Miller Big Blue 400 Pro Welding Machine

What fuel type does the Big Blue 400 Pro require?

The Big Blue 400 Pro requires diesel fuel only. A warning label (part number 227728) is affixed to the unit specifically stating 'Use Diesel Fuel Only.' Using any other fuel type is not sanctioned by the manufacturer.

What battery specifications does the Big Blue 400 Pro use?

The Big Blue 400 Pro uses a 12V battery with 570 cold cranking amps, 100 reserve capacity, Group 35 designation. The battery is connected via a positive cable (45 inches, No. 1 AWG) and a negative cable (42 inches, No. 1 AWG).

What type of ignition switch does the Big Blue 400 Pro have?

The Big Blue 400 Pro is equipped with a 4-position ignition switch (part number 217680) with a lever handle. It is located on the front panel with components assembly.

Does the Big Blue 400 Pro support wireless remote start?

Yes, the Big Blue 400 Pro supports an optional Wireless Interface Control (WIC) system. The wireless kit (part number 286598) includes a radio receiver module, antenna, FOB, wiring harness, and a piezo alarm. A warning label for remote start (part number 286634) is also included.

What auxiliary power receptacles are available on the Big Blue 400 Pro?

The auxiliary power panel includes a 50A 125/250V flush-mount receptacle (NEMA 14-50) and two GFCI 15/20A receptacles. The panel also includes a 2-pole 50A supplementary protector (CB5) and two 1-pole 20A supplementary protectors (CB4, CB6) for circuit protection.

What are the recommended spare parts I should keep on hand for the Big Blue 400 Pro?

Recommended spare parts vary by engine type but include oil filters, fuel filters, and alternator belts for all engine variants. For Kubota models, the air cleaner element (part 197676) and a complete filter kit (part 253901) are also recommended. Mitsubishi and CAT models have their own respective filter kits (252782 and 274427).