GD 7CDL Parts List Operating And Service Manual Download Page 55

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Specifications subject to change without notice
© Copyright 2010 Gardner Denver, Inc. Litho in U.S.A.

For additional information, contact your local representative or

Gardner Denver Compressor Division

1800 Gardner Expressway, Quincy, Illinois 62301
Phone: (800) 682-9868

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Fax (217) 221-8780

E-mail:

[email protected]

Visit our web site:

www.gardnerdenver.com

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Summary of Contents for 7CDL

Page 1: ...PARTS LIST OPERATING AND SERVICE MANUAL BLOWERS VACUUM PUMPS 7CDL P SERIES 37 1 614 Version 03 September 8 2010...

Page 2: ...ted AEON PD blower lubricants specifically formulated for optimum performance in all blowers 4 Authorized distributor service technicians are factory trained and skilled in blower maintenance and repa...

Page 3: ...Quarts 28G24 5 Gallon Pail 28G25 55 Gallon Drum 28G28 AEON PD Food Grade Synthetic Lubricant Description Part Number 1 Quart 28H97 Case 12 Quarts 28H98 5 Gallon Pail 28H99 55 Gallon Drum 28H100 AEON P...

Page 4: ...economical operation and minimum downtime Danger is used to indicate the presence of a hazard which will cause severe personal injury death or substantial property damage if the warning is ignored Wa...

Page 5: ...Foreword 4 Index 6 List Of Illustrations 7 Safety Precautions 8 Introduction Your Key To Trouble Free Service 9 Section 1 Equipment Check 9 Section 2 Installation 10 Section 3 Operation 19 Section 4...

Page 6: ...s 29 Repair Parts 30 Rotor Shaft Seals 29 Some Common Causes Of Blower Failure 29 Maintenance 27 Operating Principle 10 Operating Temperature 22 Overhaul Kit 35 Safety Devices 15 Check Valve 15 Relief...

Page 7: ...3 DISCHARGE OPENING 41 FIGURE 7 4 ROTORS 41 FIGURE 7 5 ANGULAR CONTACT BEARING ASSEMBLY 42 FIGURE 7 6 BEARING INSTALLATION 42 FIGURE 7 7 DISCHARGE END BEARING CARRIER 42 FIGURE 7 8 ROTOR END CLEARNAC...

Page 8: ...ressure has been relieved Electrical shock can and may be fatal Blower unit must be grounded in accordance with the National Electrical Code A ground jumper equal to the size of the equipment ground c...

Page 9: ...and safety equipment necessary to protect personnel against hazards involved in installation and operation of this equipment in the system or facility STORAGE Your Gardner Denver Blower was packaged...

Page 10: ...ties cross the discharge port completing the cycle The cycle occurs twice each revolution of the main bearing rotor and is continuous CONSTRUCTION All models of the 7CDL Series CycloBlower are of simi...

Page 11: ...design cannot be given because of varying conditions If necessary use shims under feet for leveling to prevent distortion when foundation bolts are tightened After installation on the foundation is co...

Page 12: ...burrs Polish the shaft and bore if necessary for proper fit Fit keys to keyways Check coupling alignment Exact alignment will vary with the type of couplings however it is not uncommon to hold alignme...

Page 13: ...e bearing life On direct connected units alignment and lubrication of the couplings to specifications of the coupling manufacturer are very important When mounted drives are supplied from the factory...

Page 14: ...875 0 852 1 125 0 789 1 375 0 706 0 150 0 980 0 400 0 943 0 650 0 899 0 900 0 847 1 150 0 782 1 400 0 697 0 175 0 977 0 425 0 939 0 675 0 894 0 925 0 841 1 175 0 774 1 425 0 687 0 200 0 973 0 450 0 93...

Page 15: ...operating pressure 1 2 to 1 Hg In vacuum service NOTICE Relief valves should be placed as close as possible to the blower inlet port vacuum operation or discharge port pressure operation High Tempera...

Page 16: ...event distortion from misalignment An accurate pressure gauge must be provided near the blower discharge to indicate operation pressure If noise level is a factor a discharge silencer should be used T...

