2
37. Changing the lower stepping motor 86
38. Changing the buttonhole sensor 88
39. Changing the thread monitor with free-arm cover by model 2044 90
40. Changing the needle threader 92
41. Self-test, foreword 93
42. Self-test model 2014 and 2024 94
43. Table for self-test model 2034 97
44. Table for self-test model 2044 100
45. Fault table for electrical parts 2044 103
Safety test
46. Electrical safety test 105
47. Electrical safety test with ABB Metrawatt M 5013 105
48. Measures required in case of inadmissible test readings 108
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