Operating instructions
Table Of Contents
- 1 Introduction
- 2 General Description
- 3 Special Tools and Equipment
- 4 Disassembly
- 5 Cleaning, Repair and Replacement
- 6 Inspection
- Definitions
- Magnetic Particle Inspection
- Critical New Part Dimensions
- Fluorescent Particle Inspection
- Dimensional Inspection
- Protective Coatings
- Crankcase Inspection
- Crankshaft Inspection
- Camshaft Inspection
- Connecting Rod Inspection
- Gear Inspection
- Piston Inspection
- Cylinder Inspection
- Inspection Chart
- Crankcase Stud Heights
- Mag Particle Inspection Procedures
- Table of Limits
- Torque Specifications
- General Torques
- Table of Limits Chart
- 7 Assembly of Subassemblies
- 8 Final Assembly and Test
- 9 IO-520-M
- 10 IO-520-BB, CB and MB
4-29/4-30
FIGURE 4-25. CRANKSHAFT GROUP (TYPICAL OF PERMOLD CRANKCASE).
1. Washer, Thrust 19. Collar, 1-3-5 Side
2. Bearing, Crankshaft, Main 20. Collar, 2-4-6 Side
3. Gear, Idler 21. "0" Ring
4. Pin, Cotter 22. Dowel
5. Nut, Slotted, Special 23. Stud
6. Bolt 24. Screw
7. Cap 25. Gear, Cluster
8. Connecting Rod Assembly 26. Bolt
9. Bearing 27. Plate, Tab Lock
10. Bushing 28. Gear, Face, Alt. Drive
11. Ring, Retaining 29. Spring
12. Plate, Counterweight 30. Retaining Ring
13. Pin, Counterweight, 6th Order 31. Seal, Oil
14. Pin, Counterweight, 4th Order 32. Bushing
15. Pin, Counterweight, 5th Order 33. Dowel
16. Counterweight Assembly 34. Plug, Oil Control
17. Bushing 35. Crankshaft and Tube Assy.
18. Nut, Marsden