Miller Big Blue 700 Duo Pro DLX SF Owner's Manual page 67

C. Three-Phase Generator Power
Trouble
No or low output at three-phase gener-
ator/receptacle RC5.
High output at three-phase generator/
receptacle RC5.
Erratic output at three-phase generator/
receptacle RC5.
D. Engine
Trouble
Engine will not crank.
Engine cranks but does not start.
Engine starts, but stops when Engine
Control switch is released.
Engine hard to start in cold weather.
Engine suddenly stops.
Engine slowly stopped and cannot be
restarted.
Battery discharges between uses.
Engine idles, but does not come up to
weld speed.
.
Complete Parts List available at www.MillerWelds.com
Reset supplementary protector CB1 (see Section 8-8).
Check engine weld/power speed, and adjust if necessary (see Section 8-6).
Have Factory Authorized Service Agent check brushes and slip rings.
Check engine weld/power speed, and adjust if necessary (see Section 8-6).
Have Factory Authorized Service Agent check brushes and slip rings.
Supplementary protector CB2 open. Reset CB2.
Check battery connections and tighten if necessary. Check battery, and replace if necessary.
Circuit breaker CB10 may be open. CB10 automatically resets when fault is corrected (see Section 8-8).
Have Factory Authorized Service Agent check engine wiring harness and components.
Check engine wiring harness plug connections.
Have Factory Authorized Service Agent check fuel/hour gauge, control relay CR5 and Engine Control
switch S1.
Check fuel level.
Check battery and replace if necessary. Check engine charging system according to engine manual.
Have Factory Authorized Service Agent check fuel/hour gauge, control relay CR5, fuel pump, and fuel
solenoid FS1.
Air in fuel system. See engine manual.
Check oil level. Automatic shutdown system stops engine if oil pressure is too low or engine temperature
is too high (see Section 5-5). Automatic shutdown system is inhibited for 30 seconds after start-up.
Have Factory Authorized Service Agent check fuel/hour gauge, and control relay CR5.
Use starting aid switch (see Section 6-2).
Keep battery in good condition. Store battery in warm area off cold surface.
Use fuel formulated for cold weather (diesel fuel can gel in cold weather). Contact local fuel supplier for
fuel information.
Use correct grade oil for cold weather (see engine manual).
Check oil level. Automatic shutdown system stops engine if oil pressure is too low or engine temperature
is too high (see Section 5-5). Automatic shutdown system is bypassed for 30 seconds after start-up.
See engine manual.
Check fuel level.
Check engine air and fuel filters (see Sections 8-5 and 8-7).
See engine manual.
Turn Engine Control switch off when unit is not running.
Clean top of battery with baking soda and water solution; rinse with clear water.
Recharge or replace battery if necessary.
Periodically recharge battery (approximately every 3 months).
Have Factory Authorized Service Agent check current transformer CT1 and main control board PC1.
Check for obstructed throttle solenoid.
Remedy
Remedy
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