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 TM 55-1925-204-12
(a) Remove the cover mounting screws
(d) Remove nuts from motor mounting then
from the rotary switch, then tag and disconnect the
lift motor from blower housing.
electrical leads from switch terminals. Remove switch
(e) Inspect motor armature and brushes for
mounting screws and lift the rotary switch from the urn.
wear or other defect. Replace worn brushes if motor is
(b) Tag and disconnect electrical leads
otherwise serviceable. Replace a defective motor.
from the immersion heater.
(f) Installation is in reverse order of removal in
(c) Remove mounting screws from heater
steps (a) through (d) above. Be sure fan is squarely on
mounting plate, then withdraw element from the coffee
shaft.
urn. Remove the gasket.
(5) Blower fan removal and installation.
(3) Cleaning, inspection, and repair.
(a) Remove motor ( (4) above).
(a) Keep exterior and interior of coffee urn
(b) Remove defective fan from blower
clean.
housing.
(b)
Inspect the rotary switch for free
(c) Insert new fan in the housing.
movement and good contacts. Test for continuity.
(d) Install motor and burner ( (4) above).
Replace a defective switch.
(6) Fuel oil metering control valve. Remove and
(c)
Inspect the immersion heater for
install a replacement fuel oil metering control valve as
corrosion, or burned through 'element.
Test for
follows:
continuity. Replace a defective immersion heater.
(a) Remove burner assembly ( (3) above).
(4) Reassembly. Assemble in reverse order of
(b) Remove fuel connection (5) and pipe
disassembly.
Install new gasket under element
from control valve (9).
mounting plate.
(c) Remove control valve (9) from blower
(5) Installation. Install by reversing the removal
housing.
procedure, (1) above.
(d) Install new control valve to blower
c. Refrigerator. The refrigerator is located
housing.
at, forward starboard side of the. galley. It is equipped
(e) Reinstall pipe and fuel connection (5) to
with a temperature and defrost control switch. The
the control valve. (fl Remove nut (10) and strainer
motor and compressor is located in a compartment
from control valve. Clean strainer, if necessary, then
below the refrigerator. Inspect and service as follows:
replace strainer and secure with nut (10).
(1) Cleaning and Inspection.
(g) Install burner assembly ((3) above). b.
(a) Clean the refrigerator evaporator lines
Coffee, Urn. The coffee urn is a stainless steel
after a frost buildup is noted, by turning control switch to
electrically operated urn, with a three element heating
"defrost". When the frost softens, wipe it away with a
unit controlled by a three position rotary switch to select
clean cloth. Scrape stubborn ice away, with a blunt
desired heat level. The heating element is replaceable.
edge, to avoid damage to lines or finish of the interior
(1) Removal.
surfaces.
(a) Disconnect electrical plug from power.
(b) Clean the compressor unit (fig. 5-116)
(b) Shutoff water control valve, drain the
with ships service air to remove dust and dirt from coils
urn, then disconnect water line from the coffee urn.
of the condenser; the compressor, motor, and their
(c) Lift urn from table and move to a
mounting platform.
Use a clean lint free cloth
suitable work area.
dampened in clean fuel oil to wipe residual grease and
(2) Disassembly.
dirt from the unit.
5-165
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