Miller | LE9 | Owner Manual | Miller RHC-3 User manual

Miller RHC-3 User manual
OWNER’S MANUAL
OM-823
029 899P
October 2003
RHC-3, RHC-3GD34A, And
RHC-14 Remote Hand Controls
READ SAFETY BLOCKS in welding power
source Owner’s Manual before proceeding.
WARNING
1.
Specifications And Connections
1
Twistlock Plug
2
5- Or 14-Pin Amphenol Plug
Units are equipped with a 20 ft
(6 m) cord. If a longer cord is
required, see Table 3-1.
A
C
B
C
B
7-1/2 in
(191 mm)
9-1/2 in
(241 mm)
8-3/4 in
(222 mm)
1
2
A
ST-141 127-A
2.
Selecting Interconnecting Cord
Conductor Size (*AWG)
Cord Length
Amperage Or Voltage Control
Up to 20 ft (6 m)
No. 16
Up to 20 ft (6 m) (GD Models)
No. 14
21 to 100 ft (6 to 30 m) (GD Models)
No. 12
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
RHC-14
No. 18 For Any Length
*AWG − American Wire Gauge
 2002 MILLER Electric Mfg. Co.
3.
Adjusting Amperage Or Voltage
. On
some welding power
sources, the front panel output
control setting does not matter
and the Remote Hand Control
adjusts the full range of the
welding power source output.
Example Of Remote Amperage Control Without Output (Contactor) Control
Min
(40 A)
Set Switch
Set Control
Max
(200 A)
Adjust Remote Amperage
In Example: Min = 40 A In Range B,
Max = 200 A In Range B
Output = 120 A (50% of 40 to 200)
Example Of Remote Amperage Control With Output (Contactor) Control
Min
(5 A)
Max
(200 A)
In Example: Min = 5 A
Max = 200 A
Output = 200 A (100% of 5 to 200)
Set Switches
Set Control
Place switch in On position for open-circuit
voltage. When switch is in Off position no
output is present.
Ref. ST-122 023-A / Ref. ST-141 127-A / ST-039 411-D / Ref. ST-159 059 / Ref. ST-130 214-A
OM-823 Page 2
4.
Routine Maintenance
Y Turn Off all power before maintaining.
3 Months
Everyday
Replace
Unreadable
Labels
Replace
Cracked
Parts
Move Control From
Min. To Max.
Cord(s)
5.
Troubleshooting
Trouble
No amperage or voltage control.
Remedy
Set switches and controls on welding power source or generator (see Section 3*).
Check weld output on welding power source or generator.
Secure cord connections or replace cords, if necessary.
No output (contactor) control.
Remote Hand Control switch in wrong position or control not so equipped.
Check switch settings and weld output on welding power source or generator.
Secure cord connections or replace cords, if necessary.
*See welding power source or generator Owner’s Manual.
6.
Circuit Diagrams
SA-150 670-B
RHC-3
SA-094 231-B
RHC-3-GD34A
210 458-A
RHC-3 (100 ft)
SA-053 656-A
RHC-14
OM-823 Page 3
7.
Parts List
Item
No.
Dia.
Mkgs.
Part
No.
