Miller Electric RFC-23A User manual

OWNER’S MANUAL
2010 MILLER Electric Mfg. Co.
FORM: OM-826 029 900V
2010−10
RFC-23A Remote Foot Control
1. Safety Symbol Definitions
DANGER! −Indicates a hazardous situation which, if not
avoided, will result in death or serious injury. The pos-
sible hazards are shown in the adjoining symbols or
explained in the text.
Arc rays can burn eyes and skin −wear a welding hel-
met with correct filter, and cover exposed skin with non-
flammable clothing.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury. The possible ha-
zards are shown in the adjoining symbols or explained in
the text.
Wear safety glasses with side shields.
NOTICE Indicates statements not related to personal injury.
Indicates special instructions.
Welding sparks can cause fire or explosion. Move flam-
mables away. Do not weld on closed tanks or barrels −
they can explode. Clean tanks or barrels properly.
Beware of electric shock from wiring. Disconnect input
power before installing this kit. Reinstall all panels and
covers.
Breathing welding fumes and gases can harm your
health. Welding requires good ventilation. If ventilation is
impossible, such as when welding in a confined space,
use an air-supplied respirator.
CALIFORNIA PROPOSITION 65 WARNINGS
Welding or cutting equipment produces fumes or gases which contain chemicals known to the State of California to cause birth defects and,
in some cases, cancer. (California Health & Safety Code Section 25249.5 et seq.)
This product contains chemicals, including lead, known to the state of California to cause cancer, birth defects, or other reproductive harm.
Wash hands after use.
2. Specifications And Connections
Ref. 141 294-A / 800 096
1 Twistlock Plugs
Units are equipped with 20 ft (6 m)
cord(s). If a longer cord is required
see Section 3.
1
A 7-1/2 in.
(190 mm)
B 6-1/4 in.
(159 mm)
C 11 in.
(279 mm)
A
BC

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3. Selecting Interconnecting Cord
Amperage Or Voltage Control Contactor Control
Cord Length Conductor Size (AWG) Cord Length Conductor Size (AWG)
Up to 20 ft (6 m) No. 16
Up to 200 ft (61 m) No. 16
21 to 50 ft (6 to 15 m) No. 14
51 to 100 ft (16 to 31 m) No. 12
101 to 200 ft (31 to 61 m) No. 10

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4. Adjusting Amperage Without Output (Contactor) Control
.See welding power source
Owner’s Manual to determine
if Remote Foot Control works
as a fine or as full Amperage
control.
Ref. 122 023-A / Ref. 141 127-A / 039 411-D
EXAMPLE Of Fine Remote Amperage Control
OR
EXAMPLE Of Full Remote Amperage Control
Set Switch Set Desired Max.
Amperage For Application Press Control To Adjust Amperage
Control Setting
Unit Minimum
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)
Set Switch Control Setting
Does Not Matter Press Control To Adjust Amperage
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

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5. Routine Maintenance
Everyday
!Turn off welding power source and disconnect
foot control before maintaining.
Move Control From
Min. To Max.
3 Months
Cord(s)
Replace
Cracked
Parts
Replace
Unreadable
Labels
6. Troubleshooting
Trouble Remedy
No amperage or voltage control. Set switches and controls on welding power source or generator (see Section 4*).
Be sure welding power source Power switch is On.
Secure cord connections or replace cords, if necessary.
Be sure welding power source Power switch is On.
Secure cord connections or replace cords, if necessary.
*See welding power source or generator Owner’s Manual.
7. Electrical Diagram
162 462-B
Figure 7-1. Circuit Diagram For RFC-23A

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8. Parts List DescriptionPart No.
Item No.
1 206 075 PIN, hinge 1.. .. .. .........................................................
2 019 662 PEDAL, foot 1.. .. .. .......................................................
3 175 972 SPRING, torsion 1.. .. .. ...................................................
4 +159 894 CASE SECTION, cover/end 1.. .. .........................................
085 220 LABEL, caution electric circuit etc 1....... .. .....................................
6 600 340 CABLE, port no 16 2/C TYPE SOOW RB JKT 20 Ft.. .. .. .......................
7 039 618 PLUG, twlk 2P 2W 20A 250V 1.. .. .. ........................................
8 605 797 PLUG, twlk 3P3W 20A 125V 1.. .. .. .........................................
9 204 213 CABLE, port no 16 3/C TYPE ST PVC JKT 20 Ft.. .. .. ..........................
10 139 042 BUSHING, strain relief .270/.470 ID X .804 mtg hole 2.. . .. ....................
11 014 920 CASE SECTION, base/side 1.. . .. ..........................................
12 239 388 BUMPER, rbr .875 OD X .188 ID X .39 high recessed 4.. . .. ...................
13 011 628 SWITCH, limit 15A 125V 1.. . .. ............................................
14 159 897 SCREW, shld stl sch .250-20 x .437 2.. . .. ...................................
15 159 895 BAR, pedal control foot 1.. . .. ..............................................
16 010 795 ACTUATOR, switch limit 1.. . .. .............................................
17 184 179 SPACER, support arm brush 1.. . .. .........................................
18 159 892 BRACKET, support arm 1.. . .. .............................................
19 159 893 ARM, brush holder 1.. . .. ..................................................
20 604 432 SCREW, cap stl sch 8-32 x 1.000 1.. . .. .....................................
21 018 639 HOLDER, brush 1.. . .. ....................................................
22 *018 640 BRUSH, contact 1.. .. ....................................................
23 161 306 CAP, brush holder 1.. . .. ..................................................
24 079 625 WASHER, spring stl .500 shakeproof 1.. . .. ..................................
25 159 896 SCREW, shld stl sch .312-18 x .375 1.. . .. ...................................
26 601 795 BOLT, mach stl hexhd .250-20 x 4.500 1.. . .. ................................
27 172 177 INSULATOR, resistor 2.. . .. ...............................................
28 175 266 RESISTOR, WW adj 130W 15 ohm 1.. . .. ...................................
29 601 855 NUT, weld .250-20 1.. . .. ..................................................
30 010 322 NUT, 375-00 slip-on plastic acorn 1.. . .. .....................................
NAMEPLATE (order by model number) 1................. ................................
+ When ordering a component originally displaying a precautionary label, the label should also be ordered.
*Recommended Spare Parts.
To maintain the factory original performance of your equipment, use only Manufacturer’s Suggested
Replacement Parts. Model and serial number required when ordering parts from your local distributor.
Ref 145 917-G
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Notes

Notes