OWNER’S MANUAL
© 1994 MILLER Electric Mfg. Co.
July 1995 FORM: OM-680C
Use above FORM number when ordering extra manuals.
For Running Gear/Cylinder Rack 042 537
WARNING
ELECTRIC SHOCK can kill.
• Do not touch live electrical parts.
• Turn Off wire feeder and welding power source and
input disconnect device.
• Disconnect input power conductors from
deenergized supply line BEFORE moving welding
power source.
CYLINDERS can explode if damaged.
• Keep cylinders away from welding and other
electrical circuits.
• Never touch cylinder with welding electrode.
• Always secure cylinder to running gear, wall, or
other stationary support.
FALLING EQUIPMENT can cause injury
and damage.
• Lift unit only with proper equipment and correct
procedures.
• If using lift forks, be sure forks extend out of opposite
side of unit.
• Do not place any part of the body under the unit while
it is suspended.
miscwarn1.1* 2/93
ST-800 409 / ST-146 246-D
A
B
C
D
E
*F
Inches
27
10-3/4
10
54-1/2
33
40-3/4
Millimeters
686
273
254
1384
838
1035
Weight
Net Ship
105 lbs 195 lbs
(89 kg)(48 kg)
* Adjustable from 32-1/2 in (826 mm)
to 40-3/4 in (1035 mm)
A
B
D
E
F
C
Do not put feeder where
welding wire hits cylinder.
Figure 1. Assembled Running Gear/Cylinder Rack
OM-680 Page 2
Tools Needed:
Ref. ST-161 976-A / ST-141 191-C
19
18
17
Part
No.
Item
No.
Description (Qty)
2
1
34
Crimp Items
2 and 4.
1 022 617 Cylinder Chain (2)
2 602 389 · S-Hook (1)
3 602 387 · Chain (1)
4 602 384 · Snap (1)
5 004 214 Bushing, 1-5/8 ID x 2 in mtg hole (4)
6 155 585 Feeder Tray (1)
7 155 587 Handle (1)
8 097 153 Screw, 5/16-18 x 1/2 (32)
9 155 588 Cable Hanger (2)
10 156 056 Forward Strut (2)
11 155 891 Handle Spacer (2)
12 010 910 Washer, 3/8 flat (8)
13 080 389 Screw, 5/16-18 x 1 in (8)
14 168 247 Caster, 5 in (2)
15 156 052 Base (1)
16 156 057 Rear Strut (2)
17 121 614 Retaining Ring (2)
18 602 250 Washer, 13/16 flat (2)
19 140 293 Wheel, 10 in (2)
Hardware For Mounting Components
602 101 Screw, 10-24 x 5/8 (20, 60 Series Feeders) (8)
602 112 Screw, 10-24 x 1-1/4 (Optima, 50 Series
Feeders) (6)
089 799 Screw, 1/4-20 x 1/2 (Maxtrons, Turntable) (9)
604 224 Screw, 1/4-20 x 3/4 (XMT-400) (4)
108 942 Screw, 1/4-20 x 1-1/4 (XR Feeders) (2)
601 965 Screw, 3/8-16 x 1 (Arc Pak) (4)
602 238 Washer, 3/16 flat (20, 50, 60 Series Feeders) (4)
602 203 Washer, No. 10 lock (20, 60 Series Feeders) (8)
602 207 Washer, 1/4 lock (Maxtrons, Turntables, XR
Feeders) (11)
602 213 Washer, 3/8 lock (Arc Pak) (4)
131 749 Nut, 10-24 (Optima, 20, 50, 60 Series Feeders) (8)
601 865 Nut, 1/4-20 (Maxtrons, Turntables,
XR Feeders) (11)
601 872 Nut, 3/8-16 (Arc Pak) (4)
156 493 Stand-Off, 10-24 x 1-3/8 (20, 60 Series Feeders) (4)
Be sure to provide Model when ordering replacement parts.
Remove paint from
axle grooves before
installing retaining
rings (17).
Part
No.
