5 General Maintenance
134 5975/5977 Series MSD Operating Manual
* The number in parenthesis is the number engraved on the lens
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 17 Parts list for EI HES (Figure 41) (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.