Mike, There is a sear viewing hole in the trigger assembly. With an empty gun, safety off, release the bolt. While locking the bolt, look in the hole and watch the two sear sections.
The rear screw adjusts the sear engagement. This critical adjustment should be set where the edges of the sear safely overlap. If the sear is set on the edge, a bump to the gun could set it off.
The top front screw is set for trigger over travel. Again, release the bolt and lock it. Squeeze the trigger and set the top screw to a point where there is minimal trigger movement after the trigger releases.
The front lower screw is for trigger pressure. Unscrewing it makes the trigger lighter. This is a critical adjustment, a fraction of a turn will make a big difference. I normally set the trigger tension for 3.5 to 4 lbs. Anything lighter is dangerous with the stock trigger assembly. If you find the trigger tension is still to harsh after backing this screw out, then there is something wrong with the trigger assembly (not unusual).