Nordson_EFD_Automated_Dispensing_Systems_Maintenance_Guide.pdf - 第19页

19 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 10 Tighten the timing belt…

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Automated Dispensing Systems Maintenance & Parts Guide
18 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: XAxis (continued)
5
Release the timing belt adjusting kit base screw
located on the rear of the Xaxis to loosen the
timing belt from the idler pulley. This loosens
the timing belt enough to remove it from the
idler and timing pulleys.
NOTE: The screw only needs to be loosened,
not completely removed.
Timing belt
Idler pulley
Timing belt adjusting kit
base screw
6
a. Remove the two (2) screws that fasten the
timing belt fixing base and then detach the
fixing base from the Xaxis linear guideway
plate.
b. Move the timing belt and timing belt fixing
base to a work space away from the robot.
Timing belt fixing
base screws
a
7
Remove the four (4) screws that fasten the
timing belt cover to the timing belt fixing base
and then remove the old timing belt from the
assembly.
Timing belt fixing base
Timing belt
cover
8
a. Match the sawtooth pattern of the new
timing belt to the sawtooth pattern on the
timing belt fixing base.
b. Secure the timing belt cover to the timing
belt fixing base with the four (4) screws
removed previously.
a
Timing belt
fixing base
9
a. Move the timing belt and timing belt fixing
base behind the Xaxis linear guideway
plate. Ensure that:
• The sawtooth pattern on the insides of the
timing belt loop are facing each other.
• The timing belt cover faces the ground.
• The section of the timing belt attached
to the timing belt fixing base is the lower
level of the belt.
b. Place the timing belt around the idler and
timing pulleys, then secure the timing belt
fixing base to the Xaxis linear guideway
plate with the two (2) screws removed
previously.
NOTE: The timing belt should be loose and
drooping below the timing belt fixing base.
Continued on next page
Replace the XAxis Timing Belt (continued)
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Automated Dispensing Systems Maintenance & Parts Guide
10
Tighten the timing belt adjusting kit base screw
on the rear of the robot Xaxis to tighten the
belt.
Timing belt adjusting kit
base screw
11
Measure the tension on the timing belt as
follows:
a. Move the Xaxis linear guideway plate to the
left‑most position.
b. Enter the timing belt mass, width, and span
(length) into the tension meter. Refer to
“Timing Belt Mass, Width, and Span Data”
on page16 for these values.
c. Hold the meter 20 mm (0.8") from the timing
belt, then strum the belt (as if it were a guitar
string).
d. Observe the measurement displayed on the
meter:
• If the tension is within 50–70 N•m
(37–52ft‑lb), the tension is correct
• If the tension is outside 50–70 N•m (37–
52ft‑lb), adjust the timing belt adjusting
kit base screw again and repeat the
tension measurement. Repeat as needed
until the tension measures 50–70 N•m
(37–52ft‑lb).
c
12
Secure the Zaxis module to the Xaxis linear guideway plate with the four (4) screws removed
previously.
Replace the XAxis Motor
13
On the rear side of the Xaxis, disconnect the
Xaxis motor cable.
Xaxis
motor cable
13
15
14
Release the Xaxis timing belt from the timing
pulley attached to the Xaxis motor.
NOTE: For detailed instructions on releasing the
timing belt, refer to “Replace the XAxis Timing
Belt” on page17.
15
Remove the four (4) screws that mount the
Xaxis motor to the robot, then pull the motor
away from the robot.
Timing Belt and Motor Replacement: XAxis (continued)
Continued on next page
Replace the XAxis Timing Belt (continued)
Automated Dispensing Systems Maintenance & Parts Guide
20 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
16
Remove the two (2) set screws on the timing
pulley and then pull the timing pulley away from
the motor.
17
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
4mm (0.16").
4 mm
(0.16")
a b
18
Place the new Xaxis motor into position and secure it with the four (4) screws removed previously.
19
Place the Xaxis timing belt around the timing pulley.
20
Measure the tension on the timing belt as
follows:
a. Move the Xaxis linear guideway plate to the
left‑most position.
b. Enter the timing belt mass, width, and span
(length) into the tension meter. Refer to
“Timing Belt Mass, Width, and Span Data”
on page16 for these values.
c. Hold the meter 20 mm (0.8") from the timing
belt, then strum the belt (as if it were a guitar
string).
d. Observe the measurement displayed on the
meter:
• If the tension is within 50–70 N•m
(37–52ft‑lb), the tension is correct
• If the tension is outside 50–70 N•m (37–
52ft‑lb), adjust the timing belt adjusting
kit base screw again and repeat the
tension measurement. Repeat as needed
until the tension measures 50–70 N•m
(37–52ft‑lb).
c
Reinstall the XAxis Front Cover
21
Reinstall the Xaxis cover. Refer to “Reinstall the XAxis Front Cover” on page5 for detailed
instructions.
Timing Belt and Motor Replacement: XAxis (continued)
Replace the XAxis Motor (continued)