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MAINTENANCE

MINIFLEX

®

PORTABLE WELDING FUME EXTRACTOR

MAINTENANCE

ELECTRIC SHOCK can kill.

Unplug MINIFLEX before changing filter or
replacing carbon brushes.

Service and Repair should only be performed
by Lincoln Electric Factory Trained Personnel.
Unauthorized repairs performed on this
equipment may result in danger to the
technician and machine operator and will invalidate your
factory warranty.  For your safety and to avoid Electrical
Shock, please observe all safety notes and precautions
detailed throughout this manual.

• 

The steel collection pan should be inspected, cleaned
and emptied on a monthly basis.  

• 

The pre-separator (located on the bottom of the main
filter) should be inspected and cleaned on a monthly
basis, using an industrial vacuum cleaner. 

• 

The pre-filter should be inspected and cleaned on a bi-
monthly basis, using compressed air or an industrial
vacuum cleaner.

• 

Frequency of cleaning and emptying depends on a
number of factors such as the type of welding process
and the frequency of use. 

• 

The main filter should be checked every month to
ensure that there is no damage. 

• 

The seals of the main filter should be checked every 
12 months. 

• 

When fume extractor is not in use, wrap cord and place
in the handle opening. Store fume extractor in a dry
place.

• 

When fume extractor is in use, take precaution that the
cord is protected from damage and not a tripping
hazard.

Refer to Figure 6 for the following instructions.

emPtying the steel ColleCtion Pan

1.   Remove electrical cord of MINIFLEX unit from electrical outlet.

2.   Loosen the side clips (A).

3.   Remove the top cover (B) from the machine.

4.   Remove LongLife-H Filter (C) by lifting the filter out of the bottom

compartment of the unit.

5.   Remove pre-filter (H)

6.   Empty the collection pan (D) and dispose of waste properly*. 

7.   Replace the pre-filter and the LongLife-H Filter to the bottom unit

and reattach top cover by fastening the side clips (A). 

*Check with local authorities for regulations governing the proper
disposal of used filters and particulate matter.

The particulate matter collected in the unit may be
dangerous to your health. Take necessary precautions so
that you and your fellow workers do not breathe dust and
particulate. Wear a suitable respirator when disposing of
the particulate. Follow local Environmental regulations
for disposal of filters and particulate matter.

rePlaCing the Filters

The main LongLife-H filter and the HEPA filter cannot be cleaned and
therefore they have to be replaced periodically. It is recommended to
replace all filters at the same time.

A saturated filter often contains dust and dirt particles
which could form a health hazard upon inhalation. When
replacing the filters, always wear a high-quality and
approved face mask or respirator. Wrap the filters in a
properly closed plastic bag and dispose of it in
compliance with local regulations.

Replace the filters in case of damage or when the extraction capacity
has become insufficient due to the amount of particulate in the filter.  

Periodic check of the filters is required to maintain optimal
performance and life of unit. Filter performance/life is dependent on
variables such as:

- Welding application/processes

- Oil involved in weld processes

- Dust/grinding particulate

- Proper usage and maintenance

Note:  There is no filter clog indicator on this machine.

WARNING

WARNING

WARNING

B

C

H

A

E

G

F

D

A. Side Clips

B. Top Cover

C. LongLife-H Filter

D. Main Filter Seals 

E. Outlet Cover

F. HEPA Filter

G. Carbon Brushes

H. Pre-filter

14

FIGURE 6

Summary of Contents for Miniflex

Page 1: ...s K3972 3 K2497 18 Save for future reference Date Purchased Code ex 10859 Serial ex U1060512345 Operator s Manual Need Help Call 1 888 935 3877 to talk to a Service Representative Hours of Operation 8...

Page 2: ...A LARGE ROOM OR OUTDOORS natural ventilation may be adequate if you keep your head out of the fumes See below USE NATURAL DRAFTS or fans to keep the fumes away from your face If you develop unusual s...

Page 3: ...nnect to a properly grounded outlet only See Grounding Instructions This appliance must be grounded If it should malfunction or breakdown grounding provides a path of least resistance for electric cur...

Page 4: ...rs and devices in position and in good repair Keep hands hair clothing and tools away from V belts gears fans and all other moving parts when starting operating or repairing equipment 1 e In some case...

Page 5: ...to ANSI Z87 I standards 4 b Use suitable clothing made from durable flame resistant material to protect your skin and that of your helpers from the arc rays 4 c Protect other nearby personnel with su...

Page 6: ...nt passing through lifting chains crane cables or other alternate circuits This can create fire hazards or overheat lifting chains or cables until they fail 6 h Also see item 1 c 6 I Read and follow N...

Page 7: ...cal device used to capture welding fume at or near the arc and filter conta minants out of the air The ventilation or exhaust needed for your application depends upon many factors such as Workspace vo...

Page 8: ...ebsite at http www aws org Supplemental Information Not listed Nuisance value maximum is 10 milligrams per cubic meter PEL value for iron oxide is 10 milligrams per cubic meter TLV value for iron oxid...

