Screw D (L30, L55, L56, L72 L60AT, HC-190)

Toyotomi Toyostove Laser 30, Laser 56, Laser 60AT
Laser 30, Screw D is located next to High Limit Switch.
Laser 56, Screw D is located next to Heat Chamber Assembly.
Laser 60AT, Screw D is located next to Heat Exchanger.