1. Committed to sustainable productivity.
XAS185 JD7 Compressors
Scott Malm 1.
Committed to sustainable productivity.

2. Hard Hat Version Unit features Two canopy choices
One made from composite material that does not dent or rust
Removable side and end panels for easy service
Rear mounted controls and discharge valves

3. Standard Version Steel construction
Removable side and end panels for easy service
Same rear mounted control panel

4. XAS 185 JD7 Product nomination and grouping Principle data
Compressor systems:
Service Kits
Warranty

5. 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
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
185 J D 7
Capacity (FAD)
Liter/sec CFM (US-version)
Working pressure
: standard pressure psi
T : “ten” pressure psi
H : high pressure psi

6. Nomination and grouping
Principle Data
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel

7. Nomination and grouping
Compressor Systems
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
*4 major systems
Air system
Oil system
Regulating system
Electrical system
This figure shows you the compressor systems and their parts. Basically, a compressors consists of three systems: the air system, the oil system and the regulating system. You can click on one of the three titles to find out more about that particular system.

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

9. Nomination and grouping
Air System
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Air filter
Unloading valve
Compressor element
Check valve
Air receiver
Minimum pressure nozzle
Air outlet valve
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.

10. Nomination and grouping
Air Filter
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Air inlet
Centrifugal separation
Dust
Filter element
to compressor element
Vacuum indicator
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.

11. Air Filter Filtration of the inlet air in 2 stages :
Centrifugal dust separation
Paper filter element
Optional safety element
Air filter vacuum indicator
Safety Filter XAS 185 JD Compressor
Engine

12. Nomination and grouping
Unloading Valve
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Opens and closes the air inlet to the compressor element.
Open position at load condition => Air demand.
Closed position at no load condition => No air demand.
Valve is controlled by the regulating pressure.
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.

13. Nomination and grouping
Unloading Valve
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Regulating pressure
Air inlet
Spring loaded
Vent Hole
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.
Integrated
blow-down valve
Valve

14. Nomination and grouping
Unloading Valve
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
LOAD
Regulating pressure
UNLOAD
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.
Air inlet

15. Nomination and grouping
Compressor Element
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.

16. Compressor Coupler

18. Nomination and grouping
Compressor Element
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.
Oil is injected in the bottom of the rotor housing,
on the bearings and gears

19. Nomination and grouping
Compressor Element
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Oil
Air/Oil
Air inlet
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.

20. Nomination and grouping
Check Valve
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Check valve is integrated in the Unloader XAS 185 JD compressor.
Closed when the compressor is stopped.
The air receiver is pressurized, which would result in a reverse air flow.  the check valve prevents this.
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.

21. Nomination and grouping
Check Valve
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Valve Part #
LOAD
SHUT-DOWN
Receiver pressure
When compressor is shut-down
Check valve
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.

22. Nomination and grouping
Air Receiver
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Air/Oil
Centrifugal Separation
Air outlet
Separator
Element
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.

23. Minimum Pressure Nozzle
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
NOZZLE
Guarantees a minimum pressure in the receiver tank (approx. 45 – 60 psi)
Minimum pressure is required to guarantee a continuous oil supply to the element.
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.

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

25. Nomination and grouping
Oil System
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 works. They will give you an overview of the different parts and their function.

26. Nomination and grouping
Air Receiver
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Oil flow
Pressure
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.
No Compressor Oil Pump Necessary

27. Nomination and grouping
Oil Cooler
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Warm Oil
Cooling air
Cool Oil
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.
Oil Temp Should Have no more than 40 F Drop Through The Cooler – Use Proper Oil and Filters

29. Nomination and grouping
Oil Filter
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Dirty Oil
Filtered Oil
By-pass valve
By pass valve opens at 36 PSI
Ensures sufficient lubrication
And cooling if the filter gets clogged
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.
Part #

30. Nomination and grouping
Compressor Element
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Oil
Air/Oil
Lubrication to the bearings
Air inlet
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.
Scavenged oil

31. Oil Separator & Scavenge Line
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
* Centrifugal force removes about 85% of the oil
Change of direction, about 99% of the oil
After separator element at discharge will be 3 to 5 PPM.
Air/Oil
Centrifugal separation
Separator Element
Oil
Scavenge line
**Make sure the scavenge line runs ALONG SIDE the air outlet tube and NOT in the air outlet**
When changing the separator element the retainer must be cleaned
Also works as ground
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.

32. Oil Separator Separator Kit Part Number 2911 0068 00
Classic Reasons For Oil Carryover
Over filled receiver
Plugged scavenge line or restricted orifice
Wrong type of oil (no anti foam agent and anti-corrosion additives)
Shut down with air outlet valves open (Only On XAS 185)
Scavenge tube installed improperly (in outlet tube)
Used incorrectly for application (Sandblasting)
Separator Kit Part Number

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

34. Nomination and grouping
Regulating System
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Regulating valve
Unloading valve
Speed regulator
Blow-down valve
Safety valve
Regulating Valve
Unloading Valve
Speed Regulator
Safety Valve
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.

