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line valve to the dispenser or back out the air regulator
adjusting screw. Vent the dispenser by opening the pet-
cock on the cover.
IV. MAINTENANCE
To prevent fires do not use common oil or grease
on this equipment. Only use lubricants specifically
indicated in the text and illustrations.
A. GENERAL
Equipment should be inspected at frequent intervals
by a competent operator. Use only standard parts listed
herein. For repairs or replacement other than those
mentioned in these instructions, return the equipment
to ESAB Remanufacturing Center, 411 S. Ebenezer
Road, Florence, SC 29501.
B. CLEANING COMMERCIAL SHUTOFF VALVES
TO OXYGEN STANDARDS
Disassemble the valve. Scrub or immerse the parts in
a hot solution of sodium carbonate or trisodium phos-
phate mixed in the proportions of 1 lb. to 3 gallons of
water. Note that 1 lb. of soda ash or 2-3/4 lb. of sal
Nozzle
Steel
Thickness, Oxygen
Size
Part No. in.
30
08Z78
24 - 26
40
08Z80
28 - 30
50
08Z82
35 - 40
* Read from gauge mounted on torch.
**Preheat oxygen flow is given as 80% of acetylene flow. This oxygen/acetylene ratio produces an 18 in. acetylene feather which is used for
most heavy cutting operations.
Nozzle
Steel
Thickness, Oxygen
Size
Part No. in.
30
460064
24 - 26
40
596578
28 - 30
50
5470081 35 - 40
60
5470082 45 - 50
70
5490062 50 - 60
* Read from gauge mounted on torch.
**Preheat oxygen flow is given as 50% of natural gas flow for a 1.5 oxygen to 1.0 natural gas ratio. This oxygen/natural gas ratio produces a long
inner cone flame length which is used for most heavy cutting operations.
1701 Series Acetylene Nozzles
Gas Pressure, psig
Cutting
Preheat Speed,
*
Acetylene
Oxygen
22
10
20
18
10
20
12
10
20
1702 Series Natural Gas Nozzles
Gas Pressure, psig
Cutting
Natural
Preheat Speed,
*
Gas
Oxygen
22
7 - 15
11 - 25
18
11 - 16
18 - 25
12
12 - 17
20 - 26
7
14 - 18
25 - 30
6
16 - 24
30 - 40
soda washing soda may be substituted for the sodium
carbonate. Thoroughly scrub all surfaces of the parts.
If immersion treatment is used, continuously stir the
parts in the solution for at least 10 minutes.
After washing, thoroughly rinse the parts with clear
water. Repack the valve with valve packing approved
for oxygen service.
C. MIXER DISK
If necessary, the torch mixer disk can be removed for
cleaning as follows: Remove the two hex nuts and cap
screws used to bolt the preheat mixer body to the cut-
ting oxygen block. Using a wrench, unscrew the mixer
tube connecting nut. Remove the mixer body and in-
vert it. The mixer disk will then fall out.
To clean the mixer disk center orifice, use a No. 5 drill.
To clean the outer orifices use a No. 51 drill. Other
cleaning tools tend to enlarge or bell-mouth the ori-
fices, and should not be used.
If the mixer disk is distorted or the seating surfaces
marred or scratched, it should be replaced with a new
one. In reassembling the mixer disk and mixer tube in
the torch, make sure that the seating surfaces are
clean.
D. GAUGE
Gas Consumption, cfh
Cutting
Cutting
ipm
Oxygen
Acetylene
2-3-1/2
2160
213
2-3-1/2
3470
272
2-3
4600
330
Gas Consumption, cfh
Cutting
Cutting
Natural
ipm
Oxygen
Gas
2-3-1/2
2160
190 - 380
2-3-1/2
3470
275 - 400
3
4600
380 - 450
2-2-1/2
5450
450 - 525
2-1-1/4
7500
525 - 650
4
Cleaning Drill Size
Preheat
Oxygen
**
Cutting
Preheat
170
19/64"
53
217
"X"
54
264
1/2"
3/64"
Cleaning Drill Size
Preheat
Oxygen
**
Cutting
Preheat
285-570
19/64"
5/64"
410-600
"X"
46
570-675
1/2"
46
675-790
19/32"
45
790-975
11/16"
43
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