CIGWELD Transmig 165ST, Руководство по обслуживанию

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SERVICE MANUAL
Transmig 165
ST
Transmig 165
ST
SERVICE MANUAL
Transmig 165
ST
Transmig 165
ST
MIG (GMAW) WELDING 5-8 Manual 0-5442
5.08 Wire Reel Brake
The wire reel hub incorporates a friction brake which is adjusted during manufacture for optimum breaking.
If it is considered necessary, adjustment can be made by turning the large nut inside the open end of the
hub clockwise to tighten the brake. Correct adjustment will result in the wire reel circumference continuing
no further than 10-20mm after release of the trigger. The electrode wire should be slack without becoming
dislodged from wire spool.
CAUTION
Overtension of brake will cause rapid wear of mechanical WIREFEED parts, overheating of electrical
componentry and possibly an increased incidence of electrode wire Burnback into contact tip.
Wire Reel Brake Adjustment Nut
Art # A-12909
Figure 5-10: Wire Reel Brake
5.09 Setup for MIG (GMAW) Welding with Gas Shielded Mig Wire
A. Fit the MIG Torch to the Power Source. (Refer to section 5.02 Attaching the Tweco Fusion MIG Torch).
B. Connect the Mig torch polarity lead to the positive welding terminal (+). If in doubt, consult the electrode
wire manufacturer. Welding current flows from the Power Source via Dinse terminals. It is essential,
however, that the male plug is inserted and turned securely to achieve a sound electrical connection.
C. Switch the Power Source On/Off switch located on the rear of the Power Source to the On position and
ensure the Power indicator on the Front Panel is illuminated. Set the MIG Torch trigger switch operation
either 2T or 4T mode. Refer to section 4.02.10.
D. Select MIG mode with the process selection control. (refer to Section 4.02.11 for further information).
E. Fit the correct Feed Roll for the Gas Shielded MIG wire being used. Refer to section 2.11 Options and
Accessories for Feed Roll types and Part Numbers
F. Place the MIG wire spool onto the spool holder. Refer to sections 5.03 for 100mm diameter spools or 5.04
for 200mm diameter spools.
G. Feed wire through the wire drive mechanism. Refer to section 5.05.
H. Feed the wire through the MIG torch by depressing the MIG torch triggered. DO NOT let the wire touch
any conductive material or your skin as the wire is electrical HOT when the torch triggered is depressed.
- Secondary voltage and the feed rollers run at constant run-in speed for about 3 seconds.
- After the 3 seconds, the secondary voltage is still present but the feed rollers run the wire speed you set
on the Wirespeed control.
- After a further 20 seconds, the feed rollers stop and the secondary voltage turns off. This is built into the
design for safety reasons.