Tweco N7500 - Manual (Page 21)

Manual 89250890 3-5 SYSTEM COMPONENT DESCRIPTION
SYSTEM COMPONENT DESCRIPTION N7500
Item Fitting Function
1 Motor
This motor feeds the electrode away from and towards the work. The
Motor’s action is controlled by the Pendant settings.
2 Motor Cable
This Motor Cable end is connected to the Control Box via a cable as-
sembly that comes in 3, 15, 25, or 50 foot lengths. See “9.07 Motor
Cable Assembly” on page 9-4 for part numbers.
3
DC Power Cable
Busbar
This is the connection point on the Torch Head for the DC power cables
from the Control Box.
4 Air Inlet
Air is fed into a 3/8” NPT fitting on the Torch Head using an air supply
line from the Control Box.
5 Air Plenum
This housing circulates air around electrode housing before releasing
in a directed spray to remove gouging slag.
6
Electrode Release
Lever
This lever is used to open the Motor Feed assembly allowing the opera-
tor to manually remove or replace an Electrode.
7 Electrode Size
The guide inside helps the insertion of the electrode through the Torch
Head.
8
Carriage Mounting
Fixture
The mounting bracket that comes with the Torch Head allows it to
fasten to a vertical adjustment assembly which is either mounted on a
travel system or stationary fixture.
9 Air Plenum Shield This metal shield protects the Air Plenum housing from slag splash
back.
10 Torch Head Shield This metal shield protects the motor and housing from slag splash
back.
Table 3-8: Torch Head Features