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XA(T,V)S 650-750-850 CD7 Compressors

Scott Ellinger

Committed tosustainable productivity

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Systems Overview XAS 750 CD

Product Designation Oil Injected Compressors

X A T S 750 C D

Product rangeX : Oil injected portable compressor

Working principleA : Single stage compressorR : Two stage compressor

Working pressure

: std pressure 102psiM : 125psiT : 150psiH : 175psiV : 200psi

Silencing : Un-silencedS : Silenced

Capacity (FAD)Liter/secCFM (US-version)

Engine supplierC : CaterpillarD : DeutzJ : John DeereY : YanmarK : Kubota

Prime moverD : diesel engineE : electric motor

Compressor systems

Four major components :

– Air system– Oil system– Control system– Electrical system

Air system

Air filter

Filtration of the inlet air in 3 stages :

– centrifugal dust separation– paper filter element– safety cartridge

Vacuum indicator gives an indication when the pressure drop over the filter element is too high filter element needs to be replaced

Air filter

Air inlet Centrifugal separation

Dust

Filter element

to compressor element

Vacuum indicator

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REGULATING SYSTEM REG VALVE

Spring loaded

Adjusting receiver pressureby changing spring tension

• to pressure gauge and loading valve

• to speed regulator• to unloading valve

Regulating pressure:

Receiver pressure

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.

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.

Regulating valve service kit 2911 0111 00

Unloading valve

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.

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Unloading Valve or Air System Inlet Valve

Opens by intake suction

Control Air closes the inlet

LegendReceiver PressureFrom Pressure Regulator right now very low to zero pressure

Unloading valve service kit – 2911 0110 00

No-Load Condition Load Condition

Unloading valve Regulating valve Regulating valve

Load solenoidMin Press valve

Unloading valve

Load solenoidMin Press valve

Unload Condition Blow- Down Condition

Regulating valve Regulating valveUnloading valveUnloading valve

Min Press valve Load solenoid Min Press valve Load solenoid

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Maintains a minimum pressure

of 58 PSI for oil flow

Also contains the final check

valve

AIR SYSTEM MIN PRESS VALVE

Oil System

Oil System

Air receiver

Oil cooler

Oil filter/TBV

Compressor element

Oil separator

Scavenge line

Compressor element

Oil

Oil

Air/Oil

Lubrication to the bearings

Air inlet

Oil separator

Air/Oil

Centrifugal separation

Separator element

Oil

Scavenge line

Oil Separator filter element should be replacedEvery 1,000 hours or yearly.

Oil Separator

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 – 2911 0112 00

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Oil Filters Remove contamination from compressor oil

–2 filters in parallel–Bypass opens at 36 psi

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Thermostatic Valve

Start of opening Completely open Part number Used in104 °F 140 °F 1619 7560 00 Size 1,5140 °F 167 °F 1202 5869 02149 °F 176 °F 1202 5869 03158 °F 185 °F 1202 5869 01 Size 2, except XRVS167 °F 194 °F 1202 5869 04176°F 203 °F 1615 9720 00 XRVS

Size 1 ½

(XAS 650-750-850)

Size 2

(XAS 1800, XRVS 1000-1350)

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Position of valve & spring = critical! !

Thermostatic Valve

When valve is fitted improperly, oil will be continuously cooled, creating a lot of condensate

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Oil Stop Valve/Check Valve assembly

Oil stop valve and check valve integrated into one assembly

Check valve prevents reverse flow of air

Oil stop valve prevents flooding of oil at shutdown

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Oil Stop Valve

Spring loaded valve

Prevents element from flooding with oil after shut down

Closed by spring force and oil pressure

Opens by discharge air from element

Drain : lowest point of element

Oil from filters

To compressor element

Oil & air mixture

Control System

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Control Panel

XC2002 Status

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XC2002 Menus

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Basic Operations

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Shutdown

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XC2002 Service Timer Reset

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Scroll through the controller menu to “Parameters” (on some units “Parameters” may be a submenu under “Extra Views”)

Press Enter to select Parameters

Scroll to ST1 Reset or ST2 Reset as needed (ST1 = 500 hours, ST2 = 1000 hours)

Press Enter to select to reset the appropriate timer

Prompt for Password: change to 2003 and press Enter

Center option will highlight; scroll to change to “Yes” and press Enter

Service timer is reset

XC2002 Alarms

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XC2002 AlarmsIf an Alarm occurs, a pop-up window will display for as long as the alarm is active, in any view. The flashing red Alarm LED will light up.

The Alarm icon(s) will be shown with an acknowledgement check box. Push the Enter button to acknowledge the alarm. An acknowledged Alarm will mark the check box and light the red Alarm LED.

An Alarm should always be acknowledged before solving the cause of the Alarm.

