Lincoln SKF 84803 User And Maintenance Instructions Download

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User and maintenance instructions

Models 84803, 84804, 84806, 84808, 86810

3-, 4

-, 6-, 8-

and 10-in air motors

Date of issue

September 2020

Form number

404192

Version

Summary of Contents for SKF 84803

Page 1: ...User and maintenance instructions Models 84803 84804 84806 84808 86810 3 41 4 6 8 and 10 in air motors Date of issue September 2020 Form number 404192 Version 4 ...

Page 2: ... air line 7 Operating precautions 7 Attach air motor to pump tube 7 Service and disassembly procedure 8 Power valve 8 Pilot bar subassembly 9 Cylinder tube and muffler 10 Service and assembly procedure 11 Cylinder tube and muffler 11 Pilot bar subassembly 12 Power valve 13 Parts list 18 Series III air motor kits 19 Series III air motor assemblies 19 Troubleshooting 20 Warranty 24 2 ...

Page 3: ...irectives Machinery Directive 2006 42 EC And was evaluated using the following harmonized EN standards EN ISO 12100 2010 EN ISO 4413 2010 EN ISO 809 1998 A 2009 SKF declares under its sole responsibility that the Air motor model s 84803 84804 84806 84808 and 86810 are in conformity with the Machinery Directive 2006 42 EC In the case of modifications or alterations of the above mentioned machine no...

Page 4: ...R Indicates a dangerous situation that will lead to death or serious injury if precautionary measures are ignored WARNING Do not exceed stated maximum working pressure of air motor or of lowest rated component in system Do not alter or modify any part of this equipment Do not operate this equipment with combustible gas Do not attempt to repair or disassemble equipment while system is pressurized T...

Page 5: ...4804 4 1 4 108 14 90 30 to 200 2 to 14 30 to 200 34 to 93 1 2 13 1 2 1 1 32 84803 3 76 7 45 30 to 200 2 to 14 30 to 200 34 to 93 3 8 10 1 2 0 7 20 1 PTFE seals used with power valve spool 14 and relay valve 26 Indicates change Table 2 Specifications continued Model Maximum recommended speed cycles min Stroke length Weight Seal material 1 Dimension A B C in mm lb kg in mm in mm in mm 86810 75 6 152...

Page 6: ...esponding soft parts kit For assemblies and soft parts kits Series III air motor kits page 19 Fig 3 Relay valve 26 Fig 4 Air signal valve 32 Fig 5 Muffler 22 Shown with gasket 20 For assemblies and soft parts kits Series III air motor kits page 19 Fig 6 Power valve subassembly For assemblies and soft parts kits Series III air motor kits page 19 Fig 7 Power valve spool and body 14 NOTE Replace all ...

Page 7: ...nsure proper air motor operation Operating precautions Use Lincoln replacement parts to assure compatible pressure rating Comply with all warnings Do not operate air motor in excess of recommended pressure range Disconnect air line and relieve vent pressure when air motor sits idle for long periods of time and before servicing Attach air motor to pump tube 1 Tightly attach connecting rods 48 to ai...

Page 8: ... complete disassembly Fig 9 Power valve 1 Remove four screws 11 and 19 two on each side Fig 9 2 Remove end caps 12 and 18 3 Push out valve spool 14 4 Remove spool bumpers 13 one from each end 5 Remove o ring 15 one from each end 6 Remove four screws 16 and lift valve body 17 7 Remove gasket 10 to complete valve disassembly WARNING Do not check service or repair any part of motor with air supply co...

Page 9: ...33 2 Pull out pilot bar subassembly 35 and remove o rings 29 34 36 and 39 3 Remove two screws 37 and lift off relay valve 26 4 Remove o rings 27 and 29 from upper bracket 30 5 Remove four screws 28 two on upper bracket 30 and two on lower bracket 33 6 Lift off upper bracket 30 and lower bracket 33 7 Remove o rings 27 and 29 and two air signal valves 32 Fig 10 9 ...

Page 10: ...nd lower casting 44 8 Remove o rings 41 9 Lift upward and remove upper casting 7 10Remove o ring 2 11Remove upper piston seal 3 12Remove piston and piston rod 1 from rod bearing 46 13Remove lower piston seal 3 14Remove cylinder seal 43 on top of cylinder tube 50 15Lift upward and remove cylinder tube 50 16Remove remaining cylinder seal 43 and rod bearing 46 17Remove adapter 45 from bottom of lower...