35. Nomination and grouping
Regulating Valve
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Regulates the effective pressure in the air receiver
Provides regulating pressure to :
unloading valve => regulates the air inlet according the air demand
speed regulator => regulates the engine speed to reduce fuel consumption
Regulating Valve Part Number
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.

36. Nomination and grouping Adjusts Unload Pressure
Regulating Valve
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
UNLOAD
LOAD
Adjusts Unload Pressure
Control Pressure
Pressure Gauge
To speed reg
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.
To unloading valve
To blow down valve
Scavenge line
Receiver Pressure

37. Nomination and grouping
Speed Regulator
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Regulates the engine speed in relation to the required air demand
Load condition : maximum engine speed
Unload condition : minimum engine speed
Reg. will adjust the engine speed to match air demand
Speed Regulator part number
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.

38. Nomination and grouping
Speed Regulator
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Control air
Control air
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.
Vent
Vent
Max Speed
Idle Speed

39. Nomination and grouping
Blow Down Valve
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Blows off the air receiver pressure once the compressor has shut-down => this is to depressurize the receiver tank
Integrated in the unloading valve
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.

40. Unloading Valve – Cut Away
Blow Down Valve

41. Nomination and grouping
Blow Down Valve
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
LOAD / UNLOAD
BLOW-DOWN
Blow-off
receiver pressure
Receiver pressure
Receiver Pressure
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.
blow-down valve

42. Nomination and grouping
Safety Valve
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Blows off the air receiver pressure when it exceeds the preset value.
Protects the compressor and engine.
XAS 185 JD PSI
The following slides explain how the regulating system of the XA(H)S works. They will give you an overview of the different parts and their function.

43. Compressor Running Conditions
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Major running conditions :
UNLOAD Receiver tank pressurized, no air being used
LOAD Receiver tank pressurized, air is being used
BLOW-DOWN Machine stopped, blow-off of receiver pressure
There are four states the compressor can be in: lo-load, unload, load and blow down. Each condition is explained in detail in the following pages.

44. Electrical System

45. Nomination and grouping
Electrical System
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
12 Volts DC
Alternator has built in voltage regulator
B+ Positive to recharge battery
B- Ground
W Frequency for tachometer (optional)
D+ Ground when alternator is turning less than 650RPM
12 Volts when turning more than 650 RPM
Cuts-out starter motor when engine is running through K4 relay

46. Nomination and grouping
Electrical System
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel
Safety shut-downs
Compressor :
Compressor element outlet temperature (255ºF) –
Engine :
Coolant temperature (221ºF)
Oil pressure (17psi)
Low fuel level (5%)
Alternator not charging
Fail safe as a loose wire will result in a shut-down
Good electrical contacts are important

47. Electrical System / Std Unit - XAS 185 JD7
Nomination and grouping
Principle data
Compressor systems
Running conditions
Electrical system
Instrument panel

48. Switch In The Off Position1

49. Switch In The On Position
Start button S1 position 1:
Line 2 on 12V contact K3 closed (30-87), lamp H2 is
on. K4 excites contact K4 (87-87a). Thermocontact
element S5 normally closed, K1 excites contact K1
(30-87). 2

50. Switch In The On Position S-4 Cold Start Pressed
Use of preheat:
Start button S1 position 1 press pushbutton S4,
energizes relay K5 and provides power to the
glowplug. 3

51. Switch In The # 2 Position
Start button S1 position 2:
Line 3 on 12V (override function) hourmeter P1, and
fuel solenoid Y1 is excited. Thermocontact engine S2
normally closed, oil pressure contact S3 open. 4

52. Switch In The Start Position
Start button S1 position 3:
Start relay K0 is excited and starter motor is running,
engine builds up oil pressure and oil pressure contact
S3 closes. K3 excited and contact K3 changes over to
(30-87). Relay K2 no longer excited, contact K2
opens, lamp H1 goes out. Alternator also commences
supplying voltage and K4 is no longer excited and
contact K4 changes over to (87-87a). Lamp H2 goes
out, one can release start button S1 and it returns to
position 1. Exciting the safety devices occurs no
longer across line 3 but across line 2 to line 4 and this
way to line 3. 5

