TM 9-1829A, April 1944 2/100 2021-07-07
Contents
Chapter 1: Introduction ........................................................................................................................................... 7
1. Purpose and scope ..................................................................................................................................... 7
Chapter 2: Magnetic-type speedometers and tachometers; description, operation identification and testing......... 7
2. Description and operation ......................................................................................................................... 7
3. Identification ........................................................................................................................................... 11
4. Bench test procedure ............................................................................................................................... 12
Chapter 3: AC division of general motors speedometers and tachometers........................................................... 15
5. Description .............................................................................................................................................. 15
6. Disassembly. ........................................................................................................................................... 17
7. Cleaning, inspection, and repair of parts. ................................................................................................ 18
8. Assembly................................................................................................................................................. 19
9. Calibration ............................................................................................................................................... 21
Chapter 4: Auto-Lite speedometers and tachometers ........................................................................................... 23
Section I: SPA series ........................................................................................................................................ 23
10. Description ............................................................................................................................................ 23
11. Disassembly .......................................................................................................................................... 23
12. Cleaning, inspection, and repair of parts ............................................................................................... 25
13. Assembly ............................................................................................................................................... 26
14. Calibration ............................................................................................................................................. 29
Section II: SPJ, SPL and SPM series ............................................................................................................... 31
15. Description ............................................................................................................................................ 31
16. Disassembly .......................................................................................................................................... 31
17. Cleaning, inspection, and repair of parts ............................................................................................... 32
18. Assembly ............................................................................................................................................... 32
Section III: SPK, SPP and SPR Series ............................................................................................................. 34
19. Description ............................................................................................................................................ 34
20. Disassembly .......................................................................................................................................... 35
21. Cleaning, inspection, and repair of parts ............................................................................................... 37
22. Assembly ............................................................................................................................................... 37
Chapter 5: King-Seeley speedometer ................................................................................................................... 38
24. Disassembly .......................................................................................................................................... 38
25. Cleaning, inspection, and repair of parts ............................................................................................... 40
26. Assembly ............................................................................................................................................... 40
27. Calibration ............................................................................................................................................. 42
Chapter 6: Stewart warner speedometers and tachometers ................................................................................... 43
Section I: Speedometers with cup-type magnets.............................................................................................. 43
28. Description ............................................................................................................................................ 43
29. Disassembly .......................................................................................................................................... 43
30. Cleaning, inspection, and repair of parts ............................................................................................... 48
31. Assembly and calibration ...................................................................................................................... 49
Section II: Speedometers and tachymeters with flat disk-type magnets .......................................................... 56
32. Description ............................................................................................................................................ 56
33. Disassembly .......................................................................................................................................... 57
34. Cleaning, inspection and repair of parts ................................................................................................ 62
35. Assembly and calibration ...................................................................................................................... 62
Section III: Centrifugal tachometers ................................................................................................................ 70
36. Description and operation ..................................................................................................................... 70
37. Bench test procedure ............................................................................................................................. 71
38. Disassembly .......................................................................................................................................... 72
39. Cleaning, inspection, and repair of parts ............................................................................................... 73
40. Assembly and calibration ...................................................................................................................... 74
Chapter 7: Waltham speedometers ....................................................................................................................... 76
41. Description ............................................................................................................................................ 76
42. Disassembly .......................................................................................................................................... 76
43. Cleaning, inspection, and repair of parts ............................................................................................... 77
44. Assembly and calibration ...................................................................................................................... 78
Chapter 8: Stewart-Warner recorders ................................................................................................................... 80
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