Lincoln Electric IM10178 POWER FEED 84 U.I. CONTROL BOX - Manual (Page 77)

D-1
MAINTENANCE
saFety PreCautions
ELECTRIC SHOCK can kill.
• Turn the input power OFF at the welding
power source before installation or changing
drive rolls and/or guides.
• Do not touch electrically live parts.
• When inching with the gun trigger, electrode and drive
mechanism are "hot" to work and ground and could
remain energized several seconds after the gun trigger is
released.
• Do not operate with covers, panels or guards removed or
open.
• Only qualified personnel should perform maintenance
work.
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WFS Calibration
Measurements for adjusting the WFS calibration must be
made before entering the set-up menu.
On dual feeders, there is calibration value for each wire
drive.
Wire Feed Speed offset allows the operator to adjust
the speed of the WD drive rolls. The adjustment can
rangefrom-5%to+5%ofnormalspeed.
Ondual-headPowerFeed84Feeders,adifferentset-
ting can be used for each head. The operator will be
promptedtoselectwhichheadtoeditbeforethesetting
canbechanged.
The calibration factor is adjustable from 0.95 to 1.05.
Adjust the WFS calibration value in the set-up menu.
While in the set-up menu, adjust the calibration factor as
follows:
Example:
Actual WFS 405
Set WFS 400
rouTine MainTenance
Check weld cables, control cables and gas hoses for
cuts.
Clean and tighten all weld terminals.
periodic MainTenance
Clean the drive rolls and inner wire guide and replace if
worn.
Blow out or vacuum the inside of the feeder.
Inspect the motor brushes every 6 months. Replace if
shorter than 0.5” (12.7mm).
Every year inspect the gearbox and coat the gear teeth
with a moly-disulfide filled grease.
do noT use graphite
grease.
WARNING
POWER FEED 84, POWER FEED 84 DUAL
= CalibrationFactor , Example: = 1.01