Page 17: ...37 1 614 Page 17 FIGURE 2 4 OUTLINE DIMENSIONS TOP INLET MAIN ROTOR DRIVE...

Page 18: ...L WT lbs A Inches B Inches C Inches D Inches OUTLINE DIMENSIONS DRAWING NO 7CDL11P 880 34 50 1 5 20 38 28 25 302CBL800 7CDL14P 940 37 50 4 5 23 38 31 25 303CBL800 7CDL17P 1033 40 50 7 5 26 38 34 25 30...

Page 19: ...ATINGS Maintain a close check for severe vibrations unusual noise leaks and undue heating The blower will gradually heat up due to compression but after a reasonable length of time temperature will st...

Page 20: ...3 LIQUID RATE Vacuum The blower may be operated either in dry vacuum or wet vacuum service Do not operate the blower above the maximum vacuums shown in FIGURE 3 1 page 19 or below the minimum speed s...

Page 21: ...f rotor sealing is obtained with small quantities 1 gallon per minute of injected liquid Best performance is attained by using the amount of injected liquid that maintains the discharge air temperatur...

Page 22: ...eed at given pressures or vacuums are listed in FIGURE 3 6 page 23 as speed is reduced pressure or vacuum must also be reduced EXAMPLE Using a 7CDL11 blower operating against 18 PSIG minimum allowable...

Page 23: ...ore restarting Do not operate a blower which is noisy vibrating or heating excessively Minimum Speed RPM Dry Pressure Models Up to 15 PSIG 18 PSIG 20 PSIG 7CDL11 1100 1550 2000 7CDL14 1100 1400 1670 7...

Page 24: ...reate heavy bearing shaft loads which lead to premature failure 4 Be sure adequate drive guards are in place to protect the operator from severe personal injury from incidental contact 5 Check the uni...

Page 25: ...ed especially for positive displacement blower service to provide maximum blower protection at most temperatures Refer to FIGURE 4 1 One filling of AEON PD will last a minimum of 4 times longer than a...

Page 26: ...IC LUBRICANT CHART For ambient temperatures less than 10 F but not less than 20 F the use of sump heaters heated enclosures or synthetic lubricant is required For ambient temperatures 10 F to 32 F the...

Page 27: ...ts is not time predictable A differential pressure indicator with a continuous gauge reading should be installed across the inlet filter It will tell how much of the service life of the filter element...

Page 28: ...filter without silencer is used the service instructions in the previous section will also apply Dry Type Filter and Filter Silencer FIGURE 4 6 page 28 When the outside surface of the element appears...

Page 29: ...erature rough surface on bearing spacer damage during installation and improper seal used The radius at the end of the bearing spacer and O D should be highly polished to prevent seal lip damage durin...

Page 30: ...in the left hand column of the parts list are used to help locate parts shown on the drawing and sectional view DO NOT ORDER BY REFERENCE NUMBERS After locating the reference number the part number m...

Page 31: ...37 1 614 Page 31 SECTION 5 PARTS LIST GEAR END DISCHARGE END FOR LIST OF PARTS SEE PAGES 33 AND 34 4060 Ref Drawing...

Page 32: ...37 1 614 Page 32 4060 Ref Drawing FOR LIST OF PARTS SEE PAGES 33 AND 34...

Page 33: ...36 8500036 17 SPACER BEARING 2 8504493 8504493 8504493 18 SEAL ROTOR SHAFT 2 8500389 8500389 8500389 19 SEAL ROTOR SHAFT 2 8500388 8500388 8500388 20 SHIM HOUSING 1 8501175 8501175 8501175 21 SHIM HOU...

Page 34: ...1174 8501174 55 SCREW 4 655EF060 655EF060 655EF060 56 LOCKWASHER 4 95B7 95B7 95B7 57 PIN DOWEL 4 62M97 62M97 62M97 58 PIN DOWEL 2 62M50 62M50 62M50 59 LOCKWASHER 32 95B5 95B5 95B5 60 SCREW SOC HD LOCK...

Page 35: ...m Set 1 8501201 Roller Bearing Cylindrical 1 8500167 Bearing Lockwasher 2 95N12 Bearing Lockwasher 1 95W25 Bearing Locknut 2 50Z12 Bearing Locknut 1 50Z9 Screw Socket Head Lock 4 75P12N Screw Socket H...

