Gardner Denver ELECTRA-SCREW 40 HP-EDEQH Operating And Service Manual Download Page 42

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Summary of Contents for ELECTRA-SCREW 40 HP-EDEQH

Page 1: ...Price 5 00 GARDNER DENVER 13 8 601 2nd Edition ELECTRA SCREW STATIONARY BASE MOUNTED COMPRESSOR MODELS 40 HP EDEQH 50HP EDEQJ u A INDUSTRIAL MACHINERY c puc g fi...

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Page 3: ...EA ELECTRA SAVER EB ED ELECTRA SCREW SE ST PACKAGES Any product which has not bean opetated or maintained in accordance with normal practica and with the recom mendations of the Company Components or...

Page 4: ...ARNING A FAILURE TO OBSERVEA WARNING NOTICE COULD RESULT IN DAMAGE TO EQUIPIENT ACAUTION CAUTION NOTICES SET FORTH GENERAL REl INDERS OF GOOD SAFETY PRACTICE OR DIRECT ATTENTION TO UNSAFE PRACTI CES N...

Page 5: ...TION SECTION 2 Instruments 4 6 2 3 4 4 2 1 4 2 Lifting Unit 2 1 Location 2 1 Lubricants 5 2 Lubrication Cooling and Sealing l l LUBRICATION OIL COOLER OIL FILTER SEPARATOR SECTION 5 5 1 MAINTENANCE sc...

Page 6: ...terlobe cavity and flows axially with the meshing rotors B As meshing continues more of the main rotor lobe enters the secondary rotor groove normal volume is reduced and pressure increases Oil is inj...

Page 7: ...sages to the bearings and shaft oil seal The balance of the oil is injected directly into the compression chamber to remove heat of compression seal internal clearances and lubricate the rotors 13 8 6...

Page 8: ...13 8 601 Section 1 Page 3...

Page 9: ...ER BYPASS SAFETY DEVICES A DANGER FAILURE TO OBSERVE THESE NOTICES COULD RESULT IN INJURY TO OR DEATH OF PERSONNEL KEEP FINGERS AND CLOTHING AWAY FROM REVOLVING FAN DRIVE BELTS ETC DO NOT USE THE AIR...

Page 10: ...t may also be moved into location by rolling on bars LOCATION The compressor should be installed whenever possible in a clean well lighted well ventilated area with ample space all around for maintena...

Page 11: ...d lifting it up slightly to disengage the opposite end The doors can then be removed A DANGER DO NOT OPERATE COMPRESSOR WITH FANANDBELT GUARD REMOVED EXPOSED FAN AND BELTS HAY CAUSE INJURY TO PERSONNE...

Page 12: ...provides sufficient storage capacity to prevent rapid cycling When used an air receiver should be of adequate size provided with a relief valve of proper setting a pressure gauge and a means of draini...

Page 13: ...distance to nearest obstruction on starter control box side of the unit GROUNDING Equipment must be grounded in accordance with Table 250 95 of the National Electrical Code MOTOR LUBRICATION Long tim...

Page 14: ...Service Typical Example Rating Interval Standard One or Two Shift Operation 150 HP 18 Months Below Severe Continuous Operation 150 HP 9 Months Below Very Severe Dirty Location High Ambient 150 HP 4 Mo...

Page 15: ...he oil reservoir and the oil level may read higher than when operating on load DO NOT DRAIN OIL TO CORRECT on the next loaded cycle or start oil will again fill the system and the gauge will indicate...

Page 16: ...imum 65 psig pressure discharge valve no special procedure to maintain unit reservoir pressure is required Unit Hot No warm up period is required Close the air service valve furnished by customer Star...

Page 17: ...witch is located in the compressor discharge housing to sense compressor discharge air oil mixture temperature The second probe is located on the reservoir cover and senses the temperature of the air...

Page 18: ...Gauge Figure 3 1 This direct reading gauge indicates compressor discharge air temperature Normal operating temperature is 170 200 F Maximum discharge air temperature is limited to 225 F by the High D...

Page 19: ...valve seat closed and the downstream line vented Figure 4 4 shows the pilot with the valve seat open holding a downstream pressure which is adjustable with the screw In this position it is normal for...

Page 20: ...estricting the inlet and reducing compressor capacity Approximately 18 psig of control pressure is required to close the inlet valve completely When closed the inlet valve prevents the flow of air in...

Page 21: ...hich when air is flowing through it maintains the oil reservoir A spring loaded piston valve senses air oil reservoir side of the valve When the system pressure spring is overridden and the valve open...

Page 22: ...and is low As the demand for compressed air decreases the system air pressure increases When the air pressure exceeds the setting of the subtractive pilot the pilot passes pressure to the inlet valve...

Page 23: ...ne valve and bleed air from the unit so that the compressor loads again Close the valve and allow the compressor to unload c Repeat steps a and b until the proper pressure is obtained Tighten the lock...

