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7.3 Torch maintenance
Cleaning the Torch
Even if precautions are taken to use only clean air with a torch, eventually the inside of the torch becomes coated
with residue. This build-up can affect the pilot arc ignition and the overall cut quality of the torch.
CAUTION!
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.
CAUTION!
The inside of the torch should be cleaned with electrical contact cleaner using a cotton swab or soft wet rag. In severe cases,
the torch can be removed from the leads and cleaned more thoroughly by pouring electrical contact cleaner into the torch and
blowing it through with compressed air.
Inspection and replacement of torch consumables
Remove the consumable torch parts as follows:
1.
NOTE!
Slag built up on the shield cup that cannot be removed
may affect the performance of the system.
����
✅
2.
damaged.
3. Remove the tip. Check for excessive wear (indi-
cated by an elongated or oversized orifice). Clean
or replace the tip if necessary.
34
Figure 7.3 - Consumable Parts
Wipe it clean or replace if
Washer
Diffuser
Electrode
Cutting nozzle
Shield Cup
Standoff Guide
✅
Figure 7.4 - Tip wear
4. Check in Torch head if the electrode holder
moves freely in and out. Push the electrode
in approximately 2 mm, release and it should
spring back out. Replace the torch if this does
not work.
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