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Page Title:
Removal of Power Amplifier Rotor Assembly |
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|  (3) Remove the driver rotor and the
and lockwashers marked (3, fig.
grounding spring marked 1 (1, fig.
the tube chassis. Do not misplace
sis. If necessary, turn the rotor
the small relay push rod.
(8) With relay K101 pulled away from
slightly to disengage the stator.
the chassis, unsolder capacitor
d. Removal of Rf Tuning Rotor Assem-
bly.
(1) Loosen the setscrew (6, fig. 70)
74) terminal.
and remove the coupler (3, fig. 74)
(9) Unsolder the purple lead 7 (7, fig.
from the tuning shaft.
(2) Remove the three bearing retainer
(10) Unsolder the green, brown, orange,
screws at the front of the tube chas-
and red leads (1, fig. 72).
sis casting (fig. 95).
(11) Remove the ground terminal (2, fig.
(3) Slide the partition grounding
fingers (2, fig. 74) off the tube
(12) Unsolder coil L114 from the lug
chassis casting.
(1, fig. 73).
(4) Remove the three screws in the
(13) Unsolder capacitor C145 (fig. 73)
rear bearing retainer, marked 6
from the V105 plate clips (fig. 70).
(fig. 73).
(14) Remove the four retaining screws
(5) Slide the rear bearing retainer to
(2, 3, 4, and 5, fig. 73), which fas-
the rear and lift the rf tuning rotor
ten the tube chassis to the power
assembly out through the slots in
amplifier chassis.
the tube chassis casting.
(15) Loosen the setscrew (5, fig. 70)
e. Replacement of Rf Tuning Rotor As-
and pull the castings of the two sub-
sembly.
assemblies apart.
(1) Slip the rf tuning rotor assembly
b. Removal of Power Amplifier Rotor
into the slots in the tube chassis
Assembly
casting.
Note. The power amplifier, the driver, and the rf
(2) Replace the three screws in the
t u n i n g rotor assemblies must be removed in the
rear bearing retainer (6, fig. 73).
order listed.
(3) Replace the three screws in the
front bearing retainer (fig. 95).
(1) If the tube chassis and power am-
(4) Slide the three partition grounding
plifier chassis have not been re-
fingers (2, fig. 74) back on the tube
moved, loosen the setscrews (5,
fig. 70).
chassis casting.
(5) Replace the coupler (3, fig. 74) on
(2) Remove the three screws (1, fig.
the rf tuning shaft and tighten the
setscrew (6, fig. 70).
(2, fig. 70) from the power ampli-
f. Replacement of Driver Rotor Assem-
fier chassis.
bly.
(3) Loosen the setscrew (4, fig. 70).
(1) Replace the grounding spring (1,
(4) Loosen the four setscrews on the
fig. 74). Line the spring up with the
power amplifier rotor (3, fig. 70).
key on the stator block.
(5) Pull the power amplifier shaft out
(2) Mount the driver rotor assembly,
through the rear of the casting and
inserting the insulator cylinder in
slide the power amplifier rotor as-
the grounding spring.
sembly out of the chassis.
(3) Slip the driver rotor shaft through
c. Removal of Driver Rotor Assembly.
the center of the rotor assembly.
(1) Loosen the coupler clamp screw on
Do not tighten any setscrews.
Z107 (fig. 73).
(2) Push the driver rotor shaft out of
g. Replacement of Power Amplifier
the rotor assembly through the
Rotor Assembly.
(1) Place the power amplifier rotor
power amplifier rotor assembly
assembly in position to insert the
space.
141
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