Routine Maintenance - Miller Big Blue Duo Pro 700 X Owner's Manual

This flowchart is intended as a general guide only. Al-
ways read and follow the safety information and specific
instructions given elsewhere in this Technical Manual.
8-2.

Routine Maintenance

Stop engine before maintaining.
�
See Engine Manual and Maintenance Label for important start-up, service, and storage information. Service engine more often if used in
severe conditions.
�
Recycle engine fluids.
� = Check
engine checks before contacting the engine manufacturer.
Every
FUEL
8
WATER
Hours
Complete Parts List is available at www.MillerWelds.com
To check oil level, see Section __.
Trouble: Oil level is too low. Symptom: Oil pressure switch will
not close. The engine will begin to start and then stop.
Complete Parts List is available at www.MillerWelds.com
Trouble: Oil level is too high. Symptom: The pressure line that
operates the fuel pump can be plugged. Not enough fuel will be
� Primary Fuel Filter
Complete Parts List available at www.MillerWelds.com
delivered, and the engine will not run or will run poorly.
Every
FUEL
100
WATER
Hours
To check fuel level, see Section __.
Trouble: Fuel level is too low. Symptom: The fuel pump will
have no fuel to feed the engine, and the engine will not start or
Weld Terminals
� Battery Terminals
stay running.
Every
Trouble: Fuel level is too high. Symptom: Fuel will plug the fuel
250
vent and flood the engine. The engine will not start or will run
Hours
poorly and have black smoke in the exhaust.
� Unreadable Labels
To check and replace fuel filters, see Section __.
Every
Trouble: Dirty fuel filters. Symptom: Fuel flow to the engine is
1000
restricted. Engine will not run or run well if it is starved for fuel.
Hours
NOTICE EFI engines have two fuel filters. Use the correct filters to
prevent damage to the EFI fuel pump and injectors. See Section __.
◇ Oil And Oil Filter
To check and replace air filters, see Section __.
Trouble: Dirty air filters. Symptom: Air flow to the engine
is restricted. Engine will start hard, not run, or have black
smoke in the exhaust if it is not getting enough air.
� Slip Rings*
� �Brushes*
Every
3000
Hours
To check and replace spark plugs, see Section __.
Trouble: Severely worn spark plugs. Symptom: Spark
plugs will not ignite the air and fuel mixture. Engine will start
� Injectors*
hard and run very rough.
If spark plugs are black, dry, or wet, there is a problem with
*To be done by factory authorized service agent.
fuel or air delivery. See previous steps.
DEUTZ Service: http://www.deutzamericas.com
To ensure rapid, efficient service support, you should initially contact your nearest DEUTZ service distributor or dealer. They are staffed with
highly qualified parts, service and engine specialists to handle your different needs.
To check battery voltage, see Section __.
The DEUTZ Service Desk enhances this support and can be contacted by completing and submitting the Service Support Form. Customers in
Trouble: Battery voltage is too low. Symptom: Control
the US and CANADA can also contact the service desk by calling our toll free number, 1-800-241-9886.
boards and the EFI ECU require 12 volts DC to operate.
Low voltage from a defective battery or charging circuit can
Our normal hours of operation are from 8:00 AM to 6:00 PM Monday through Friday EST. You may contact our on call service 24 hours, 7 days a
cause improper or erratic engine speed and weld output.
week. We ask that when you contact us, please have available or provide specific engine information (serial number, model number etc.) as
shown on the Service Support Form.
To perform the ECU Reset and TPS Learn procedures, see Section __.
In EFI systems, the ECU learns the air and fuel mixture that it needs to
regulate. When something that affects the air and fuel mixture changes
(such as fuel filters, air filters, or spark plugs), the ECU and TPS reset
This flowchart is intended as a general guide only. Al-
ways read and follow the safety information and specific
instructions given elsewhere in this Technical Manual.
◇ = Change
Complete Parts List is available at www.MillerWelds.com
Complete Parts List is available at www.MillerWelds.com
� Fuel Level
Complete Parts List is available at www.MillerWelds.com
� Air Cleaner Hoses
1/2 in.
(13 mm)
� Fan Belt Tension
1/2 in.
(13 mm)
NOTICE – Change engine
oil and filter after initial 50
to 75 hours of use.
See engine manual for oil
specifications.
� Inside Unit
Gasengine_2018-11
OM-249336 Page 1
OM-249336 Page 1
� = Clean
Complete Parts List is available at www.MillerWelds.com
� Oil Level
Air Cleaner Element
� Air Cleaner Element
1/2 in.
1/2 in.
(13 mm)
(13 mm)
� Cooling System
◇ Fuel Filters
1/2 in.
(13 mm)
� Valve Clearance*
Every 6000 Hours or 5 Every
6000 Years
Hours
or 5
Years
255858
� = Replace
Engine
Manual,
Section 5-5
Clean unit exterior, includ-
ing stainless steel, fre-
quently to prevent rust and
corrosion.
� Oil, Fuel Spills
Section 8-5
� Weld Terminals
Engine
Manual
� � Spark Arrestor
1/2 in.
(13 mm)
Section 8-3,
8-7, and En-
gine Manual
� Weld Cables
� Drain Sludge
� � Engine Timing Belt
1
255858
1
OM-282302 Page 55
Reference