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5-16
Maintenance
Safety Valve Plate
Replacing O-rings
P/N 7146386A
WARNING: Hot! Risk of burns. Wear appropriate protective
clothing/equipment.
1. Heat the melter to operating temperature.
2. Empty tank.
3. Detach pump (Refer to section Repair.
4. Release the four fixing screws M8 from the safety valve plate and
remove plate.
5. Remove old O-rings and when present, the filter screen in the suction
hole.
6. Clean sealing surfaces on tank, safety valve plate and pump.
7. If there is one, clean filter screen and place in the groove again, or
replace with a new filter screen (P/N 394072).
8. Apply high temperature grease to O-rings and sealing paste to sealing
surfaces. Attach O-rings.
9. Screw on safety valve plate.
10. Attach pump (Refer to section Repair).
11. Fill the tank.
VBN w/o Control System
E 2008 Nordson Corporation
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Troubleshooting
