Nordson_EFD_Automated_Dispensing_Systems_Maintenance_Guide.pdf - 第29页

29 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide. Automated Dispensing Systems Maintenance & Parts Guide Timing Belt and Motor Repl…

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Automated Dispensing Systems Maintenance & Parts Guide
28 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
Timing Belt and Motor Replacement: ZAxis (continued)
Replace the ZAxis Motor (E2 / E2V Units Only)
17
Disconnect the Zaxis motor cable.
Zaxis
motor cable
18
Release the four (4) screws that fasten the
motor to the Zaxis module.
This loosens the motor enough to remove the
timing belt from the timing pulley, at which point
the motor can be completely removed from the
robot.
19
Remove the two (2) set screws on the timing pulley and then pull the timing pulley away from the
motor.
20
a. Assemble the timing pulley onto the shaft of
the new motor; align the timing pulley such
that the two (2) set screws contact the two
flat surfaces of the motor shaft.
b. Ensure that the distance from the base of
the timing pulley to the top of the motor is
3.5 mm (0.14").
3.5 mm (0.14")
21
Adjust the motor to the upright position and
tighten the four (4) screws that fasten the motor
to the Zaxis module.
NOTE: The tension is not measured for this
belt.
Reinstall the ZAxis Cover
22.
a. Reinstall the Zaxis cover.
b. Secure the cover with the screws removed
previously.
b
a
b
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Automated Dispensing Systems Maintenance & Parts Guide
Timing Belt and Motor Replacement: R / RV Series Z and R Axes
NOTE: This procedure applies only to R / RV Series units.
CAUTION
Risk of injury or equipment damage. Before performing any service procedure, complete the steps under
“Preparation for all Service Procedures” on page3.
Remove the ZAxis Cover (R / RV Series Only)
1
a. Remove the 10 screws that secure the
Zaxis cover to the Zaxis module.
b. Carefully pull up vertically to remove the
Zaxis cover.
NOTE: Removing the four (4) screws near
the bottom of the Zaxis cover releases
the Zaxis bottom plate; place your hand
underneath the plate to catch it.
NOTE: The Zaxis module can be in
any position along the Xaxis during
maintenance.
ba
Replace the ZAxis Timing Belt (R / RV Series Only)
2
a. Release the four (4) screws on the motor
fixing base. This loosens the timing belt
enough to remove it from the idler and
timing pulleys.
NOTE: The screws only needs to be
loosened, not completely removed.
b. Remove the old timing belt from the idler
and timing pulley.
Timing belt
b
a
Motor fixing
base
3
With the sawtooth sides of the new timing belt
facing one another, loop the belt around the
idler and timing pulleys.
4
Secure the motor fixing base to the Zaxis
module as follows:
a. Tighten the two (2) horizontal screws to
secure the timing belt.
b. Tighten the two (2) vertical screws to secure
the motor fixing base to the Zaxis module.
NOTE: The tension is not measured for this
belt.
Timing belt
a
Motor fixing
base
b
a
b
Continued on next page
Automated Dispensing Systems Maintenance & Parts Guide
30 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
Replace the RAxis Timing Belt (R / RV Series Only)
5
Disconnect the following cables:
• Motor Z
• Motor R
• Sensor V (Raxis reversal optical switch)
• Sensor R
• Sensor Z
NOTE: All sensors must be disconnected to
allow sufficient movement of the Zaxis module
in future steps.
Sensor V
Motor Z
Motor R
Sensor R
Zaxis
module
Sensor Z
6
CAUTION
Risk of equipment damage or personal injury. The
Zaxis module is heavy and will fall if not held. A
second technician should hold the Zaxis module
during disassembly.
Release the four (4) screws that fasten the
Zaxis module to the robot assembly.
NOTE: If the wires for Sensor R, Sensor V, and
Motor R are connected to the Zaxis module,
the mobility of the module will be limited and
the following steps will have to be performed
with the module near the robot.
Zaxis module
front view
Zaxis module
back view
Raxis
module
7
Tightly grasp the Raxis module and then
release the two (2) screws on the back side of
the Zaxis module to release the Raxis module.
NOTES:
• Releasing the Raxis module provides enough
mobility so the Raxis timing belt can be
removed from the pulley on the Raxis motor.
• The Raxis timing belt will be free but
constrained around the Raxis ball spline.
Timing Belt and Motor Replacement: Z and R Axes (continued)
Continued on next page