TM 9-2350-222-10-2
DRIVE THE VEHICLE (OPERATE PERISCOPES) - Continued
9. Remove dust caps (P) from focus controls (Q).
10. Remove and retain locknuts (R) from focus controls (Q).
11. After 5.minute warmup period, sight through eyepiece (K).
12. Using screwdriver (A), adjust focus screws (S).
13. Screw locknuts (R) onto focus controls (Q) until finger
tight.
14.
Screw dust caps (P) on focus controls (Q) until finger
tight.
15. Return screwdriver (A) to stowage
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