LC Packings Probot 161403, User Manual

Page: 76 / 118

Maintenance and Troubleshooting
3-8
D960R3
User’s Manual Probot
3.3.6 Replacing the Standard Needle
To replace the hollow stainless steel needle (P/N 161375):
a) Remove the fused silica capillary from the needle tee and hollow needle.
b) Remove the needle cover to get access to the needle tee.
c) Loosen the screw the ground cable (item 1; FIGURE 3-8) and remove the
ground cable.
1
2
3
FIGURE 3-8 The Pen Light and the Needle Tee
d) Unscrew the lower fingertight nut and remove the needle from the needle tee
(item 2; FIGURE 3-8).
e) When re-installing the needle, push the needle all the way into the needle tee
while tighten the fingertight nut. Make certain that the needle tip extends the
stainless steel needle by approximately 1 mm.
f) Re-install the ground cable, the needle cover and the fused silica capillary.
3.3.7 Replacing the Light Bulb of the Pen Light
To replace the light bulb (P/N 161402) of the pen light:
a) Pull the lamp holder out of the pen light housing (item 3; FIGURE 3-8).
b) Replace the light bulb and re-install the holder.