Heyer Modular+ - Removing the Pressure Gauges; Removing the Module 2 Circuit Board Set; Removing Module1 Circuit Board Set; Removing the Power Supply Module

Maintenance and Calibration
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3.6.11 Removing the pressure gauges
1. Remove the Gas Block Module
2. Remove the metal compression fittings from the gauge.
3. Remove the gauges from the front panel enclosure.
4. Reinstall in reverse order
5. Connect gas supplies at each gauge. Observe and test compression fittings for leaks.
3.6.12 Removing the Module 2 Circuit Board Set
1. Disconnect AC power.
2. Remove the cables connecting the Module 2 circuit boards to the rest of the Modular
+
.
3. Remove the three nuts holding the Modular to the enclosure.
4. Remove the Module 2 circuit as a module.
5. Reinstall in the reverse order.
3.6.13 Removing Module1 Circuit Board Set
1. Remove the Module 2 circuit board set.
2. Remove the cables connecting the Module 1 circuit board to the rest of the Modular
+
.
3. Remove the screws holding the Module 1 to the front plate of the enclosure.
4. Remove the Module 1 circuit boards as a module
5. Reinstall in the reverse order.
3.6.14 Removing the Power Supply Module
1. Disconnect AC power
2. Remove the protection cover of the power supply module.
3. Remove cables connecting the power supply module to the rest of the Modular
+
.
4. Remove the screws holding the board/module to the access panel.
5. Remove the power supply as a module.
6. Reinstall in reverse order.