Even though the actuator weathervanes the crane, the light does not come on. There is a microswitch on the back of the slew motor. Proper adjust by the manual would require removing the slew motor. For a field fix, remove the cover (see previous post for proper removal). With the cover removed, take crane out of weathervane (slew brake set). There is an adjustable plate that contacts the microswitch when activated. Loosen the screw with a 8mm wrench and pull the contact plate up towards the microswitch. Tighten slightly more than finger tight. Activate the weathervane and verify the light comes on. If it comes on, take the crane out of weathervane and tighten completely. Replace cover as outlined in the previous post.
Rocky Mountain Crane Service Logs