(1) R e m o v e t h e p o w e r c o r d c o n n e c t o r
w i t h d r a w it.
plug from the INTERCOM power
(3) Remove the spare starter from its
duct receptacle (fig. 16).
storage bracket (fig. 16). Insert the
(2) R e l e a s e t h e m o u n t i n g c l a m p s b y
new starter, press in, and turn it
l o o s e n i n g the captive wingnuts.
clockwise until it seats.
(3) D i s c o n n e c t the telephone connecting
(4) Replace the lamp and light shield
cord from the binding posts on the
(a(4) through (6) above).
rear of the LS-147(*)/FI.
c. Neon and Incandescent Lamps. To re-
(4) Remove the LS-147(*)/FI from its
m o v e a defective neon or incandescent lamp,
mounting Psition.
u n s c r e w it from its socket.
b . Replacement. Replace the LS-147(*)/FI
by following the procedures in a(1) through
Heater
( 4 ) above in the reversed order.
a. Removal.
SB-22(*)/PT
HEATER-OFF-FAN
(1) O p e r a t e t h e
a. Removal.
s w i t c h to OFF.
(1) R e m o v e the wingnuts that secure the
(2) Remove the power cord connector
S B - 2 2 ( * ) / P T retaining bar (fig. 13)
plug from the HEATER receptacle
a n d raise the retaining bar.
(fig. 11 or 14).
(2) Slide
the
SB-22(*)/PT
forward
(3) Loosen the four turnlock fasteners
from the rack mounting and expose
t h a t secure the heater to the mount-
the rear of the SB-22(*)/PT.
ing base.
(3) D i s c o n n e c t the wires from the bind-
( 4 ) Remove the mounting base knob.
ing posts on the rear of the SB-
( 6 ) S 1 i d e the heater to the right until it
22(*)/PT.
clears the flange on the mounting
(4) Remove
the
SB-22(*)/PT.
Remove
b a s e and lift out the heater.
t h e batteries from the SB-22(*)/PT
b. Replacement.
(TM 11-8805-262-12) .
( 1 ) Slide the heater onto the mounting
b. Replacement. R e p l a c e t h e S B - 2 2 ( * ) / P T
b a s e so that it engages the flanges.
b y the following appropriate procedures in
(2) Tighten the four turnlock fasteners.
(3) Replace and tighten the mounting
base knob.
TA-312/PT (PHONE 4, Mounted)
Blower Cover
(fig. 11 and 24)
a. Removal.
a. Removal.
(1) O p e r a t e t h e a s s o c i a t e d B L O W E R
(1) R e m o v e t h e t e l e p h o n e c o n n e c t i n g
s w i t c h to OFF (fig. 16).
cord leads from the LINE binding
(2) Remove the power cord connector
p o s t s of the TA-312/PT.
plug from its receptacle.
(2) R e m o v e t h e f l a t h e a d s c r e w o n t h e
( 3 ) R e m o v e the screws that secure the
s i d e of the mounting bracket.
c o v e r to the front wall and lift off
(3) L i f t t h e T A - 3 1 2 / P T o u t o f t h e
the cover.
mounting bracket and remove the
b. R e p l a c e m e n t . Replace the cover by fol-
h o l d i n g plate from the buzzer recess
lowing the procedures in (1) through (3)
o n the side of the TA-312/PT.
a b o v e in the reversed order.
(4) R e m o v e the batteries from the TA-
312/PT (TM 11-2155).
b. R e p l a c e m e n t . R e p l a c e t h e T A - 3 1 2 / P T
LS-147(*]/FI
b y following the appropriate procedures in
a. Removal.
