trol to maintain proper engine operating tem-
e. Connect hose from manifold heater to air
perature.
filter intake.
h. Begin usual welding operations.
f. Start coolant heater in accordance with
a. When the installation is permanent, erect
a protective cover for it. When a temporary
installation is made, take advantage of natural
i. Close side doors and adjust shutter control
barriers whenever possible. All side doors, other
than control panel door, should be closed when-
to maintain proper engine operating tempera-
ever possible during operation. Keep the unit
ture.
as clean as possible, paying special attention
to the engine radiator.
216. Stopping Engine in Extreme Cold
b. In dusty or sandy areas the lubricating
filter and air cleaner must be cleaned more
(Model LEW 300 only).
f r e q u e n t l y than under normal conditions.
2-13.
Clean all lubricating points before and after
lubrication. Be sure that all lubricant contain-
ers are tightly sealed and stored in an area
as free as possible from dust and sand.
Freezing Points
Freezing
Speceific gravity
points (O F.)
Battery condition at 80 F.
graph 2-12.
1.280 - - - - Fully charged - - - - - - - - - - - - - - - -90
d. Close side doors and adjust shutter con-
1.250 - - - - - 75% charged - - - - - - - - - - - - - - - - - - 62
trol to maintain proper engine operating tem-
1.200 - - - - - 50% charged - - - - - - - - - - - - - - - -16
1.190 - - - - - 25% charged - - - - - - - - - - - - - - - - -10
perature.
1.150 - - - - - Almost totally discharged - - - +5
e. Begin usual welding operations.
1.100 - - - - - Totally discharged - - - - - - - - - - - +19
a. Keep cooling system free of rust and
Conditions
a. When the welding machine is operated
scale. If necessary add an approved rust in-
outside, erect a shelter to protect the unit
hibitor. Clean and flush the cooling system at
when possible. If the erection of a shelter is
frequent intervals. Do not use salt water in
not practical, keep the machine covered with
cooling system except in extreme emergencies.
a canvas. Remove the covering during dry
Make sure the engine thermostat is working
periods, open all doors and allow the unit to
properly. Inspect the V-belts for proper ad-
dry. Keep the fuel tank as full as possible to
justments.
prevent the forming of condensation.
b. Lubricate the engine in accordance with
the current lubrication order.
c. Do not fill the fuel tank to the top; allow
graph 2-12.
sufficient room for expansion of the fuel.
c. Close side doors and adjust shutter, con-
d. Inspect the electrolyte level of the bat-
trol to maintain proper engine operating tem-
teries daily. The electrolyte level should be
perature.
three-eights inch above the plates. Add water
d. Begin usual welding operations.
as necessary.
e. Make sure the welding machine is free
of airflow restrictions. When operating in-
u. Salt water causes corrosive action on
doors, make provisions for adequate ventila-
metal. Care must be taken to avoid contact of
tion and the venting of exhaust fumes to the
equipment with salt water. If contact is made,
outside.
or if the unit is exposed to salt spray, wash
the unit with clean, fresh water.
graph 212.
Caution: The cooling system is not de-
g. Close side doors and adjust shutter con-
AGO 20030A
