Maintenance Schedule & Procedures
3–2 www.zoll.com 906-0731-04-01 Rev. C
731 Series Ventilators Maintenance Schedule
Maintenance Schedule
Year After Initial Purchase of Ventilator *
1 2 3 4 5 6 7 8
Replace the high pressure
oxygen inlet and
compressor foam and disk
filters
X X X X X X X X
Perform a periodic
maintenance check using
the RCS tool.
X X X X X X X X
Replace the main battery
X X
Replace the Real Time
Clock (RTC) battery
X X
Inspect and replace if
necessary any internal
tubing, gaskets, O-Rings,
that show signs of wear
X X
* Ventilators with Stockpile configurations may require annual maintenance to be conducted every other
year if the total run time of the ventilator is less than 5 hours for Stockpile I configuration, or less than 50
hours for Stockpile II configuration. Stockpile configurations do not impact or change the 4 year
maintenance schedule.
Table 1