Installation
Spirit200a User’s Manual Rev J
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3-14
Torch Head Connection
Perform the following steps to connect the torch head to the torch base.
1. Each time the torch head is connected to the torch base, use a cotton swab to
apply a small amount of o-ring lubricant on each of the seven o-rings on the
top of the torch head.
Reminder: do not use an excessive amount of o-
ring lubricant.
2. Align the indicator on the torch head (small circle) with the one on the torch
base (slot).
3. Apply enough upward force to engage the threads while tightening the
attachment ring. Turn the attachment ring to the LEFT to tighten.
4. Keep tightening the attachment ring until it stops. As shown below, the
attachment ring will NOT cover the o-ring. This is only a visual indicator; no
seal is created. However, there should be no gap between the attachment
ring and the o-ring.
During the tightening process (after the initial install) a small amount of
coolant will collect in the torch head. It is normal for this coolant to discharge
between the o-ring on the torch base and the attachment ring while the
system is being pressurized. If coolant continues to discharge after the
system is pressurized, turn off the plasma power supply, remove the torch
head and inspect the o-rings for damage.
CORRECT
INCORRECT!
Correct
There is no
gap between
o-ring and
attachment
ring
Incorrect!
Gap is visible
between
o-ring and
attachment
ring
O-ring
O-ring
