Lincoln Electric SVM207-A Welder User Manual


 
BRUSH REMOVAL AND REPLACEMENT PROCEDURE (continued)
PROCEDURE
1. Remove the spark plug wires.
2. With a 5/16” nut driver or socket, remove the 6
sheet metal screws from the case top.
3. Remove the rubber gasket (cover seal) from the
lift bail.
4. Remove the fuel cap. The rubber gasket for the fill
tube with come off with the case top.
5. Remove the case top, then reinstall the fuel cap.
6. WIth the 5/16” nut driver, remove the 5 screws
holding the right case side.
7. Remove the right case side by lifting up and out.
8. With the needle nose pliers, gently remove the
blue and the red wires from the brushes. See
Figure F.9.
9. With a 7/16” wrench or socket, remove the brush
holder assembly bracket from the stator frame.
10. With a 5/16” open end wrench, remove the two
screws that secure the brush holder assembly to
the bracket. Slide the brush holder assembly out
of the bracket.
11. To change the brushes, use a flat head screw dri-
ver to pop off the plastic retainer on the back of the
brush holder assembly.
12. Remove the old brushes and insert the new ones.
One corner of the terminal clip is beveled so that
the brush can go in only one way.
13. Snap the plastic retainer back onto the brush hold-
er. The brushes may need some repositioning;
wiggle them slightly to help them seat properly on
the slip rings.
14. To reinstall the brush holder, depress the spring-
loaded brushes into the holder and slip a suitable
non-metallic, fairly stiff retainer through the slots at
the top and bottom of the holder. A cable tie works
well, and will hold the brushes up so that you can
easily install the holder.
15. Slide the brush holder assembly back into the
bracket and, with the 5/16” open end wrench,
install the two screws that hold it in place.
16. With the 7/16” wrench, install the brush holder
assembly bracket to the stator frame.
17. Slowly remove the non-metallic retainer from the
brush holder and let the brushes snap back
against the slip rings.
18. With the needle nose pliers, connect the red and
the black wires to the appropriate terminals on the
brushes. The red wire is inboard.
19. Check the wire connections for clearance and
tightness.
20. Reinstall the case side, fuel cap, lift bail gasket,
case top, and spark plug wires.
SLIP RINGS
A slight amount of darkening and wear of the slip rings
and brushes is normal. Brushes should be inspected
when a general overhaul is necessary. If brushes are
to be replaced, clean slip rings with a fine emery paper.
Do not attempt to polish slip rings while engine is run-
ning.
TROUBLESHOOTING AND REPAIR
F-40 F-40
RANGER® 3 PHASE
CAUTION
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