Generator Power Troubleshooting; Engine Troubleshooting - Miller TRAILBLAZER 302 AIR PAK Owner's Manual

Trouble
Tungsten electrode oxidizing and not
remaining bright after conclusion of
weld.

11-3. Generator Power Troubleshooting

Trouble
No power output.
Low power output.
High power output.
Erratic power output.

11-4. Engine Troubleshooting

Trouble
Engine will not crank.
Engine does not start.
Engine starts but stops when Engine
Control switch returns to Auto Speed
position.
Shield weld zone from drafts.
Increase postflow time.
Check and tighten all gas fittings.
Properly prepare tungsten.
Reset supplementary protectors CB1, CB2 and/or CB3 (see Section 8-1).
Have Factory Authorized Service Agent check brushes, slip rings, and circuit boards PC1 and PC2.
Check and clean air cleaner as necessary.
Have Factory Authorized Service Agent check engine speed.
See engine manual.
Have Factory Authorized Service Agent check engine speed.
Have Factory Authorized Service Agent check engine speed, brushes, slip rings, and field current control
board PC2.
Check receptacle wiring and connections.
Check fuses F6 and F7, and replace if open (see Section 9-5).
Check battery voltage.
Check battery connections and tighten if necessary.
Check plug PLG5 and plug PLG8 connections.
Have Factory Authorized Service Agent check Engine Control switch S2.
Check fuel level (see Section 5-4).
Check battery and replace if necessary.
Check engine charging system according to engine manual.
Have Factory Authorized Service Agent check fuel shutoff solenoid FS1 according to engine manual.
See engine manual.
Check oil level (see Section 5-4). Low oil pressure shutdown stops engine if oil pressure is too low.
Use correct grade oil for operating temperature. (see Section 9-1).
Have Factory Authorized Service Agent check low oil pressure shutdown switch S5.
Remedy
Remedy
Remedy
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