Page 24: ...i above compressor rating b Loosen locknut E Turn adjusting screw D very slightly clockwise to increase or counterclockwise to decrease unload pressure c Open air service valve to load compressor d Re...

Page 25: ...35 200 VA 2 16134 UNIVERSAL lMULI I TAP CONTRO TRANSFORMER MAY OE SUP L IED FOR ALL VOLIAGiS EXCEPT 230 460 VOLT 4PP1 CA110NS FUS SECONDARY SE IS GLASS TIMC DiLAY sIziD FOR TRANSFORMER 115 VOLT SECOND...

Page 26: ...voir where a large part of entrained oil drops out of the air stream the air then passes throuqh the final and in oil The the oil separators where most of the remaining oil is removed The separated oi...

Page 27: ...SANEAS FOR GD800 SEE flAINTENANCE SCHEDULE SECTION8 HIGH TEMPERATURE OPERATION If the discharge temperature is sustained between 200 210 F for a period of more than four 4 hours due to continuing high...

Page 28: ...as read when the the oil level from the bottom to Repeated addition of oil between oi should be investigated il as requi ed to return the oil level to the t p unit is operating The quantity required t...

Page 29: ...ush the entire system reservoir oil cooler mixing valve and lines Inspect the oil separator elements for dirt accumulation replace if necessary If a varnish deposit exists contact the factory for reco...

Page 30: ...unit Do not obstruct air flow to and from the oil cooler Allow two 2 feet clearance around the cooler Keep both faces of the cooler core clean for efficient cooling of the compressor oil A f WARNING...

Page 31: ...aming excessively the oil return line from the discharge manifold to the compressor cylinder is not clogged or pinched off and the return tube inside the separator is not loose or broken and is insert...

Page 32: ...ercooler piping 5 Remove screws holding the cover to the oil reservoir Lift cover from the oil reservoil 6 Lift the 7 Inspect reinstal separator from the oil reservoir and or replace the separator as...

Page 33: ...70 to 200 F Read at thermometer on the instrument panel or check with a thermometer at the discharge housing Compressor Oil Inlet Temperature 150 to 160 F Check with thermometer at tee out of oil filt...

Page 34: ...rinse with clear water Allow to dry before reinstalling WARNING A DO NOTOIL THIS ELEMENT DO NOT WASH IN INFLAM lABLE CLEANING FLUIDS DO NOT USE SOLVENTS OTHER THAN WATER IMPROPER CLEANING MAY DAMAGE...

Page 35: ...ecked Be certain to tighten belts before mounting fan orifice Adjust fan orifice for even clearance around fan after belts are tensioned A WARNING 9 CONFIRR FAN ORIFICE HAS CHECKING BELT TENSION Using...

Page 36: ...he control system See Section 4 Every 125 Hours Operation 1 Check for dirt accumulation on oil cooler and aftercooler core faces and the cooling fan If cleaning is required clean the exterior fin surf...

Page 37: ...er overload heaters trip 1 Improperly adjusted subtractive pilot or piloted unloader valve 2 Air leak in control lines 3 Restricted control line 4 Subtractive pilot or piloted unloader valve malfuncti...

Page 38: ...piloted unloader valve adjusted too low Minimum pressure valve stuck closed Thermostatic mixing valve stuck open Dirty or clogged cooler face Insufficient cooling air flow Clogged oil filter or cooler...

Page 39: ...ECONDARY BORES DEPTH OF MAIN AND SECONDARY ROTOR BORES MAIN AND SECONDARY BEARING SHOULDERS TO INLET FACE OF CYLINDER DISCHARGE BEARING HOUSING DIAMETERS MAIN ROTOR AIR SEAL DIA MAIN ROTOR BEARING DIA...

Page 40: ...FACE OF ROTOR BODY 776 774 DISCHARGE END OF SHAFT TO DISCHARGE FACE OF ROTOR BODY 2 175 2 170 SECONDARY ROTOR DIAMETERS BODY O D 4 736 4 735 INLET AIR SEALDIA 1 836 1 835 DISCHARGE AIR SEAL DIA 2 1265...

Page 41: ...000 OOl7L SECONDARY ROTOR DISCHARGE INNER RACE TO SHAFT 0005T 0015T OUTER RACE TO HOUSING JJNNING CLEARANCE DIAMETRAL MAIN ROTOR BODY TO CYLINDER MAIN ROTOR INLET AIR SEAL MAIN ROTOR DISCHARGE AIR SEA...

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Page 44: ...c1 A INDUSTRIAL MACHINERY COOPER INDUSTRIES 1800 GARDNER EXPRESSWAY QUINCY ILLINOIS 62305 4024 217 222 5400 Specifications subject to change without notice COPYRIGHT 1989 Cooper Industries Inc Litho...

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