Procedure for setting angle of feed plate, To set idle pressure, see, Idle roll pressure setting – Lincoln Electric SVM143-A User Manual
Page 28: To set idle roll pressure, see, Idle roll pressure, Setting, Feeding electrode and brake adjustment, B-10, Drive roll pressure setting, Procedure for setting angle of feedplate
B-10
OPERATION
B-10
FEEDING ELECTRODE AND BRAKE
ADJUSTMENT
1. Turn the Reel or spool until the free end of the
electrode is accessible.
2. While tightly holding the electrode, cut off the
bent end and straighten the first 6 in. (150 mm).
Cut off the first 1 in. (25 mm). (If the electrode is
not properly straightened, it may not feed or may
jam causing a “birdnest”.)
3. Insert the free end through the incoming guide
tube.
4. Press the Cold Inch key or the Cold Feed Mode
gun trigger and push the electrode into the drive
roll.
When feeding with the gun trigger, unless “COLD
FEED” trigger mode is selected, the electrode and
drive mechanism are always “HOT” to work and
ground and could remain “HOT” several seconds after
the gun trigger is released.
___________________________________________
5. Feed the electrode through the gun.
6. Adjust the brake tension with the thumbscrew on
the spindle hub, until the reel turns freely but with
little or no overrun when wire feeding is stopped.
Do not overtighten.
DRIVE ROLL PRESSURE SETTING
The DH-10 pressure is factory pre-set to about posi-
tion “2” as shown on the pressure indicator on the
front of the feedplate door. This is an approximate
setting.
The optimum drive roll pressure varies with type of
wire, surface condition, lubrication, and hardness.
Too much pressure could cause “birdnesting”, but too
little pressure could cause wire feed slippage with
load and/or acceleration. The optimum drive roll set-
ting can be determined as follows:
1. Press end of gun against a solid object that is
electrically isolated from the welder output and
press the gun trigger for several seconds.
DH-10
WARNING
2. If the wire “birdnests”, jams, or breaks at the drive
roll, the drive roll pressure is too great. Back the
pressure setting out turn, run new wire through
gun, and repeat above steps.
3. If the only result is drive roll slippage, disengage
the gun, pull the gun cable forward about 6 in.
(150 mm). There should be a slight waviness in
the exposed wire. If there is no waviness, the
pressure is too low. Increase the pressure set-
ting turn, reconnect the gun, tighten locking
clamp and repeat the above steps.
PROCEDURE FOR SETTING ANGLE
OF FEEDPLATE
1. Loosen the clamping collar screw using a 3/16 in.
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.
2. Rotate feedplate to the desired angle and tighten
clamping collar screw.
GAS GUARD REGULATOR SETTING
1. With the gas supply shut off, the Gas Guard reg-
ulator flow adjusting Key should be set to maxi-
mum (full clockwise) which is rated to be 60
SCFH (28 l/min).
2. Adjust gas supply flow rate for a level higher than
will be required, then adjust Gas Guard flow
adjusting Key counterclockwise to the desired
gas flow rate.
MAKING A WELD
1. Use only a Lincoln Electric recommended con-
stant voltage DC power source compatible with
the DH-10 Wire Feeder.
2. Properly connect the electrode and work leads
for the correct electrode polarity.
3. Use the Trigger Mode Selection key to set
desired trigger mode for each feeder head and
procedure. (Refer to
this section.)