REGULATING WHEEL SPEED
The rotational speed of the regulating wheel is infinitely variable from
approximately 30 RPM to 320 RPM when equipped with a 10:l gear head at 60
Hz; or from Oto approximately 500 RPM when equipped with a·hydraulic drive.
The top speed will only be used, (under normal conditions) when re-dressing
the face of the.regulating wheel. The normal operating speed will generally
be approximately 160 RPM.
The rotational speed is an area which calls for some trial settings for
each job, in order to determine the best rotational speed for satisfactory
stock removal correlated with infeed speed of the ram.
REGULATING WHEEL OVERSPEEDING
(Electric Regulating Wheel Drive Only)
In an especially dirty environment such as occurs with grinders, often
grit will lodge in the narrow gap between the rotor-quill assembly and
the field-shaft assembly of the DYNAMATIC. This gap is very small and
the presence of sufficient grit can cause the two assemblies to bind
and rotate as a single unit. This will cause the DiNAMATIC, and therefore
the regulating wheel, to run at full speed, with no control being
effected by the potentiometer. This situation can usually be resolved
by blowing air from a shop airhose through the DYNAMATIC's vent slots
at the end opposite the right-angle drive. The blast of air should
clear away any lodged grit, freeing the assemblies.
POSITIONING THE REGULATING WHEEL UNIVERSAL
Position the transmission case or hydraulic.motor bracket so that the
universal assembly is approximately straight during the grinding portion
of the stroke.