53. Switch Back To The On Position- Engine Running
Explanation of shutdowns:
Oil pressure contact S3 opens, K3 no longer excited.
K3 changes over (87a-87), engine cuts out because
fuel solenoid Y1 no longer excited and lamp H2 goes
on simultaneously.
Thermocontact S2 opens, K3 no longer excited. K3
changes over (87a-87), engine cuts out because fuel
solenoid Y1 no longer excited and lamp H2 goes on
simultaneously.
Thermocontact S5 opens, K1 no longer excited.
Contact K1 changes over (87-87a). K3 no longer
excited. K3 changes over (97a-87), engine cuts out
because fuel solenoid Y1 no longer excited and lamp
H2 and H1 go on simultaneously. Take-over relay K2
is excited simultaneously with H1 and contact K2
closes (30-87).
Thermocontact S5 cools off and closes, K1 excited
again and contact K1 changes over (87-87a).
However, lamp H1 remains on across line 9 and
contact K2 (30-87).
A fault in the alternator part causes terminal D+ to go to 0V
and K4 to be excited. Contact K4 changes over to (87a-
87), engine cuts out because fuel solenoid Y1 no longer
excited and lamp H2 goes on simultaneously. 6

54. Control Panel
Ignition Switch
General Alarm Lamp
Comp Temp Lamp

55. Control panel is
Mounted at the
rear of the unit
More visible and user friendly

56. 10 AMP Circuit Breaker Behind Control Panel
Working Pressure
Compressor temp
Cold Start
Fuel Gage
Hour Meter
10 AMP Circuit Breaker Behind Control Panel
General alarm
Ignition Switch
Coldstart

59. Service Kits XAS 185 CD Kit number Designation 2911 0051 00 Unloader
Speed Reg.(Piston Seal)
Speed Reg.(Wiper)
Oil separator

60. Preventive Maintenance Filter Kits
60. Atlas Copco in Brief
The Atlas Copco Group is a global industrial group of companies developing, manufacturing, and marketing products and services to a wide range of customers and end-users. A world leader, the Group provides compressed air and gas equipment, generators, construction and mining equipment, assembly systems, electric and pneumatic tools, and related services and equipment rental.
The Atlas Copco Group owns well-known brands such as Atlas Copco, RSC, Prime Energy, Chicago Pneumatic.
The head office is in Stockholm, Sweden. The Group has approximately employees in some 70 countries. In 2003, the Group reached revenues of MSEK with 98% of revenues outside Sweden.

61. Spare Parts Recommendation

62. Maintenance DAILY Check engine oil level Check compressor oil level
Check air filter vacuum indicator
Empty air filter vacuator valve

63. Maintenance 50 HOURS Change compressor spin on filter (2914 5050 00)
Check battery terminals (Load Test)
Check tire pressure / re-torque wheel lug nuts
Check drawbar bolts
Check for leaks in the air, fuel, and oil system
Check engine minimum (1600) / maximum (2750) RPM
Lubricate door hinges / locks / etc.

64. Maintenance 250 Hours Perform 50 hour maintenance plus:
Change engine oil and filter
Clean the oil cooler / radiator
Clean fuel tank
Change fuel filters

65. Maintenance 500 Hours/Annually Perform the 250 hour maintenance plus:
Change compressor oil spin on filter
Check/Replace air filter elements

66. Maintenance 1000 Hours/Annually Perform 500 hour maintenance plus:
Adjust valves on engine
Replace Air oil separator
Test safety valve
Test operation of engine and compressor
Test safety switches and relays
Repack or Grease wheel bearings

67. Torque values
SAE Grade 5
SAE Grade 8

68. Special Torque values Wheel nuts 59 lb.ft (+7-0)
Axle - beams lb.ft (+/-7)
Drawbar - axle lb.ft (+/-7)
Drawbar - bottom 59 lb.ft (+/-7)
Towing eye - drawbar 59 lb.ft (+/-7)
Lifting eye - flywheel housing 151 lb.ft (+15/-0)
Engine - drive housing (M12) 59 lb.ft (+/-7)
Engine - drive housing (M14) 92 lb.ft (+/-7)
Compressor - drive housing 59 lb.ft (+/-4)
Safety switches lb.ft (+/-4)

69. Warranty – Compressors – Replacement Parts
Atlas Copco portable air compressors are warranted to be free from defects with regard to materials and workmanship for the period of fifteen (15) months from date of shipment from the factory, or twelve (12) months from date of initial startup, whichever occurs first, without limitation in running hours.
All Spare Parts are sold with a 90 day warranty unless otherwise specified.

70. Warranty – Air Compressor Elements
Air compressor elements and gearbox assemblies used in Atlas Copco portable air compressors, are warranted to be free from defects with regard to materials and workmanship for the period of thirty-nine (39) months from date of shipment from the factory, or thirty-six (36) months from date of initial startup, whichever occurs first, without limitation in running hours. This is provided only Atlas Copco kits and fluids are used throughout this period.
Replacement of Elements
In the event that there is a need to replace an element it will be warranted for 12 months or the balance of the machine warranty which ever is greater.
Extended warranty of 5 years 10,000 Hrs. on compressor element and gearbox assemblies provided only Atlas Copco kits and fluids are used throughout the 5 year period at the maintenance intervals indicated in the instruction manual.

72. Warranty - Engines John Deere –
1 year unlimited hours or 2 years 2000 hours whichever occurs first.
Extended engine warranties may be purchased through the local engine dealers.

75. Committed to sustainable productivity.