Lincoln Electric SAE-300 Welder User Manual


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 Blow out the welder and controls with an air hose at
least once every two months. In particularly dirty
locations, this cleaning may be necessary once a
week. Use low pressure air to avoid driving dirt into
the insulation.
 Follow the engine service schedule in this manual
and the detailed maintenance and troubleshooting
in the engine manufacturer’s manual.
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The SAE-300® is equipped with a pressure radiator.
Keep the radiator cap tight to prevent loss of coolant.
Clean and flush the cooling system periodically to pre-
vent clogging the passage and overheating the
engine. When antifreeze is needed, always use the
permanent type.
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This welder is equipped with a double synthetic
sealed ball bearing having sufficient grease to last
indefinitely under normal service.
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------------------------------------------------------------------------
Shifting of the commutator brushes may result in:
- Change in machine output
- Commutator damage
- Excessive brush wear
Periodically inspect the commutator, slip rings, and
brushes by removing the covers. DO NOT remove or
replace these covers while the machine is running.
Commutators and slip rings require little attention.
However, if they are black or appear uneven, have
them cleaned by an experienced maintenance man
using fine sandpaper or a commutator stone. Never
use emery cloth or paper for this purpose.
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