Servicing
Fuse Replacement
Thermo Electron Corporation Model 42i Low Source Instruction Manual 7-39
5. Install the cover.
Fuse Replacement Use the following procedure to replace the fuse.
Equipment Required:
Replacement fuses:
250VAC, 4 Amp, SlowBlow (for 100VAC and 110VAC models)
250VAC, 2 Amp, SlowBlow (for 220-240VAC models)
1. Turn instrument OFF and unplug the power cord.
2. Remove fuse drawer, located on the AC power connector.
3. If either fuse is blown, replace both fuses.
4. Insert fuse drawer and reconnect power cord.
Scrubber
Replacement
Use the following procedure to replace the silica scrubber or ammonia
scrubber (Figure 7-19).
Equipment Required:
Silica scrubber or Ammonia scrubber
1. Turn instrument OFF, unplug the power cord, and remove the cover.
2. Unscrew the Teflon tubing at both ends of the scrubber.
3. Pull the scrubber off the mounting clips.
Equipment Damage Some internal components can be damaged by small
amounts of static electricity. A properly grounded antistatic wrist strap must
be worn while handling any internal component.