DuraBlue II Customer Product Manual - 第97页

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, s…

Service

5-6

Part 1126931_01

 2018 Nordson Corporation

Replacing a Motor or Coupling

Follow this procedure to replace a motor or coupling. You will need the

following items:

 appropriate tools

 replacement motor or coupling

 anti‐seize lubricant (if needed)

1. Disconnect and lock out electrical power to the melter.

2. Remove the hydraulic side covers and the left and right control cabinet

side covers. Refer to Detaching the Exterior Panels earlier in this section

as needed.

3. Disconnect the motor cable wires, noting their terminal positions.

4. See Figure 5‐2. Loosen the screws that secure the motor to the base of

the melter and then slide the motor back.

5. Slide the coupling sleeve (2) off of the coupling hubs (1 and 3), loosen

the hub set screws, and remove the hubs.

Service

5-7

Part 1126931_01

 2018 Nordson Corporation

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 Nm (222 in.‐lb).

Figure 5‐4 Tightening the pump screws

4. Restore the system to normal operation.