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Appendix E—Crankcase Assembly Details

Ref 

No. Part No.

Description

1.

1737

Bearing cone

2.

3638

Spacer

3.

3635

Drive sprocket

4.

1284

Crankshaft orifice

5.

2135

Drive pin

6.

2933

Link pin

7.

3786

Crankshaft

8.

3503

Flywheel key

9.

3580

Bearing cone

10. 3786-X1

Crankshaft assembly

11. 7001-031NC075A

Bolt (5/16 - 18 x 3/4" hex head)

12. 2122

Inspection cover

13. 2123

Gasket, inspection cover

14. 2-112Ac

O-ring

15. 3225-X1

Oil bayonet assembly (w/O-ring)

16. 2126

Breather ball

17.

3579

Bearing cup

18.

3589

Bearing adjustment shim (.005")

3589-1

Bearing adjustment shim (.007")

3589-2

Bearing adjustment shim (.020")

19. 3539

Bearing cover

20. 3526

Oil seal

21. 1280

Filter screw

22. 1281

Gasket, filter

23. 2-116Ac

O-ring

24. 1276

Washer

25. 1275

Oil filter screen

26. 3443

Pipe plug (1/2" NPT steel)

27. 3221

Crankcase

28. 7001-037NC100A

Bolt (3/8 - 16 x 1" hex head Gr. 5)

29. 3875

Access cover

30. 7003-025NC037E

Screw (1/4 - 20 x 3/8")

31. 3874

Gasket (access cover)

32. 1515-X

Closure cap assembly

33. 7001-025NC050A

Bolt (1/4 - 20 x 1/2" hex head)

34. 1515

Closure cap

35. 1516

Closure body

36. 2-118Ac

O-ring

37. 1290

Relief valve adjusting screw

38. 2-011Ac

O-ring

39. 1291

Adjusting screw locknut

40. 1292

Relief valve spring

41. 1293

Relief valve ball

42. 4222-Xb

Oil filter adapter assembly (w/pin)

43. 2-228Ac

O-ring

44. 2849-1Xb

Oil pump assembly

45. 2851

Spring guide

46. 2852

Oil pump spring

47. 3219

Pump shaft adapter

Crankcase Assembly Bill of Materials

Assembly 

Number

Assembly Name

3221-X1

Crankcase assembly (M, 4, 8, 9) without lubricator

3221-X2

Crankcase assembly (M7, 78) without lubricator 

3221-X3

Crankcase assembly (L, 4, 8, 9) with lubricator

3221-X4

Crankcase assembly (L7, 78) with lubricator

Must be rebored and honed after replacing (0.876"/0.875" diameter)

Caution: To avoid damage during assembly, refer to installation 
Instruction Manual IE400.

See O-ring chart above for details.

 

 

WARNING

Always relieve pressure in the unit before attempting any 
repairs.

Ref 

No. Part No.

Description

48. 2-112Ac

O-ring

49. 2805-Xa

Pump shaft bushing

50. 1629

Pipe plug (1/16 NPT fl. seal)

51. 1736

Bearing cup

52. 1302

Oil pressure gauge

53. 1044

Bushing (1/8 x 1/4 NPT)

54. 3220-2

Bearing carrier

55. 3289

Pipe plug (1/4 NPT fl. seal)

56. 2131

Bearing carrier gasket

57. 2961-X

Air release valve assembly

58. 2590

Pipe plug (1/8 NPT fl. seal)

59. 4225

Filter

60. 2798

Pump cover pin (included w/4222-X)

61. 3220-2X

Bearing carrier assembly

62. 4222

Oil filter adapter

63. 3289

Pipe plug (1/4" x 18 NPTF x 7/8")

O-ring Code

A

Buna-N

37

Summary of Contents for WFD551

Page 1: ...nstructions applicable laws and safety standards such as NFPA Pamphlet 58 for LP Gas and ANSI K61 1 1972 for Anhydrous Ammonia 4 Transfer of toxic dangerous flammable or explosive substances using Cor...

Page 2: ...ucts are not covered by this limited warranty and purchaser must look to the original manufacturer s warranty if any This limited warranty is void if the Corken product has been altered or repaired wi...

