Repair. Graco 3A5379B, Electric Supply System for Sealants and Adhesives

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Repair. Graco 3A5379B, Electric Supply System for Sealants and Adhesives | Manualzz

Repair

Repair

Replace Fan Fuses

To prevent skin injection and splashing, never open an applicator fitting while there is pressure in the fluid line. Perform the Pressure Relief Procedure , page

14, before performing any repair procedure.

All electrical wiring must be done by a qualified elec trician and comply with all local codes and regula tions.

Replace Shaft Bearing

Assembly

1. Perform the Pressure Relief Procedure , page 14.

2. Disconnect the unit from the power source.

3. Remove two screws (53) and remove the junction box cover (BA) from the driver to gain access to the disconnect block (BD). Gently pull out the fuse hold ers.

4. Unscrew the fuse holder, remove the old fuse, and replace with the new fuse (Graco part number

116682) (5 mm x 20 mm, 500 mA, 250V, Slow

Blow). Reconnect the fuse holder and tighten.

1. Stop the pump at the bottom of its stroke. Shut off and remove power to the driver.

2. Perform the Pressure Relief Procedure , page 14.

3. Disconnect the lower from the driver. See Remove

Driver on page 35.

4. Drain the oil from the driver. See Change the Oil , page 16.

5. Reinstall the oil drain plug. Torque to 18-23 ft-lb

(25-30 N•m).

6. Unscrew the shaft bearing assembly (14) from the driver. See Parts , page 38.

7. Install the new shaft bearing assembly. Torque to

175-200 ft-lb (240-280 N•m).

8. Fill with oil. See Change the Oil , page 16.

9. Reconnect the lower to the driver.

10. Turn the power ON and resume operation.

53

BA

BD

WLD

F IG . 19: Fuse Location

5. Repeat step 4 with the second fuse.

6. Tuck the wires back into the junction box (BC) around the disconnect block (BD) and reinstall the junction box with two screws and washers.

NOTICE

Make sure all wires are routed correctly before instal lation. If wires get pinched when the screws are tight ened, damage will occur.

24 3A5379B

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