6
MODEL 520
SERVICE ACCESS (3)
FRONT COVER
TO REMOVE:
1. Remove the face cover and bed cover (see pages 4 and 5).
2. Loosen the setscrews (A) and then remove the setscrew (B), (C), (D), (E) and (F).
3. Remove the front cover (see page 20) and disconnect each switch connector.
NOTES: TO DISCONNECT THE CONNECTORS:
Grasp the connector directly with your fingers and pull. Do not pull on the lead wire, as this may
damage the contact sleeve inside the connector.
TO INSTALL:
4. To install the front cover, follow the above procedure in reverse.
NOTES: TO CONNECT THE CONNECTORS:
1. Insert each connector into the connector post (on the printed circuit board) which has the
same color as that of the connector.
2. Insert the connector at the right angle. Then push it straight down until it locks in place.
Setscrew (B)
Setscrew (A)
Setscrew (C)
Setscrew (D)
Setscrew (E)
Front cover
Setscrew (F)