Installation; Connection Of Torch To Plasma System; Connection To The Arc Starter Box - ESAB PT-36 Instruction Manual

sEctIoN 3
3.1

connection of torch to plasma system

Refer to system manual.
DaNgEr
WarNINg

3.1.1 connection to the arc starter Box

The PT-36 has two water cooled power cables which must be connected to the negative output from the power
supply. The right handed 7/16-20 fitting is on the cable supplying coolant to the torch. The left handed 7/16-20
fitting is on the cable returning coolant from the torch.
The ring terminal is used to make the nozzle connection for pilot arc starting. The fast-on connection grounds
the braided shield on the pilot arc cable.
Male fast-on
connection
Electric shock can Kill!
• Disconnect primary power source before making any adjustments.
• Disconnect primary source before doing maintenance on system
components.
• Do not touch front-end torch parts (nozzle, retaining cup, etc.) with-
out turning primary power off.
Radiation hazard. Arc rays can injure eyes and burn skin.
• Wear correct eye and body protection.
• Wear dark safety glasses or goggles with side shields. Refer to following chart for
recommended lens shades for plasma cutting:
arc current
up to 100 amps
100-200 amps
over 400 amps
• Replace glasses/goggles when lenses are pitted or broken
• Warn others in area not to look directly at the arc unless wearing appropriate safety
glasses.
• Prepare cutting area to reduce reflection and transmission of ultraviolet light.
• Install protective screens or curtains to reduce ultraviolet transmission.
Brass nut
Female fast-on connection
power cables (2)
lens shade
shade No. 8
shade No. 10 200-400 amps
shade No. 14
An alternative braided shield connection is provided on the
torch. The female fast-on connection (normally in the arc
starter box) can instead be mated to a male fast-on connec-
tion taped to one of the power cables a few inches before
the end of the torch sleeving. Push the sleeving and large
brass nut towards the head of the torch to reveal this con-
nection. When this connection is made, the shield connec-
tion is grounded through the large brass nut.
143

INstallatIoN

shade No. 12