Lincoln Electric IM790 SP-175 Plus - Manual (Page 16)

WELDING OPERATIONS
SEQUENCE OF OPERATION
Wire Loading
Refer to Figure B.2 and B.3.
The machine power switch should be turned to the
OFF (
“ O ” ) position before working inside the wire feed
enclosure.
The machine is shipped from the factory ready to feed
8
” (200 mm) diameter spools [2.2 ” (56 mm) max.
width]. These spools fit on a 2 ” (50 mm) diameter
spindle that has a built-in adjustable friction brake to
prevent overrun of the spool and excess slack in the
wire.
Note: When loading and removing the 8 ” Spools
make sure that the wing nut (inside the wire spool
spindle hub) is turned 90
° from the wire spool spindle
locking tab. If the wing nut is positioned in line with the
locking tab, the tab cannot be depressed to load or
unload the wire spool.
Load an 8 ” (200 mm) diameter spool on the wire spool
spindle shown in Figure B.2.
To use 4 ” (100 mm) diameter spools, the 2 ” (50 mm)
diameter spindle must be removed (See Figure B.3).
Remove the wing nut and spacer at the end of the
shaft and remove the outside plastic wire spool spin-
dle. The spindle can be stored in the wire feed com-
partment. A 4
” (100 mm) diameter spool is mounted
directly on the 5/8 ” (16 mm) diameter shaft and held in
place with the previously removed hardware. Also
make certain the start end of the wire, which may pro-
trude through the side of the spool does not contact
any metallic case parts.
FIGURE B.2
B-3
SP-175 PLUS
B-3 OPERATION
FIGURE B.1a
Refer to Figure B.1b
4. Circuit Breaker – Protects machine from damage if
maximum output is exceeded. Button will extend
out when tripped (Manual reset).
FIGURE B.1b
1 1
SP-175 Plus
WELDING AMP RANGE
25-125
3
2
To wire drive
Wire Spool must be pushed all the way on the spindle so that the
spindle
’ s tab will hold it in place. The Wire Spool must rotate clock-
wise when wire is dereeled.
Wire Spool Spindle
Thumb
Screw
Be sure that this stud engages
the hole in the wire spool.
Locking Tab
8 ” Wire Spool