14.6 Toothed belt tension
Standard checking
Over half the tightening length S=145 the toothed belt 1 must bend
under the test load Fv=6 N so that the loaded belt just touches the
unloaded one.
Correction
–
Remove the single piping stop completely. (See chapter 14).
–
Pull the lower belt against the upper one through the opening in the
rest table by means of a spring balance.
–
Loosen 4 motor fastening screws and turn core pin 3. The belt
tension changes.
–
Tighten the screws 2 again and reinsert the single piping stop.
Consequences of a too high belt tension
–
Reduced durability of the toothed belts
–
Reduced durability of the step motor
–
Noisy running
Consequences of a too low belt tension
–
No faultless meshing
–
The teeth may skip over under load
133
2
1
3
Содержание 745-34
Страница 58: ...56 7 6 7 4 3 1 9 3 8 5 4 2 1 ...
Страница 61: ...Correction Unscrew screws 7 and take off the covering cap 6 Set the toothed belt tension with nut 10 59 10 ...
Страница 100: ...98 257 5 mm 3 2 1 4 117 5 mm 1 3 10 11 9 8 7 6 3 5 12 ...
Страница 108: ...Notes 106 ...
Страница 128: ...13 9 Error elimination a b c d e 126 2 13 1 4 3 7 6 5 12 11 10 9 8 5 6 ...
Страница 147: ...145 1 2 3 2 3 4 5 9 10 4 5 6 7 1 8 ...