1. Manuals
  2. Brands
  3. Atlas Copco Manuals
  4. Air Compressor
  5. LE15
  6. Instruction book

Atlas Copco LE15 Instruction Book

Stationary air compressors. le series; lt series; lf series
Hide thumbs Also See for LE15:
Table of Contents

Advertisement

Quick Links

No. 2920 1257 04
Registration code: APC L / 38 / 989
Replaces 2920 1257 03
2000-10
*2920125704*
Atlas Copco Stationary Air Compressors
LE/LT15, -22, -40, -55, -75, -110, -150
LF15, -22, -40, -55, -75
Instruction Book
• Copyright 2000, Atlas Copco Airpower n.v., Antwerp, Belgium.
Any unauthorized use or copying of the contents or any part thereof is prohibited. This applies in
particular to trademarks, model denominations, part numbers and drawings.
• This instruction book meets the requirements for instructions specified by the machinery directive
98/37/EC and is valid for CE as well as non-CE labelled machines.
www.atlascopco.com

Advertisement

Table of Contents
loading

Related Manuals for Atlas Copco LE15

Summary of Contents for Atlas Copco LE15

  • Page 1 LF15, -22, -40, -55, -75 Instruction Book • Copyright 2000, Atlas Copco Airpower n.v., Antwerp, Belgium. Any unauthorized use or copying of the contents or any part thereof is prohibited. This applies in particular to trademarks, model denominations, part numbers and drawings.

  • Page 2: Table Of Contents

    Atlas Copco. Follow all relevant safety precautions, including those mentioned on the cover of this book. Repairs must be carried out by trained personnel from Atlas Copco who can be contacted for any further information. In all correspondence mention the type and the serial number, shown on the data plate.

  • Page 3: Leading Particulars

    LF15 up to LF40, LE15 up to LE55 and LE75 50 Hz are single-stage LE, LF and LT Trolley units (Figs. 1.15 and 1.16) are mobile compressors; LE75 60 Hz, LE110/150, LF55/75 and LT are compressors.
  • Page 4 Instruction book 1 AF 50949F 50948F Fig. 1.2 Example of Power Pack with unloading valve Fig. 1.1 Example of Compressor Block with unloading valve AF Air filter DP Oil drain plug FN Fan Motor SG Oil level sight-glass Cover Intercooler Air inlet silencer Crankcase Cooling pipe...
  • Page 5 Instruction book AF SV 50950F Fig. 1.4 Complete Unit, LT15/22, horizontal receiver (standard receiver is 120l) AF 3 2 M Y1 13 P1 50951F Fig. 1.5 Complete Unit, LE/LT15/22/40, vertical receiver (standard receiver is 250l) 50952F Fig. 1.6 Complete Unit, LE/LT75 60 Hz, LF75 and LE/LT110-150 (standard receiver is 250l) AC Air cooler P1 Hourmeter, running time...

  • Page 6: Le/Lt40 Up To -150, Lf40 Up To -75, Each With Y/D Starter

    Instruction book 13 P1 50954F Fig. 1.9 LE/LF/LT with CD dryer D 0656 Fig. 1.7 Complete Unit, LT75 60 Hz and LT110 1.3.2 LE/LT40 up to -150, LF40 up to -75, each with Y/D starter (Fig. 1.11) The regulating system includes: Electric cubicle (11) Air pressure switch (MDR) On/off switch (5)
  • Page 7 Instruction book Fig. 1.10 Air flow of LE and regulating system of LE/LF/LT15 up to -55 with DOL starter and separate air pressure switch Fig. 1.11 Air flow of LT and regulating system of LE/LT40 up to -110, LE150 and LF55/75 with Y/D starter and electric cabinet 2920 1257 04...

