L&W Compressors LW 300 EC III User manual

C H A P T E R O V E R V I E W
Operating Instructions
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ECC - Electronic Compressor Control (if equipped
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Spare Parts Lists
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Options (if equipped
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Attachment
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A
B
C
D
E
Manufacturer in terms of 97/23/EC
The full name and address of the manufacturer is:
Lenhardt & Wagner GmbH
An der Tuchbleiche 39
686 3 Hüttenfeld / Germany
Phone: +49 (0) 6 56 - 85 88 0 - 0
Fax: +49 (0) 6 56 - 85 88 0 - 14
E-Mail: [e-mail]
Internet: www.lw-compressors.com

S E R V I C E I N F O R M A T I O N / W A R R A N T Y
Compressor information
Type designation
Serial number
Date of construction
Purchase information
Purchase date
First commissioned on
Warranty period
Dealer's stamp
Warranty
L&W will uphold warranty claims made during a period of 1 months from the invoice date.
If the compressor was purchased from an official L&W dealer, the date on the dealer's invoice is
valid. Warranty claims can only be made on presentation of the original invoice.
Should verifiably defective parts have been delivered, we will decide to either replace the parts or
repair them. The resulting transport and assembly costs will be invoiced.
No reduction of the purchase price or changes to the contract can be made. The parts for which a
claim is being made should be kept safe by the purchaser and, when requested, sent to us at their
cost. Replaced parts become the property of L&W. If maintenance work is carried out without our
knowledge or permission by the purchaser or a third party, we are absolved from any liability for
warranty claims. As a matter of principle, warranty claims can only be made by the initial purchaser.

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Operating Instructions
Breathing Air Compressor
LW 300 EC III / LW 450 EC III
Version: 04/18-E

Page A - 2
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LW 300 EC III / LW 450 EC III
Version: 24.04.18-001 E
T A B L E O F C O N T E N T S
Genera Information and Technica Data
General Infor ation / Description of Warning Sy bols .................................................................... 4
Scope of Delivery .............................................................................................................................. 5
Technical Data .................................................................................................................................. 6
Unit Asse bly ................................................................................................................................... 7
Switchboard ..................................................................................................................................... 8
Flow chart ......................................................................................................................................... 9
Safety Precautions
Intended Use / Operators ................................................................................................................ 11
Safety instructions on the unit ........................................................................................................ 12
General Safety Precautions ............................................................................................................. 13
Unit custo ised safety notices ....................................................................................................... 14
Maintenance instructions ............................................................................................................... 15
Transportation instructions / Safety regulations .............................................................................. 16
Insta ation
Installation in closed roo s ............................................................................................................ 18
Di ensions ...................................................................................................................................... 19
Mini u distances ........................................................................................................................ 20
Ventilation ...................................................................................................................................... 21
Electrical Installation ................................................................................................................ 22 - 23
Operation
I portant operation instructions .................................................................................................... 25
First co issioning ................................................................................................................. 26 - 28
Daily co issioning ....................................................................................................................... 29
Filling procedure ............................................................................................................................. 30
Switch off the co pressor .............................................................................................................. 31
Remedying fau ts
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Maintenance and Service
Service, Repair and Maintenance .................................................................................................... 38
Maintenance Lists / Maintenance Intervals ............................................................................... 39 - 42
Service Kits ..................................................................................................................................... 43
Check V-belt tension / Tension V-belt .............................................................................................. 44
Co pressor lubrication / Check oil level .......................................................................................... 45
Oil change ...................................................................................................................................... 46
Oil sieve change .............................................................................................................................. 47

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LW 300 EC III / LW 450 EC III
Version: 24.04.18-001 E
T A B L E O F C O N T E N T S
Maintenance and Service
Auto atic condensation du p syste ........................................................................................... 48
Oil / water separator 1st stage - aintenance ......................................................................... 49 - 50
Oil / water separators 2nd stage - aintenance ....................................................................... 51 - 52
Filter housing 1.7ltr / 0.8ltr ............................................................................................................. 53
1.7ltr filter cartridge change ............................................................................................................ 54
1.7ltr filter housing - aintenance ................................................................................................. 55
Inlet filter / Inlet filter cartridge change .......................................................................................... 56
Cylinder heads and valves ............................................................................................................... 57
Replace inlet and outlet valves 1st and 2nd stage .................................................................... 58 - 59
Replace inlet and outlet valve 3rd stage ......................................................................................... 60
Replace piston rings and needle bearings of the 2nd and 3rd stage ......................................... 61 - 62
Safety valves ................................................................................................................................... 63
Pressure aintaining / non return valve .......................................................................................... 64
Safety valve test .............................................................................................................................. 65
Leak test ......................................................................................................................................... 66
Pressure gas vessel test ................................................................................................................... 67
Maintenance records ............................................................................................................... 69 - 73
Storage
Conservation / storage of the co pressor ....................................................................................... 74
De-conservation, co issioning .................................................................................................... 74
Transportation instructions / Disposal ............................................................................................. 75