Manual DKN XC-140i (page 110 of 112) (English, German, Dutch, French, Italian, Spanish)

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Nr Description Specification Q'ty

1 main frame 1

2 front stabilizer 95.4*50.6*2.0T*450 1

3 flat washer D16xD8.5x1.2T 8

4L left end cap 103*68*83 1

4R right end cap 103*68*83 1

5L left front cap 123*70*110 1

5R right front cap 123*70*110 1

6 spring washer D15.4xD8.2x2T 18

7 curved washer D22xD8.5x1.5T 12

8 buffer D9*D5.8*13 2

9 allen bolt M8x1.25x20L ,8.8 16

10 front post 1

11 pedal support 2

12 swing tube 2

13 bearing #99502ZZ 8

14 bearing #2203-2RS 2

15 end cap D25.4*31L 2

16 idle wheel D44*21L, 6002ZZ 1

17 allen bolt M8x1.25x100L,8.8 2

18 nylock M8*1.25*8T 2

19 rear stabilizer 95.4*50.6*2.0Tx500L 1

20 carriage bolt M6*1*45L 4

21L left pedal 420*130*85 1

21R right pedal 420*130*85 1

22 adjuster wheel D59*M10*40L 2

23L left upper foot cover 80*55*87 2

23R right upper foot cover 80*50*87 2

24 anti-loose nut M10*1.25*10T 2

25 motor 1

26 motor D22.5*D18.5*1.2T 2

27 c ring 800L 1

28 computer wire 500L 1

29 computer wire (lower) 1000L 1

30 sensor cable 1050L 1

31 pedal axle D46x44 2

32 round end cap D45*15 2

33L left crank 1

33R right crank 1

34 c ring S-40(1.80T), D40 2

35 belt 1651 pj6 1

36L left chaincover 1168.5*547.5*66.5 1

Nr Description Specification Q'ty

36R right chaincover 1168.5*547.5*62.5 1

37 flywheel D300*32 1

38 flat washer D24*D16*1.5T 1

39 side cover D36*16 2

40 bolt M8*1.25*20L 4

41 cross screw ST4.2x1.4x20L 6

42 disc D456*29 2

43 bearing #6004ZZ 2

44 bolt M8*52L, 15MM 1

45 nylock M8*1.25*8T 2

46 flat washer D28*D8.5*3T 1

47 waved washer D21xD16.2x0.3T 3

48 flat washer D13*D6.5*1.0T 1

49 upper cover 1332 1

50 C ring S-15(1T) 2

51 spring D1.0*55L 1

52L left swing 1

52R right swing 1

53 foam D30x3Tx680L 2

54 foam D23x5Tx530L 2

55 top end cap D1 1/4"*45L 2

56 spring D3*D19*67L 1

57 cross screw ST4.2x1.4x20L 4

58 cross screw ST4x1.41x20L 8

59 bolt

M8*1.25*50L,8.8

1

60 flat washer D21*D8.5*1.5T 4

61 crank axle D20*116L 1

62 magnet

M02

1

63 cross screw ST3.5*1.27*15L 8

64 computer SM-2503-71 1

65 handpulse WP1007-12B 2

pulse wire 600L 2

66 flat washer D50*D10*1.0T 1

67 front computer cover 380*150*50 1

68 rear computer cover 340*150*50 1

69 front pedal axle D15.85x63.2L 2

70 idle fixing plate 1

71 waved washer D27*D21*0.3T 1

72L left handlebar 1

72R right handlebar 1

73 flat washer D14xD6.5x0.8T 4

Nr Description Specification Q'ty

74 left cap 115x95x43 2

75 right cap 115x95x43 2

76 cross bolt M5x0.8x12L 1

77 knob D40*M6*12 4

78 adaptor 9V 1

79 plastic cover D3*30L 1

80 round cross screw ST4x1.41x20L 2

81 insert D71.5*108L 1

82 nylock M6*1*6T 1

83 allen bolt M8x1.25x30L ,8.8 1

84 c ring S-16(1T) 2

85 bolt M6*65, 8.8 1

86 allen nut M6*1*6T 1

87 washer D6*D19*1.5T 1

88 magnet bracket 1

89 allen nut M8*1.25*6T 2

90 round cross screw M5x0.8x10L 2

91 round cross screw ST4x1.41x15L 2

92 fixing nut D15*13L 1

93 tension cable D1.5x800L 1

94 adjuster D50*D10*3T 1

95 washer D25*D8.5*2T 4

1

In use there is a loud bang when the footrest axle on the flywheel side passes the 9 o'clock position. Sounds as if something is catching or binding and the loud bang occurs when it's released. I've removed the footrests and the plastic casing to expose the belt, magnetic drive and the flywheel but not the plastic covers on the flywheel. When the flywheel is rotated with just the free crank axle the loud bang occurs when, on the flywheel side, the crank passes the 9o'clock position. However, despite careful inspection when the flywheel is rotating no obstruction or binding can be seen. All I can suggest is that the noise is in someway related to turning of the flywheel axle. Haven't removed the retaining nut to the axle as I don't have a socket that fits and it seems to be the only nut near part No 71 on the schematic that is not numbered. Two questions:
1. what is the size of the retaing nut on the flywheel axle?
2. Any knowledge/suggestions as to what is causing the noise?
Anthony Submitted on 29-12-2021 at 18:20
Reply Report abuse
- More information from original submitter:
  Managed to find an old box spanner and was able to remove the two end nuts on the large flywheel pulley. Wasn't able to remove the flywheel pulley on the opposite side to the belt drive. However, did manage to remove and then refit the rubber drive belt. When the drive belt is off, the flywheel pulley rotates easily, fast and, more importantly, there is no loud bang - I'm assuming that a ball race is fitted on the axle which indicates to me that it is in good condition. When the rubber belt was refitted and the flywheel turned the loud bang returned when the foot rest axle passed the 9 o'clock position!!! How do you remove the flywheel pulleys? Answered on 30-12-2021 at 14:24
  Vote up Report abuse

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