TM 9-2320-280-34
14-10. AMBULANCE HEATER REPAIR (MODEL 10530A) (Cont' )
d
5.
Flame detector switch (8):
(a)
Remove adjusting screw (6), washer (5), and spring (11) from flame detector switch (8).
(b)
Remove ceramic rod (4) from tube (9). Inspect ceramic rod (4) for cracks, chips, or breakage.
Replace flame detector switch (8) if ceramic rod (4) is cracked, chipped, or broken.
(c)
Clean flame detector switch (8) with compressed air.
(d)
Inspect flame detector switch (8) for damaged or defective parts. Replace flame detector
switch (8) if any part is damaged or defective.
(e)
Carefully insert ceramic rod (4) into tube (9). Install spring (11) on channel (10), tip
microswitch (7) down, and install washer (5) and adjusting screw (6).
(f)
Turn adjusting screw (6) clockwise until microswitch (7) just "clicks". Turn adjusting
screw (6) an additional 3/4 turn clockwise, and seal screw (6) in plac with insulating varnish.
e
14-43
