Screen Assembly Removal/Replacement

CAUTION: In handling the irradiator or screen assembly, try to avoid all direct contact with the screen, as it punctures easily. Do not apply pressure to the screen.

1.Refer to Figure 31. Loosen the four M3 screen retaining screws, using three turns each. Repeat, this time removing screws. Grasp the screen frame by both ends, taking care not to twist or bend the screen itself, and remove the screen assembly.

2.To replace an existing screen or install a new one, place the screen assembly in position.

3.Apply pressure to the frame only and press firmly into place. Install the four screws alternately, working from side to side. Tighten each to a snug position; finally tighten to 0.9 N-m (8 inch lbs.) using a torque-controlled screwdriver (see Figure 37).

Lamp Bulb Removal/Replacement

WARNING: During operation the lamb bulb and adjacent metal surfaces become very hot. Operate the blower for about one minute to cool hot surfaces.

1.Remove the screen as described in “Screen Assembly Removal/Replacement” on page 93.

2.Refer to Figure 32 on page 94. Using clean cotton gloves or lint free tissue, grasp the lamp bulb at one end between the thumb and fingers and apply firm pressure axially toward the opposite end. When the tip of the bulb has cleared its retaining hole and is free to move past or along the end reflector, gently slide it up and out.

Installation, Operation, and Maintenance Manual # 509252 Rev R

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