Hobart Pipeliner Instructions Manual page 23

PART TWO - INSTRUCTIONS
T-964C
c. FUEL - Correct fuel storage and handling will do a great deal to eliminate
cold weather fuel problems. Keep fuel storage drums as full as possible to avoid
condensation of moisture from the air above the fuel. After filling or moving fuel
containers allow fuel to settle before using. Never draw fuel from the extreme bot­
tom of the container. Strain all fuel to remove WATER and other foreign matter.
When operating outdoors, take steps to prevent the entry of snow, water, and ice
into the fuel containers. Add a pint of de-natured alcohol to fuel tanks each time
they are re-filled. The alcohol mixes with the water, preventing freezing and al­
lowing the alcohol-water mixture to burn through the engine, keeping the fuel system
free of water.
d. COOLING SYSTEM - On liquid cooled engines, the cooling system should be
drained, and flushed to remove accumulations of rust and sediment. Mix and add
anti-freeze solution for the lowest temperatures expected. After adding the anti­
freeze solution, check the cooling system connections for leaks.
e. RADIATOR - In extremely cold weather it is often wise to reduce the exposed
area of the radiator by covering the lower portion with canvas or some other mater­
ial. The area covered can be varied according to the temperature. If the water
temperature can be kept between 160° and 180°F., the engine will operate practially
as efficiently as in warm weather.
f. LUBRICATION - The engine crankcase should be drained while the engine is warm
and refilled with a lighter grade of oil. Follow the recommendation given in the
lubrication section. In cold weather drain oil more frequently. Water condenses •
and collects quickly mixes with the oil, and increases carbon deposits to form a
sludge. Check oil frequently for sludge and water. Water in the crankcase may
freeze and shut off the oil supply, or do serious damage to the oil pump.
g. ELECTRICAL SYSTEM - The complete electrical system should be checked for
loose connections. The spark plugs, and the distributor or magneto, on machines
having these components, should be cleaned and the gaps re-set. For proper gaps,
consult the Engine Instruction Manual.
h. BATTERY - Battery efficiency decreases sharply with decreases in temperature.
Maintain the specific gravity of the battery between 1.275 and 1.300. Make certain
the battery is fully charged before attempting sub-zero starting. If necessary, use
an auxiliary battery for starting.
19. OPERATION IN EXTREMELY DUSTY CONDITIONS
a. GENERAL - Operation of welding units in extremely dusty conditions also re­
quires some special precautions and extra servicing by operation and maintenance
personnel. If the following suggestions are carefully observed, more satisfactory
operation under dusty conditions will be obtained.
b. LOCATION - If the unit is to be operated under dusty, out-of-doors condi­
tions, place the unit in a sheltered area. Take advantage of any natural barriers
which may offer protection from blowing dust. If the installation is more than
temporary, erect a protective shield. On models equipped with canopy doors, the
canopy on the right side of the machine - side away from the generator ventilator
outlet - may be lowered and the machine turned so that this side faces the wind.
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