LOVE IT! I purchase it from Amazon.com and received it 2 days after ordering.The Jawhorse is designed to last forever. The construction is very solid and it will do everything the advertisements say.It takes up less than a square foot when folded for storage and the set-up is easy and takes less than a minute.
This creates a very portable workbench with an nice flat wood surface.The wide roller wheel is of limited utility but works well over smooth surfaces.The kick lever and lock/unlock lever is very easy to use and clamps very strongly.This is one of those products that I am very hard-pressed to find any features that would lead to serious criticism. I feel the same way about my Little Giant Ladder and all of my Apple products.
A little metal peg tethered by a chain would make more sense to me--just slide it through the holes when you want it to stay put and it ain't goin' nowhere.I have also found that there are many times when I am unable to release the clamp with the foot pedal. Maybe I just don't weigh enough for it, but more often than not I have to really jump on the thing to get it to click and relax.
This tool is invaluable - it has an incredible grip that is great for holding what you're working on. More stable than it looks and VERY fast and easy to use.I rate it 5 stars and only have two notes on it:1) You have to develop a feel for how far to push the foot pedal as larger pieces of wood (over 6") can snap along the grain if they are clamped too hard. That being said, just pay attention and you're fine.
The other thing to beware of is that some of the spring-loaded leg release buttons and other components can pinch your fingers if you're not careful. Pinched fingers...like that never happens to a builder! Once set up, it's simply a pair of padded jaws that clamp the work-piece with a push on the foot pedal. Clamping and releasing are super fast. The jaws really hold tightly but because they are small, much of the material is free to cut, rout or whatever.
After using everything short of sledge hammer, including rubber mallet, pry bar/nail remover and both together and a week or so of frustration, I finally decided to take darn thing apart knowing it would void warranty. I still had the box, but because the tensioning / release foot bar would not fold back up, I could not ship back anyway.Luckily, after taking out the bolts holding the locking mechanism housing I was to get the locking rod inside to release and get jaws to open.
We checked two big box stores for the Jawhorse and they did not have them or none in stock. I saw the item at Amazon.com and ordered it, received it within a few day - FREE SHIPPING! My husband had it put together in a matter of minutes and loves it, easy to store and very strong.Marsha
I've had this product for about a month now and have used it a handful of times. It's super easy to set up right out of the box. Sturdy and seems to be of high quality. The vise works perfect and holds very strong. My only complaint is the foot pedal you use to clamp the vice some times "gives way" and I've had to reset it. Don't know if its just a problem with mine, all of them, or maybe I'm just pressing to hard with my foot.
We'll see if it lasts as long.It clamps really hard. Since you use your foot and the lever arm is the length of the unit, very little foot force is needed to clamp something up tight. I'm guessing it would probably bend if you stood on the clamping lever, but there is no need to clamp anything that tight - put just a small amount of weight on the footpedal and whatever's being clamped isn't going anywhere.The Jawhorse got me out of a jam the very first day I owned it.
Answer: yes