Miller RFCS-RJ45 User manual

OWNER’S MANUAL OM-245 021C
2012−05
RFCS - RJ45 Foot Control
1. Safety
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.
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.
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.
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.
NOTICE Indicates statements not related to personal injury.
Indicates special instructions.
Arc rays can burn eyes and skin −wear a welding helmet
with correct filter, and cover exposed skin with nonflam-
mable clothing.
Beware of electric shock from welding electrode or wiring.
Touching the electrode while in contact with the work or
ground can cause electric shock. Always wear dry
gloves. Keep all panels and covers closed.
Wear safety glasses with side shields.
2. Typical Connections And Operation
805 465-A
1 Welding Power Source Foot
Control Receptacle
2 Strain Relief (Optional
Installation)
3 Cord
4 Foot Control
If desired, route cord through strain
relief. Remove screw, as shown,
from welding power source, and
use screw to secure strain relief.
Plug one end of cord into receptacle
on welding power source.
OPERATION:
Press pedal lightly to turn weld
output and gas flow on. Press pedal
further to increase weld output.
Raise pedal to reduce amperage,
crater-out, and turn off weld output
and gas flow.
.See welding power source
Owner’s Manual for additional
information.
Tools Needed:
1
3
2
4
Torx T25

OM-245 021 Page 2
3. Cord Replacement For Models Without External Connector
!Unplug foot control cable
from power source before
starting replacement of
cable.
Removing Existing Cord.
1 Phillips Head Screws
Squeeze pedal and base together,
and remove the two Phillips head
screws as shown in Figures 1 and
2.
After screws are removed, lift pedal
off base. Retain the pedal.
2 Springs (Fig. 3)
Remove and retain springs.
3 Strain Relief Screws (Fig. 3)
Remove and retain the two Phillips
head screws from the cord strain
relief.
4 Retaining Tab
5 Opening In Base
Depress retaining tab and discon-
nect cord as shown in Figure 4.
Rotate cord so retaining tab is fa-
cing down. Remove cord through
openingin base as shown in Figure
5.
Installing Replacement Cord.
Reverse removal procedure as fol-
lows:
Rotate new cord so retaining tab is
facing down. Feed cord through
openingin base as shown in Figure
5.
Rotate cord so retaining tab is fa-
cing up and plug tab into connector
as shown in Figure 4.
Reinstall existing springs. See Fig-
ure 3.
Lightly tighten the two existing Phil-
lips head screws to secure cord
with strain relief (do not crush cord).
See Figure 3.
Set pedal on base.
Squeeze pedal and base together.
Secure pedal to base with existing
Phillips head screws. See Figures
1 and 2.
Tools Needed:
Figure 1 Figure 2
Figure 3 Figure 4
Figure 5 Phillips Screwdriver
1
1
1
2
2
5
4
3

OM-624 Page 3
4. Troubleshooting
Trouble Remedy
No weld output Be sure foot control cord is plugged into matching receptacles on welding power source and inside of
the foot control.
Not enough weld amperage Set weld amperage to highest desired value on welding power source Material Thickness/Amperage
control. Amperage available with foot control is 10 amps to max value set on Thickness/Amperage
control.
5. Parts
Description
Part
No.
245 589
Quantity
RFCS−RJ45 (FOOT CONTROL)
245 044 RFCS−RJ45 FOOT CONTROL (PEDAL ONLY) 1... ......................................
237 676 CABLE CONNECTING, W/CONNECTORS 14 FT 1... ....................................
235 493 CLAMP, STL CUSH .187 DIA X .281 MTG HOLE ZINC PLD 1... ............................