Figure 4-1. Gear train assembly A3, exploded view.

nuts A2H4 that secure discriminator board A2 to coupler

NOTE

assembly.

If the old shaft MP10 is used, larger

g. Replacement of Servo Amplifier Card A1.

spring pin Is required to assure the gear

(1) Resolder all wires. Insure that wires

Is securely positioned on the shaft.

are connected to proper terminals.

for

(2) Attach servo amplifier card to Al to

replacement of A3C1.

backing plate MP21 by replacing five screws A1H1. Nut

Replacement of Phase Discriminator Board

and washer MP6H1 and loop clamp MP6 are attached to

A2.

screw A1H1.

(1) Resolder all wires. Insure that wires

(3) Replace cover MP11 by tightening four

are connected to proper terminals.

screws MPllH4 and two screws MP11H2.

(2) Replace four screws, lockwashers, and

Figure 4-1. Gear train assembly A3, exploded view.

4-9

Index