3 Field Lamp Replacement - GE AMX-4+ Technical Manual

GE MEDICAL SYSTEMS
REV 5
1 3 Field Lamp Replacement
CAUTION
ILLUSTRATION 1-4
FIELD LAMP REPLACEMENT
1. Remove the rear cover on the collimator by removing four metric Phillips
head screws holding it in place. Remove the cover. See Illustration 1-4.
2. Close the collimator blades. This makes it easier to reach the lamp for removal
and replacement.
Field Lamp Damage!
Field lamp should never be touched with bare fingers since chemicals on skin
will damage lamp and reduce its useful life. Always use gloves, tissue or soft
cloth when handling lamp. If outside of the lamp becomes contaminated,
clean with a soft cloth dampened in water. Wipe dry after cleaning.
3. Carefully remove the lamp by pulling it straight back and out of its receptacle.
Replace it with a new lamp. Refer to renewal parts listing for correct lamp.
4. Whenever a lamp is replaced the light field and x-ray field sizes must be checked
to be certain the difference between them does not exceed a specified maximum
tolerance. Refer to Section 1-4, Adjusting the Field Lamp, to make these meas
urements and any necessary adjustments.
1-5
(MODEL 2169360, 2236420 & 2275938 SERIES)
DIRECTION 2173225-100
LAMP
AMX-4+ SERVICE