Service
7-8
Part 1120130
E 2011 Nordson Corporation
Replacing a Motor or Coupling (contd)
6. Remove the protective coating from the new motor shaft, slide the
replacement (if applicable) motor coupling hub onto the motor shaft, and
tighten the hub set screws.
7. Install the replacement (if applicable) pump coupling hub on the pump
shaft, ensure that it is flush with the pump shaft, and tighten the hub set
screws.
8. Loosely install the replacement motor assembly and slide the assembly,
including the motor coupling hub and sleeve, toward the pump until the
coupling sleeve engages with pump coupling hub.
9. Ensure that the coupling sleeve cannot move, then slide the motor
assembly back 4 mm (0.16 in.), as indicated in Figure 7‐3.
4 mm (0.16 in.)
Figure 7-3 Moving the motor assembly back 4 mm (0.16 in.)
10. Tighten the screws that secure the motor to the base of the melter
11. To ensure proper motor and pump shaft alignment, ensure that you can
freely slide the coupling sleeve back and forth by about 4 mm (0.16 in.)
each way.
12. Reconnect the motor cable wires to the same terminals from which they
were disconnected.
13. Reinstall the melter covers and restore the system to normal operation.
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