Harman Martin MAC Ultra Performance, Safety And Installation Manual

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MAC Ultra Performance Safety and Installation Manual
Replacing a rotating gobo on Gobo Wheel 2
Gobo wheels 1 and 2 sit very close to each other in the effects module, in almost the same plane of focus.
Gobo wheel 2, the breakup wheel, is the wheel that is closer to the front lens. To replace a rotating gobo on
Gobo Wheel 2:
1. Remove the top head cover as
described in the previous section.
2. See Figure 16. With your fingers,
rotate the gobo that you want to
remove so that you line up a
reference point (for example, the
marking
C shown in Figure 14 on
page 22) on the goboholder with a
reference point in the module.
3. Using a pair of flat-nosed pliers,
grasp the teeth of the goboholder
firmly and pull it out of its clip in
the gobo wheel.
4. For instructions on how to install a
new gobo in a goboholder, see
“Replacing a gobo in a
goboholder” on page 25.
5. Goboholders are held in position
in the gobo wheel by clips (see
Figure 13 on page 22). When you reinstall the goboholder, you must make sure that the jaws of the clip
engage in the flange in the goboholder on both sides of the goboholder.
6. See Figure 17. Line up your reference point on the goboholder with your reference point in the effects
module. Using two fingers as shown at D , bend the thin metal plate on the gobo wheel away from the
wheel very slightly so that you have room to slide the goboholder back into the clip in the gobo wheel.
Holding the goboholder teeth with flat-nosed pliers, slide the goboholder back into its clip.
7. Check that the gobo is pushed fully into its clip and held securely. To check that the goboholder is
correctly installed, rotate the goboholder at least 180° in both directions in the gobo wheel and check
that it and all the other goboholders move freely.
8. If you have finished service work, reinstall the top head cover and its safety cable with reference to
“Opening the head for access” on page 20.
Figure 16: Removing a gobo from Gobo Wheel 2
Figure 17: Reinstalling a goboholder
D