When a tractor reaches to a gradient its rpm drops, so to reduce the rpm drop so that it can easily go up the gradient what measure should be taken? Please reply fast

. Adjust idle rpm.

. Clean/replace air filter.

. Replace spark plugs, if they have not been recently changed and it's not a diesel. Go over the ignition system, ensuring the battery is fully charged and that battery terminals and connections are clean and tight. Ensure spark plug wires, rotor, coil, and distributor cap are in good shape.