Nicols GP 40 R1 Manuel D'utilisation page 17

11. Replacement of protective tude: twist off the tube to replace. The tube is 15 A, φ6 * 30 mm.
12. Twist off the screws on back cover and remove it, then you will see the projector inside structure as below
finge shown. Twist off the nuts, get the reflective bowl down, if the surface of the reflective bowl is not
bright enough, then remove the bolts to replace.
24. screw nut 25. reflective bowl
16-
26. Bolts