Specifications

156 5975 Series MSD Troubleshooting and Maintenance Manual
4 General Maintenance
To reinstall the GC/MSD interface heater and sensor
Materials needed
• GC/MSD interface heater assembly (G1099-60107)
• Heater sleeve (G1099-20210); replace the old sleeve if it is damaged
• Screwdriver, Torx T-15 (8710-1622)
• Hex driver, 1.5 mm (8710-1570)
Procedure
1 Slide the new heater and temperature sensor into the heater sleeve
(Figure 28).
2 Reinstall the setscrew.
3 Slide the heater sleeve onto the GC/MSD interface. Align the heater sleeve
so the screws are on top. Tighten the screws evenly.
4 Slide the insulation onto the GC/MSD interface.
5 Reinstall the GC/MSD interface cover. Make sure the wires from the heater
and sensor pass through the cutout in the interface cover.
6 Reconnect the MSD to the GC. See page 105.
7 Reconnect the GC/MSD interface cable to the GC. Reinstall the capillary
column.
8 Pump down the MSD.
9 Turn on the GC. Enter appropriate temperature setpoints for the GC/MSD
interface and GC oven.
CAUTION
There is a shallow groove along the inner surface of the insulation. This groove must
line up with the heads of the screws in the heater sleeve. If it does not, you can crack
or otherwise damage the insulation.