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Automated Dispensing Systems Maintenance & Parts Guide 26 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide. Replace the ZAxis Timing …

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25www.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: 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
1
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.
a
b
a
Replace the ZAxis Timing Belt (All Units Except E2 / E2V and R / RV Series)
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 screw only needs to be
loosened, not completely removed.
b. Remove the old timing belt from the idler
and timing pulleys.
a
Timing belt
b
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.
b
a
b
a
Continued on next page
Automated Dispensing Systems Maintenance & Parts Guide
26 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
Replace the ZAxis Timing Belt (E2 / E2V units only)
5
Release the two (2) screws that fasten the
timing belt fixing plate and then remove the
plate.
Timing belt
fixing plate
6
a. Release the four (4) screws that fasten the
motor to the robot. 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 pulley.
a
b
7
With the sawtooth sides of the new timing belt
facing one another, loop the belt around the
idler and timing pulleys.
Align the sawtooth pattern of the timing belt so
it matches the pattern on the Zaxis module that
is covered by the timing belt fixing plate.
8
Adjust the motor to the upright position and
tighten the four (4) screws that fasten the motor
to the robot.
NOTE: The tension is not measured for this
belt.
9
Secure the timing belt fixing plate with the two (2) screws removed previously.
Timing Belt and Motor Replacement: ZAxis (continued)
Continued on next page
27www.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: ZAxis (continued)
Replace the ZAxis Motor (All Units Except E2 / E2V and R / RV Series)
10
Disconnect the Zaxis motor cable.
Zaxis
motor cable
11
Release the four (4) screws on the motor fixing base.
This loosens the motor enough to remove the timing belt from the timing pulley, at which point the
motor fixing base and timing pulley can be completely removed from the Zaxis module.
12
Release the four (4) screws fastening the Zaxis
motor to the motor fixing base and then place
the isolated motor on the work bench.
13
a. Release the four (4) set screws located
inside the threaded holes of the timing
pulley.
NOTE: Two set screws are used in each
hole: one screw for initial contact with the
shaft and a second screw to secure the
position.
b. Lift the timing pulley off the Zaxis motor
shaft.
b
a
14
a. Assemble the timing pulley onto the new
Zaxis motor shaft; position the timing pulley
such that the two (2) set screw holes align
with 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
10 mm (0.4").
10 mm (0.4")
15
Secure the new Zaxis motor and the timing pulley to the motor fixing base with the four (4) screws
removed previously.
16
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.
b
a
b
a
Continued on next page