JUGS Sports Curveball (2 wheel) Pitching Machine - Manual (Page 23)

Figure 7 (on the next page) is a detailed chart which depicts approximately how
fast, in miles per hour, a JUGS Curveball or JUGS Combination pitching machine
is throwing, when the dials are set in various positions.
The speeds listed, in miles per hour, are the average speeds of five throws, at
each of the respective dial settings.
The “speed-to-dial settings” ratio will vary somewhat depending on the air pres-
sure in the tires, the type of ball used, and the way in which the ball is fed into
the pitching machine. This chart will give you a fairly close approximation of the
ball speed.
Tennis balls
Tennis balls can be thrown in this machine. However, you must first inflate the
tires to a pressure of 25 pounds per square inch (psi). Start with a 60-60 setting
for straight balls and 50-70 for curves. (Regular curveball settings are too much
for the tennis balls.) Be sure to deflate tires to 16-17 pounds for baseball use and
reset the speed dials 35 digits apart before using baseballs.
NOTE: For Polyball (Whiffle type only) Use: Set dials no more that five (5)
digits apart. Be sure to reset speed dials 35 digits apart before use with
baseballs.
IMPORTANT:
If machine becomes wet during practice, turn off machine immediately, and
transport it to a clean, dry location. Dry surface water with a soft, clean cloth and
permit machine to completely air dry before next use.
21
Operation