ARMY TM 9-6115-604-12NAVY NAVFAC P 8 633-12Figure 4-62. Control Room Components and Related Parts4-90.60 HZ AND 50 HZ CLOCKS M110 AND M111.a.Remove.(1) 60 Hz and 50 Hz clocks (4 and 5, Figure 4-63) are mounted on the upper front panel, control cabinet A.(2) Tag and disconnect wires from clock terminals.(3) Remove nut and captive washer assemblies (1), flat washers (2), and threaded spacers (3) while holding theclock face on the other side of the panel.(4) Carefully remove defective clock (4 or 5).4-157
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