Quantity
Model
RHC- RHC- RHC-3 RHC-3
3
14
GD34A (100 ft)
Description
Figure 7-1. Complete Assembly
. . . 1 . . . . R1 . . . . . 030 653
. . . 1 . . . . R1 . . . . . 035 897
. . . 1 . . . . R1 . . . . . 605 960
. . . 2 . . . . . . . . . . . . . 085 220
. . . 3 . . . . . . . . . . . . +021 475
. . . 3 . . . . . . . . . . . . +014 417
. . . 4 . . . . . . . . . . . . . 217 193
. . . 4 . . . . . . . . . . . . . 109 974
. . . 5 . . . PLG1 . . . 605 797
. . . 5 . . . PLG1 . . . 144 310
. . . . . . . . . . . . . . . . . . . 134 732
. . . . . . . . . . . . . . . . . . . 143 922
. . . 5 . . . PLG1 . . . 032 898
. . . 6 . . . . . . . . . . . . . 217 028
. . . 6 . . . . . . . . . . . . . 217 029
. . . . . . . . . . . . . . . . . . . 217 030
. . . 7 . . . . . . . . . . . . . 106 945
. . . 7 . . . . . . . . . . . . . 175 284
. . . 7 . . . . . . . . . . . . . 600 349
. . . 7 . . . . . . . . . . . . . 600 795
. . . 8 . . . . . . . . . . . . . 186 019
. . . 8 . . . . . . . . . . . . . 210 459
. . . 9 . . . . . . . . . . . . . 097 926
. . . 9 . . . . . . . . . . . . . 097 922
. . . 9 . . . . . . . . . . . . . 148 723
. . . 10 . . . . . . . . . . . . . 148 719
. . . 10 . . . . . . . . . . . . . 130 214
. . . 10 . . . . . . . . . . . . . 148 717
. . . . . . . . . . S1 . . . . . . 011 609
. . RHEOSTAT, WW 150W 15 ohm . . . . . . . . . . . . . . 1 . . . . . . . . . . . . . . . . . . 1
. . POTENTIOMETER, C sltd sft 1/T 2W 1K ohm . . . . . . . . 1
. . RHEOSTAT, WW 300W 34 ohm . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
. . LABEL, caution electric circuit . . . . . . . . . . . . . . . . 1 . . . . 1 . . . . 1 . . . . . 1
. . WRAPPER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 . . . . . . . . . . . 1 . . . . . 1
. . WRAPPER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
. . CASE SECTION, base/front/rear . . . . . . . . . . . . . 1 . . . . . . . . . . . 1 . . . . . 1
. . CASE SECTION, base/front/rear . . . . . . . . . . . . . . . . . . . . 1
. . PLUG, twlk 3P3W 20A 125V . . . . . . . . . . . . . . . . . 1 . . . . . . . . . . . . . . . . . . 1
. . HOUSING PLUG & PINS, (consisting of) . . . . . . . . . . . . . 1
. . . . TERMINAL, male 1 pin 24-20 wire . . . . . . . . . . . . . . . . 14
. . . . CLAMP, cable strain relief sz 17 & 20 . . . . . . . . . . . . . . . 1
. . PLUG, twlk grd 2P3W 15A 125V . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
. . BUSHING, strain relief . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 . . . . . 1
. . BUSHING, strain relief . . . . . . . . . . . . . . . . . . . . . . 1
. . NUT, locking strain relief 1/2 in npt .270 thick . . . 1 . . . . . . . . . . . 1 . . . . . 1
. . CABLE, pwr 20ft 16ga 3/c . . . . . . . . . . . . . . . . . . . 1
. . CABLE, pwr 20ga 5/c (order by ft) . . . . . . . . . . . . . . . . . . 20ft
. . CABLE, port No.14 3/c (order by ft) . . . . . . . . . . . . . . . . . . . . . . . . 20ft
. . CABLE, port No.12 3/c (order by ft) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100ft
. . LABEL, model/stock number . . . . . . . . . . . . . . . . . 1
. . LABEL, model/stock number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
. . KNOB, pointer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 . . . . . . . . . . . . . . . . . . 1
. . KNOB, pointer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
. . KNOB, pointer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
. . NAMEPLATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 . . . . . . . . . . . . . . . . . . 1
. . NAMEPLATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
. . NAMEPLATE, RHC-3GD 34A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
. . SWITCH, tgl SPDT 15A 125VAC . . . . . . . . . . . . . . . . . . . . 1
3
1
2
10
4
9
8
7
6
5
ST-141 128-A
Figure 7-1. Complete Assembly (RHC-3 Illustrated)
+When ordering a component originally displaying a precautionary label, the label should also be ordered.
BE SURE TO PROVIDE MODEL AND STYLE NUMBER WHEN ORDERING REPLACEMENT PARTS.
OM-823 Page 4
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