6
POWER SUPPLY
The DC III drive operates on 120 volt, (42VAC), (240VAC), 50/60 Hz. The
Circuit
Breaker (O)
protects the unit against overload or electrical faults,
CAUTION: IF THE CIRCUIT BREAKER OPENS, FIND AND CORRECT THE
CAUSE OF FAILURE BEFORE RESETTING.
TORCH
The
Torchholder (P)
will accept any standard American machine torch (barrel
diameter 1-3/8" (34 mm) with 1/4"-square (6 mm) 32-pitch rack). The 32-pitch
pinion is standard. Specify a 24-pitch pinion if desired. The
Short Hose As-
sembly (Q)
connects the torch to the
Quick-acting Manifold Assembly (R)
.
The supply hoses are to be connected to the open side of the quick-acting
manifold assembly.
Proper torch operation is essential to quality cuts. We suggest that you follow
the torch manufacturers’ instructions carefully, being sure to use a clean tip of
the proper size.
MAGNETIC SUPPORTS
Several Types of magnetic supports are available for use with the CIR-O to
stabilize the machine as listed below:
(S) Outrigger Support Assemblies
; CON-1010 - used in multiples of two
or four to stabilize CIR-O on plate, cylinders or heads where two legs must
be longer than the other two,
(T) Magnet Foot Assemblies
; CIR-9000 - may be used in sets of four or
more to position CIR-O on vertical or out-of-position, flat surfaces.
(U) Leg and Magnet Foot Assemblies
; CON-1040 (four required) - may be
used for flat or irregular surfaces.
(V) Offset Leg and Magnet Assemblies
; CIR-9002 (four required) - use with
a bevel cutting head or adjustable tip adaptor - to eliminate the “blind” spot
under the ring.
SETUP
A center-punch mark and a radius mark are the only layout required. The
Center
Pin Assembly (Z)
extends below the CIR-O base and is placed in the center-
punch mark. The CIR-O is then eased down to the work on the center pin. This
movement locates the entire machine “on center.” The
Rack (W)
with
Torch-
holder (P)
is then positioned over the radius mark.
OPERATION
In order to provide a smooth start, it is recommended that the starting hole be
drilled or pierced inside or outside the radius mark. Center the torch tip over the
radius mark and secure the
Rack Stop (X
) firmly against the
Post Assembly
(Y)
. [The side of the post assembly to which the rack stop is positioned depends
upon whether the material inside or outside the cut is scrap]. Begin the cut from
the starting hole and, after carriage travel is begun, move the
Torch Rack (W
)
slowly against the
Rack Stop (X)
. This action “feathers-in” the cut eliminating
a notch.
OPERATING INSTRUCTIONS (CONT’D.)
19
CIR-O SPEED RANGE CHART
Capacities and Speed Ranges
3 .4-8 75 10-210
6 .8-16 150 20-420
10 .4-28 250 35-700
14 2-39 350 50-1000
26 3.5-70 650 90-1805
30
4-80 750 105-2100
34 4.5-92 850 120-2400
38 5.2-105 950 130-2640
42 5.7-115 1050 150-3000
46 6.3-125 1140 160-3200
50 6.8-135 1250 175-3500
56 7.6-155 1420 200-4000
3 .3-5 75 7-140
6 .6-11 150 14-280
10 .9-18 250 23-460
14 1.3-26 350 32-650
18 1.7-33 450 42-840
22 2-40 550 50-1000
34 3.2-63 850 80-1600
38 3.5-70 950 87-1760
42 3.9-78 1050 97-1950
46 4.3-85 1150 105-2130
50 4.6-93 1250 115-2300
54 5-100 1350 125-2500
58 5.4-110 1450 135-2700
64 6-120 1625 150-3000
3 .2-4 75 5-100
6 .4-8 150 10-210
10 .7-13 250 17-350
14 1-19 350 42-500
18 1.3-25 450 32-640
22 1.5-30 550 38-760
26 1.8-37 650 45-900
30 2-41 750 52-1050
42 2.9-57 1050 73-1458
46 3.2-63 1150 80-1600
50 3.4-68 1250 87-1750
54 3.7-75 1350 94-1900
58
4-80 1450 100-2000
62 4.3-85 1550 105-2150
66 4.5-90 1650 115-2300
72 4.9-100 1825 125-2500
DIAMETER
IPM
INCH
IPM
DIAMETER
INCH
CIR-III
INSIDE RING
CIR-IV
CIR-V
OUTSIDE
RING
INSIDE RING
OUTSIDE
RING
INSIDE RING
OUTSIDE
RING
