42 Copyright © 2020 Axxiom Manufacturing, Inc.
7.1 Filling the AirPrep Air Dryer System with Deliquescent/Desiccant
(ADS Systems only)
7.1.1. The AirPrep ADS System must be completely depressurized before filling with
deliquescent can begin. Follow the depressurizing procedure in Section 6.2.
Airborne particles and loud noise hazards from 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.
7.1.2. Open the pre-filter (#1) drain ball valve (#3) to check for air flow. No air flow indicates that
the AirPrep System is depressurized. See Figure 7.1(b).
7.1.3. Remove the handway cover (#7) at the top of the separator tank (#12).
7.1.4. Check inside the separator tank for looseness of the deliquescent/desiccant tablets (#9).
Extended exposure to moisture will fuse the tablets together and can possibly block or
restrict air flow. Break apart fused tablets with a long rod or similar device. Fill with tablets
to the top of the separator tank (#12).
7.1.5. Re-install the handway cover and gasket (#7). See Section 6.3 for installation procedure.
7.1.6. Only after completing all the pre-operation procedures in Sections 6.0 and 7.1, and the
AirPrep System is then pressurized per Section 7.2, check the handway(s) (#7) for leaks.
Periodically check the handway(s) for leaks thereafter.
7.2 AirPrep System Startup (refer to Figure 7.1)
7.2.1. The AirPrep System must be properly prepared and all operating personnel must be
thoroughly trained before operation. Completely read and understand all sections of this
manual before beginning operation. See the pre-operation procedures given in Section 6.0.
7.2.2. Perform the required inspections and maintenance before beginning AirPrep System
operation. See the instructions given in Section 8.0.
The AirPrep System is a Pressurized Vessel. Propelled objects will cause serious injury or
death. Depressurize vessel before performing any maintenance. See Section 6.2.
7.2.3. Supply air to the AirPrep System by starting the air compressor and opening the
compressor's air outlet valve (#44).
7.2.4. Open the AirPrep System air inlet ball valve (#46). Note: This valve is provided by the
equipment owner/operator and filed installed. See Figure 6.2 and Section 5.1.
7.2.5. Slightly open drain valves (#3), (#11) and petcock valve (#14) (units with air motor) so that
moisture/debris can be drained from the pre-filter, after-filter, separator tank, and air filter
as it is removed from the compressed air.
7.0 Operating Instructions
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