Tweco SL100 - Manual (Page 3)

Manual 0-2880 3
WARNINGS
Disconnect primary power to the system before
disassembling the torch or torch leads.
DO NOT touch any internal torch parts while the AC
indicator light of the Power Supply is ON.
The shield cup (or shield cup body and shield cap or de-
flector) holds the tip and starter cartridge in place. Posi-
tion the torch with the shield cup facing upward to keep
these parts from falling out when the cup is removed.
Change the torch parts as follows:
1. Unscrew and remove the shield cup from the torch
head.
Art # A-03417
Electrode
Start Cartridge
Tip
Shield Cup
Assembly
Torch Head
2. Tilt the torch head to remove the tip and starter car-
tridge.
3. Fit the desired starter cartridge and tip onto the elec-
trode.
NOTE
Refer to the consumables selection chart for the
proper combination of torch parts, including shield
cups and caps.
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 the torch handle. Do not attempt
to overtighten the shield cup as irreparable damage
to internal components may result.
Gouging Parts Selection
Select gouging tips according to the desired gouge profile.
Gouging parameters shown are based on a 35° approach
angle.
Gouging Profiles
Output Range Depth Width
Tip A 40 Amps Max. Shallow Narrow
Tip B 40-100 Amps Deep Narrow
Tip C 40-100 Amps Moderate Moderate
Tip D 40-100 Amps Shallow Wide
Operating Gas Pressure
Set gas pressure at the power supply regulator according
to the following charts. These charts are a guide only;
adjust as necessary for best performance.
SL60 Gas Pressure Settings
Leads Length
Tip 20' / 6.1 m 50' / 15.2 m
30A, 40A,
50/55A, 60A
65 psi / 4.5 bar 75 psi / 5.2 bar
SL100 Gas Pressure Settings
Leads Length
Tip Up to 25' / 7.6 m 50' / 15.2 m
30A, 40A,
50/55A, 60A,
70A, 80A
60 psi / 4.1 bar 65 psi / 4.5 bar
90/100A 65 psi / 4.5 bar 70 psi / 5.2 bar
Cutting or Gouging
The torch can be held comfortably in one hand or stead-
ied with two hands. Choose the holding technique that
feels most comfortable and allows good control and
movement.
Sequence of Operation
1. Turn on power and adjust gas pressure on the Power
Supply pressure gauge. Refer to the charts for opti-
mum pressure settings for the combination of torch
tip and total leads lengths (including extensions) in
use.