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Lincoln Electric IM10163 FLEX FEED 74 HT User Manual

Page 19

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A-12

INSTALLATION

FLEX FEED™ 74 HT

PINION GEAR RATIO

As shipped from the factory, a 20 tooth pinion gear is
installed. If desired, the 30 tooth pinion gear may be
installed for more speed but less torque.

1. Turn power OFF at the welding power source.
2. Open the wire drive door and loosen the set screw

holding the hinge pin using a 5/64” hex key. Slide the
hinge pin towards the rear and remove the door.

HINGE PIN

SET SCREW

FIGURE A.15

FIGURE A.16