June 28, 2016, 715003956 Rev. C
Page 25
3 Maintenance Procedures
This chapter provides the maintenance guidelines and procedures necessary to maintain the
instrument’s performance.
Keep to a maintenance schedule, and perform maintenance as required and described in this
chapter.
3.1 Maintenance schedule
The following table lists periodic maintenance schedules that ensure optimum instrument
performance.
The maintenance frequencies shown apply to instruments that normally receive moderate use.
Table 3–1: Maintenance schedule
Procedure Frequency For information...
Clean the instrument case. As required. See page 37.
Empty the exhaust trap bottle in the
instrument exhaust line.
Check daily, empty as
required.
See page 47.
Empty the liquid trap bottle in the
backing pump exhaust line.
Check daily, empty as
required.
See page 48.
Gas ballast the rotary backing pump.
(Performance QDa only)
ESI – weekly. See page 51.
Inspect and adjust the rotary backing
pump’s oil level.
(Performance QDa only)
Weekly. See page 48.
Change the rotary backing pump oil.
(Performance QDa only)
Annually. See page 48.
Clean the source components. When sensitivity decreases
to unacceptable levels.
See page 35.
Replace the probe. When sensitivity decreases
to unacceptable levels.
See page 28.
Replace the ion block heater
cartridge.
If the heater fails to heat
when the instrument is
pumped down (evacuated).
This task must be
performed by a Waters
service engineer.
See Waters contact
information on page iv.
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