Alpha Technologies AlphaGen 5.0kW Auxiliary Power Unit - Manual (Page 63)

3. Maintenance
63
031-132-B0-001 Rev. A TM ©2000
NO MATCHES OR OPEN FLAMES:
Use caution whenever working in the area to prevent possible combustion
fuel vapors.
LEAK HAZARD:
Use caution whenever working in the area to prevent and correct any leaks
detected.
Calibration Procedure:
1. On the ECM, perform the following:
Set the ECM Run/Auto/Stop (RAS) switch to the STOP position. Remove
the Allen-head screw located on the "Secondary" or "Demand" Regulator.
3.17 Maxitrol Pre-Regulator Calibration, continued
Connect hose and fitting to
the Secondary Regulator
Secondary Regulator
(removed to show
Manometer access port)
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On the DWYER # 1212, perform the following:
2. Open both ports.
3. Set the scale of “0” between the water lines. Connect the pressure test
hose (see above).
4. Remove the Maxitrol regulator adjustment cover (located in the gas
service box outside of the enclosure).
5. Apply 0.5psi-2psi gas pressure to the gas package.
6. Place the ECM’s RAS switch in the RUN position. The starter will then crank
the engine until the generator starts. (This may take a few seconds to draw
excess air from hoses). When the ECM RAS switch is placed in the RUN
position, the ECM controls the starting of the engine.