TABLE OF CONTENS
ARC ELECTRIC WELDING SAFETY PRECAUTIONS .............................................................................................................................. i
SECTION 1 -- SAFETY SIGNAL WORDS ...............................................................................................................................................1
1 - 2 Symbol usage and definition ................................................................................................................................................
1
SECTION 2 SPECIFICATIONS ...........................................................................................................................................................2
2 - 1 Specifications ............................................................................................................................................................................
2
2 - 2 Fuel Consumption Curves .....................................................................................................................................................
2
2 - 3 AC Auxiliary Power ...................................................................................................................................................................
2
2 - 4 Volts - Amperes Curves ..........................................................................................................................................................
3
2 - 5 Duty Cylce ...................................................................................................................................................................................
3
SECTION 3 INSTALLATION ...............................................................................................................................................................4
3 - 1 Selection A Location & Moving W elding Source ...............................................................................................................
4
3 - 2 Overall Dimensions .................................................................................................................................................................
4
3 - 3 Exhaust Pipe ..............................................................................................................................................................................
4
3 - 4 Battery connections .................................................................................................................................................................
5
3 - 5 Engine Prestarts Checks .......................................................................................................................................................
5
3 - 6 Connecting To Ground The W elding Generator ...............................................................................................................
6
3 - 7 Connectin Output Terminals .................................................................................................................................................
6
3 - 8 Selecting & Preparing W eld Output Cables ......................................................................................................................
7
SECTION 4 OPERATION ...................................................................................................................................................................7
4 - 1 Controls ......................................................................................................................................................................................
7
4 - 2 Polarity Selector AC/DC ..........................................................................................................................................................
8
4 - 3 Coarse range selector ............................................................................................................................................................
8
4 - 4 Hourmeter ..................................................................................................................................................................................
8
4 - 5 Amperage/voltage fine control ..............................................................................................................................................
9
4 - 6 Engine Control ..........................................................................................................................................................................
9
4 - 7 Burnbank (Optional) ...............................................................................................................................................................
9
4 - 8 Mig welding outputs and settings controls ....................................................................................................................
1 0
4 - 9 Optional controls and indicators.......................................................... ...........................................................
11
SECTION 5 AUXILIARY POWER ................................................................................................................................................... 1 2
5 - 1 Receptacles ...........................................................................................................................................................................
1 2
5 - 2 W iring instructions for AC plugs ......................................................................................................................................
1 3
5 - 3 Electrical appliances used whit BRONCO 255 XD .....................................................................................................
1 3
SECTION 6 MAINTENANCE & TROUBLESHOOTINGS ............................................................................................................. 1 4
6 - 1 Routine Manitenance ..........................................................................................................................................................
1 4
6 - 2 Engine Maintenance ............................................................................................................................................................
1 5
6 - 3 Air Filter Maintenance ..........................................................................................................................................................
1 6
6 - 4 Oil Change, Oil Filter And Fuel Filter ..............................................................................................................................
1 6
6 - 5 Connecting or replacing the battery ...............................................................................................................................
1 7
6 - 6 Adjustment engine speed ..................................................................................................................................................
1 8
6 - 7 Excitation windings protection ..........................................................................................................................................
1 9
6 - 8 Engine electric system Protection ..................................................................................................................................
1 9
6 - 9 Troubleshootings ..................................................................................................................................................................
2 0
Table 6-1 W elding Trouble ...........................................................................................................................................................
2 0
Table 6-2 Auxiliary Power Trouble ..............................................................................................................................................
2 0
Table 6-3 Engine Trouble .............................................................................................................................................................
2 1
SECTION 7 ELECTRICAL DIAGRAM ............................................................................................................................................ 2 2
SECTION 8 AUXILIAR POWER GUIDE ....................................................................................................................................... 2 3
8 - 1 How Much Power Does Equipment Required .............................................................................................................. 2 3
8 - 2 How Much Power Does Supply The Generator ............................................................................................................ 2 3
SECTION 9 PARTS LIST ................................................................................................................................................................ 2 6