  • Page 8: Le/Lf/Lt Trolley

    Instruction book Fig. 1.12 Air flow of LE Trolley and regulating system of LE/LF/LT Trolley Air filter MDR Air pressure switch Cooler Air receiver Pulsation damper On/off switch Air outlet valve Pilot valve Cooling pipe AV1/2 Air outlet valves Oil level sight-glass LP cylinder Check valve Safety valve...
  • Page 9 Instruction book Compressed air from the pulsation dampers will flow to When the pressure in the pulsation dampers decreases to the plunger (12) which causes unloading valve (UV) to open. The pre-set minimum pressure, the pilot valve closes. Control air air at the delivery side of the compressor is blown through from the unloader plunger chamber is vented to atmosphere.

  • Page 10: Installation And Handling

    Instruction book 2 Installation and handling 2.1 Dimension drawings Fig. 2.1 Dimension drawing, LE/LT15 up to -40 and LF15/22 Power Pack 2920 1257 04...
  • Page 11 Instruction book Fig. 2.2 Dimension drawing, LE/LT55/75 and LF40/55 Power Pack 2920 1257 04...
  • Page 12 Instruction book Fig. 2.3 Dimension drawing, LE/LT15 up to -40 and LF15/22 Complete Unit (horizontal 120 l receiver) 2920 1257 04...
  • Page 13 Instruction book Fig. 2.4 Dimension drawing, LT15 up to -40 Complete Unit (vertical 250 l receiver) 2920 1257 04...
  • Page 14 Instruction book Fig. 2.5 Dimension drawing, LE/LT40 Complete Unit (horizontal 250/475 l receiver) 2920 1257 04...
  • Page 15 Instruction book Fig. 2.6 Dimension drawing, LE/LT55/75 and LF40/55 Complete Unit (horizontal 250/475 l receiver) 2920 1257 04...
  • Page 16 Instruction book Fig. 2.7 Dimension drawing, LE/LT15 up to -40 and LF15/22 Complete Unit with optional silencing hood 2920 1257 04...
  • Page 17 Instruction book Fig. 2.8 Dimension drawing, LE/LT55/75 and LF40/55 Complete Unit with optional silencing hood 2920 1257 04...
  • Page 18 Instruction book Fig. 2.9 Dimension drawing, LE/LF/LT Pack with optional silencing hood 2920 1257 04...
  • Page 19 Instruction book Fig. 2.10 Dimension drawing, LE/LT15 up to -40 Unsilenced Pack 2920 1257 04...
  • Page 20 Instruction book Fig. 2.11 Dimension drawing, LE/LT55/75 and LF40/55 Unsilenced Pack 2920 1257 04...
  • Page 21 Instruction book Fig. 2.12 Dimension drawing, LE/LT15 up to -150 with CD dryer 2920 1257 04...
  • Page 22 Instruction book Fig. 2.13 Dimension drawing, LE/LF/LT Trolley with electrical motor 2920 1257 04...
  • Page 23 Instruction book Fig. 2.14 Dimension drawing, LE/LT75 up to -150 and LF75 Power Pack 2920 1257 04...
  • Page 24 Instruction book Fig. 2.15 Dimension drawing, LE/LT75 up to -150 and LF75 Complete Unit (horizontal 250/475 l receiver) 2920 1257 04...

  • Page 25: Installation Proposals

    Instruction book 2.2 Installation proposals Fig. 2.16 Installation proposal for Complete Unit (120 l receiver) Fig. 2.17 Installation proposal for Complete Unit (250/475 l receiver) 2920 1257 04...
  • Page 26 Instruction book Fig. 2.18 Installation proposal for Complete Unit (vertical 250 l receiver) Fig. 2.19 Installation proposal for Complete Unit with optional silencing hood Fig. 2.20 Installation proposal for Pack compressors Figs. 2.16 up to 2.20 Installation proposals 2920 1257 04...

