Christie Roadie HD+35K User Manual page 154

Section 4: Maintenance
3. Set the ballast breaker/switch to OFF.
4. Disconnect projection head and ballast from AC power supply.
Wearing protective clothing and face shield, unlock the lamp door and open it. Refer to
desired, release the tethered latch mechanism to remove the door entirely.
Unscrew the knob on the lamp cooling compartment door, and remove the door to reveal the cathode end
(-) of the lamp. Refer to
5. Remove the old lamp and inspect the reflector as follows:
a. Loosen setscrews from negative/cathode (rear, 7/64") and positive/anode (front, 3/16") lamp
connectors. These screws are shown in
STRESS the quartz tube.
b. Carefully slip the positive anode connector off the front of the lamp.
c. Handling by the cathode end only, unscrew the lamp from the rear connector and carefully remove
from the projector. Immediately place the lamp inside the protective cover (saved from previous
installation) and then seal it in a heavy carton on the floor where it cannot fall or be bumped.
d. With the lamp removed, visually inspect the reflector for dust. Clean if necessary as described in
Section 4.3 Maintenance and
6. Remove the new lamp from it's protective cover as follows:
a. Remove tape, knurled nut and locking star washer (if present) securing the lamp within its cover.
b. Handling at the ends only, extract the lamp from the cover. Set aside the protective cover for re-use in
your next lamp disposal or for warranty return of an expired lamp.
7. Install the new lamp as follows:
a. With protective clothing and face shield on, insert the threaded cathode (-) end of the lamp into the
negative lamp connector nut located in the rear of the lamp compartment and screw in fully (refer to
Figure 4-1, left portion). Hand-tighten only.
IMPORTANT!
4-6
Never attempt to remove the lamp when it is hot. The lamp is under high pressure when hot
and may explode, causing personal injury and/or property damage.
Shock Hazard. Disconnect both components from AC.
Figure 4-2.
Handle box with extreme caution-the lamp is hazardous even when packaged. Dispose of
lamp box according to safety regulations for your area.
Cleaning.
Handle by the cathode/anode end shafts only, never the glass. Do not over-tighten. Do not
stress the glass.
Figure 4-2. Make sure to apply minimal torque and DO NOT
Figure 4-2. If
Roadie HD+35K User Manual
020-100340-02 Rev. 1 (01-2010)