Figures 13-2 | Miller Electric Big Blue 500 X, Big Blue 400P

	Item	Dia.	Part	Description	Quantity
	No.	Mkgs.	No.	Description	Quantity
			Figure 13-1. Main Assembly (Continued)

. . . 77 . . .		. . . . . . .	. . . 191 626 . .	BUMPER, door engine access	. . . 4
. . . 78 . . .		. . . . . . .	. . . 199 592 . .	LATCH, paddle series 20 (black)	. . . 1
. . . 79 . . .		. . . . . . .	. . . 220 539 . .	LABEL, diesel engine maintenance	. . . 1
. . . 80 . . .		. . . . . . .	. . +200 989 . .	DOOR, engine access	. . . 1
. . . 81 . . .		. . . . . . .	. ♦+210 736 . .	DOOR, engine access ss	. . . 1
. . . 81 . . .		. . . . . . .	. . . . . . . . . . . . . .	Not Applicable for Perkins powered machines
. . . 82 . . .		. . . . . . .	. . . 189 975 . .	HINGE, door access 180deg	. . . 2
. .	. . . . . . .	. . . . . . .	. ♦+199 301 . .	PANEL, engine side ss	. . . 1
. . . 83 . . .		. . . . . . .	. . . 190 190 . .	TANK, coolant recovery	. . . 1
. . . 84 . . .		. . . . . . .	. . . 189 826 . .	PANEL, rocker	. . . 1
. . . 85 . . .		. . . . . . .	. . ♦199 298 . .	PANEL, rocker ss	. . . 1
. . . 85 . . .		. . . . . . .	. . . 208 141 . .	STOP, door	. . . 1
. . . 86 . . .		. . . . . . .	. . . 189 827 . .	PANEL, gen RH	. . . 1
. . . 87 . . .		. . . . . . .	. . ♦199 300 . .	PANEL, gen RH ss	. . . 1
. . . 87 . . .		. . . . . . .	. . . *197 997 . .	FILTER, fuel secondary	. . . 1
. . . 88 . . .		. . . . . . .	. . . 173 909 . .	HOSE, sae .312 id x .560 od (order by ft)	. . . 1
. . . 89 . . .		. . . . . . .	. . . . . . . . . . . . . .	PUMP, fuel (available through engine manufacturer)	. . . 1
. . . 90 . . .		. . . . . . .	. . . 218 222 . .	BRACKET, mtg fuel filter/pump	. . . 1
. . . 91 . . .		. . . . . . .	. . ♦230 636 . .	IDLE SOLENOID ASSEMBLY (consisting of)	. . . 1
. .	. . . . . . .	. . . . . . .	. . . 230 634 . . .	. SOLENOID, throttle w/4−8.4 lb spring	. . . 1
. .	. . . . . . .	. . . . . . .	. . . 230 829 . . .	. BRACKET, mtg solenoid	. . . 1
. .	. . . . . . .	. . . . . . .	. . . 198 018 . . .	. LINKAGE, throttle solenoid	. . . 1
. .	. . . . . . .	. . . . . . .	. . . 230 830 . . .	. ARM, Throttle	. . . 1
. .	. . . . . . .	. . . . . . .	. . . 198 109 . . .	. SCREW, shld stl sch .250−20 x .437 x .500 shld	. . . 1
. . . 92 . . .		. . . . . . .	. . . 225 120 . .	LABEL, warning moving parts can cause injury	. . . 2
. . . 93 . . .		. . . . . . .	. Figure13-6 . .	GENERATOR	. . . 1
. . . 94 . . .		. . . . . . .	. . . 218 087 . .	TANK, fuel (consisting of)	. . . 1
. . . 95 . . .		. . . . . . .	. . . 189 909 . . .	. FITTING, stand pipe hose .250 x 9.260 lg 90deg zinc	. . . 1
. . . 96 . . .		. . . . . . .	. . . 095 636 . . .	. HOSE, sae .187 id x .410 od x 30.000 (order by ft)	. . . 1
. . . 97 . . .		. . . . . . .	. . . 201 025 . . .	. CAP, fuel fitting	. . . 1
. . . 98 . . .		. . . . . . .	. . . 189 913 . . .	. FITTING, stl barbed elbow zinc pld	. . . 1
. . . 99 . . .		. . . . . . .	. . . 190 142 . . .	. SENDER, fuel gauge 9.7500 deep tank	. . . 1
. . 100 . .		. . . . . . .	. . . 189 910 . . .	. FITTING, stand pipe hose .3125 x 9.260 lg 90deg zinc	. . . 1
. . 101 . .		. . . . . . .	. . . 181 572 . . .	. BUSHING, tank fuel	. . . 1
. . 102 . .		. . . . . . .	. . . 189 908 . . .	. VALVE, drain fuel 180deg	. . . 1
. . 103 . .		. . . . . . .	. . . 191 446 . . .	. EXTRUSION, rubber w/adhesive 1.000 x 1.000 D (order by ft) . . . .	. . . 6ft
. . 104 . .		. . . . . . .	. . . 124 253 . . .	. BUSHING, tank fuel	. . . 4
. .	. . . . . . .	. . . . . . .	. . . 084 173 . . .	. CLAMP, hose .460 − .545clp dia slfttng	. . . 2
. .	105 . .	. . . . . . .	. . . 189 912 . . .	. FITTING, stl barbed elbow w/.047 in orf zinc pld	. . . 1
. . 106 . .		. . . . . . .	. . . 224 266 . .	LABEL, warning do not weld on base	. . . 2
. . 107 . .		. . . . . . .	. . . 191 897 . .	BRACKET, mtg unit	. . . 4
. . 108 . .		. . . . . . .	. . . 192 362 . .	BRACKET, mtg nyl 1/2 conduit	. . . 1
. . 109 . .		. . . . . . .	. . . 196 220 . .	BRACKET, hold down fuel tank rear	. . . 1
. . 110 . .		. . . . . . .	. . +200 999 . .	BASE	. . . 1
. . 110 . .		. . . . . . .	. ♦+203 382 . .	BASE e−coat	. . . 1
. .	111 . .	. . . . . . .	. . . 218 086 . .	BRACKET, hold down fuel tank	. . . 1
. .	112 . .	. . . . . . .	. . . 173 352 . .	EXTRUSION, rubber clamp/bulb (order by ft)	. . . 3ft
. . 113 . .		. . . . . . .	. . . 189 731 . .	FIREWALL, lower	. . . 1
. . 114 . . . . . Figures 13-2, 13-3				CONTROL BOX ASSEMBLY	. . . 1
. . 115 . . . . R3 .			. . . 189 699 . .	RESISTOR, WW tap 375W 10 ohm w/mtg bkt	. . . 1
. . 116 . . . . R2 .			. . CC189 699 . .	RESISTOR, WW tap 375W 10 ohm w/mtg bkt	. . . 1
. . 117 . .		. . . . . . .	Figure 13-7 . .	MAIN RECTIFIER ASSEMBLY	. . . 1
. . 118 . . . PC1			. . CV189 143 . .	MODULE, field current regulator	. . . 1
. . 119 . .		. . . . . . .	. . CV193 453 . .	BRACKET, mtg box fcr	. . . 1
. .	120 . .	. . . . . . .	. . . 191 448 . .	TOP, cover front upright	. . . 1

