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Alfa Laval GJ 18 Instruction Manual Download Page 17

6   Maintenance 

17 

 

Maintain the Tank Cleaning Machine with care. Read the instructions carefully and pay special attention to the 
warnings! Always keep Minor spare parts kit in stock. 

 

6.1  General Maintenance 

Step 1 

 

 
 

Always read the technical data thoroughly.  (See chapter 7 Technical Data)  

 

Step 2 
 

Recommended spare parts: 

Order service kits from the service kits list 
(See 8.8 Minor Service Kits & 8.9 Major Service Kits) 
 

Ordering spare parts: 

Contact your local Alfa Laval Sales company. 

 

 

 

Summary of Contents for GJ 18

Page 1: ...Instruction Manual Alfa Laval GJ 18 Covering Standard Machines First published 2019 April Original manual...

Page 2: ......

Page 3: ...12 5 2 Troubleshooting 13 5 3 Cleaning Solution Leakage 14 5 4 Poor Cleaning Performance 15 5 5 Recommended Cleaning 16 6 Maintenance 17 6 1 General Maintenance 17 6 2 General Dismantling Setup 18 6 3...

Page 4: ...9999 is in conformity with the following regulations and directives with amendments The Machinery Directive 2006 42 EC DS EN ISO 12100 2011 The Pressure Directive 97 23 EC According to its own volume...

Page 5: ...leaning machine 2 1 Important Information WARNING Indicates that special procedures must be followed to avoid serious personal injury CAUTION Indicates that special procedures must be followed to avoi...

Page 6: ...n an Alfa Laval GJ is operating there should be covers over every tank opening These covers should be sealed well enough to withstand the full force of the jet striking the cover plate If the cleaning...

Page 7: ...and or nozzle size Interchangeable stators and nozzle sizes are available for either low or high pressures and or flow rates The guide performance capabilities of these options are detailed in chapte...

Page 8: ...eaning machine before operation 4 1 Unpacking Delivery Step 1 CAUTION Alfa Laval cannot be held responsible for incorrect unpacking Check the delivery for 1 Complete Cleaning Machine 2 Delivery Note S...

Page 9: ...read the mating male thread should be wrapped with PTFE pipe joint tape prior to mounting This will minimize any chance of leakage and will make subsequent removal much easier Step 4 Mounting Before m...

Page 10: ...y to clean the floor of a vessel any standing liquid will diminish the effectiveness of the Alfa Laval GJ 18 by covering any soils underneath Wherever possible the tank floor should be pitched toward...

Page 11: ...d the Alfa Laval GJ 18 should be sized to first match the flow capability of the pump and second to not exceed the Alfa Laval GJ 18 s or pump s maximum operating pressure taking the pressure rating of...

Page 12: ...med in our testing tank before shipping based on the operating conditions supplied to Alfa Laval To ensure the longest possible life of the GJ 18 please verify the operating conditions and most import...

Page 13: ...d additional flow should be enough to overcome the extra resistance of any new Bearings and Seals Twenty minutes of operation should loosen the machine to run normally with the Nozzles reinstalled Clo...

Page 14: ...a damaged Tee Housing and or Nozzle Housing Bearing pos 25 Inspect them for wear Specifically examine the condition of the external ring and internal O ring Check the Output Shaft Bearing Housing pos...

Page 15: ...ed If heating is necessary also check that the solution is at the proper temperature Plugged Nozzles Unscrew the Nozzles pos 36 and inspect for any debris Slow or no Rotation of the Housings This will...

Page 16: ...p 1 Caustic danger Always handle lye and acid with great care Always use rubber gloves Always use protective goggles Step 2 Danger of burns Never touch the pump or the pipelines when sterilizing Step...

Page 17: ...Always keep Minor spare parts kit in stock 6 1 General Maintenance Step 1 Always read the technical data thoroughly See chapter 7 Technical Data Step 2 Recommended spare parts Order service kits from...

Page 18: ...d adversely affect the seals and O rings during prolonged contact in storage The best position to store the Alfa Laval GJ is to stand it up with the inlet connection facing down Step 3 EXTERNAL INSPEC...

Page 19: ...Nozzle Carrier pos 33 1 using a 7 16 socket wrench Remove the Nameplate pos 34 Pull the Nozzle Housing Assembly Drawing 18 and the outer Labyrinth Bearing pos 25 from the nose of the Tee Housing pos 2...

Page 20: ...er in under the Tee Housing Bevel Gear pos 22 The Clutch O Ring pos 23 is directly underneath and will be damaged Inspect the Clutch O Ring pos 23 for deterioration or damage Remove only if replacemen...

Page 21: ...loss of spring tension indicated by excessive dry deposits of dirty or abrasive cleaning solution on the spring Replace as required Drawing 12 Input Pinion Shaft Assembly Inspect the Input Pinion pos...

Page 22: ...cupping and replace if necessary Drawing 16 The upper three layers of the Gear Stack are identical Each layer includes four Planet Gears pos 16 4 1 with pressed in Planet Gear Bushings pos 16 4 2 one...

