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A-5
Electrode routing
The electrode supply may be either from reels, Readi-
Reels, spools, or bulk packaged drums or reels.
Observe the following precautions:
a) The electrode must be routed to the wire drive unit
so that the bends in the wire are at a minimum,
and also that the force required to pull the wire
from the reel into the wire drive unit is kept at a
minimum.
b) The electrode is "hot" when the gun trigger is
pressed and must be insulated from the boom and
structure.
c) If more than one wire feed unit shares the same
boom and are not sharing the same power source
output stud, their wire and reels must be insulated
from each other as well as insulated from their
mounting structure.
wIrE DrIvE SPEED rANgE
SELECTION
The rated speed and wire size range for each wire
drive head is shown in the SPECIFICATIONS in the
front of this section.
Control Speed range Setting
The speed range is set up to match each wire feed
head connected to the DH-10 control by properly set-
ting the switch (S2) code on the control board inside
the control box. See OPERATION "Setting the DIP
Switches" for setting instructions.
10-Series (Dh) wire Drive ratio Selection
The Double Head type drives include two external
gear sizes; a 1"(25.4mm) dia. gear and a 1-
1/2"(38.1mm) dia. gear. The smaller gear provides the
low speed range ratio, and the larger gear provides
the high speed range ratio per the SPECIFICATIONS
in the front of this section.
The following procedure is for changing ratio of the
DH drive:
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 feedplate from the gearbox. To remove
feedplate:
INSTALLATION
a) Loosen the clamping collar screw using a
b) Loosen the retaining screw, which is also
3) Loosen, but do not remove, the screw on the lower
right face of the feedplate with a 3/16" Allen
wrench.
4) Remove the screw on the left face of the feedplate.
If changing from high speed (larger gear) to low
speed (smaller gear), line the lower hole on the left
face of the feedplate with the threads on the
clamping collar. Line the upper hole with the
threads to install larger gear for high speed feeder.
If feedplate does not rotate to allow holes to line
up, further loosen the screw on right face of feed-
plate.
5) 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 feedplate.
7) Install gear onto output shaft and secure with flat
washer, lock washer, and Phillips head screw
which were previously removed.
8) Re-attach feedplate to wire feeder if removed in
Step 2.
9) Feedplate will be rotated out-of-position due to the
gear change. To re-adjust angle of feedplate:
a) Loosen the clamping collar using a 3/16"
b) Rotate feedplate to the desired angle and
10) Make sure to properly set the switch (S2) code on
the control board inside the control box for the
new gear size installed. See OPERATION
"Setting the DIP Switches" for setting instructions.
Dh-10
3/16" Allen wrench. The clamping collar
screw is accessed from the bottom of the
feedplate. It is the screw which is perpen-
dicular to the feeding direction.
accessed from bottom of feeder, using a
3/16" Allen wrench. Continue to loosen
the screw until the feedplate can be easily
pulled off of the wire feeder.
Allen wrench. The clamping collar screw is
accessed from the bottom of the feedplate.
It is the screw which is perpendicular to
the feeding direction.
tighten clamping collar screw.
A-5
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