DuraBlue II Customer Product Manual - 第98页

Service 5-8 Part 1126931_01  2018 Nordson Corporation Replacing a Motor or Coupling (contd) 4 mm (0.16 in.) Figure 5‐3 Moving the motor assembly back 4 mm (0.16 in.) 10. Tighten the screws that secure the motor to the b…

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Service
5-7
Part 1126931_01
2018 Nordson Corporation
1
3
2
Figure 5‐2 Coupling assembly components
1 Motor coupling hub
2 Coupling sleeve
3 Pump coupling hub
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 5‐3.
Service
5-8
Part 1126931_01
2018 Nordson Corporation
Replacing a Motor or Coupling (contd)
4 mm (0.16 in.)
Figure 5‐3 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.
Pump
Tightening the Pump Screws
1. Ensure that the melter is turned off and that power has been
disconnected and locked out.
2. Ensure that the melter, tank, manifold, and pump are cold.
3. See Figure 5‐4. Tighten the screws to 25 Nm (222 in.‐lb).
Figure 5‐4 Tightening the pump screws
4. Restore the system to normal operation.
Service
5-9
Part 1126931_01
2018 Nordson Corporation
Replacing a Pump
Follow this procedure to replace a pump. You will need the following items:
tool kit, including a torque wrench
drain pan
cleaning supplies
replacement pump
replacement pump O‐rings
O‐ring lubricant
anti‐seize lubricant
NOTE: To rebuild a pump, contact your Nordson representative for
assistance.
1. Ensure the melter is at operating temperature.
2. Relieve system pressure. Refer to Section 1, Safety.
3. See Figure 5‐5. Close the tank isolation valve.
Figure 5‐5 Location of the tank isolation valve