AS 30 - AS 35 - User Manual - Safety Precautions

Oct 23, 2026

Upload by OKfine

User manual content for Kaeser Sigma screw compressors covering safety precautions and operational requirements. Emphasizes disconnecting power at the main switch, discharging system pressure, using only approved replacement parts, and preventing misuse of compressor air for breathing or food-related processes. Includes warnings about modifications, safe start-up preparation, installation constraints (temperature range, duct sizing, clearance), rotation direction verification, shutoff valve positions, and consequences of ignoring warnings. Provides an overview entry and a structured table of contents covering specifications, design, installation, start-up, maintenance, wiring, drawings, transport instructions, and troubleshooting.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages75

Reading Time3 h 9 min

AccessFree to download

Safety Precautions

Table of Contents

Dimensions and specifications

Description of the SIGMA screw compressor

Design and function of the unit

Installation

Ventilation of the air-cooled units

Air discharge connection

Electrical connection

Overload relay adjustment

Preparation for initial start-up

Start-up after oil change and/or long standstill

Checking the direction of rotation

Instrument panel

Safety system KAESER CONTROL

Idle time adjustment

Pressure switch adjustment

Control system

DUAL-Control (standard)

QUADRO-Control (optional)

Maintenance schedule

Air inlet filter

Filter material

Oil filter

Oil separator

Compressor oil specification

Oil change

Temperature gauge with high temperature switch

Motor lubrication

V-belt tension

Cleaning the cooler

Checking the safety valve in the oil separator tank

Maintenance parts list

Recommended maintenance schedule

Maintenance check list

Wiring diagram

Dimensional drawing

Transport Instructions

Trouble shooting

Valve service supplement

1 2 3 4 ● S 30/3s28.590 5 6 ● 7 8 9 0 4S30/3S 428.590 AS 30 AS 35 KAESER-CONTROL IMPO R T A N T Read entire service manual before operatingunit or performing any maintenance. Always shut off power to unit at main dis-connect switch before attemptíng any main-tenance.All system pressure should be dis-charged unless manual instructs otherwise. Use only“Kaeser Compressors”approvedreplacement parts. Compressed air from any oil lubricated Kaesercompressor is not sui table for use in anybreathing apparatus or food related process. A TTE NT I 0 N Kaeser Compressors declines responsibilityfor any modifications made to any Kaesercompressor other than those made at theKaeser factory or those made with prior.written permission from Kaeser Compressors. # SAFETY PRECAUTIONS Every Screw Compressor is operated and thoroughly tested at the factory before shipmentto make sure the compressors delivers its rated capacity and is in good working order.However,all the care given at the factory will not prevent possible damage duringtransit.We recommend the unit be carefully inspected for evidence of possible damagein shipment.During the first few hours of operation,the machine should be watched forany possible malfunction. Comply with the following before start-up - Remove all packing,tools and debris from in and around unit before operating. - Do not operate in the presence of toxic or flammable vapor. - Work on current-carrying parts may only be carried out by an appropriatepersonnel. - Do not operate the compressor at a voltage other than the one specified on thecompressor nameplate. - Do not operate the compressor at pressures exceeding the maximum pressuresindicated on nameplate. Install the compressor in an area where the air inlet temperature is at least40°F but no higher than 100°F. If an air outlet duct is provided,it should be at least the size of the cooleroutlet cross-section and.the pressure loss in it should not exceed the maximumlimit stated by the compressor manufacturer. - Install the compressor to maintain a distance of 3 ft.between the cooling airinlet of the unit and the wall. Do not shut off the compressor operating with load at the main disconnect switchUse start/stop switch(4,Figure·4) Check for proper direction of rotation.DO NOT OPERATE UNIT IF-ROTATION IS INCORRECT. Make sure the shutoff valve(4,Figure 21)is closed. Make sure the shutoff valve(3,Figure 22)at the discharge line is open. Shut off the unit,tighten up all the screws in the control box(repeat this after50 operations hours). Make sure the maintenance doors are closed. FAILURE TO HEED THIS OR ANY OTHER WARNING MAY RESULT INAN ACCIDENT CAUSING PERSONAL INJURY OR PROPERTY DAMAGE. Table of Contents Page 1.Dmenslons and specificatlons 2. Descriptlon of the Slgma screw compressor 3.Deslgn and function of the unft 4. Installatlon 4.1 Ventilation of the alr-cooled unlts 4.2 Air dlscharge connectlon 4.3 Electrlcat connectlon 4.4 Overload relay adjustment 5.Preparation for Initlal start-up 5.1 Start-up after oll change and/or long standstIII 5.2 Checking the drectlon of rotatlon 5.3 Instrument panel 5.4 Safey system KAESER CONTROL ·5.5 Idle time adjustment 5.6 Pressure swltch adjustment 5.7 Control system 5.7.1 DUAL-Control(standard) 5.7.2 QUADRO-Control(optlonal) 6. Maintenace schedule 6.1 AIr inlet fiiter 6.2 FIter mat 6.3 O11 fiter 6.4Oil separator 6.4.1Checklng the pressure differential 6.4.2FIIter replacement 6.4.3Mounting of elastle pipe connectlon 6.5Compressor ollspeciflcatlon 6.5.1Mineral olls 6.5.2Synthetlc olts Addlng oll 6.6 Oil change 6.7 6.8Temperature gauge with hlgh temperature swltch 6.9 Motor lubrlcatlon 6.10 V-belt tenslon 6.10.1 V-belt changing 6.11 Cleanlng the coolar 6.12 Checking the safety valve In the oll separator tank 6.13 Malntenance parts list 6.14 Recommended m

FAQs

What safety steps must be followed before operating or performing maintenance?

Read the service manual fully before operation or maintenance. Shut off power at the main disconnect switch and discharge all system pressure unless instructed otherwise.

What parts and uses are prohibited for Kaeser screw compressor operation?

Use only Kaeser Compressors approved replacement parts. Compressed air from an oil-lubricated Kaeser compressor is not suitable for breathing apparatus or food-related processes.

How should the compressor be set up before initial start-up?

Remove packing, tools, and debris around the unit, verify installation temperature range, install appropriate clearances, ensure proper rotation direction, and confirm the shutoff valves are in the correct positions before shutting off or starting the unit.

Oct 23, 2026

Upload by OKfine