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INSTALLATION
12
November 2011 / W-BD3.5/W-BD5 BeltPower / EN
idler tensioner pulley. The idler tensioner
pulley also
extends the contact area between V-belt and pulley.
When the generator is not connected to the engine block,
but mounted next to the engine block a V-belt tensioner
must be applied. To prevent damage induced by vibrations
the mounting bracket parts must be installed without build-
in tension.
Figure 15: Idler tensioner
Be aware that while changing the load on the
generator the belt can strike violently on the
non-pulling side.
Tighten the belt according to the instruction of the
manufacturers recommendations. A belt too tight or too
loose will reduce the life of the belt and generator and will
impair the performance of the generator.
6
Pulleys
A poly V belt pulley with 6 groves and a diameter of 60 mm
and an overhang of 5 mm. (refer to the figure 14).is
recommended. A 6-grove pulley 50 mm is the minimum
diameter that can be applied.
Other pulleys are available on request.
When applying a double grove classic V-belt, a diameter of
75 mm is recommended. In this case 70 mm is the minimum
diameter. Refer to the table for available pulleys:
Type
diameter overhang Art No
Poly V 6 grove
60 mm
5 mm
41301050
Poly V 6 grove
50 mm
5 mm
41301051
Poly V6 grove OAP*
60 mm
Double V 12.7 mm
70 mm
41301052
Overrunning Generator Pulley OAP*
Available on request is an Overrunning Generator Pulley
or OAP which
absorbs vibrations in the belt drive system.
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Figure 16: Overrunning Alternator Pully