Page 9: ...nstallation 11 Operation Safety Precautions 11 Recommended Uses 11 Operating Instructions 12 Maintenance 14 Troubleshooting Guide 17 Accessories 18 Wiring Diagram 19 Parts List parts lincolnelectric c...

Page 10: ...d maximum hose length is 24 ft 7 5m on extraction side of unit Consult lincoln electric automation department at 1 888 935 3878 before using any other size or length of hose TECHNICAL SPECIFICATIONS 1...

Page 11: ...ace as these provide maximum protection from moving parts and insure proper vacuum operation and cooling air flow The MINIFLEX is a portable high vacuum welding fume extractor designed for the removal...

Page 12: ...able of the welding machine into the slot on top of the machine Figure 4 Slot when using Automatic Start Stop mode 3 Start up the machine by pressing the switch located on the side of the machine 4 At...

Page 13: ...owcheck tests for a minimum airflow of approximately 60 CFM Flowcheck Procedure 1 Remove all connected apparatus such as hoses nozzles etc from inlet and outlet 2 Switch unit to On main switch O I 3 W...

Page 14: ...filter out of the bottom compartment of the unit 5 Remove pre filter H 6 Empty the collection pan D and dispose of waste properly 7 Replace the pre filter and the LongLife H Filter to the bottom unit...

Page 15: ...if applicable 1 Remove electrical cord of MINIFLEX unit from electrical outlet 2 Loosen the side clips A 3 Remove the top cover B from the machine 4 Place carbon filter directly on top of LongLife H...

Page 16: ...16 MAINTENANCE MINIFLEX PORTABLE WELDING FUME EXTRACTOR Carbon brush rePlaCement instruCtions FIGURE 8 E D C F G...

Page 17: ...0Hz K3972 3 230 VAC 50Hz K2497 18 input power at the machine Circuit breaker tripped Reset circuit breaker Carbon brushes worn Check brushes replace if necessary Unit is in OFF mode Press and release...

Page 18: ...le 20 inches 500 mm Fume Extraction Guns To extract welding fumes Lincoln Electric s Magnum 400XA GMAW gun and the 350A 500A FCAW SS guns can be connected to the MINIFLEX and its extraction hose Extra...

Page 19: ...nside the machine on one of the enclosure panels If the diagram is illegible write to the Service Department for a replacement Give the equipment code number D1 D2 S1 S4 H1 U1 D5 D4 D3 S2 S3 D7 U4 U2...

Page 20: ...HEET M 3 17 9SFC0615580010 BUNDLE BAND HOLDER 2 18 9SS25930 10 8 32 X 38 TORX BUTTON HEAD SCREW 2 19 9SFC0711011030 MF PLATE 1 20 9SFC0801740350 TOP COVER MINIFLEX 1 21 9ST10800 59 SWITCH 1 22 9SS1999...

Page 21: ...MBER DESCRIPTION QTY 9SS31223 4 CARBON BRUSH KIT 115V MINIFLEX 2 9SFC0810100070 GASKET MAIN FILTER 1 K3972 3 General Assembly 4 Miniflex Fume Extraction K3972 3 Printed 04 27 2016 at 13 02 59 Produced...

Page 22: ...P 880 C jpg K3972 3 General Assembly Miniflex Fume Extraction K3972 3 5 Printed 04 27 2016 at 13 02 59 Produced by Enigma...

Page 23: ...HEAD SCREW 2 17 9SFC0326711100 PCB CONTROLLER MINIFLEX 1 18 9SFC0615580010 BUNDLE BAND HOLDER 2 19 9SFC0711011030 MF PLATE 1 20 9SFC0801740350 TOP COVER MINIFLEX 1 21 9ST10800 59 SWITCH 1 22 9SS19999...

Page 24: ...BER DESCRIPTION QTY 9SS31223 9 CARBON BRUSH KIT 230V MINIFLEX 2 9SFC0810100070 GASKET MAIN FILTER 1 K2497 18 General Assembly 4 Miniflex Fume Extraction K2497 18 Printed 04 27 2016 at 13 02 07 Produce...

Page 25: ...P 883 C jpg K2497 18 General Assembly Miniflex Fume Extraction K2497 18 5 Printed 04 27 2016 at 13 02 07 Produced by Enigma...

Page 26: ...parts or electrode with skin or wet clothing l Insulate yourself from work and ground l No toque las partes o los electrodos bajo carga con la piel o ropa moja da l Aislese del trabajo y de la tierra...

Page 27: ...d Entl ftung des Arbeitsplatzes l Mantenha seu rosto da fuma a l Use ventila o e exhaust o para remover fumo da zona respirat ria l Turn power off before servicing l Desconectar el cable de ali mentac...

Page 28: ...ion of information or advice create expand or alter any warranty with respect to the sale of our products Lincoln Electric is a responsive manufacturer but the selection and use of specific products s...

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