Vogelsang VX Series, Manual

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Service Manual
Service Manual
Pump Models:
VX Series Q Pumps
Rotary Lobe Installation
Install a key or keys ( Fig
36 ) into the shaft keyway.
Take care to insure it is
flush with the front end of
the shaft.
With the aid of a brush,
lubricate the shaft, key,
and insides of the lobes
with oil. Install the lobes
(
Fig 37 ) taking care that
the inside lip is facing you.
Pumps equipped with only
two lobes should have a
right lobe on the top,
and left lobe on the
bottom shaft
.
For pumps with multiple
sets of lobes mounted on
each shaft, start with a
right lobe on the top shaft
and a left lobe on the
bottom shaft. Install the
next set using a left lobe
on the top shaft and the
right lobe on the bottom.
Alternate this way until all
lobes are installed. The
sides of the lobes should
form a “V” shape.
Fig. 36
Fig. 37
Inside Lip