Nordson_EFD_Automated_Dispensing_Systems_Maintenance_Guide.pdf - 第18页

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 Repl…

17www.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 Replacement: XAxis

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 X and ZAxis Covers

Remove the Xaxis front cover. Refer to

“Remove the XAxis Front Cover” on page4

as needed for detailed instructions.

Xaxis front

cover

a. Remove the six (6) screws that secure the

black Xaxis rear cover: three (3) on the top

and three (3) on the bottom.

b. Remove the Xaxis rear cover by pulling in

the Ydirection away from the back of the

robot.

Xaxis rear

cover

Remove the Zaxis cover. Refer to the following

procedures as needed for detailed instructions:

• “Remove the ZAxis Cover (All Units Except

R / RV Series)” on page8

• “Remove the ZAxis Cover (R / RV Series

Only)” on page10

Zaxis

cover

Replace the XAxis Timing Belt

CAUTION

Risk of equipment damage or personal injury. The

Zaxis module is heavy and will fall if not held.

Nordson EFD recommends that the Zaxis module be

held by an assistant during disassembly.

Tightly grasp the Zaxis module and then

remove the four (4) screws on the left and right

sides of the Zaxis module that fasten it to the

Xaxis linear guideway.

NOTE: Nordson EFD recommends that

the Zaxis module be held by an assistant;

alternatively, you can carefully place the Zaxis

module on the top the robot in a position that

will not strain any connections.

Continued on next page

Automated Dispensing Systems Maintenance & Parts Guide

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Timing Belt and Motor Replacement: XAxis (continued)

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

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

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

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.

Timing belt

ﬁxing base

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

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

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).

Secure the Zaxis module to the Xaxis linear guideway plate with the four (4) screws removed

previously.

Replace the XAxis Motor

On the rear side of the Xaxis, disconnect the

Xaxis motor cable.

Xaxis

motor cable

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.

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)