The Alarm display can be left by pushing the Back button.

If more than one Alarm occurs, the Up and Down arrows may be used to scroll through the list. Newest Alarms will be at the bottom of the list.

If a Shutdown occurs, the Shutdown Display will be shown.

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XC2002 Event Log

XC2002 keeps an event log of the last 15 events.

Shutdowns

Warnings

Service timer resets

Unit type changes

Running hours at time of event logged37

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Engine Faults

Compressor Faults

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Electrical System

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Wiring Diagram (1)

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Wiring Diagram (2)

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Maintenance

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Maintenance – XA(T,V)S 650-750-850 CD IT4

Daily:

Check engine oil level

Check compressor oil level

Check coolant level

Drain water from fuel filter

Empty air filter vaccuator valve

Check tire pressure

Maintenance – XA(T,V)S 650-750-850 CD IT4

Initial Service at 50 Hours

Check electrolyte level and terminals of battery

Check for leaks in Air, Oil, and Fuel systems

Check wheel nut torque

Check and adjust brakes

Check and adjust fan belts

Replace compressor oil filters (spin-on)

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Maintenance – XA(T,V)S 650-750-850 CD IT4500 Hour service (typical 6 months)

Perform 50 hour service tasks

Clean oil cooler, radiator, intercooler

Grease door hinges

Grease towing eye shaft or ball coupling and shaft

Analyze coolant

Replace engine oil and filter

Replace fuel primary filter and prefilter

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Maintenance – XA(T,V)S 650-750-850 CD IT41000 Hour service (typical 12 months)

Perform 500 hour service tasks

Test safety valve and shut down switches

Check rubber flexibles

Replace air filters and separator element

Replace compressor oil and filter

Replace bleed off valve unloader

Clean oil stop valve and fuel tank

Replace filter element from regulating valve

Clean flow restrictor in oil scavenge line

Inspection by Atlas Copco service technician

Check/adjust engine valves every 2000 hours or per Caterpillar

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IT4 EXHAUST AFTERTREATMENT

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Tier 4: DOC and DPF

Diesel Oxidation Catalyst (DOC)

Diesel Particulate Filter (DPF)

CEM- Cleaning Emission Module

XC2002 DPF Status Indicators

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Xc2002 – DPF Information

Regeneration functionsRegeneration functions• ParameterParameter

• DPF – Diesel Particulate filter – can DPF – Diesel Particulate filter – can change from AUTO to ON or turn OFF change from AUTO to ON or turn OFF completely (not recommended!)completely (not recommended!)

• STATION REGEN. – Stationary STATION REGEN. – Stationary (manual) Regeneration – OFF or ON(manual) Regeneration – OFF or ON

• Both need to be set to “ON” for manual Both need to be set to “ON” for manual regenerationregeneration

• Both are password protectedBoth are password protected

• Unit will auto regenerate when soot level Unit will auto regenerate when soot level reaches ~70% with unit in auto modereaches ~70% with unit in auto mode

Procedure: Stationary/Forced DPF Regeneration Atlas Copco recommends that the DPF configuration be left in the

AUTO mode at all times however in the event that a stationary or forced regeneration in desired the following process should be followed.

Unit will not auto regenerate until soot level is above 70%– Go to the "STATION REGEN" screen. For normal operation this

should be in OFF mode. Press the enter button (1), a password window will appear.

Enter 1968 and press the enter button. Use the up or down (2) arrow to change the selection to ON

and press the enter button. – Go to the "DPF" screen. For normal operation this should be in

the AUTO mode. Press the enter button (1) Use the up or down (2) arrow to change the selection to ON

and press the enter button.

This will set the unit up for regeneration, after a few moments the regeneration icon should appear confirming the unit is regenerating. – The stationary/forced regeneration can take in excess of 3

hours to complete.

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Contact Numbers•Main Number Atlas Copco Technical Support 800-732-6762 Option 3

•Ed Kukfisz – Compressors – Supervisor 281-542-2562 direct & 832-385-4697 mobile

•Andrew Stevenson – Compressors: Low Pressure720-479-2486 direct & 404-751-6717 mobile

•Andrew Calendar – Compressors: High Pressure720-479-2487 direct & 404-242-6203 mobile

•Scott Ellinger – Compressors720-479-2476 direct & 720-375-1795 mobile

•Robert Walsh – Generators – Supervisor 803-487-0256 direct (mobile)

•Will Hudson – Generators/Compressors 800-732-6762 Ext. 12920 & 832-454-8123 mobile

•Brandon Hobbs – Hydraulic Attachments /Handheld Construction Tools – Supervisor 303-287-8822 direct & 913-424-4039 mobile

•Al Eckenfels – Hydraulic Attachments/Handheld Construction Tools800-760-4049

Committed tosustainable productivity.