If you can not change the pitch in-flight try it in idle R. P. M or try to move the Switch lever back and forth. Do not copy terrene in cruise pitch. Even if you fly without setting your pitch limits you still need one limit washer the castle nut and the plastic washer. Do not shorten the 12'wires or circuit breaker will pop out sooner. Keep the grease away from plastic and limit washers.
Brushes wear much faster when wet.
Therefore if you really have to fly in a rain pitch the prop for climb, loosen the jam nut, which is against coupling nut, turn brush housing away from brush plates and retorque the jam nut. After you are done with setting the limits and the final installation seal the gaps between the blades with silicon and install the spinner to keep the water and dust from getting into the mechanism. Tie down or put the tape over the brush connectors so they will not come loose in flight. Apply blue loctite on the spinner bolt and bolt and torque to 35 inch XLbs. Maintain the 200-inch XLbs.