Heyer Modular+ - Repair Information; Introduction; Warnings and Precautions

Maintenance and Calibration
3 Repair Information
3.1 Introduction
This chapter of the service manual provides the necessary technical information to perform repairs to
the instrument. The most important perquisites for effective troubleshooting are a trough
understanding of the instruments functions, as well as understanding the principals of operation.
3.2 Warnings and precautions
In the event the instrument covers are removed, observe the following warnings and guidelines
3.2.1 Precautions
1. Do not short components leads together
2. The instrument covers must not be removed by anyone other than qualified technical personnel
who have received supplementary instructions regarding maintenance of medical equipment
and/or have equivalent experience in this area.
3.2.2 Warnings
1. This device operates using compressed gas at high pressures. When attaching emergency gas
tanks, always open tank valves slowly, watching the cylinder gauge indicate the tank pressure.
When disconnecting the tanks, always close the valves slowly. Use the Modular
+
flow meters to
bleed down the pressure, watching the cylinder gauge indicating the depleting tank pressure,
before disconnecting the tank from the yoke. Always open and close tank valves fully.
2. This device operates using compressed gas at high pressures from the hospital central supply.
When connecting gas supply lines, attach the hose connection to the machine before connecting
the quick disconnect fitting to the hospital source. Disconnect the supply hose from the hospital
source connection prior to disconnecting it from the Modular
+
gas connection fittings.
3. Whenever flowing anesthetic gases, nitrous oxide, oxygen, or any hospital gas always use the
appropriate agent evacuation system.
4. Never oil or grease any oxygen equipment unless the lubricant used is made and approved for
this kind of service. In general, oils and greases oxidize readily, and in the presence of oxygen
burn violently.