Metallisation MK 73 - Page 45

Page 45 of 64
Troubleshooting continued:
PROBLEM
CAUSE
REMEDY
The coating
is too coarse
Insufficient air pressure
Check supply and re-adjust regulator
Air Nipple dirty or damaged
Clean or replace Air Nipple
Wire feeding too fast
Slow down wire speed
Air nipple jammed in lighting position
Remove and re-fit Air Nipple, checking that it is
free to move on the Nozzle
Nozzle assembly parts dirty or damaged
Remove and clean, or replace Nozzle
Assembly parts as required
PROBLEM
CAUSE
REMEDY
Wire Sticks
In Nozzle
Assembly
Wire speed too slow
Increase wire speed until wire tip extends for a
distance equal to 3 x the wire diameter, outside
the Air Nipple
Feed roller tension insufficient
Check and adjust the feed roller tension, as in
Section …
Insufficient wire clearance in Nozzle
Clean out Nozzle bore with suitable drill
Dirty or damaged wire
Clean wire with oiled pad or replace with fresh
wire, if the wire surface is badly damaged
Wire scuffing on Start/Stop Wire Guide
Check for wear on rear wire guide and for easy
opening and closing of the rollers
Wire stopped with extinguishing flame
(3/16” Fast – 1281 Nozzle System Only
Always extinguish the flame BEFORE stopping
the wire
Heat Shield Malfunction
Maintain Het Shield
PROBLEM
CAUSE
REMEDY
Melting Air
Nipple
Valve opened too slowly
Light Quicker
Insufficient nozzle air pressure
Check parameter and reset air pressure