XAS 375 CD6 Compressors Committed to sustainable productivity Scott Ellinger Committed to sustainable productivity

Technical Specifications - XAS 375 CD6

Technical Specifications - XAS 375 CD6

Product Nomination Oil Injected Compressors Nomination and grouping Principle data Compressor systems Running conditions Electrical system Instrument panel Engine supplier C : Caterpillar D : Deutz J : John Deere Y : Yanmar K : Kabota Working principle A : Single stage compressor R : Two stage compressor Product range X : Oil injected portable compressor Silencing : Un-silenced S : Silenced Prime mover d : diesel engine E : electric motor X A T S 375 C D Capacity (FAD) Liter/sec CFM (US-version) Working pressure : standard pressure 102psi T : “ten” pressure 150psi H : high pressure 175psi

Compressor systems Air system Oil system Regulating system Four major components : Air system Oil system Regulating system Electrical system

Air system The following slides explain how the regulating system of the XA(H)S 146-186 works. They will give you an overview of the different parts and their function.

Air system Air filter Compressor Element (AFCE) (with vacuator valve VV, Safety Cartridge SC and vacuum indicator VI) Unloading Valve (UV) Compressor Element (CE) Temperature Switch (TS) Check Valve (CV) Air Receiver (AR) Non Return Valve Minimum Pressure Valve (MPV) Air Outlet Valve (AOV)

Air filter centrifugal dust separation paper filter element Filtration of the inlet air in 3 stages : centrifugal dust separation paper filter element safety cartridge (optional) Vacuum indicator gives an indication when the pressure drop over the filter element is too high  filter element needs to be replaced

Air filter Centrifugal separation Air inlet Vacuum indicator Filter element Dust to compressor element

REGULATING SYSTEM REG VALVE Spring loaded Adjusting receiver pressure by changing spring tension to pressure gauge and loading valve to speed regulator to unloading valve Regulating pressure: Receiver pressure In order to regulate the pressure inside the reciever tank of our compressor, the air intake and the engine speed have to be controlled. This is done pneumatically. For that reason, we need regulating pressure. The regulating valve reduces the pressure inside the tank, thus providing the regulating pressure. This regulating pressure is then supplied to the unloader valve and the speed regulator or RPS. The air receiver pressure can be set to another value by adjusting the spring tension of the regulating valve. This is done by turning the handle on top the valve. Increasing the spring tension, by turning in, will increase the regulating pressure and consequently the pressure inside the vessel. Turning out will decrease the pressure. Regulating Valve Service Kit – 2911 0090 00

Unloading valve Open position at load condition => Air consumption Opens and closes the air inlet to the compressor element. Open position at load condition => Air consumption Closed position at no load condition => No air consumption. Control of the valve by regulating pressure.

Unloading Valve or Air System Inlet Valve Legend Receiver Pressure From Pressure Regulator right now very low to zero pressure Spring loaded in the open position Control Air closes the inlet Also serves as check valve Unloading valve service kit – 2911 0074 00

No-Load Condition Load Condition

Unload Condition Blow- Down Condition

AIR SYSTEM MIN PRESS VALVE Maintains a minimum pressure of 58 PSI for oil flow Also contains the final check valve

OIL SYSTEM The following slides explain how the regulating system of the XA(H)S 146-186 works. They will give you an overview of the different parts and their function.

Oil System (old style) Air receiver Oil cooler Oil filter Nomination and grouping Principle data Compressor systems Running conditions Electrical system Instrument panel Air receiver Oil cooler Oil filter Compressor element Oil separator Scavenge line The following slides explain how the regulating system of the XA(H)S 146-186 works. They will give you an overview of the different parts and their function.

Oil System (new style) Air receiver Oil cooler Oil filter/TBV Compressor element Oil separator Scavenge line The following slides explain how the regulating system of the XA(H)S 146-186 works. They will give you an overview of the different parts and their function.

Oil injected screw compressors

Compressor element Greasing to the bearings Air inlet Oil Air/Oil

Oil injected screw compressors Oil is used for : Cooling : compression heat is absorbed by the oil Lubrication of rotors, bearings, gears Sealing between rotors and rotor and housing Corrosion protection of the internal metal parts

Oil injected screw compressors Oil is injected in the bottom of the rotor housing, on the bearings and gears

Compression principle Suction Compression start Delivery Compression

Oil separator Scavenge line Separator element Centrifugal separation Oil Separator filter element should be replaced Every 1,000 hours or yearly. Centrifugal separation Oil Air/Oil

Oil Separator Separator Element Service Kit – 1604 0386 83 Classic Reasons For Oil Carryover Over filled receiver Plugged scavenge line Wrong type of oil (no anti foam agent) Shut down with air outlet valves open Scavenge tube installed improperly Separator Element Service Kit – 1604 0386 83

Control Panel

Starting and Stopping Instructions Start Up: Open a discharge ball valve. Once the engine is running, the valve can be closed and the unit run until warm. After warm up, press the load button. Engine speed will increase and the unloader valve will open and the unit will build air pressure. Pressure Setting: Standby pressure should not exceed 120 psi. Unit is designed to deliver 375 CFM at 100 psi. Stopping: Close all air discharge ball valves. Depress the load button and the engine will continue to run as the air pressure in the system slowly bleeds off. Turn off compressor. Unloader valve will bleed off remainder of air pressure from the tank.

Schematic – XAS 375 CD6

Maintenance – XAS 375 CD6

Preventive Maintenance Filter Kits – XAS 375 CD6

Contact Numbers Main Number Atlas Copco Technical Support 1-800-732-6762 Option 3 Clayton Jones - Hurricane Boosters/Compressors - Supervisor 1-216-643-6802 direct & 1-317-681-4602 mobile Andrew Stevenson – Compressors: Low Pressure 1-720-479-2486 direct & 1-404-751-6717 mobile Will Hudson – Generators/Compressors 1-800-732-6762 Ext. 12920 & 1-832-454-8123 mobile Andrew Calendar – Compressors: High Pressure 1-720-479-2487 direct & 1-404-242-6203 mobile Jon Monaco - Hydraulic Att./Handheld Tools 1-800-732-6762 Ext. 12929 & 1-216-816-5008 mobile Brandon Dyer – Compressors: Low Pressure/Hydraulic Att. 1-216-643-6807 direct & 1-216-219-2290 mobile Scott Ellinger – Compressors 1-720-479-2476 direct & 1-720-375-1795 mobile

Committed to sustainable productivity.