OM-4421 Page 68

Big Blue 500 X, Big Blue 400P specifications

Miller Electric has long been a trusted name in the welding industry, and their generators, particularly the Big Blue 400P and Big Blue 500 X, stand out for their performance, reliability, and innovative technologies. These portable diesel welding generators cater to a wide range of applications, from construction sites to industrial fabrication.

The Big Blue 400P is designed for heavy-duty utilization, offering a powerful output of 400 amps at a duty cycle of 60%. It features a dependable Kohler engine that not only provides ample power but also contributes to its efficient fuel consumption, making it an economical choice for extended work sessions. The Big Blue 400P comes equipped with Auto-Stop technology, which automatically turns off the machine when not in use, conserving fuel and extending engine life. This feature showcases Miller's commitment to user-friendly designs that enhance both efficiency and sustainability.

On the other hand, the Big Blue 500 X takes performance up a notch with an impressive 500 amps output and a 60% duty cycle. It is powered by a high-efficiency Yanmar engine that ensures top-notch performance even in the most demanding conditions. This generator is equipped with Miller's X-CASE design, which features a rugged weather-resistant enclosure that protects internal components from harsh environmental conditions, ensuring durability and extended lifespan.

Both machines integrate advanced technologies such as Smart Tech, which optimizes the generator's output based on the specific demands of the welding process. This technology helps maintain a stable arc, enhancing welding quality and consistency. Additionally, both models feature the Auto Remote Start, allowing for quick operations without manual intervention, further advancing ease of use.

The versatility of the Big Blue 400P and 500 X is evident in their ability to perform a variety of welding processes, including Stick, MIG, and TIG. They are equipped with multiple outputs, allowing simultaneous powering of tools and auxiliary equipment, making them indispensable for professionals who need adaptability on the job.

Overall, the Miller Electric Big Blue 400P and 500 X embody the quality, performance, and innovative technologies that Miller Electric is known for. Their robust capabilities, coupled with user-friendly features, make these generators ideal for demanding applications in various industries, ensuring that welders can achieve excellent results, no matter the challenges faced on site.

Miller Electric Big Blue 500 X, Big Blue 400P manual Figures 13-2

Models: Big Blue 500 X Big Blue 400P

Figure 13-1. Main Assembly (Continued)

. . 114 . . . . . Figures 13-2, 13-3

OM-4421 Page 68

Big Blue 500 X, Big Blue 400P specifications