SECTION 514-155-300
protected from excessive wear by applying a coat
of 639A flat clear lacquer or its equivalent.
2.
.REPLACEMENT OF LAMPS
2.01
ON-OFF Lamp E1 on Telephone Answering
Sets With Serial Numbers 100 Through
15200:
(1) Remove top cover.
(a) Remove four retaining screws.
(b) Lift cover from set.
(2) Remove List 3 recorder (3.02).
Note:
ON-OFF lamp E1 is mounted on a
bracket with a slotted screw hole and is
located directly beneath the speaker control
switch.
(3) Loosen the retaining screw (Fig. 10) in the
slotted screw hole until bracket is free.
Pivot the bracket about the screw to expose
lamp and lamp socket.
(4) Pull out and hold spring clip on side of
lamp socket and remove lamp.
(5) Replace lamp E1 and reassemble in reverse
order.
2.02
ON-OFF Lamp E1 on Telephone Anwering
Sets With Serial Numbers 15201 And
Higher:
(1) Remove the Bell System Medallion from the
front panel by grasping it from the front
and extracting it.
(2) Using a 553A switchboard lamp extractor,
remove the lamp from its socket.
(3) Replace lamp E1 and medallion.
2.03
IN-USE Lamp
E2 (All
Sets):
(1) Remove top cover (2.01).
(2) Remove ENA relay (3.04).
(3) Pull out and hold spring clip on side of
lamp socket and remove lamp E3 (Fig. 4).
Page 2
(4) Replace lamp E3, ENA relay and top cover .•
3.
REPLACEMENT OF PLUG-IN UNITS
3.01
KS-19245, List 2 Recorder:
(1) Remove top cover (2.01).
(2) Remove List 2 recorder (Fig. 3):
(a) Remove three retaining screws located on
bottom of set (Fig. 2).
(b) Grasp List 2 recorder by its motor and
chassis and carefully remove it from its
plug-in receptacle.
(3) Plug new recorder into the plug-in receptacle
(Fig. 4).
(4) Replace and tighten the three retaining
screws.
(5) Replace outer cover and tighten four retaining
screws.
3.02
KS-19245, List
3
Recorder:
(1) •Remove top cover (2.01).
(2) Remove list cartridge (6.01).
(3) Remove four screws and remove side cover
(Fig.
7).
(4) Remove three retaining screws (Fig. 2)
located on the bottom of the set.
Do not lift or pry on the trim plates
(Fig.
3).
(5) Firmly grasp chassis of List 3 recorder and
carefully withdraw until plug-in receptacle
is disengaged (Fig. 4).
(6) Carefully move recorder toward rear of set
to clear plastic MESSAGE INDICATOR DIAL
(Fig. 9) and remove recorder from set .•
(7)
Plug new recorder into the plug-in receptacle
(Fig. 4).
514-155-300-i03_1975-03-02.Jpg Scanned
by Frank Harrell, (Cowboy
Frank) Castle
Rock, Colorado Feb
23,2012 23:19:04
