Lincoln Electric POWER FEED 10M SINGLE/DUAL SVM172-A Service Manual page 98

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MAINTENANCE
Safety Precautions
WARNING
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts such
as output terminals or internal wiring.
• When inching with gun trigger, electrode and
drive mechanism are "hot" to work and
ground and could remain energized several
seconds after the gun trigger is released.
• Turn OFF input power at welding power
source before installation or changing
drive roll and/or guide tubes.
• Welding power source must be connect-
ed to system ground per the National
Electrical Code or any applicable local
codes.
• Only qualified personnel should
perform maintenance work.
Observe all additional Safety Guidelines detailed
throughout this manual.
ROUTINE MAINTENANCE
Gun and Cable connection: After feeding every coil of
wire; check tightness of gun connection to wire feed
brass bushing.
Drive Rolls and Guide Tubes
After feeding every coil of wire, inspect the drive roll
section. Clean it as necessary. The driver rolls and
Inner Wire Guides are stamped with the wire sizes
they will feed. If a wire size other than that stamped on
the roll(s) is to be used, the roll(s) and Inner Wire
Guides must be changed.
All drive rolls have two identical grooves. The rolls may
be flipped over to use the other groove.
See "Procedure to Install Drive Rolls and Wire Guides"
in the INSTALLATION section for roll changing instruc-
tions.
Wire Reel Mounting - Readi-Reels and
10 through 30lb (4.5-14kg) Spools
No routine maintenance required.
MAINTENANCE
Avoiding Wire Feeding Problems
Wire feeding problems can be avoided by observing
the following gun handling and feeder set up proce-
dures:
a) Do not kink or pull cable around sharp corners.
b) Keep the electrode cable as straight as possible
c) Do not allow dolly wheels or trucks to run over
d) Keep cable clean by following maintenance instruc-
e) Use only clean, rust-free electrode. The Lincoln
f) Replace contact tip when the arc starts to become
g) Do not use excessive wire spindle brake settings.
h) Use proper drive rolls, wire guides and drive roll
PERIODIC MAINTENANCE
• Every year inspect the gearbox and coat the teeth
• Every six months check the motor brushes. Replace
• Replace the drive rolls and inner wire guide when
• Replace the pig tail if the insulation is cut, abraded or
Gun and Cable Maintenance
See appropriate Operator's Manual.
Procedure for Removing Feedplate from
Wire Feeder
1) Loosen the clamping collar screw using a 3/16"
2) Loosen the retaining screw, which is also accessed
POWER FEED 10M SINGLE/DUAL
when welding or loading electrode through cable.
cables.
tions.
electrodes have proper surface lubrication.
unstable or the contact tip end is fused or deformed.
pressure settings.
with a Moly-disulfide grease. Do Not use graphite
grease.
them if they are less than 1/4" long.
they are worn.
damaged.
Allen wrench. The clamping collar screw is
accessed from the bottom of the feedplate. It is the
screw which is perpendicular to the feeding direc-
tion.
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.
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