Description (Qty)
1/2 in
1/2 in
16
15
14
5
6
7
8
9
10
11
Optional
Optional
12
13
Figure 2. Assembling Running Gear/Cylinder Rack
OM-680 Page 3
1 Vertical-Style Cooling Unit
2 Gas Cylinder
Secure gas cylinder and/or cooling
unit with chain.
3 Wire Feeder
Holes are provided to install various
models in different locations; see
Figures 4 and 5.
4 Optima Synergic Control
5 10-24 x 1-1/4 in Screw
6 Nut
Four installation locations are pro-
vided; select location, and install
two supplied mounting screws as
shown. Hang control on mounting
screws.
7 Horizontal-Style Cooling Unit
8 Circular-Style Cooling Unit
Place cooling unit on flat part of
base; allow for proper clearance
between unit and welding power
source.
9 Welding Power Source
XMT Models:
Unscrew four metal feet from rub-
ber mounting pads on bottom of
unit, position unit so holes align,
and secure by reinstalling metal
feet from bottom of base.
Maxtron And Arc Pak Models:
Position unit so four mounting holes
align and secure using supplied
screws, nuts and lock washers.
Maxtron uses 1/4-20 x 1/2 in
screws, and Arc Pak uses 3/8-16 x
1 in screws.
ST-156 627 / Ref. ST-137 227-A / S-0514 / Ref. ST-128 574
7/16, 3/8, 9/16 in
Tools Needed:
1/4 in
(6.4 mm)
56
1
2
3
9
8
7
4
Figure 3. Installing Welding Power Source, Gas Cylinder, Cooling Unit, And Synergic Control
OM-680 Page 4
1 Feeder Tray
2 Base Mounting Hole
3 Wire Feeder Base
4 Stand-Off
5 60 Series Wire Feeder
(Single Drive Model)
Select one of three installation loca-
tions (A, B, or C) and install using
supplied stand-offs, 10-24 x 5/8 in
screws and lock washers.
Tools Needed:
ST-156 481 / Ref. ST-156 924 / ST-159 281 / Ref. ST-143 327-A / ST-125 700-B
2
5
ACB
ACB
C
C
AB
AB
A
A
A
A
2
ABC
ABC
ABC
6 60 Series Wire Feeder (Dual
Drive Model)
Locate four mounting holes on tray
and install using supplied stand-
offs, 10-24 x 5/8 in screws and lock
washers.
7 20 Series Wire Feeder
Select one of three installation loca-
tions (A, B, or C) and install using
supplied stand-offs, 10-24 x 5/8 in
screws and lock washers.
3
4
1
1
1
1
2
6
27
Figure 4. Installing 20 And 60 Series Wire Feeders
OM-680 Page 5
1 Feeder Tray
2 Base Mounting Hole
3 Turntable Base
Select one of four installation loca-
tions; A thru C use six mounting
holes, and D uses five holes. Install
base to feeder tray using supplied
1/4-20 x 1/2 in screws, nuts and
lock washers. Install wire feeder
onto Turntable (see Turntable Own-
er’s Manual).
7/16, 3/8 in
Tools Needed:
ST-156 481 / ST-083 487-C / ST-155 254 / ST-128 502
3
2
ABC D
ABC D
ABC D
AB D
AB
AB D
4
2
AB C
AB C
5
2
ACB
ACB
C
C
AB
AB
4 XR Wire Feeder
Remove feeder right side panel,
and open left access door (see wire
feeder Owner’s Manual). Remove
and discard both existing center
mounting screws.
Select one of three installation loca-
tions (A, B, or C), align both holes,
and install using supplied 1/4-20 x
1-1/4 in screws, nuts and lock
washers. Reinstall side panel and
close access door.
5 50 Series Wire Feeder
Select one of three installation loca-
tions (A, B, or C) and install using
supplied 10-24 x 1-1/4 in screws,
nuts and lock washers.
C
C
C
1
1
1
Figure 5. Installing Turntable Base, XR Wire Feeders, And 50 Series Wire Feeders
/