OWNER’S MANUAL
OMĆ844 183 973D
March 2000
For RFCS-14, RFCS-14HD And
RFCS-5 Foot Controls
READ SAFETY BLOCKS in welding power
source Owner’s Manual before proceeding.
WARNING
1. Typical Connection
Ref. ST-801 736
Turn Off welding power source.
1 Foot Control
2 Remote 14 Or Remote 5
Receptacle
Insert plug into matching 14-sock-
et, or 5-socket receptacle, as appli-
cable, on welding power source.
Tighten collar.
1
2
2. Remote Amperage Control For Welding Power Source Without
Remote Control Switch
Ref. ST-155 790-E
On
0 A DC
Off
Select Maximum
Amperage Percentage.
Select Weld Process Select Range And Polarity
33 A DC
Combination Front Panel
And
Remote Control
Approximately
50% = Approx. 33 A DC
Press pedal lightly to turn
weld output and gas flow
on. Press pedal further to
increase weld output.
Release pedal to turn off
weld output and gas flow.
OM-844 Page 2
3. Remote Amperage Control For Welding Power Source With Remote Control Switch
But Without Output (Contactor) Control
. See welding power source
Owner’s Manual to determine
if Remote Foot Control works
as a combination or as full Am-
perage control.
Ref. ST-122 023-A / Ref. ST-141 127-A / ST-039 411-D
OR
EXAMPLE Of Full Remote Amperage Control
Set Switch
In Example:
Min = 30 A In Range A or 40 A In
Range B (Unit Minimum)
Max = 95 A In Range A or 200 A In
Range B (Control Setting)
Control Setting
Does Not Matter
Unit Maximum
In Example:
Min = 30 A In Range A or 40 A
In Range B (Unit Minimum)
Max = 225 A In Range A or 375 A In
Range B (Unit Maximum)
Unit Minimum
Unit Minimum
Control Setting
Set Desired Maximum
Amperage For Application
Set Switch
Press pedal to increase weld
output. Release pedal to
decrease weld output.
Press pedal to increase weld
output. Release pedal to
decrease weld output.
Example Of Combination Front Panel
And Remote Amperage Control
OM-844 Page 3
4. Remote Amperage Control For Welding Power Source With Remote Control Switch
And Output (Contactor) Control
. See welding power source
Owner’s Manual to determine
if Remote Foot Control works
as a combination or as full Am-
perage control.
Ref. ST-114 018 / Ref. ST-801 736
0
On
Off
0
On
Off
EXAMPLE Of Full Remote Amperage Control
Control Setting
Does Not Matter
Set Switch Set Switch
Set Control
Set Switch Set Switch
Combination Front Panel
And
Remote Control
Control
Setting
(150 A)
Unit
Maximum
Press pedal lightly to turn weld
output and gas flow on. Press
pedal further to increase weld
output. Release pedal to turn
off weld output and gas flow.
Press pedal lightly to turn weld
output and gas flow on. Press
pedal further to increase weld
output. Release pedal to turn
off weld output and gas flow.
Example Of Combination Front Panel
And Remote Amperage Control
OM-844 Page 4
5. Adjusting Potentiometer Timing
Disconnect foot control from weld-
ing power source/generator.
Turn unit upside down, and remove
bottom plate.
1 Label
2 Gear
Turn gear on potentiometer shaft
counterclockwise as far as
possible.
Pull drive belt tight and mesh belt
teeth with gear teeth.
Connect free end of small spring
into end of drive belt.
Reinstall bottom plate
S-185 517
BEFORE RE-INSTALLING
BELT, TURN GEAR ALL THE
WAY TO THE STOP.
1
2
6. Changing Cord Location On RFCS-14HD Models
Disconnect foot control from weld-
ing power source/generator.
1 Bottom Plate
Turn unit upside down, and remove
bottom plate.
Remove screw that holds cord in its
factory installed location.
2 Cord Slots
Position cord in desired slot.
Slide strain relief down cord and
into slot to protect cord. Secure
cord with screw in the same man-
ner in which it came from the
factory.
Reinstall bottom plate
1
2
7. Circuit Diagram
SA-183 957-B
OM-844 Page 5
8. Parts List
1
2
5
7
6
3
10
11
13
8
9
12
ST-801 735-A
2
4
2
Description
Part
No.
Dia.
Mkgs.
Item
No.
Quantity
14 5 14HD
RFCS Model
1 182 030 Belt, drive 1 1 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 185 929 Pedal / housing / bottom plate 1 1 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 198 036 Bottom Plate, heavy duty 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 182 627 Spring, ext .375 OD 1 1 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 S1 183 629 Switch, limit 10A 125/250V 1 1 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 182 628 Cable Control 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 186 476 Cable Control 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 199 405 Cable Control 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 PGL1 131 204 Connector & Sockets 1 1 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 175 284 Cable, port 20ga 5/c 21ft 21ft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 199 410 Cable, port 18ga 5/c 21ft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
199 409 Strain Relief 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 PLG2 144 310 Connector & Sockets 1 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
143 922 Connector, clamp str 1 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 PLG2 039 273 Connector & Sockets 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
039 685 Connector, clamp str 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 182 626 Spring, ext .750 OD 1 1 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11 R1 183 956 Potentiometer w/Leads 1k ohm 1 1 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12 RC1 131 203 Connector & Sockets 1 1 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13 C1, 2 028 291 Capacitor, cer disc 2 2 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Miller RFCS-14HD Owner's manual
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