TM 1-1520-238-T-5
8–189
8–105. MISCELLANEOUS INSTRUMENTS – MAINTENANCE OPERATIONAL CHECK (cont)
8–105
Task
Result
c. If pilot clock (fig. 8–54) is not running, wind
clock by turning knob on face of clock.
If pilot clock does not run after winding, replace clock
(TM 1-1520-238-23).
d. Set pilot clock time by pulling and turning
knob.
If pilot clock hour and minute hands will not move,
replace clock (TM 1-1520-238-23).
e. Push knob three times.
If pushing knob first time on pilot clock does not reset
sweep hand and elapsed time hand (to top of clock
face), replace pilot clock (TM 1-1520-238-23).
If pushing knob second time on pilot clock does not
start hands moving replace pilot clock
(TM 1-1520-238-23).
If pushing knob third time on pilot clock does not stop
hands from moving, replace pilot clock
(TM 1-1520-238-23).
PUSH HARD
0
11
10
9
8
7
6
5
4
3
2
1
55
50
45
40
35
30
25
20
15
10
5
60
M68-070
ELAPSED TIME HAND
SWEEP HAND
KNOB
Figure 8–54.
Clock
f. On pilot EXT LT/INTR LT panel (fig. 8–52),
turn INST control to OFF.
g. On CPG circuit breaker panel 1 (fig. 8–55),
close PRI LT circuit breaker.
M68-072
PRI LT
Figure 8–55.
CPG Circuit Breaker Panel 1