Page 23: ...damaged AND the Bearing Cups are not significantly worn an arbor press can be used to press the inner Bearing Cup back into the Nozzle Carrier until the Bevel Gear is held in place If the Bevel Gear...

Page 24: ...le but the fit should not be sloppy Place one Planet Gear Washer pos 16 5 around each Idler Shaft pos 16 6 3 pos 16 8 2 on every platform then place one Planet Gear with its Gear Bushing onto each Idl...

Page 25: ...y Drawing 9 onto the Rotor Shaft pos 6 1 next making sure the Central Bearing pos 7 2 in the Rotor pos 7 1 is facing down towards the Housings Place the Lock Washer pos 5 onto the Input Shaft on top o...

Page 26: ...Place the Stem Base pos 27 onto the end of the Stem pos 15 1 The indented side of the Stem Base should be up against the Stem Align the screw holes of the two parts install the four Stem Base Cap Scre...

Page 27: ...spection insert it into the threaded side of the Collar with the fins facing down Use duckbill pliers to pinch the Stator Retaining Ring pos 2 and replace it inside the Collar pos 1 The Retaining Ring...

Page 28: ...300 PSI 3 21 bar Recommended pressure 50 200 PSI 3 5 14 bar Cleaning Pattern The above drawings show the cleaning pattern achieved on a horizontal cylindrical vessel The difference between the first c...

Page 29: ...7 Technical Data 29 It is important to observe the technical data during installation operation and maintenance Inform personnel about the technical data 7 2 Performance Data...

Page 30: ...the technical data during installation operation and maintenance Inform personnel about the technical data 7 3 Dimensions Dimensions A B C D E F G in 13 27 9 84 12 76 4 84 6 84 12 78 14 61 mm 337 250...

Page 31: ...8 Parts List and Service Kits 31 The Drawing shows Alfa Laval GJ 18 Tank Cleaning Machine 8 1 AL GJ 18 View GJ1800...

Page 32: ...32 The Drawings show the Alfa Laval GJ 18 Tank Cleaning Machine 8 2 Assembly Drawings 1 2 GJ1801 GJ1802...

Page 33: ...8 Parts List and Service Kits 33 The Drawings show the Alfa Laval GJ 18 Tank Cleaning Machine 8 3 Assembly Drawings 3 4 5 GJ1804 GJ1805 GJ1803...

Page 34: ...34 The Drawings show the Alfa Laval GJ 18 Tank Cleaning Machine 8 4 Assembly Drawings 6 7 8 9 10 11 12 13 GJ1806 GJ1807...

Page 35: ...8 Parts List and Service Kits 35 The Drawings show the Alfa Laval GJ 18 Tank Cleaning Machine GJ1808 GJ1809 GJ1810 GJ1811...

Page 36: ...36 The Drawings show the Alfa Laval GJ 18 Tank Cleaning Machine GJ1812 GJ1813...

Page 37: ...8 Parts List and Service Kits 37 The Drawings show the Alfa Laval GJ 18 Tank Cleaning Machine 8 5 Assembly Drawings 14 15 16 17 GJ1814 GJ1815...

Page 38: ...38 The Drawings show the Alfa Laval GJ 18 Tank Cleaning Machine GJ1816 GJ1817...

Page 39: ...8 Parts List and Service Kits 39 The Drawings show the Alfa Laval GJ 18 Tank Cleaning Machine 8 6 Assembly Drawings 18 19 GJ1818 GJ1819...

Page 40: ...AL SNAP RING 1 11 9614713900 18 167 INPUT SHAFT SEAL 2 12 9614636701 18 143 GEAR BOX O RING VITON 2 12 9614636702 18 143 E GEAR BOX O RING EPDM 7 457 E 2 13 9614713300 18 150 INLET COLLAR CAP SCREW 8...

Page 41: ...CUP 2 25 9614712300 18 131 LABYRINTH BEARING 4 26 9614713200 18 147 OUTPUT SHAFT LOWER BEARING 1 27 9614713100 18 146 STEM BASE 1 28 9614713400 18 151 STEM TEE HSG BASE CAP SCREW 10 29 9614713600 18 1...

Page 42: ...M 1 pcs 12 9614636702 18143E GEAR BOX O RING EPDM 7457E 2 pcs 16 4 2 9614712000 18127 PLANET GEAR BUSHING 16 pcs Article no 9614714500 18VITONKIT GJ 18 VITON MINOR KIT Pos no Part No Gamajet Part No D...

Page 43: ...ETARY WASHER 3 pcs 24 2 32 2 9614712400 18132 TEE AND NOZZLE HOUSING CUP 4 pcs 16 5 9614712900 18144 PLANET GEAR WASHER 16 pcs Article no 9614714501 18VITONMAJORKIT GJ 18 VITON MAJOR KIT Pos no Part N...

Page 44: ...protected by laws governing intellectual property and thereto related rights It is the responsibility of the user of this document to comply with all applicable intellectual property laws Without limi...

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