AltaPail II Bulk Melters Product Manual.pdf - 第147页

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Maintenance

8-9

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Gear Pump

Checking for Leakage

Variseals are fixed in place on the pump with a flange (1). If material escapes

along the shaft, the pump shaft seal must be replaced.

NOTE: A special assembly tool is needed for replacement. Refer to the

separate document Parts List. However, Nordson recommends replacing the

pump and sending the old one in to be repaired. Refer to page 10-2,

Replacing Gear Pump.

Maintenance

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Troubleshooting

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Section 9

Troubleshooting

WARNING! Allow only qualified personnel to perform the following tasks.

Follow the safety instructions in this document and all other related

documentation.

WARNING! Troubleshooting activities may sometimes have to be carried out

when the melter is energized. Observe all safety instructions and regulations

concerning energized unit components (active parts). Failure to observe may

result in an electric shock.

Safety

Never disconnect cables from, or reconnect cables to, the main board

while the melter is energized.

Before breaking any hydraulic connection, always relieve system

pressure. Refer to Relieving System Pressure in Section 7, Service.

Refer to the safety information provided with optional equipment.

If the melter is removed from its sub-base for diagnostic checks or

service, ensure that the ground lead between the chassis and the

sub-base is re-attached when the melter is reconnected to the sub-base.

NOTE: Refer to Administrative Options and Settings located in Chapter 6 of

this manual.