Tweco SL100 RPT - Manual (Page 4)

June 6, 2003 4 Manual 0-2937
2. Fit the starter cartridge and desired tip onto the elec-
trode.
NOTE
Refer to the consumables selection chart for the
proper combination of torch parts, including shield
retainers and cups.
3. Fit the shield cup onto the torch head.
4. Hand tighten the shield cup until it is seated on the
torch head. Do not use tools to tighten the cup. If
resistance is felt when installing the cup, check the
threads before proceeding.
NOTE
When operating the torch in a normal condition, a
small amount of gas vents through the gap between
the shield cup and torch handle. Do not attempt to
over tighten the shield cup as irreparable damage
to internal components may result.
Operating Gas Pressure
Set gas pressure at the power supply regulator according
to the following chart. This chart is a guide only; adjust
as necessary for best performance.
Tip Up to 25' / 7.6 m 50' / 15.2 m
30A 55 psi / 3.8 bar 60 psi / 4.1 bar
40A 55 psi / 3.8 bar 60 psi / 4.1 bar
50/55A 60 psi / 4.1 bar 65 psi / 4.5 bar
60A 60 psi / 4.1 bar 65 psi / 4.5 bar
70A 60 psi / 4.1 bar 65 psi / 4.5 bar
80A 60 psi / 4.1 bar 65 psi / 4.5 bar
90 / 100 A 65 psi / 4.5 bar 70 psi / 5.2 bar
Total Leads Length
SL100 Gas Pressure Settings
Sequence of Operation
1. Turn on power and adjust gas pressure on the Power
Supply pressure gauge. Refer to the chart for opti-
mum pressure settings for the combination of torch
consumables and total leads lengths (including exten-
sions) in use.
2. Adjust current output on the Power Supply to match
the selected tip and attach the work clamp firmly to
the work or to the cutting table.
WARNING
Maximum current for this torch is 100 Amps. Op-
eration of this torch at higher outputs may dam-
age the torch, the leads, the components, or the
Power Supply. DO NOT operate the torch at more
than 100 Amps.
NOTE
The gas preflow and postflow are characteristics of
the power supply and not a function of the torch.
3. Recommended standoff distance is 3/16" / 4.7 mm.
4. Follow normal recommended cutting practices as pro-
vided in the power supply operator's manual.
NOTE
When the shield cup is properly installed, there is
a slight gap between the shield cup and the torch
handle. Gas vents through this gap as part of nor-
mal operation. Do not attempt to force the shield
cup to close this gap. Forcing the shield cup against
the torch head or torch handle can damage compo-
nents.
Cutting With Machine Torch
The machine torch can be activated by remote control pen-
dant or by a remote interface device such as CNC.
Common Operating Faults
The following are the more common cutting faults and
the possible causes:
1. Insufficient Penetration
a. Cutting speed too fast
b. Torch tilted too much
c. Metal too thick
d. Worn torch parts
e. Cutting current too low
f. Non - Genuine Thermal Dynamics Parts