TM8400B-L-00
1 November 2004
10. MAINTENANCE
10.1. INTRODUCTION
The maintenance procedures described in this section can be done with the instrument installed
in the laboratory.
Other than for external cleaning, the prescribed maintenance requires that the front panel be
opened or chassis withdrawn, or rear panel be removed.
WARNING
Disconnect power cord before attempting any maintenance inside cabinet except as
required for operational tests.
10.2. GENERAL INSPECTION
Periodically examine instrument interior for loose tubing clamps, loose wiring connectors or
connections, or spills. Include bath temperature control check to ensure the two heater lamps
work. When instrument is used on a ship, this check should be made daily.
10.3. GENERAL CLEANING
Wipe instrument case with soft lint-free wiper, using mild detergent to remove grease. Due to the
corrosiveness of sample water, wipe spillage and neutralize corrosive surfaces as soon as spillage
is detected.
10.4. OPENING THE CABINET
The opening is a two-stage operation; one to withdraw the chassis and one to hinge out the front
panel. This allows access to interior for inspection, testing and certain parts replacement.
CAUTION
Be careful when opening front panel that chassis does not roll out unexpectedly. If
intending to withdraw chassis ensure there is sufficient bench space in front and that its
weight is supported at all times.
Open front panel and withdraw chassis as follows:
STEP 1. Remove four front panel screws.
STEP 2. Remove three screws beside bottle holder.
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