One New Aftermarket Replacement Reversible Fan Fits Caterpillar Industrial Construction Models: D6R, D7H, D8NHow Reversible Fans Work:1. With the engine off, the ignition locked in the off position, and any required guarding removed, you are now ready to reverse your fan. There is a pink DANGER tag provided with your fan that should also be fastened to the ignition switch panel.2. Individually reverse each blade by simply pushing inward towards the hub to compress the spring and then begin to rotate the blade; it should only turn in one direction.3. Once the blade begins to rotate, you no longer need to keep pushing inward; continue to turn the blade toward the desired position.
4. Once the blade is rotated fully to the desired position, the blade will spring outward and lock itself into place. Now the blade will not be able to be turned around without pushing it inward again. The reversing of one blade is now complete; continue to reve