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D-1
TROUBLESHOOTING
D-1
LFA 3.1 & 4.1 FUME EXTRACTION ARMS
Observe all Safety Guidelines detailed throughout this manual
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
CAUTION
SYMPTOM PROBLEM SOLUTION
Extraction arm creaks or squeaks.
Poor suction.
For troubleshooting Fan or Filter
problems, refer to the corresponding
manual.
Insufficient lubrication.
Leakage.
Fan outlet blocked.
Air path in arm blocked.
Filter blocked (if used).
Spark arrester blocked (if used).
Blower fan blocked.
Fan seal damaged.
Lubricate hinge points as described in
the Maintenance Section.
Check hose connections and integrity
Remove obstructions from fan outlet.
Remove obstructions from arm.
Check maintenance indicator and
replace filter if necessary.
Clean the spark arrester.
Clean excess fume or spatter from fan.
Check or replace sealing material of fan.