TM 3-4230-209-10
Item
Location, Item to
Not Fully Mission
No.
Interval
Check/Service
Procedure
Capable If:
Water Heater
(Cont)
37
BEFORE
Control Box
a. Inspect control box for
and
Assembly
broken, missing, or loose
QUARTERLY
parts. Tighten as necessary.
BEFORE,
b. Inspect to see that the glass
AFTER and
in the fuel, water, and
QUARTERLY
temperature gages is not
broken.
BEFORE
c. Check that controls and
instruments are in good
condition. Set heater control
switch to PURGE ON.
DURING
See that gages work and are
reading correctly:
WATER PRESSURE
WATER
Gage: 60-120 psi.
PRESSURE
gage is not
working.
FUEL PRESSURE Gage:
FUEL
at startup only, 60-75
PRESSURE
psi, depending on fuel
gage not
type. During operation
working.
may be lower or
higher.
WATER TEMPERATURE
WATER
Gage: 40F - 190F.
TEMPERA-
TURE gage not
working.
QUARTERLY
d. Wash front panel and gage
faces with hot, soapy water.
Rinse with clear water.
Remove rust and corrosion
with a wire brush (item 5,
app D). Repaint as
necessary (item 21, app D).
Change 2 2-51
