grabbing the ball sufficiently. The wheels can be cleaned with solvent
cleaners such as MEK, acetone, or lacquer thinner along with sandpaper.
Cheap synthetic leather baseballs wear quickly and leave excessive
residue, so we strongly discourage their use. This includes the Wilson
A1010S. (Apparently the ‘S’ stands for synthetic.)
We have found that Jugs' Pearl brand baseballs are slicker than
standard baseballs, and because of that, they are far less accurate in our
machines than standard baseballs.
If pitches seem to wander during use, check that the aiming joint clamps
are both tight. Also check that the entire machine is not moving from
recoil. When used on a hard slick flooring surface such as hardwood or
smooth painted cement, the machine should be set on a carpet scrap or
nonslip mat.
SPEED The speed displays are very close to actual baseball pitch
speeds, but they are not exact. Softballs are thrown about 15% slower
than indicated. There is no economical way to compensate for the
different types, weights, and conditions of the variety of balls that might
be used. The speed settings are, however, very consistent and
repeatable, so that once a machine is set, it will deliver consistent speed
and accuracy.
MISCELLANEOUS
WHEEL BALANCING Our wheels are balanced 10X more
accurately than a typical car tire. Should your wheels require re-
balancing for any reason, we will do it for free. Shipping each way is not
covered. Bent or deformed aluminum wheels must be replaced.
GENERATORS This machine may be powered by a standard
household outlet or a portable gas generator. The machine will pull a
maximum continuous load of 4 Amps (480 Watts) at 120V AC, but we
recommend a generator capacity of 800W minimum. Be sure when
selecting a generator that you check the actual electric output power
rating, not the gas engine output, which is often how they are advertised.
INVERTERS You can also power your machine with a 12V battery
with a 120V AC inverter. However, only true sine wave inverters, which
are much more expensive than modified sine wave (MSW) or square
wave inverters, will work. 1000W is the minimum recommended inverter
capacity due to high startup currents.
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