GE HEALTHCARE
DIRECTION 2307224-100, REVISION 6DISCOVERY LS SYSTEM SERVICE MANUAL
Chapter 6 - Table Page 141
6.2.6.8 Drill a New Set of PET Detent Holes 10mm Closer to the CT Detent
Follow the instructions in this section if the distance between PET and CT scan planes falls between
651 and 661mm.
1.) Refer to Figure 6-37. If necessary, designate the drill holes with a permanent marker.
2.) Tape a piece of paper or paper towel to the interior of the rail to prevent the debris from
collecting on the bearing rail.
3.) Use a 4.2 mm bit to drill the template holes.
• Recommended: Use cutting oil when drilling.
• Keep the drill perpendicular to the rail while drilling.
• Stop frequently to let the drill bit cool.
4.) Use an M4 tap to finish the holes. Tap from the interior, outward.
5.) Vacuum all debris from the area.
Figure 6-37: 10 mm Offset Drill Holes
6.2.6.9 Drill a New Set of PET Detent Holes 20 mm Closer to the CT Detent
Follow the instructions in this section if the distance between PET and CT scan planes falls between
641 and 651mm.
1.) Refer to Figure 6-37 and Figure 6-38. If necessary, designate the drill holes with a permanent
marker.
2.) Tape a piece of paper or paper towel to the interior of the rail to prevent the debris from
collecting on the bearing rail.
3.) Use a 4.2 mm bit to drill the template holes.
• Recommended: Use cutting oil when drilling.
• Keep the drill perpendicular to the rail while drilling.
• Stop frequently to let the drill bit cool.
4.) Use an M4 tap to finish the holes. Tap from the interior, outward.
These holes shift the PET detent 10 mm closer to the CT detent.
These holes shift the PET detent adjuster 10 mm.
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