Thermal Dynamics A80 CUTMASTER, Operating Manual, Page: 107 / 130

A80
0-4985 SERVICE
5T-1
SECTION 5 TORCH:
SERVICE
5T.01 General Maintenance
NOTE!
Refer to Previous "Section 5 System" for com-
mon and fault indicator descriptions.
Cleaning 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 buildup can affect the pilot arc initia-
tion and the overall cut quality of the torch.
WARNING
Disconnect primary power to the system be-
fore 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 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.
!! CAUTION
Dry the torch thoroughly before reinstalling.
O-Ring Lubrication
An o-ring on the Torch Head and ATC Male Connector
requires lubrication on a scheduled basis. This will allow
the o-rings to remain pliable and provide a proper seal.
The o-rings will dry out, becoming hard and cracked if
the lubricant is not used on a regular basis. This can
lead to potential performance problems.
It is recommended to apply a very light film of o-ring
lubricant (Catalog # 8-4025) to the o-rings on a weekly
basis.
Upper Groove
with Vent Holes
Must Remain Open
Threads
Upper O-Ring
in Correct Groove
Lower O-Ring
Art # A-03725
Torch Head O-Ring
ATC Male Connector
Art #A-03791_AB
Gas Fitting
O-Ring
#8-0525
ATC O-Ring
NOTE!
DO NOT
use other lubricants or grease, they
may not be designed to operate within high
temperatures or may contain “unknown ele-
ments” that may react with the atmosphere.
This reaction can leave contaminants inside
the torch. Either of these conditions can
lead to inconsistent performance or poor
parts life.