Connecting The Battery; Engine General Information - Miller Big Blue 450 Duo CST Owner's Manual

5-4.

Connecting The Battery

1-2. Connecting The Battery
1/2 in.
1-3. Engine Fuel And Coolant Prestart Information
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wrench
crescent wrench
Shown with door open and rocker pan-
el removed.
NOTICE – Lead acid batteries discharge
when stored in any temperature. Units that
are stored should have the battery re-
charged every three months and before
being put into service. To preserve optimum
battery performance and life, recharge bat-
tery in storage when the open-circuit voltage
drops to 12.4 volts DC when measured
nutdriver
across the battery terminals.
chippinghammer
Connect negative (-) cable last.
5-5.

Engine General Information

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1
Check all engine fluids daily.
wirecutter frontcutter
Engine must be cold and on a level surface.
Automatic Shutdown System
Automatic shutdown system stops engine if
oil pressure is too low or coolant tempera-
ture is too high.
�
This unit has a low oil pressure shut-
down switch. However, some condi-
tions may cause engine damage
before the engine shuts down. Check
oil level often and do not use the oil
pressure shutdown system to monitor
oil level.
filterwrench
file paintbrush
OM-266621 Page 26
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Complete Parts List is available at www.MillerWelds.com
Complete Parts List is available at www.MillerWelds.com
+
NOTICE – Wait two minutes after engine
shutdown before disconnecting battery or
engine controller may be damaged.
Battery is accessed through the side door.
Connect battery, negative cable last. Close
side door.
� Do not allow the battery cables to touch
opposing terminals. When connecting
the battery cables attach the positive
(+) cable to the positive (+) battery ter-
minal first, followed by negative (-) ca-
ble to negative (-) battery terminal.
2
Run-In
Follow run-in procedure in engine manual. If
unburned fuel and oil collect in exhaust pipe
during run-in, see Section 11.
NOTICE – Diesel engines in Miller equip-
ment are meant to operate optimally at mod-
erate to rated load. Light or no load may
cause wetstacking or engine damage.
Cold Weather
� Never start the engine when the cables
are loose or poorly connected to the
battery terminals.
� Never disconnect the battery while the
engine is running.
� Never use a quick battery charger to
start the engine.
� Do not charge battery with Engine Con-
trol switch On.
� Always disconnect the negative (-) bat-
tery cable before charging battery.
3
�
To improve cold weather starting:
Use Preheat switch (see Section 6-1).
Keep battery in good condition. Store
battery in warm area.
4
Use fuel formulated for cold weather
(diesel fuel can gel in cold weather).
Contact local fuel supplier for fuel
5
information.
Use correct grade oil for cold weather
6
(see Section 8-1).
Use engine block heater if applicable
(see Section 6-2)
2
Ref: 907 427 6 2