North SELEKT BRD, Operating Manual

Page: 15 / 32

REPLACING WORN CONSUMABLE PARTS
May 06, 2020 Page 15 User Manual No: OM-101A EN
6.04
Changing TWE Torch Liner
TWE Model Number Diffuser Part No. New Liner Trim Length
ST1 52 29 mm
ST2
52 33.5 mm
52FN 27 mm
ST4 54A 11.9 mm
ST5 55 11.8 mm
1 Remove nozzle, contact tip and gas diffuser then lay Torch cable
straight.
2 TWE Style: Socket Head Screw – Remove using an appropriate Allen
Key (Hex Key) in a counter clockwise direction.
3 Euro Style: Liner Nut – Remove use an appropriate wrench in a
counter clockwise direction.
4 Liner TWE Style Power Pin : Remove by pulling the liner end out of
the TWE Power Pin Connecter Block
Liner TWE Euro Style Power Pin : Remove by pulling the liner end out
of the Euro Power Pin Connecter Block.
5 With the Torch laying straight, insert new liner into TWE Power Pin
Connecter Block and feed 50mm at a time into the Torch using a
twisting motion to stop the liner from kinking.
6 TWE Euro Style Liner – Screw Liner Nut into Pin Connecter Block to
secure the Liner.
TWE Style Liner: Socket Head Screw – Screw, using an appropriate
Allen Key (Hex Key), in a clockwise direction to secure Liner.
7 New Liner Trim Length – Trim liner stick-out past swan neck, refer to
table. Remove all burrs from end of liner then replace gas diffuser,
contact tip and nozzle.
6.05
Changing BRD Torch Liner
1 Remove nozzle, contact tip and gas diffuser then lay Torch cable
straight.
2 BRD Euro Style Liner – Unscrew Liner from Pin Connecter Block then
remove Liner by pulling the liner end out of the BRD Euro Power Pin
Connecter Block.
3 BRD Style Liner – Unscrew Nipple for Miller Connection from Pin
Connector Block then remove Liner by pulling the liner end out of the
BRD Style Power Pin Connecter Block.
4 With the Torch laying straight, insert new liner into Power Pin Con-
necter Block and feed 50mm at a time into the Torch using a twisting
motion to stop the liner from kinking.
5 BRD Euro Style Liner – Screw Liner into Pin Connecter Block to se-
cure the Liner.
BRD Style Liner – Screw Nipple for Miller Connection into Pin Con-
nector Block to secure the Liner.
6 New Liner Trim Length – Trim liner stick-out past swan neck, refer to
table. Remove all burrs from end of liner then replace gas diffuser,
contact tip and nozzle.
SECTION 7 –
TROUBLESHOOTING
NOTE: Weld quality is dependent on the correct consumables, proper Torch position/angles , and Product maintenance.
Description Possible Cause Corrective Action
1. Welding wire does not
feed A The welding wire is jammed before the contact tip
due to the welding wire not being straight.
B The Torch and Torch Cable Assembly are not
equipped correctly for the wire diameter and/or wire
material.
C The Liner is not correctly inserted into the Torch Ca-
ble Assembly.
D The contact tip is blocked with wire debris OR the
Liner is worn / filled with dirt and debris.
E Wrong size liner.
F Worn or broken Torch Trigger Switch
G Wrong size/type feed rolls for welding wire or worn
feed rolls in MIG/MAG equipment.
A Remove welding wire from Torch, cut off end,
and remove burr then straighten end. Feed weld-
ing wire into the Torch.
B Check Liner (Torch Cable Assembly and Torch
Neck) then contact tip size.
C Make sure that the Liner is touching the contact
tip.
D Replace the contact tip and/or Liner, blow out
Torch Neck, Liner conduit with clean, dried com-
pressed air.
E Change liner to correct size/type for welding wire
F Test, if not working then replace.
G Change feed rolls to correct size/type for welding
wire or change worn feed rolls.
2. Torch is getting ex-
tremely hot A Contact tip or tip holder are not tightened properly.
B Cooling system is not cooling effectively.
C Cooling system is not correctly connected.
D Torch Cable connections loose or defective.
A Make tighter using a suitable tool.
B Check then correct coolant flow, fluid level, or
cleanliness.
C Check connections (coolant inlet and return).
D Make Torch Cable / Swan Neck connections
tighter.