  • Page 27: Le/Lf/Lt

    Instruction book 2.2.1 LE/LF/LT F1 K1 K2 P1 Install the compressor horizontally, in a cool but frost-free and well-ventilated room. Place the compressor as level as possible; however, LE/LT can be operated with an angular deviation below 22.5 degrees in any direction, LF can operate with any angular deviation, in any direction.
  • Page 28 Instruction book Fig. 2.22 Electrical diagram of single-phase LE/LF/LT with Fig. 2.23 Electrical diagram of 3-phase LE/LF/LT15 up to - direct-on-line starter 55 with direct-on-line starter Fig. 2.24 Electrical diagram of 3-phase LE/LT40 up to -110, LE150 and LF40 up to -75 with star-delta starter 2920 1257 04...
  • Page 29 Instruction book Fig. 2.25 Electrical diagram of 3-phase LE/LT40 up to -110, LE150 and LF40 up to -75 with transformer and star-delta starter Fig. 2.26 Electrical diagram of 3-phase LE/LT40 up to -110, LE150 and LF40 up to -75 with star-delta starter and CD dryer 2920 1257 04...

  • Page 30: Settings Of Overload Relay - Fuses - Cable Size

    2.4 Settings of overload relay - fuses - cable size 2.4.1 Settings of overload relay - fuses of compressors with DOL starter 50 Hz Type Voltage Overload relay Fuses LE/LF/LT15 230 (1-phase) 10.7 LE/LF/LT15 LE/LF/LT15 LE15 LE/LF/LT22 LE/LF/LT22 LE/LF/LT40 15.7 LE/LF/LT40 LE/LF/LT55 20.3 LE/LF/LT55 12.0 LT75 14.7...

  • Page 31: Settings Of Overload Relay - Fuses Of Compressors With Y-D Starter

    Instruction book 2.4.2 Settings of overload relay - fuses of compressors with Y-D starter 50 Hz Type Voltage Overload relay Fuses LE40 LT40-15 bar LT40-20 bar LE/LT40 LE/LT40 LE/LF/LT55 12.2 LE/LF/LT55 LE/LF/LT55 LE/LT55 LE/LF/LT75 14.5 LE/LF/LT75 LE/LF75 LE/LF/LT75 LE/LT110 22.5 LE/LT110 13.1 LE/LT150...

  • Page 32: Cable Size

    Note: It is strongly recommended to install an interstage drain kit, to remove excess condensate, on LT compressors with a load factor less than 20% per hour. Consult Atlas Copco. 1. For Complete Units, remove the transport brackets from underneath the compressor.

  • Page 33: Stopping

    Instruction book Warning Never move the compressor after plugging in. LE/LF/LT Trolley 1. Set pilot valve (RV-Fig. 1.12) in the unload position by 5. On compressors with DOL starter, push the (I) button turning the red handle 90 degrees (see section 5.6). on top of the pressure switch.

  • Page 34: Maintenance

    2000 Change blow-off silencer, if provided " 2000 On LE/LT, if mineral oil is used, change oil 2-yearly 3000 On LE/LT, if Atlas Copco PAO oil is used, change ----- 3000 to 4.4/5.1 Replace check valve or unloader 4000 ----- 4000 4.4/5.2...

  • Page 35: Lubrication Of Le/Lt Compressors

    (AF) number Fig. 4.1 For LE/LF/LT15/22 1503 6129 61 It is strongly recommended to use the Atlas Copco approved For LE/LF/LT40 up to -55 PAO (polyalphaolefine) compressor oil to keep the compressor and LE/LT75 50 Hz 1503 6129 62 in excellent operating condition.

  • Page 36: Servicing And Adjustment Procedures

    Instruction book 5 Servicing adjustment Replacement of valve discs (Figs. 5.1 and 5.2) procedures LE15/55 LE75 60 Hz Operation sequence LE75 50 Hz HP cylinder Warning Release the pressure from the compressor before LF15/40 LE110/150 starting repair or maintenance works. Switch...

