Advanced Instruments 3320 - Page 57

37
Troubleshooting & Service
10. Replace the solenoid cover, restore power and recalibrate, if neces-
sary.
No black deposits
on shaft
No filings present
Black deposits on
shaft
Filings present
Plating even, bright
and shiny
Plating uneven with
a dull, hammered
appearance
Impactor with Substantial Wear
Impactor with No Visible Wear
Figure 12: Solenoid Impactor