Linde;
The power unit may be Nissan, but disign and engineering of remainder of the vehicle is the manufacturer of the lift truck. This is just one component of the entire vehicle. The wedge you might use is to compare the major lift truck manufacturers that use this same power unit in their chassis. I can point out that the Nissan - Mitsubichi lines are a joint venture engineering design. The basic air flow for the cooling system is being drawn from the ground. Even with trash screens installed this now adds the job of keeping the screens cleanded for adiquate air flow. Just an after thought you might find something out about the issue you are dealing with by contacting a representative of Jefferson Smurfit because they deal with similar end user issues.