Maintenance—455/A2/B2
SCREW
TO REMOVE MODULE PULL
STRAIGHT AWAY FROM MAIN
MODULE INTERFACE CONNECTOR
POWER SWITCH EXTENSION
ROD SNAPS INTO PLASTIC
RETAINER ON POWER SWITCH
1907-47
Fig. 5-9. Horizontal Module removal.
Horizontal Module Removal (Fig. 5-9)
To remove module:
1. Remove two screws holding module.
2. Unsnap the POWER switch extension from clip on
Power switch shaft.
3. Pull plug-in module straight away from main module
interface connector.
To install module:
1. Place module interface plug over main module inter
face connector and press firm ly into place.
2. Snap POWER switch extension into clip on POWER
switch shaft. (Yokes on plastic clips must be aligned be
fore extension can be snapped into place).
3. Secure module with two screws.
Board Locations
Figure 5-10 shows the general location of the circuit
boards in the B2 Module to facilitate board replacement.
A14
B TIMING
SWITCH BOARD
1907-48
Fig. 5-10. Circuit board locations.
REV. A, OCT 1975
5-11