1
Repair
7-12
P/N 7105144G
2008 Nordson Corporation
VersaBlue_NW
Replacing Motor
NOTE: Perform work only when the material is soft (approx. 70 °C/158 °F,
depending on material); otherwise the coupling can not be turned.
1. Disconnect motor power cable in the electrical cabinet.
2. Detach plug connector from motor controller.
3. Turn the coupling until the screws of the coupling half shells are more
easily accessible.
4. Release the screws of the coupling half shells on the motor side.
5. The released coupling halves can fall apart. Remove carefully to prevent
separation. Store the coupling halves and protect them from dust. They
will be needed again.
CAUTION: The bracket may not be slid back in the slot or unscrewed.
6. Unscrew motor from bracket (1).
7. If there is protective varnish on the shaft of the new motor, remove it.
8. Attach the coupling to the shaft without using force (no jolts or
pounding). If this is difficult or impossible, sand the pulley keys and shaft
with emery paper. Lubricate pulley keys and shaft if needed.
9. Install new motor in the bracket. Tighten the fixing screws crosswise
using a torque wrench. Torque: 20 Nm / 177 lbin.
10. Attach coupling (Refer to Important Regarding Coupling).
Torque (coupling screws): 36 Nm / 320 lbin.
Fig. 7-20
11. Reconnect motor electrically.
12. Secure power cable with strain relief. Ensure that cable shield and
clamp have contact.
13. Verify that the motor is connected properly. The pump should turn
clockwise (See arrow).
Fig. 7-21 Direction of pump
rotation
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