Zooka Sports ZS 720, Руководство пользователя

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PAGE 22
Troubleshooting - continued
Pitching-related Symptom Solution
Some balls do not throw straight. Refer to page 14, “Selecting the Type of Ball,” to make sure that the ball is
an approved type and size for the pitching machine.
Look the ball over. Discard worn or damaged balls. Do not use balls that are
irregular in shape or have unusually large seams. Use a clean cloth to wipe
dirt off balls prior to using them.
Some throws are duds. A hollow sound occurs and the ball’s momentum slows. The ball is not
seating properly in the cup. Most duds result from rolling the ball into the
barrel too quickly, especially at low pitching angles. First try rolling the ball
in more slowly. If that doesn’t work, try rolling the ball in more quickly.
Look the ball over. Discard worn or damaged balls. Do not use balls that are
irregular in shape or that are too large.
For speeds over 50 mph, try moving the machine 10 feet further from the
plate and slightly increasing the angle of the pitch. Refer to “Changing the
Pitch Angle.”
If the pitcher’s mound is raised, place the tripod either behind the mound or
in front of the mound to avoid pointing the barrel of the machine downward.
Cup comes all or part way out Turn OFF the machine. Remove the cup (page 24). Clean the barrel and
of the barrel cup. Replace worn or damaged cups.