Lincoln Electric IM689 K1780-1 Power Feed 10 Robotic - Manual (Page 15)

A-8 INSTALLATION
POWER FEED 10 / R
A-8
3. If the only result is drive roll slippage, disengage the
gun, pull the gun cable forward about 6" (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 setting 3 turns, recon-
nect the gun, tighten locking clamp and repeat the
above steps.
Feeding Electrode and Brake Adjustment
1. Turn the Reel or spool until the free end of the elec-
trode is accessible. If using a drum or large reel,
supply the electrode to the PF-10/R with an elec-
trode conduit. Minimize the number of bends in the
conduit and the distance the electrode must travel.
2. While tightly holding the electrode, cut off the bent
end and straighten the first 6" (150 mm). Cut off the
first 1" (25 mm). (If the electrode is not properly
straightened, it may not feed or may jam causing a
"bird nest".)
3. Insert the free end through the incoming guide tube.
4. Activate the Cold Inch mode until the the drive rolls
grab the electrode.
When feeding with the 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 over tighten.
Drive Roll Pressure Setting
The Power Feed 10/R drive roll pressures are factory
pre-set to about position “2” as shown on the pressure
indicator on the front of the feed plate 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 “bird nesting,” 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 elec-
trically isolated from the welder output and press
the gun trigger for several seconds.
2. If the wire "bird nests", jams, or breaks at the drive
roll, the drive roll pressure is too great. Back the
pressure setting out 2 turns, run new wire through
gun, and repeat above steps.
WARNING