TM 9-2320-280-34
14-11. AMBULANCE HEATER REPAIR (MODEL 10530B) (Cont' )
d
5.
Flame detector switch (23):
(a) Remove adjusting screw (21), washer (20), and spring (19) from flame detector switch (23).
(b) Remove ceramic rod (18) from tube (24). Inspect ceramic rod (18) for cracks, chips, or breakage.
Replace flame detect or switch (23) if ceramic rod (18) is cracked, chipped, or broken.
(c)
Clean flame detector switch (23) with compressed air.
(d) Inspect flame detector switch (23) for damaged or defective parts. Replace flame detector switch
(23) if any part is damaged or defective.
(e) Carefully insert ceramic rod (18) into tube (24). Install spring (19) on channel (25), tip
microswitch (22) down, and install washer (20) and adjusting screw (21).
(f)
Turn adjusting screw (21) clockwise until microswitch ( 2) just 'clicks", and stop turning screw
2
(21). Turn adjusting screw (21) an additional 3/4 turn clockwise, and seal screw (21) in place with
insulating varnish.
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