24
Problem
Possible Cause
Corrective Action
F/B Stuck Motor (cont.)
Robot moves:
Faulty computer board /
intermediate board
When replacing the computer
board note the software on the
defective board as well as the
position of the jumper JP1. Make
sure the software and jumper
postion are the same. Incorrect
software or jumper may cause the
machine to function improperly.
Turn power off. Locate the
computer board connection
labeled J10. Using a jumper wire
or small paperclip, connect pins 5
& 6 together through the back of
the connector. Move the robot
back 6” and turn the power on. If
the robot moves forward, replace
the computer board.
PN-19300529. If the robot does
not move forward replace the
intermediate board.
PN-49405540.
Broken / binding gear
Turn power off. Examine the front
/ back motor gear. Look for any
broken teeth. Manually move the
robot front to back. Check for
binding. If a replacement gear is
necessary, PN-49500406.
Check connection from the
Computer board to the F/B Motor.
Turn power off. Check the
computer board connection
labeled J18, the intermediate
board connections J18 and J29
and the plug at the front / back
motor. If the connections look
good check continuity from
computer board J18 pins 7 & 9 to
int. board J18 pins 7 & 9, and
from int. board J29 pins 1 & 5 to
the front / back motor connector
pins 1 & 5.
Faulty intermediate board
Turn power off. Remove the
connectors from J18 and J29 on
the intermediate board. At J18
inspect pins 7 & 9, and at J29
pins 1 & 5. Repair or straighten
any damaged pins. If any pins are
loose, replace the intermediate
board. PN-49405540.
Faulty front / back motor
Replace the F/B motor.
If the motor has a small pigtail
harness use PN-49505565.
If the connector is right on the
motor use PN-49505555.
F/B Stuck Motor
Turn machine power off.
Manually move the robot
back about 6”. Turn
power on. If the robot
does not move forward:
Faulty computer board
When replacing the computer
board note the software on the
defective board as well as the
position of the jumper JP1. Make
sure the software and jumper
postion are the same. Incorrect
software or jumper may cause the
machine to function improperly.
Replace the computer board
PN-19300529.
