Gardner Denver ELECTRA-SCREW ESG Instructions/Service Manual Download

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Summary of Contents for ELECTRA-SCREW ESG

Page 1: ...13 9 601 1st EDITION ELECTRA SCREW STATIONARY COMPRESSORS 30 HP IMoDEL 040 HP MODEL 50 HP MODEL ESG ESH ESJ 13 9 601...

Page 2: ...and operation all guarantees of performance are subject to variation of 3 COMPANY DOES NOT WARRANT THE MERCHANTABILITY OF ITS PRODUCTS AND DOES NOT MAKE ANY WARRANTY EXPRESS OR IMPLIED OTHER THAN THE...

Page 3: ...CTION 2 2 1 Control System Automatic Start Stop 2 6 Control System Constant Speed 2 2 Control System Dual 2 6 Control System Duomatic 2 8 Control Valve Oil Flow Duomatic Unit Only 3 5 Control Valve Wa...

Page 4: ...Dual 2 6 Pressure Adjustment Operating Air Duomatic 2 9 Pressure Differential Group 3 5 Pressure Drop Oil Cooler Oil 3 6 Pressure Gauge Air 2 2 Pressure Minimum Operating Automatic Start Stop 2 6 Pre...

Page 5: ...s pass the inlet port cutoff air is trapped in the interlobe cavity and flows axially with the meshing rotors B As meshing continues more of the main rotor lobe enters the secondary rotor groove norma...

Page 6: ...13 9 601 Section 1 Page 2...

Page 7: ...13 9 601 Section 1 Page 3...

Page 8: ...x IL I i I 0 m 1 13 9 601 Section 1 Page 4...

Page 9: ...ch is nonfunctional To replace the bulb Sylvania 120 PSB or equal in the switch 1 Turn power off at main breaker panel 2 Open control panel 3 Turn slotted locking screw on upper side of switch body co...

Page 10: ...essive oil carry over into shop air lines even when the air service valve is fully open The amount of oil carry over into the air service line depends on the operating pressure A normal carry over amo...

Page 11: ...er Section Pressure Adjustment Start the unit Close the air service line valve allow the air receiver section to build to full pressure and the unit to unload and proceed as follows AIR RECEIVER PRESS...

Page 12: ...21B90 SET 230 F H M HDURMETER 2009369 I 15 V 60 Hz 12009370 115 V 50 Hz ALTERNATER M MDTOR STARTER COIL AND CONTACTS M W V MAGNETIC WATER VALVE 90AC 118 115 VAC TWD WAY NORMALLY CLDSED 3 4 2W N C 0 L...

Page 13: ...SET 150 LBS MAXIMUM CUTOUT SETTING 2 AMP 25D V BUSS FUSETRDN FRN2 HIGH DISCHARGE PRESSURE SWITCH 88A305 SET 140 160 LBS HIGH DISCHARGE TEMPERATURE SWITCH 21B90 SET 230 F HO URMETER 2DD9369 115 V 60 Hz...

Page 14: ...screw near desired pressure turn counterclockwise to increase differential clockwise to decrease Full receiver pressure minus differential is the low receiver pressure motor start point Differential...

Page 15: ...T SETTING 2 AMP 250 V BUSS FUSETRON FRN2 HIGH DISCHARGE PRESSURE SW3TCH 88A305 SET 140 160 LBS HIGH DISCHARGE TEMPERATURE SWITCH 21B90 SET 230 F HOURMETER 2DD9369 115 V 60 Hz 2009370 115 V 50 Hz ALTER...

Page 16: ...n the timer is set between O and 30 the unit will start and the inlet valve open when the pressure in the receiver section falls to the pressure switch low setting When the pressure rises to the press...

Page 17: ...GE OIL TEMP GAuGE owB Y7 r HIGH DISCHARGE PRESSURE SWITCH TIMED DUOMATIC CONTROL yg SET LOW RECEIVER PRESSURE COMPRESSOR LOAD POINT FIGURE 11 2 INSTRUMENT PANEL TIMED DUOMATIC CONTROL 1 With power on...

Page 18: ...115 VAC TWO WAY NORMALLY CLOSED 3 4 2 W N C OVERLOAD TEMPERATURE AND PREssURE 24cA41 RESET BUTTON sEAL 24cA42 THE 1 2 INCH EXTENSION OF THE RESET BUTTON RED PLUNGER 1 4 INCH NORMAL I GIVES VISUAL IND...

Page 19: ...I I I I Q BLOWOOWN LINE CHECK VALVE OUOMATIC ONLY R OPERATING AIR PRESSURE SWITCH LOAO UNLOAO AUTO START STOI DUAL DUOMATIC ONLY S MAGNETIC UNLOAOER OUOMATIC ONLY T AIR INLET VALVE cONTROL ORIFICE OU...

Page 20: ...ately 2 U S gallons Repeated addition of oil between oil changes may indicate excessive oil carry over and should be investigated OIL LEVEL GAUGE indicates the amount of oil in the oil reservoir secti...

Page 21: ...150 PSIG with the unit can be expected between the inlet and outlet side of the cooler COOL OIL HOT OIL FIGURE 4 3 THERMOSTATIC MIXING VALVE THERMOSTATIC MIXING VALVE Used 3 3 COMPRESSOR OIL FILTER Oi...

