Miller Bobcat 200 Air Pak Diesel Owner's Manual page 68

Trouble
High weld output.
Erratic weld output.
E. Engine Troubleshooting
Trouble
Engine will not crank.
Engine will not start.
Engine starts but stops when Engine
Control switch returns to Run position.
Engine stopped during normal
operation.
Battery discharges between uses.
Engine idles but does not come up to
weld speed.
Unstable or sluggish engine speeds.
OM-281710 Page 64
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A complete Parts List is available at www.MillerWelds.com
Be sure Charge/Weld switch is in weld position.
Check weld cable size and length.
Access service menu to view engine speed (see Section 6-4).
Service engine air cleaner (see Section 11-4). Service engine fuel filter (see Section 11-5).
Have Factory Authorized Service Agent check PC1 and weld/battery charge inverter.
Check Weld Output control setting.
Check Weld Output control setting.
Tighten and clean connections to electrode and workpiece.
Use dry, properly stored electrodes for Stick welding.
Remove excessive coils from weld cables.
Clean and tighten connections both inside and outside welder/generator.
Access service menu to view engine speed (see Section 6-4).
Service engine air cleaner (see Section 11-4). Service engine fuel filter (see Section 11-5).
"INTRLOCK" displayed. Connect 12V signal to interlock input.
Check engine fuses and replace if open (see Section 11-7).
Check battery voltage.
Check battery connections and tighten if necessary.
Check plug PLG8 (ignition switch).
Have Factory Authorized Service Agent check Engine Control switch S1.
Check fuel level.
Check battery voltage.
Check battery connections and tighten if necessary.
Check oil level (see Section 5-4).
Have Factory Authorized Service Agent check low oil pressure shutdown switch.
Check oil level.
Check and refill crankcase with proper viscosity oil for operating temperature, if necessary.
Check low oil pressure shutdown switch.
Check fuel level.
Replace fuel filter(s) (see Section 11-5).
Check oil level (see Section 5-4).
Check low oil pressure shutdown switch.
Periodically recharge battery (approximately every 3 months).
Replace battery.
Check alternator and connections according to engine manual.
Have Factory Authorized Service Agent check engine.
Clean battery, terminals, and posts with baking soda and water solution; rinse with clear water.
Check voltage regulator and connections according to engine manual.
Periodically recharge battery (approximately every 3 months).
Replace battery.
Have Factory Authorized Service Agent check current transformer CT1.
Check oil level. Oil level should not exceed Full mark on dipstick.
Tune-up engine according to engine manual.
Remedy
Remedy