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40mm balls. If unsure of ball size, check with Ball Dam.
B. Ball Speed Motor is not running. See Problem 14.
C. Friction Block is missing or not functioning properly.
See Solution 4F.
D. Ball Discharge Wheel has come off. Reattach.
E. Ball Speed Motor is running backwards. See Problem 13.
F.
Balls are too small. Check with Ball Dam. See page 11.
6.
PROBLEM
Robot shoots erratically. Some balls delivered high, others
low or off to the side or ball speed changes without the Ball
Speed knob being turned.
SOLUTIONS
A. Friction Block is dirty, worn or defective. If dirty, clean;
otherwise, replace.
B. Ball Discharge Wheel is dirty, worn, out of round,
cracked, or loose. If loose, tighten; if dirty, clean;
otherwise, replace.
C. Ball Speed Motor mounting screws are loose. Tighten.
D. Slots in Robot Head Housings for Friction Block tabs
and/or 2mm spacers of the Ball Size Switches are
worn. Replace housings.
E. Ball Discharge Spring is defective. See Solution 18F.
7.
PROBLEM
Robot shoots more than one ball at a time.
SOLUTIONS
A. Ball Discharge Spring has come off or is damaged.
Replace.
B. Using new, dirty, low quality, or oversized balls. Wash
and dry new or dirty balls. After washing new balls, be
sure to use rub down procedure. Check balls with a
Ball Dam to be sure they are the correct size and
roundness. See page 11.
OSCILLATOR PROBLEMS
8.
PROBLEM
Oscillator motor runs, but head does not move.
SOLUTIONS
A. Control Levers are set to 1,6. Reposition. See page 9.
B. A gear post, lever, or the Control Lever Adapter has
broken. Replace. See Figures B & G, pages 24 & 25.
C. Oscillator is not assembled correctly. Be sure top pin of
Pivot Guide is inserted inside the hole on the bottom of
the Oscillator Motor Cover and that the bottom pin of
the Pivot Guide is in the corresponding hole of the
Upper Guide.
9.
PROBLEM
Oscillator operates, but Oscillator Control Levers jump out
of place while oscillator is running.
SOLUTION
A. Control Levers are bent or cracked. Levers can
sometimes be bent back into shape when softened by
heating. Otherwise, replace.
10. PROBLEM
Oscillator operates, but motion is jerky and/or straining
noises are heard.
1,2
SOLUTION
A. Oscillator Motor Cover is pressing down on the
Control Levers, restricting their movement. Remove
cover and file or scrape away a small amount of the
bottom edge of the cover that is directly above the
1,2
1,2
1,2
1,2
1,2
levers.
11. PROBLEM
Robot does not deliver the ball all the way to either the left or
right corner of the table when spin is set to straight topspin
or backspin, Control Levers are set to positions 3 & 4, and
robot is in position 1 or 5 (Figure 15, page 12).
SOLUTIONS
A. See Solutions 8B, 8C, 9A, 10A, & 10B.
B. Make sure fit of Control Lever Adapter to Pivot Guide
is very tight. If loose, replace Control Lever Adapter
and/or Pivot Guide.
C. Be sure Clear Front Cover is properly attached.
D. Plastic pins on top and bottom of Oscillator Pivot
Guide are not straight and exactly perpendicular to the
top and bottom surfaces. If either pin is crooked,
replace Pivot Guide.
E. Defective Friction Block. Replace. See Figure E, pg. 24.
F.
If problem persists after eliminating all other solutions,
you may intentionally twist the robot and/or mount
the robot off-center towards the problem corner.
12. PROBLEM
Robot head drifts away from intended direction when
oscillator is turned off.
SOLUTION
A. Set Control Levers to positions 3 & 4. See page 9.
GENERAL MOTOR PROBLEMS
13. PROBLEM
Ball Speed Motor or Ball Feed Motor runs backward.
SOLUTION
A. The 5 Pin Connector is incorrectly wired or the motor
connections are reversed. In either case, switching the
wires on the motor will correct the problem. See
Figures E & J, on pages 24 & 25.
14. PROBLEM
One or two motors don't run, but the others run normally.
SOLUTIONS
A. One or more wires inside the Connector Cable are
broken. Examine the cable by plugging it in and
turning on the power. Adjust knob controlling the
inoperative motor to 10, other knobs to 0. Then twist,
turn, push, and pull a small section of cable at a time
trying to get the broken wires inside the cable to make
contact with one another. If the inoperative motor
suddenly starts running, you have found the break.
Also cable can be checked with a voltmeter. Replace.
B. Check the 5-Pin Connector to see if two of the
terminals are touching or if a wire is not soldered
securely to its terminal. If so, carefully bend the
terminals apart to keep them from touching or
resolder the connection.
C. A wire to the problem motor is unattached. Reattach.
D. Wires attached to motor are shorting each other out.
Bend terminals apart so wires don't touch each other.
E. If the problem is either the Ball Feed or Oscillator
Motor
, check the nylon transfer gears connected to
1,2
the motor for obstructions or wear. Clean and relub-
ricate sparingly with a light grease. Replace any gears
with worn teeth. See Figures B & J, pages 24 & 25.
F.
Motor is "frozen" (especially likely if robot has not
been used for awhile or is stored in a damp or humid
21
1,2
1,2
1,2
1,2
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