TEST OR INSPECTION
If fuel pump drive belt is not loose, proceed to step 3.
Check for loose fuel pump assembly and fittings.
If either assembly or fittings are loose, tighten.
If assembly is tight, proceed to step 4.
Check for clogged or contaminated fluid filter.
If fluid filter is clogged, drain contaminants from filter fuel bowl
(refer to page 3-21).
Inspect fluid filter for clogging. If filter is clogged, notify organi-
If fluid filter is clean, proceed to step 5.
Check fuel lines for loose connections.
If connections are loose, tighten connections.
If fuel line connections are tight, notify organizational maintenance.
Check for vapor lock.
If vapor lock condition is suspected, cool burner fuel can by cover-
ing with a wet towel.
If outside air temperature is above 100°F, use diesel as alternate
FLUCTUATING HEATER FUEL PRESSURE.
Check for a low fuel supply.
If fuel supply is low, add more fuel.
If fuel supply is not low, proceed to step 2.
Observe temperature of heater fuel container.
If container feels warm to the touch, (approximately 80°F (28°C) or
hotter), switch to alternate fuel specified
If temperature of heater fuel container is
(diesel, jet fuel, or ker-
correct, proceed to step 3.