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TM 5-4210-220-12
4-19. WINTERIZATION SYSTEM - Continued
d.
Flame Detector Repair
NOTE
This can be replaced without
removing complete unit from truck.
(1)
Disconnect fuel lines (6).
(2)
Disconnect wiring harness (7).
(3)
Loosen nuts (1) and swing eyebolts (5)
clear.
(4)
Support burner assembly (4) and remove
cotter pin (3). Place burner assembly on
clean workbench area.
(5)
Remove fuel nozzle circlip (10).
(6)
Pull disc (12) containing flame detector (11)
outwards. Disconnect electrical plugs
(13). Remove disc and detector from
nozzle holder.
(7)
Remove screw (8) to separate disc (12)
and detector (11). Discard detector; it
cannot be repaired.
(8)
Install new detector (11) on disc (12) using
original screw (8).
(9)
Push disc (12) onto nozzle holder (9) and
install circlip (10).
(10)
Plug detector wires (13) into electronic
control unit.
(11)
Aline burner assembly with heater base in
the truck. Replace cotter pin (3).
(12)
Swing burner assembly onto heater, and
swing eyebolts (5) into holder. Tighten
nuts.
(13)
Reconnect wiring harness to heater.
(14)
Reconnect fuel lines to heater.
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