General Maintenance 6
5977B Series MSD Operating Manual 167
* The number in parenthesis is the number engraved on the lens
8 M2 x 0.4 screw x 12 mm long gold plated screw G7002-20083
9 Source body G7002-20084
10 Post extractor lens 2 (3)* G7002-20090
11 Post extractor lens 1 (4)* G7002-20104
12 M2 x 6 mm gold plated screw G7002-20109
13 Locking ring lens insulator G7002-20126
14 High efficiency dual filament G7002-60001
15 Ring heater/sensor assembly G7002-60043
16 Source mount 1.5 mm G7002-60053
17 Repeller assembly G7002-60057
Not shown HES assembly G7004-67055
Table 1 8 Parts list for EI HES (Figure 53) (continued)
Item number Item description Part number
Use care when inserting the lenses into the lens insulator casing. Putting excessive
stress on this casing can break or crack it. If this happens, do not attempt to operate
with a defective lens insulator, it must be replaced.