TM 5-4310-275-14
Section II. OPERATION OF AUXILIARY EQUIPMENT
the handle, press lever, and direct the powder at
2-4. General
the base of the flame using a side-to-side
The dry chemical type fire extinguisher is suitable
sweeping motion.
for use on all types of fire and is effective in areas
where ambient temperature is 25 `F. ( -- 4 "C. ) and
2-6. Maintenance
above. If winterized, the fire extinguisher may be
Refer to TB 5-4200-200-10,
used in temperatures below -- 25 "F. ( -- 37 "C. ).
2-5. Operation
Remove the fire extinguisher from its location, lift
Section III. OPERATION UNDER UNUSUAL CONDITIONS
2-9. Operation in Dusty or Sandy Areas
(18 C.)
covered when not in use. Use the canvas cover
a. Lubrication. Refer to LO 5-2805-257-14 for
supplied with the unit; take advantage of natural
engine lubrication. Lubricate compressor
barriers where possible or erect a shelter.
assembly in accordance with Lubrication Chart
b. Lubrication.
(1) Refer to LO 5-2805-257-14 for engine
b. Fuel System.
lubrication. Lubricate compressor and trailer in
(1) Keep the fuel tank full at all times to
accordance with Lubrication Chart (fig. 3-1).
prevent condensation.
(2) Clean all lubrication points before ap-
(2) Remove all ice crystals from the fuel tank
plying lubricants. Wipe spilled lubricants from
strainer immediately before filling the fuel tank,
the unit to avoid collecting dust and sand. Clean
(3) After starting, allow the engine to attain
the area around the oil fill cap and level gage
normal operating temperature before operating
before checking or adding lubricants.
the compressor at pressures above 500 psig
(3) Clean the cooling fins so they are free of
(35.1500 kg per sq cm).
any spilled lubricants to prevent collection of dirt.
(4) Maintain the fuel tank cap free from ice,
(4) Clean the crankcase oil fill and breather
snow, and moisture.
cap frequently.
c. Electrical System.
c. Fuel Systems.
(1) Apply 27.0 volts direct current to the
(1) Use care when adding fuel to prevent
moisture separator receptacle (fig. 2-1 ).
sand and dirt from entering the fuel system. Keep
(2) Do not disturb the electrical leads in
the fuel tank cap tight at all times.
extreme cold unless repair is required.
(2) Store fuel in clean, dry containers and
protect them from sand and dust.
a. Lubrication. Refer to LO 5-2805-257-14 for
(3) Service the air cleaner and fuel filter daily
engine lubrication. Lubricate compressor
(refer to engine manual, TM 5-2805-257-14).
assembly in accordance with Lubrication Chart
(4) Wipe down the unit frequently to prevent
accumulation of sand and dust.
b. Fuel System.
d. Electrical System.
(1) Do not overfill the fuel tank; allow room
(1) Wipe wiring and magneto with clean, dry
for expansion of fuel.
cloth.
(2) Make sure the fuel tank cap is on tight
(2) Check all gages for loose or broken lenses
and that the cap vent is open.
which might permit entry of dust and sand.
c. Engine Cooling Fins and Air Shrouds.
Repair or tape the lenses to prevent entry of
(1) Check the air shrouds for loss or damage
foreign matter.
that would prevent circulation of cooling air.
e. Engine Cooling Fins and Air Shrouds. Clean
(2) Check the cooling fins on the cylinders
the engine cooling fins frequently to prevent
frequently to make sure they are clean and not
accumulation of dust and sand.
damaged.