Page 3: ...nment 10 2 3 Crankcase Oil Pressure Adjustment 11 2 4 Startup Check List 11 CHAPTER 3 ROUTINE MAINTENANCE CHART 12 CHAPTER 4 ROUTINE SERVICE AND REPAIR PROCEDURES 13 4 1 Valves 13 4 1 1 Reverse Unload...

Page 4: ...shock endurance Self lubricating PTFE piston rings Corken provides a variety of state of the art piston ring designs to provide the most cost effective operation of compressors for non lube service Th...

Page 5: ...After leveling and bolting down the baseplate the volume beneath the channel iron baseplate can be grouted to prevent flexing of the top portion of the baseplate and the J bolt that extends beyond th...

Page 6: ...wheel Humid climates can cause problems with explosion proof motors The normal breathing of the motor and alternating between being warm when running and cool when stopped can cause moist air to be dr...

Page 7: ...details on specific packing configurations necessary for your application Moisture oil or condensate can be removed from the distance piece with the purge gas by using the lower distance piece connec...

Page 8: ...oil pressure falls below 12 psi due to oil pump failure or low oil level in crankcase The switch or the compressor controller must have a 30 second delay on startup which allows the compressor to buil...

Page 9: ...and gas flow D C B A Flywheel side Gas inlet first stage inlet Connected to intercooler outlet second stage inlet Connected to intercooler inlet first stage outlet Gas outlet second stage outlet Wate...

Page 10: ...verify that the cylinder bore and valve areas are free of rust and other debris For valve and or cylinder head removal instructions refer to chapter 4 of this IOM manual Drain the oil from the crankca...

Page 11: ...ef valve and adjustment screw Figure 2 3 Oil pressure adjustment 2 4 Startup Check List Please verify each item on this list below before starting your compressor Failure to do so may result in a cost...

Page 12: ...ccumulation points 3 Drain distance pieces Clean cooling surfaces on compressor and intercooler if any Lubricator supply tank level if any Check belts for correct tension Inspect valve assemblies Lubr...

Page 13: ...g and inspecting the valves begin by depressurizing and purging if necessary the unit Chapter 4 Routine Service and Repair Procedures Disassembly 1 Unscrew the valve cap or unloader if applicable asse...

Page 14: ...is in an unloaded condition see Figure 4 1 1 for details 4 2 Heads A compressor cylinder and head very seldom require replacement if the compressor is properly maintained The primary cause of damage t...

Page 15: ...turn at a time do not over tighten If the adjusting screw is tightened until the packing spring is solid the packing should be replaced If packing will not seal carefully inspect piston rods for possi...

Page 16: ...inder as necessary The pistons must not touch the cylinder wall 4 After the cylinder is properly aligned to the pistons tighten the bolts using the torque specification listed in Appendix B Start in t...

Page 17: ...asher and install retainer ring 4 Install packing installation cone part number 4005 over the threaded end of the piston rod 5 Before installing the packing box cartridge over the packing cone and pis...

Page 18: ...en remove the bearing carrier and crankshaft from the crankcase If corrosion or pitting is present the roller bearings should be replaced When replacing roller bearings always replace the entire beari...

Page 19: ...4 8 When you are sure the pin is properly aligned install the cover bolts finger tight If alignment is correct the pump cover will mount flush to the bearing carrier If it does not re check the pin a...

Page 20: ...al B Copper gasket material C Iron lead gasket material D Buna N A Charge option Charge option No charge option Standard Charge option Charge option Charge option Charge option Charge option Standard...

Page 21: ...iron ASTM A48 Class 30 2nd stage platform Ductile iron ASTM A536 Piston rod C1050 steel Nitrotec coated Chrome oxide coated Crosshead Ductile iron ASTM A536 Piston rings PTFE glass and moly filled All...

Page 22: ...11 6 19 7 maximum 825 RPM 24 0 40 8 Maximum working pressure psig bar g 1 000 68 9 Maximum brake horsepower kW 45 33 6 Maximum rod load lb kg 7 000 3175 Maximum outlet temperature F C 350 177 Approxim...

Page 23: ...e to reach its own level Pipe to drain or vent with a shut off valve Distance piece must be drained weekly to prevent an accumulation of oil or condensate Spring Spring 2 Highly toxic gases Pressurize...

