I3 V2 to V2.1 UPGRADING INSTRUCTION
1. Replace the Wing Nuts by
Thumb Nuts.
1.1 Push the heating plate and twist
the wing nuts clockwise to unscrew
wing nut.
1.2 Twist the thumb Nut anticlockwise
to tighten the thumb nut
1.3 Repeat 1.1 and 1.2 to replace the
rest 3 wing nuts with thumb nuts.