Schmidt ACS 1200, Operation And Maintenance Manual

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44 Copyright © 2020 Axxiom Manufacturing, Inc.
7.2.5. If the unit has an electric aftercooler motor, press the “Start” button to begin cooling fan
operation, then skip to step 7.2.8. If the aftercooler has an air motor, open the air motor
on/off ball valve (#13).
7.2.6. Adjust air pressure regulator (#14) to the required pressure. See Section 11.0 for correct air
motor inlet pressure setting. Turn clockwise to increase pressure/motor speed and
counterclockwise to decrease pressure/motor speed.
Do not exceed maximum air motor pressure. Exceeding the air motor operating pressure
can cause system failure. See Section 11.0, Table 2 for air motor operating pressure.
7.2.7. Adjust the lubricator (#15) to the proper flow rate. The lubricator flow rate is adjusted
based upon the air cfm flow rate required for the air motor. Refer to Section 11.0, Table 2
for air flow and drip rate requirement. Turn the socket head screw on top of the lubricator to
adjust flow (clockwise to increase flow, counterclockwise to decrease flow). See Section
5.6.
Failure to lubricate the air motor will result in motor failure. See Section 11.0, Table 2 for
air motor cfm requirements.
Note:
Filter/regulator and lubricator arrangement may vary from what is shown in Figure
7.1(a) and 7.1(b).
7.2.8. Confirm that the aftercooler fan rotation is correct. The airflow should be up through the
radiator (#4). Incorrect air flow indicates the air motor (#5) air supply and exhaust ports are
reversed. On units with electric fan motors electrical changes are required. Consult a
qualified electrician.
7.2.9. Open outlet ball valve(s) (#45) to supply air to the connected equipment (see Figure 6.2).
7.3 AirPrep System Shutdown
7.3.1 Close the aftercooler motor air supply valve (#13). On electric units press the “Stop” button
on the motor starter control box to end cooling fan operation.
7.3.2 Close all the AirPrep System air outlet ball valves (see Figure 6.2).
7.3.3 Turn off the air compressor and/or close the compressor’s outlet valve (see Figure 6.2).
7.3.4 Open drain valve (#3) on the pre-filter (#1), after-filter (#2) and petcock valve (#1) (units
with air motor) to drain moisture and clean out dirt particles.
7.3.5 Completely depressurize the AirPrep System separator tank (#12) by slowly and completely
opening the blowdown ball valve (#11). See Section 6.2 for blowdown procedure.
Airborne particles and loud noise hazard from the blowdown exhaust air can cause serious
injury and loss of hearing. Wear approved eye and ear protection. Stay clear of blowdown
air path. DO NOT place hands or other body parts in the blowdown air path. Make sure no
personnel are in the blowdown air path.
7.3.6 Close drain valves (#3), (#14), and petcock valve (#11).