Page 22: ...he valve inoperative Never attempt to change capillary length Excess capillary tube should be carefully coiled and placed so that darnage will not occur in normal maintenance or traffic past unit If a...

Page 23: ...ns a 1 16 orifice and is connected to the return line from the dry sump portion of the oil separator section Orifice fittiug stamped S contains a 3 32 orifice and is connected to the line from the sep...

Page 24: ...mperatures Air and Oil Discharge Temperature 1500 to 180 F Check with a thermometer in the tapped opening on top of the compressor discharge pipe to the oil reservoir Compressor Oil Inlet Temperature...

Page 25: ...sen retaining band clamp and remove dust cup Do not wash dust cup wipe clean with clean dry cloth Do not bend edge of cup by striking on hard surface When installing dust cup make sure clamping is sec...

Page 26: ...pection indicates a rupture crack or pin hole in the pleated media Inspection should be done by placing a bright light inside the element b Pressure drop through a filter with a freshly cleaned elemen...

Page 27: ...ular and parallel alignment Maximum allowable runout for either angular or parallel alignment is 020 TIR Steps 3 and 4 give an alternate method if dial indicator is not available 3 Check angular align...

Page 28: ...ressor unit on raising blocks to obtain desired drain height 2 Construct an oil sump or trough below the floor level and pump or bail drained oil 3 pump oil from the reservoir filler or drain to a con...

Page 29: ...e line minimum pressure valve is normally located in the air receiver section of the oil reservoir on the side opposite the control panel The service line may be attached to the control panel side of...

Page 30: ...ation at this maximum temperature will require up to 10 GPM more water flow than that shown for 90 F water in Figure 4 6 Water outlet temperature should be held to 105 F Maximum water outlet temperatu...

Page 31: ...3 Min Flow 2 2 gpm Max Flow 18 0 gpm 125 3 5 5 0 11 6 150 4 0 6 o 13 7 80 3 2 4 6 10 9 ESH 100 3 8 5 4 12 8 40 HP 110 4 1 5 8 13 8 Min Flow 2 2 gpm Max Flow 18 0 gpm 125 4 5 6 5 15 2 150 5 2 7 5 17 5...

Page 32: ...ential DO NOT EXCEED MAXIMUM OPERATING PRESSURE ON COMPRESSOR NAMEPLATE See Section 2 controls and Instruments for procedure Check the high pressure shutdown switch setting 165 PSI maximum Operating M...

Page 33: ...because of full receiver pressure or stopped on unloaded time cycle press OFF push button On water cooled heat exchanger units close any manual water inlet valves Open air service valve to remove pres...

Page 34: ...is excessive Every 1000 Hours Operation 1 Change the oil falter element 2 Change the compressor oil if using an SAE grade oil UNDER ADVERSE CONDITIONS CHANGE MORE FRE QUENTLY refer to Oil Change Inte...

Page 35: ...OWN ON START STOP SYSTEM check control for malfunction control lines for restriction or leaks pressure switch for dirt or leaking diaphragm wiring and tubing to pressure switch SOLENOID BLOWDOWN VALVE...

Page 36: ...y from keyway and inspect and remove the oil sump plate Figure 1 1 Place the compressor upside down discharge end plate socket head screw see arrow Remove the one 1 cylinder flange to 2 Block the comp...

Page 37: ...ot to burr rotors or cylinder during this operation Remove the bearing retainer plate and bearing locknut from rotor shafts With a puller rigged as shown Figure 9 or if a press is available press the...

Page 38: ...8 The torque values shown in the table are to be used only with the appropriate grade and type of screw Tightening a Grade 5 screw to a Grade 8 torque could result in screw breakage tightening a Grade...

Page 39: ...ach bearing bore Figure 3 match and record with measurement made on main and secondary rotors in Step 2 These measurements are to be used later CLEARANCE CHART UNIT COLD Total End Clearance Inlet Disc...

Page 40: ...IN END PLATE IN POSITION SHOWN IN FIGURE 8A Faces marked SUPPORT go together This gives a fixed bearing holding the rotors in a freed position NOTE Do not drive any bearing in with a hammer and drift...

Page 41: ...t Use care not to damage carbon face of seal Tighten four 4 screws evenl d torque per table The retainer plate will not pull up flush against the face of housing as it must clamp the seat an two gaske...

Page 42: ...assembly to COOL Install the oil seal tight against the shoulder of shaft with the carbon face of seal towards end of the shaft Use care so the carbon al set screws 16 Lightly coat both bearing bores...

Page 43: ...ticed flush the system thoroughly 2 Install a new oil filter cartridge 3 Inspect the oil separator in the oil reservoir Replace if necessary 4 Inspect and clean if necessary the discharge check valve...

Page 44: ...meter I Suction 2 375 2 370 I Rotor Bearing Outer Suction 0005 T oollL Race to Bore Discharge 0000 0011L Drive or Driven Gear to Shaft 0005 T 0015T Drive Shaft to Coupling 000 002L Drive Shaft Inner R...

Page 45: ...AH NEW JERSEY 07430 386 S H ghwey N 17 ODESSA TEXAS 79760 East H ghwa 80 OKLAHOMA Clm OKLAHOMA 73129 2200 South Pr so ct Avenue PHILADELPHIA H ORSHAMI PENNSYLVANIA 19044 406 Cared D PHOENIX ARIZONA 85...

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Gardner Denver ELECTRA-SCREW ESG, Instructions/Service Manual

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