Welch Allyn 49506 Light Source - User Manual - Manual (Page 10)

1-6
LAMP REPLACEMENT
CAUTION: Lamp may be hot. Allow the lamp to cool before replacing.
1. Turn unit off and unplug the power cord from both the wall outlet and the Welch
Allyn Light Source.
2. Remove the lamp door from the bottom of the Welch Allyn Light Source by
unscrewing the lamp access knob on the back of the light box.
3. Disconnect the lamp connector assembly and remove the lamp from the holding
spring assembly.
4. Replace with Welch Allyn replacement lamp #09500 only. Do not touch the lamp
itself, or the interior reflective surface of the lamp. Skin oils on the lamp will cause
premature lamp failure. Hold lamp by the outside of the reflector or the connector
only. Remove any grease or fingerprints with a clean cotton swab moistened with
alcohol. Do not leave any lint on the lamp.
5. Reconnect the lamp to the lamp connector and place in the spring mechanism.
Be sure that the pin on the lamp is properly seated in the slot on the lamp
bracket.
6. Reattach the lamp door securely. The unit will not power up unless the lamp door
is seated properly.
Lamp
Access
Knob
Lamp Access
Door
Lamp Connection
Assembly
Lamp
Holding Spring
Align Pin