Page 36: ...he gear hub and pinion and for installing bearings 2 Provide bearing press plate FIGURE 6 2 for pulling the pinion gear and for installing the main rotor bearings Pulling directly on pinion teeth will...

Page 37: ...GURE 6 5 and pull the gear hub Use a shaft protector Remove the key from the shaft 6 If a hydraulic puller is not available the hub and pinion may be pulled as shown in FIGURE 6 6 Do not use a torch t...

Page 38: ...holes of the bearing housing far enough to prevent stripping of the threads and evenly adjust so the plate is square with the shaft Press one rotor through the bearing at a time then proceed to Step 1...

Page 39: ...37 1 614 Page 39 FIGURE 6 10 ROTOR REMOVAL FIGURE 6 11 BEARING CARRIER...

Page 40: ...nless galling is severe Reuse of parts severely galled may result in loss of blower efficiency All damaged parts which have been reworked should be checked for run out or warpage before reuse Assembly...

Page 41: ...SPACER 3 Place 030 thick aluminum shim 20 on the gear end bearing carrier 4 The pointed section of the shim is positioned on the machined surface of the carrier to match the contour of the housing Low...

Page 42: ...tlined in Steps 5 thru 8 5 The angular contact bearings 29 30 must be assembled as shown in FIGURE 7 5 to assure a fixed bearing The marked face of the inner bearing is placed down in the bearing bore...

Page 43: ...rotor end clearance at both inlet and discharge ends referred to as total end clearance the distance between the face of the bearing carriers must be equal to the rotor length plus both end clearance...

Page 44: ...the face of the discharge end bearing carrier The reading of the indicator will be the total end clearance and should match dimensions listed in the clearance chart FIGURE 7 8 page 43 If the indicator...

Page 45: ...the green outside diameter oil seal 27 on the main rotor shaft and the red outside diameter oil seal 28 on the gate rotor shaft The dirt lip and the rotation arrow should be down Drive the seal flush...

Page 46: ...suring a fixed position of the rotor This is an important step in assembly The best method for tightening the nuts is with a wrench of the type shown in Error Reference source not found Disassembly pa...

Page 47: ...wable tolerance Wider clearance will not result in blower failure but may affect efficiency If the discharge end clearance is too great make sure the bearing retainer plate is tight holding the bearin...

Page 48: ...screws 46 and two dowels 43 Slide the end cover assembly over the shaft extension FIGURE 7 21 and mount the cover to the bearing carrier with screws 46 and washers 51 Remove the protective installatio...

Page 49: ...bore Remove installation sleeves 25 Slide enough shims over the main rotor shaft largest shaft FIGURE 7 25 up against the end of the bearing spacer until the reading is 008 to 013 LESS than the readin...

Page 50: ...Heat the pinion and hub in oil or dry heat such as an oven NEVER USE TORCH to 350 F for thirty minutes minimum to allow for complete heat penetration If heating with oil in a confined area use of coo...

Page 51: ...ews move the shaft in a clockwise direction until all slack is taken out of the gears and rotors to give a metal to metal contact To prepare for the first reading set the indicator at zero 29 FINDING...

Page 52: ...tors are held in time by the clamping action of the screws and distortion of the flat washers into the gear holes Tighten screws securely Check interlobe clearance to make sure the 2 3 indicator readi...

Page 53: ...33 130 150 Locknut 34 64 90 Capscrew 46 38 41 Capscrew 47 75 80 Capscrew 48 75 80 Socket Head Capscrew 44 65 70 in lb Socket Head Capscrew 45 51 58 Socket Head Capscrew 49 51 58 NOTE Ref No denotes i...

Page 54: ...the Purchaser The Company may require the return of any part claimed not to be as warranted to on of its facilities as designated by Company transportation prepaid by Purchaser to establish a claim un...

Page 55: ...For additional information contact your local representative or Gardner Denver Compressor Division 1800 Gardner Expressway Quincy Illinois 62301 Phone 800 682 9868 Fax 217 221 8780 E mail pd blowers...

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