TM 10-4500-200-13
.
Figure 5-7. Burner.
Section X. TROUBLESHOOTING
5-24. General
occur are listed in table 5-2. Each malfunction stated
This section provides information useful in diagnos-
is followed by a list of probable causes of the trouble.
The corrective action recommended is described op-
ing and correcting unsatisfactory operation or failure
of the immersion heater. Malfunctions which may
posite the probable cause.
Table 5-2. Troubleshooting
Probable cause
Corrective action
Malfunction
1. Heater fails to start.
a. Insufficient preheating of flue.
Repeat preheating. Leave lighter in flue
compartment until heater starts
b. Vent plug closed.
Open vent plug (para 5-11).
c. Fuel tank empty.
Remove and filf tank (para 5-1).
d. Water present in combustion
Clear water from combustion chamber
chamber.
2. Burner goes out
a. Fuel tank empty.
Remove and fill tank (para 5-1).
b. Vent plug closed or clogged.
Open vent plug and be sure it is free
from obstruction (para 5-11).
c. Water present in combustion
Clear water from combustion chamber
chamber.
d. Fuel rate too slow.
Open fuel valve (para 5-11).
e. Flame blown out.
Shield heater from wind (para 5-1 3).
3. Heater smokes
a. Fuel rate too fast.
Close fuel valve slightly (para 5-11).
b. Stack is too short.
Be sure to use at least four sections
of pipe (para 5-6).
Section
XI.
ORGANIZATIONAL
MAINTENANCE
PROCEDURES
gate (17) on the heater body, and secure it with the
5-25. Draft Gate
draft gate supporting screw (16) and the draft gate
screw nut (18).
draft gate supporting screw (16), the draft gate
5-26. Hood
screw nut (18), and the draft gate (17) from the heat-
er body.
a. Removal.
(1) Refer to figure 5-6 and remove the cotter pin
b. Inspection. Inspect the draft gate for a warped
(13) from the hinge pin (11).
and distorted condition. Replace the draft gate as
required.
(2) Remove the hinge pin (11), and lift off the
hood (12) from the burner collar (19).