Page 24: ...4 19 50 495 30 18 34 465 84 8 50 215 90 4 38 111 13 47 51 1 206 68 42 87 1 088 90 2 13 53 96 1 00 25 40 19 06 484 02 1 00 25 40 9 13 231 78 10 11 256 83 5 38 136 53 8 24 209 39 39 27 997 35 3 50 88 9...

Page 25: ...ng 1 2 NPT optional Use six 1 2 anchor bolts Electric motor driver Pipe tap Adjustable driver slide base Crankcase heater optional Gas inlet 1 600 lb R F ANSI flange Connect to intercooler outlet 1 60...

Page 26: ...t factory 6 Compression ratio too high Check application and consult factory 7 Loose flywheel or belt Tighten 8 Worn piston rod packing Replace 9 Worn wrist pin or wrist pin bushing Replace 10 Worn co...

Page 27: ...scription Qty 1 2136 Center head bolt 1 2 5283 Head 1 3 2 259 O ring 1st stage 1 4 2 255 O ring 2nd stage 1 5 2 116 O ring 3 6 2825 Pipe plug 1 1 2 NPT 6 Head Assembly Bill of Materials Ref No Part No...

Page 28: ...5276 Unloader piston spec 6P 1 8 5000 87SS Retainer ring 1 9 5280 Unloader washer 1 10 5278 X Piston seal assembly 2 11 5345 Unloader body spec 6P 1 12 5281 Unloader washer 1 13 5000 150SS Retainer r...

Page 29: ...20 x 3 8 1 5 5272 Unloader piston cap 1 6 5279 X Piston seal assembly 1 7 5276 Unloader piston spec 6P 1 8 5000 87SS Retainer ring 1 9 5280 Unloader washer 1 10 5278 X Piston seal assembly 2 11 5345 U...

Page 30: ...nal 4 8 5318 3X2 Discharge valve assembly 2 Ref No Part No Description Qty 1 3856 3X2 Suction valve assembly 2 2 3856 Valve seat 4 3 3920a Valve stud 4 4 4230 Inner valve plate 4 5 4229 Outer valve pl...

Page 31: ...ring 1773 PTFE std 3 1771 PTFE std 3 1773 2 Alloy 50 opt 3 1771 2 Alloy 50 opt 3 1773 3 PEEK opt 3 1771 3 PEEK opt 3 5 Locknut 1482 1 1482 1 6 Lock pin 1483 1 1483 1 7 Shim washer thick 1735 As req 65...

Page 32: ...1a c Wrist pin bushing 8 3542a Connecting rod bearing Connecting Rod and Crosshead Assembly Bill of Materials a Included with connecting rod assembly b Torque connecting rod nut to 40 ft lbs c Must be...

Page 33: ...5000 175 Retainer ring 2 1728 Washer 3 1731 Spring 4 1724 Male packing ring 5 1725 V ring packing 6 1723 Female packing ring 7 1751 Cartridge 8 1722 X Adjusting screw 9 1725 2X V ring packing set 10...

Page 34: ...x 1 3 4 ferry head 16 16 3443 Pipe plug 1 2 NPT 2 17 3442 Pipe plug 1 4 NPT 3 18 1748 Cartridge plate 2 19 5000 350 Retainer ring 2 20 1761 Crankcase gasket 1 21 1760 Inspection plate gasket 1 22 172...

Page 35: ...el Assembly Details for Model WFD551 Flywheel Assembly Bill of Materials Assembly Number Assembly Name 1762 X Flywheel assembly flywheel hub and three bolts 1762 Flywheel 19 5 O D 4 groove H E 2 125 H...

Page 36: ...4 45 46 47 48 42 51 49 56 50 36 32 59 55 33 60 62 42 28 55 61 Includes all parts shown except 52 and 53 50 58 Inside of Bearing Carrier Pump Cover Oil Filter Adapter Oil Passage Hole Pumpside of adapt...

Page 37: ...sting screw locknut 40 1292 Relief valve spring 41 1293 Relief valve ball 42 4222 Xb Oil filter adapter assembly w pin 43 2 228Ac O ring 44 2849 1Xb Oil pump assembly 45 2851 Spring guide 46 2852 Oil...

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Page 40: ...KEN INC A Unit of IDEX Corporation 9201 North I 35 Service Road Oklahoma City OK 73131 Phone 405 946 5576 Fax 405 948 7343 Visit our website at www corken com or e mail us at cocsalesdept idexcorp com...

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