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VENTILATION BELT TENSION
BELT TENSION
On delivery, the drive belts are new and correctly tensioned.
After the first 50 operating hours check and adjust the
tension. 80% of the total elongation of belts is generally
produced during the first 15 hours of operation.
Before adjusting the tension, make sure that the pulleys are
correctly aligned.
To tension the belt, set the height of motor support plate by
moving the plate adjustment screws.
The recommended deflection is 16 mm per metre from
centre to centre.
Check that according to the diagram below (figure 30), the
following ratio remains the same.
P(mm) =
20
A(mm)
The belts should always be replaced when :
- the disk is set to maximum,
- the belt rubber is worn or the wire is visible.
Replacement belts must have the same rated size as the
ones they are replacing. If a transmission system has
several belts, they must all be from the same manufacturing
batch (compare serial numbers).
NOTE :
An under-tensioned belt will slip, heat and wear prematurely.
On the other hand, if a belt is over-tensioned, the pressure
on the bearings will cause them to over-heat and wear
prematurely. Incorrect alignment will also cause the belts to
wear prematurely.
Fig. 29
Fig. 30
Содержание Baltic BCK 020
Страница 1: ...BALTIC English August 2003 INSTALLATION OPERATING MAINTENANCE MANUAL ...
Страница 38: ...IOM ROOFTOP BALTIC Series 0803 E Page 37 VENTILaTION AIRFLOW BALANCING 020 025 Fig 37 ...
Страница 39: ...Page 38 IOM ROOFTOP BALTIC Series 0803 E VENTILaTION AIRFLOW BALANCING 035 030 Fig 38 ...
Страница 40: ...IOM ROOFTOP BALTIC Series 0803 E Page 39 VENTILaTION AIRFLOW BALANCING 045 050 040 Fig 39 ...
Страница 86: ...IOM ROOFTOP BALTIC Series 0803 E Page 85 CLIMATIC 50 CONTROLLER ELECTRICAL DATA wiring diagrams ...
Страница 87: ...Page 86 IOM ROOFTOP BALTIC Series 0803 E ELECTRICAL DATA wiring diagrams CLIMATIC 50 INPUT BCK BHK BGK BDK ...
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Страница 102: ...IOM ROOFTOP BALTIC Series 0803 E Page 101 EC declaration of conformity ...
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Страница 106: ...IOM ROOFTOP BALTIC Series 0803 E Page 105 EC declaration of conformity ...
Страница 108: ...IOM ROOFTOP BALTIC Series 0803 E Page 107 EC declaration of conformity ...
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