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26.12.2011
LFM-02-e
Rev Nr: 7
2.6.3
Changing rotation direction of the meter
Default from factory Yenen meters rotate anti-clock wise or clock wise if so specified at the time of
order. Several pulse generators may require alternative direction. The drawing below explains how
the change the rotation direction.
The distribution valve is one of the most critical parts of the meter. Incorrect installation of the
distribution valve will affect the accuracy of the meter.
The distribution valve has a precision polished surface. Even the slightest scratch or unevenness
will cause inaccuracy of the meter.
Recalibration after re-assembly of the meter is recommended.
Meter rotates clock wise Meter rotates counter clock wise
Figure 4: Rotation direction
To change the rotation direction (
default from factory is CCW
):
1. Unbolt the upper body
2. Face the inlet towards you
3. Remove the upper body
4. Lift the distribution valve from the carbon plate and rotate the distribution valve 180
ｺ
5. Reposition the distribution valve fitting it onto the crankshaft
6. Adjoin the upper body with the inlet towards you
7. Bolt the upper body tightly to the main body.
