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Automated Dispensing Systems Maintenance & Parts Guide 24 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…

23www.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

Measure the tension on the timing belt as

follows:

a. Move the Yaxis linear guideway plate to the

rear‑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).

Replace the YAxis Motor

Disconnect the Yaxis motor cable.

NOTE: The Yaxis motor is accessed from the

rear opening of the robot where the control

assembly was previously installed.

Yaxis

motor cable

Location of the Yaxis

motor

Release the Yaxis timing belt from the timing

pulley attached to the Yaxis motor.

NOTE: For detailed instructions on releasing the

timing belt, refer to “Replace the YAxis Timing

Belt” on page21.

Remove the four (4) screws that mount the

Yaxis motor to the robot, then pull the motor

away from the robot.

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

Continued on next page

Replace the YAxis Timing Belt (continued)

Automated Dispensing Systems Maintenance & Parts Guide

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

Remove the two (2) set screws on the timing

pulley and then pull the timing pulley away from

the motor.

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

Place the new Yaxis motor into position and secure it with the four (4) screws removed previously.

Place the Yaxis timing belt around the timing pulley.

Repeat steps 9 and 10 of this procedure to

measure the tension on the timing belt and

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).

Reinstall the YAxis and Control Assembly Covers

Move the control assembly back into its position underneath the robot stage.

Place the control assembly cover on the back of the robot and secure it with the perimeter screws

removed previously.

Secure the control assembly to the control assembly cover with the screws removed previously.

NOTE: The quantity and location of the screws that secure the control assembly to the control

assembly cover differs for each robot model. Refer to “Control Assembly Cleaning” on page14 for

the control assembly cover screw locations.

Reinstall the Yaxis cover. Refer to “Reinstall the YAxis Cover” on page7 for detailed instructions.

Place the ﬁxture plate on the Yaxis linear guideway plate and secure it with the four (4) screws

removed previously.

Replace the YAxis Motor (continued)

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Automated Dispensing Systems Maintenance & Parts Guide

Timing Belt and Motor Replacement: ZAxis

NOTE: This procedure does not apply 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

a. Remove the four (4) screws that secure the

Zaxis cover to the Zaxis module.

b. Pull up vertically to remove the Zaxis cover.

Replace the ZAxis Timing Belt (All Units Except E2 / E2V and R / RV Series)

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 screw only needs to be

loosened, not completely removed.

b. Remove the old timing belt from the idler

and timing pulleys.

Timing belt

Motor ﬁxing

base

With the sawtooth sides of the new timing belt facing one another, loop the belt around the idler and

timing pulleys.

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.

Continued on next page