Lincoln Electric IM658-A Operator's Manual page 14

A-6
RATIO CHANGE PROCEDURE:
1) Pull open the Pressure Door.
2) Remove the Phillips head screw retaining the pin-
ion gear to be changed and remove the gear. If
the gear is not easily accessible or difficult to
remove, remove the feed plate from the gearbox.
To remove feed plate:
a) Loosen the clamping collar screw using a 3/16"
Allen wrench. The clamping collar screw is
accessed from the bottom of the feed plate. It is
the screw which is perpendicular to the feeding
direction.
b) Loosen the retaining screw, which is also
accessed from bottom of feeder, using a 3/16"
Allen wrench. Continue to loosen the screw until
the feed plate can be easily pulled off of the wire
feeder.
3) Loosen, but do not remove, the screw on the
lower right face of the feed plate with a 3/16"
Allen wrench.
4) Remove the screw on the left face of the feed
plate. If changing from high speed (larger gear) to
low speed (smaller gear), line the lower hole on
the left face of the feed plate with the threads on
the clamping collar. Line the upper hole with the
threads to install larger gear for high speed feed-
er. If feed plate does not rotate to allow holes to
line up, further loosen the screw on right face of
feed plate.
5) Remove the small gear from the output shaft.
Lightly cover the output shaft with engine oil or
equivalent. Install gear onto output shaft and
secure with flat washer, lock washer, and Phillips
head screw which were previously removed.
6) Tighten the screw on lower right face of feed
plate.
7) Re-attach feed plate to wire feeder if removed in
Step 2.
8) Feed plate will be rotated out-of-position due to
the gear change. Adjust the angle of the feed
plate per the instructions above.
9) Set the High/Low switch code on Wire Drive PC
board as follows:
INSTALLATION
a) Remove the cover from the back of the feed
head (2 screws). The PC board for the left
feed head (facing forward) is located on the
rear access panel. The PC board for the right
feed head is located inside on the divider
panel.
b) Locate the 8-position DIP switch near the top
edge of the PC board, centered left to right.
The setting will be made on the right most
switch, S8.
c) Using a pencil or other small object, slide the
switch down, to the "0" position, when the low
speed gear is installed. Conversely, slide the
switch up, to the "1" position, when the high
speed gear is installed. Refer to Figure A.3.
d) Replace the cover and screws. The PC board
will "read" the switch at power up, automati-
cally adjusting all control parameters for the
speed range selected.
POWER FEED 10 DUAL
A-6