TM
5-5420-226-20-1
DETAILED
TROUBLESHOOTING
PROCEDURE
Symptom-73
SUPPORT
SYSTEM
- PERSONNEL
HEATER
~
NO HEAT
FROM
PERSONNEL
HEATER.
B
FOR CLARITY
QUADRANT
ASSEMBLIES
NOT SHOWN
Thisprocedureis
tobeperformed
by
two
persons.
The
lead
person
is
referred
to as the first technician
and
shall direct the activity
of the second
person called the second
technician.
I
J
Check if personnel
heater
blower
motor
is working.
Second
Technician
(Operators
Statmn)
l
l
l
l
l
l
.%
LMASTER
BATTERY
switch
OFF.
Set HEATER
MASTER
switch
ON.
Set PERSONNEL
HEATER
HI/LO
switch
ON-LO.
Listen
fir
sound
of personnel
heater
blower
motor
running.
Set PERSONNEL
HEATER
HI/LO
switch
ON-HI.
Listen
for sound
of personnel
heater
blower
motor.
Can personnel
heater
blower
motor
be heard?
~
rjk
..
o
-
Q
,,... -
m
m,
9
.4
/
\
HEATER
MASTER
Hi/LO
SWITCH
SWITCH
\r HfAlMASIof
IiiiiiY
~j$fi
@
;: :...
.!
oN-
.
0r4+tl
..
. ..
,.
off
~
of F
,..
.
.,
ON-1o
MASTER
CONTROL
PANEL
v
TA107374
4-685