  • Page 37: Air Filter

    Instruction book Torque values LE15/55 LE75 60 Hz Operation sequence 10 Nm +/- 2 LE75 50 Hz HP cylinder 23 Nm +/- 2 LF15/40 LE110/150 M10: 46 Nm +/- 5 LE75 60 Hz HP cylinder LP cylinder LT15/110 LE110/150 HP cylinder...
  • Page 38 Instruction book 50960F Fig. 5.3 View of air pressure switch MDR4 Air pressure switch Solenoid valve Pressure release valve Adjusting screw, stopping pressure Adjusting screw, pressure difference 50961F Figs. 5.3 up to 5.5 Air pressure switch Fig. 5.4 Adjusting screws MDR4 Example: LE Stopping pressure: 7 bar(e) Starting pressure: adjustable between 3 and 5.7 bar(e)

  • Page 39: Adjustment Mdr5/6 Pressure Switch

    Instruction book 5.5 Adjustment MDR5/6 pressure switch 5.6 Adjustment pilot valve on Trolley (Figs. 5.6 and 5.7) (Fig. 5.8) Caution The adjustment of the maximum or unloading pressure of the Adjust the air pressure switch while it is pressurized. compressor is effected by means of pilot valve (RV-Fig. 1.16). Switch off the voltage before removing the cover of the The valve also controls the difference between the preset switch;...

  • Page 40: Safety Valve

    Instruction book Testing on LE/LF/LT 1. Close the air outlet valve, depressurize and disconnect the hose or pipe from the valve. 2. Start the compressor and run it until it stops automatically. 3. Switch off the voltage. Remove the cover from the air pressure switch and, with the air receiver now under pressure, turn the adjusting knob or screw one turn clockwise to increase the stopping pressure (see also sections 5.4/5.5).

  • Page 41: Problem Solving

    Instruction book 6 Problem solving 7 High oil consumption on LE/LT compressors a Oil level too high a Do not overfill crankcase. Keep level in red circle of sight- glass 1 Insufficient air pressure b Piston ring(s) worn or broken a Air leak b Have condition of piston rings checked a Check and correct as necessary...

  • Page 42: Principal Data

    Maximum working pressure ......bar(e) See below 7.3 Compressor data for LE 10 bar 7.3.1 50 Hz Compressor type LE15 LE22 LE40 LE55 LE75...

  • Page 43: 60 Hz

    Instruction book 7.3.2 60 Hz Compressor type LE15 LE22 LE40 LE55 LE75 LE110 LE150 Maximum working pressure for LE ..bar(e) Maximum working pressure for LE Trolley ..... . . bar(e) Pre-set pressure difference for LE Trolley .

  • Page 44: 60 Hz

    Instruction book 7.4.2 60 Hz Compressor type LF15 LF22 LF40 LF55 LF75 Maximum working pressure for LF ....bar(e) Maximum working pressure for LF Trolley ..bar(e) Pre-set pressure difference for LF Trolley .

  • Page 45: 60 Hz

    Instruction book 7.5.2 60 Hz Compressor type LT15 LT22 LT40 LT55 LT75 LT110 Maximum working pressure for LT ..bar(e) Maximum working pressure for LT Trolley ......bar(e) 13.7 13.7 13.7...

  • Page 46: 60 Hz

    Instruction book 7.6.2 60 Hz Compressor type LT15 LT22 LT40 LT55 LT75 LT110 LT150 Maximum working pressure ..bar(e) Temperature at outlet valve, approx. - Unsilenced compressor ... . Celsius 40 - Silenced compressor .

  • Page 47: 60 Hz

    Instruction book 7.7.2 60 Hz Compressor type LT22 LT40 LT55 Maximum working pressure ....... . . bar(e) Temperature at outlet valve, approx.

  • Page 48: Conversion List Of Si Units Into Us/British Units

    Instruction book 8 Conversion list of SI units into US/British units 1 bar = 14.504 psi 1 g = 0.035 oz 1 kg = 2.205 lb 1 km/h = 0.621 mile/h 1 kW = 1.341 hp (UK and US) 1 l = 0.264 US gal 1 l = 0.220 Imp gal (UK) 1 l = 0.035 cu.ft 1 m = 3.281 ft...

This manual is also suitable for:

Le75Le22Le150Le110Le40Lt15 ... Show all

Table of Contents