Maintenance

Maintenance

Maintenance Schedule

Flushing and Storage

Establish a preventive maintenance schedule, based on the pump’s service history. Scheduled maintenance is especially important to prevent spills or leakage due to diaphragm failure.

Lubrication

The pump is lubricated at the factory. It is designed to require no further lubrication for the life of the pump. An inline lubricator is not needed, and is not recommended, under normal operating conditions.

Tighten Threaded Connections

Before each use, check all hoses for wear or damage, and replace as necessary. Check to be sure all threaded connections are tight and leak-free. Check fasteners. Tighten or retorque as necessary. Although pump use varies, a general guideline

is to retorque fasteners every two months. See Torque Instructions, page 16.

Flush before fluid can dry in the equipment, at the end of the day, before storing, and before repairing equipment.

Flush at the lowest pressure possible. Check connectors for leaks and tighten as necessary.

Flush with a fluid that is compatible with the fluid being dispensed and the equipment wetted parts.

Flush the pump often enough to prevent the fluid you are pumping from drying or freezing in the pump and damaging it. Use a compatible solvent.

Always flush the pump and relieve the pressure before storing it for any length of time.

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Graco 334014A important safety instructions Maintenance Schedule, Lubrication, Tighten Threaded Connections