Tweco A80 CutMaster - Manual (Page 101)

CUTMASTER A80
Manual 0-4985 SERVICE 5T-1
SECTION 5 TORCH:
SERVICE
5T.01 General Maintenance
NOTE
Refer to Previous "Section 5 System" for common
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 initiation
and the overall cut quality of the torch.
WARNING
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.
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 con-
tact 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 lubri-
cant (Catalog # 8-4025) to the o-rings on a weekly basis.
Torch Head O-Ring
ATC O-Ring
NOTE
DO NOT use other lubricants or grease, they may
not be designed to operate within high tempera-
tures or may contain “unknown elements” 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.