Page 11: ...ing 46 8 Place upper piston seal 3 on top of piston rod assembly 1 9 Lower cylinder tube 50 into position on lower casting 44 10Insert cylinder seal 43 on top of cylinder tube 50 11Place o ring 2 on top of piston 1 12Insert o ring 41 into lower casting 44 13Screw in air tube 42 to lower casting 44 14Place remaining o ring 41 on top of air tube and screw air tube into upper casting 7 15Insert four ...

Page 12: ...r signal valve 32 to bottom of pilot bar subassembly 35 4 Place o ring 27 in slot of lower bracket 33 and tighten to bottom of pilot bar subassembly 35 with two screws 28 5 Insert o rings 27 and 29 and tighten relay valve 26 to top of pilot bar subassembly 35 with two screws 37 6 Position o rings 29 34 36 and 39 with appropriate slots and slide two screws 31 through lower bracket 33 and two screws...

Page 13: ... Align valve body 17 with gasket 10 and secure to upper casting 7 with four screws 16 3 Insert valve spool 14 to valve body 17 4 Place o rings 15 into slot on each end of valve body 17 5 Insert spool bumbers 13 one on each end 6 Align end caps 12 and 18 and secure with four screws 11 and 19 two on each end 13 ...

Page 14: ...0 only 2 Torque 4 8 and 9 as shown in Table 3 3 Torque 10 to 12 lbf ft 14 to 16 Nm 4 Torque to 50 lbf in 6 Nm After 24 hours torque to 50 lbf in 6 Nm 5 Align two holes on cylinder tube 50 with two holes on pilot bar 35 before tightening tie rods 4 so proper seal with o rings is achieved Fig IPB 1 Table 3 Model Item number Torque to lbf ft Nm 84803 8 11 15 84804 8 11 15 84806 8 26 35 84808 8 53 72 ...

Page 15: ...3 1 36 1 35 33 45 50 46 49 Fig IPB 2 Models 84803 and 84804 1 Assemble adapter to piston rod using thread locker on threads Torque 60 to 65 lbf ft 81 to 88 Nm 15 ...

Page 16: ...15 17 14 15 13 12 13 7 2 27 18 26 37 30 36 35 33 34 10 50 39 29 43 41 42 1 41 43 46 49 44 27 32 34 27 36 Fig IPB 3 Models 84806 84808 and 86810 16 ...

Page 17: ... 1 19 20 31 47 37 29 40 27 8 29 21 31 35 28 40 27 48 9 51 1 52 53 54 55 Fig IPB 4 1 Torque 10 to 12 lbf ft 14 to 16 Nm Fig IPB 5 Piston assembly for model 86810 1 Torque 115 to 125 lbf ft 156 to 170 Nm 17 ...

Page 18: ...84967 3 84967 3 84967 3 84967 3 84967 3 28 Screw 10 32 1 in 4 50823 50823 50823 50823 50823 29 O ring Nitrile 4 84967 3 84967 3 84967 3 84967 3 84967 3 30 Bracket upper 1 241784 241784 241784 241784 241784 31 Screw 1 4 20 7 8 in 4 50526 50526 50526 50526 50526 32 Air signal valve 2 241768 241768 241768 241768 241768 33 Bracket lower 1 241785 241785 241785 241785 241785 34 O ring Nitrile 3 84967 3 ...

Page 19: ...three of the common kits power valve pilot bar and muffler element listed Series III air motor assemblies Used on model Description Kit number All series III air motors Air signal valve 241768 84804 Pilot bar subassembly 242786 84806 Pilot bar subassembly 242786 84808 Pilot bar subassembly 242786 84610 Pilot bar subassembly 242786 All series III air motors Relay valve 242787 All series III air mot...

Page 20: ...recommended level Check air supply hose diameter and change it to minimum recommended size see specifications Check size of FRL and Quick disconnect coupling Replace if small size or restricted Erratic or accelerated operation with short stroking Dirty or damaged relay valve 26 or air signal valve 32 Check valves and clean if necessary Replace any damaged seals or worn parts 20 ...

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Page 24: ...en taken to ensure the accuracy of the information contained in this publication but no liability can be accepted for any loss or damage whether direct indirect or consequential arising out of the use of the information contained herein September 2020 Form 404192 Version 4 Warranty The instructions do not contain any information on the warranty This can be found in the General Conditions of Sales ...

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