Cleaning The Probe Heater; Replacing The Detent Screw Insulator - Thermo Scientific Surveyor MSQ Plus Hardware Manual

5
Routine and Preventive Maintenance
Maintaining the Probe Heater

Cleaning the Probe Heater

Replacing the Detent Screw Insulator

76 Surveyor MSQ Plus Hardware Manual
To clean the probe heater
Clean the inside of the heater tube with a cotton swab soaked in [50:50] methanol/water. See
Figure 61.
Use the parts supplied in the Probe Heater Repair Kit (P/N 60111-62010) to repair the
probe. See Figure 86 on page
To replace a broken detent screw insulator
1. Disassemble the detent screw assembly:
a. Using a flat-blade screwdriver, loosen and remove the spring screw.
Figure 59. View of the slot in the top of the spring screw
Spring screw
Spring cup
Probe screw sleeve
b. Remove the spring from the spring cup and set the spring aside.
Because the spring is reusable, it is not provided in the repair kit.
c. Pull the probe screw sleeve off the detent screw insulator.
d. Pull the detent screw insulator out the underside of the probe heater body. See
Figure 60.
117.
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