TM
55-6680-234-40
Wiring Diagram. Note that end cov-
above. Operate indicator generator
er is marked "FM" and "RM" sig-
at 4470 RPM. Adjust return path
nifying front motor and rear mo-
(10 of figure 9) to obtain a read-
tor; attach wires accordingly. Use
ing of 7000 RPM on engine pointer.
solder 63/37 lead-tin mixture.
If necessary, check magnetism of
m. Calibrate the assembled mechanism as
front magnet assembly (1 of figure
follows:
(1) Place mechanism in the vertical posi-
this reading. If magnet assembly re-
tion (dial horizontal). Check align-
quires remagnetization, be certain to
ment of pointers; if necessary, set
submit it to the thermocycle de-
pointers at zero by adjusting hair-
scribed in the note following e
spring plate (16 of figure 8 and 10).
above. Secure return path in posi-
(2) Connect front or engine motor assem-
tion. Check 0, 4000, and 7000 test
bly to indicator generator TTU-25/
E. Rotor assembly must start with
the application of 150 RPM. If not,
to assure that calibration is within
check magnetization of rotor assem-
tolerance. If mechanism is not prop-
bly (14 of figure 9). Refer to f
erly calibrated at this point, the fault
Figure 5. Alignment Fixture.
15
