Graco 220-569 Air Line Lubricator, Air Line Filter, Hydraulic Power Supply Check, Mix Tank Volume

Maintenance

Air Line Lubricator

Keep properly filled for automatic air motor lubrication.

Air Line Filter

Drain and clean as necessary.

Hydraulic Power Supply Check

Carefully follow the hydraulic power supply manufac- turer’s recommendations on reservoir and filter clean- ing, and periodic changes of hydraulic fluid.

Stop the Pump at the Bottom of Its Stroke

WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 12.

Whenever you stop the pump for any reason, relieve the pressure. Stop the pump on the downstroke, before the air motor changes over. If the pump is stopped on the upstroke a pressure relief seat causes the piston to creep until it reaches the up position. Following the Pressure Relief Procedure helps stop the pump at the bottom of its stroke.

Mix Tank Volume

Don’t let the mix tank run dry. When the tank is empty, the pump demands more power as it tries to suck in some fluid. This causes the pump to run too fast, which can seriously damage the pump.

CAUTION

Failure to stop the pump at the bottom of its stroke allows fluid to dry on the piston rod, which can cause damage to the throat packings when the pump is restarted.

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