Driving Belt With Timing Belt System - h/p/cosmos 150/50 mercury Operating And Service Manual

Chart with tones to the corresponding frequency:
Target value
X
X
X
The frequency target value is between 98 Hz and 102 Hz. This is equivalent to the tone 1G. If the result of the test
is outside of this area, the tension of the drive belt must be adjusted.
frequency < value 98: belt tension needs correction to higher tension.
frequency > value 102: belt tension needs correction to lower tension.
The driving belt must be rechecked after changing the tension of the driving belt.
8.8

Driving belt with timing belt system

Timing belt drives have no automatic belt adjuster. The tension of the timing belt (depending on the model) must be
adjusted by the manual belt adjuster or by changing the position of the drive motor.
The driving belt tension should be checked in the same way that the running belt tension is checked.
Block the running belt at a speed of 1 - 1.5 km/h.
N
Ensure that no backlash occurs between the motor shaft and the driving belt.
N
Try to move the driving belt with thumb and forefinger 90° sidewards by using moderate force. If the angle is
N
more or less than 90°, the tension is too high or too low and the driving belt must be adjusted.
The noise (at higher speeds) and the correct course on the pinion should be considered.
N
8.9 Side step platforms: check for non-slipping
Each running machine has an anti-skid area on both sides next to the running surface. These step platforms offer safe
footing if it is necessary to suddenly leave the running surface. Check the anti-skid areas at regular intervals and replace
them at signs of wear and tear.
© 2012 h/p/cosmos sports & medical gmbh
Frequency driving
belt (Hz)
70
76
79
81
82
85
87
90
92
95
98
100
103
104
106
109
file: n:\article\cos14310m5-v1_06hpc-en\20120504_cos14310m5-v1.06hpc-en_manual_h-p-cosmos_running_machine.docx
email@h-p-cosmos.com
maintenance and safety inspections
Tone Scale
LB
2D 420
2D 455
4E 425
4E 440
4E 440
4E 447
4E 457
1G 422
1G 425
1G 432
1G 440
1G 450
1G 457
3A 425
3A 427
3A 437
HC
created 04.05.2012 printed 04.05.2012 page: 109 of 191