Graco 308550ZAD important safety instructions Troubleshooting

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Troubleshooting

PROBLEM

CAUSE

SOLUTION

Fluid in exhaust air.	Diaphragm ruptured.	Replace. See pages 19–22.

	Loose fluid side diaphragm plate	Tighten or replace. See pages
	(105).	19–22.

Pump exhausts excessive air at	Worn air valve block (7), o-ring (6),	Inspect; replace. See pages 16–17.
stall.	plate (8), pilot block (18), u-cups
	(10), or pilot pin o-rings (17).

	Worn shaft seals (402).	Replace. See pages 19–22.

Pump leaks air externally.	Air valve cover (2) or air valve cover	Tighten screws. See page 17.
	screws (3) are loose.

	Air valve gasket (4) or air cover	Inspect; replace. See pages 16–17,
	gasket (22) is damaged.	23–24.

	Air cover screws (25) are loose.	Tighten screws. See pages 23–24.

Pump leaks fluid externally from ball	Loose manifolds (102, 103), dam-	Tighten manifold bolts (106 and
check valves.	aged seal between manifold and	112) or replace seats (201) or
	seat (201), damaged o-rings (202).	o-rings (202). See page 18.

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Contents Important Safety Instructions Instructions Parts ListModels Table of ContentsEquipment Misuse Hazard SymbolsToxic Fluid Hazard Toxic Fluid Hazard InstallationGeneral Information Tighten Screws Before First UseGround all of this equipment GroundingAir Line Typical FLOOR-MOUNT InstallationFluid Outlet Line Installation of Remote Pilot Air LinesMountings Fluid Suction LineBolt Tightening Sequence Flange ConnectionsFluid Pressure Relief Valve Changing the Orientation of the Fluid Inlet and Outlet PortsAir Exhaust Ventilation Fire and Explosion HazardVenting Exhaust AIR Flush the Pump Before First Use Pressure Relief ProcedureStarting and Adjusting the Pump OperationMaintenance Problem Cause Solution TroubleshootingTroubleshooting Tools Required ServiceRepairing the Air Valve DisassemblyReassembly Relieve the pressure. Disconnect all hoses Ball Check Valve RepairDiaphragm Repair Reassembly Standard Diaphragms Reassembly Overmolded Diaphragms 105 19 402 24 104 403 Bearing and Air Gasket Removal Detail of Air Valve Bearings Husky 2150 Polypropylene and Pvdf Pumps, Series a Pump MatrixFor Husky 2150 Polypropylene and Pvdf Pumps, Series a Repair Kit MatrixParts Air Motor Parts List Matrix ColumnMuffler Fluid Section Parts List Matrix ColumnSeat Parts List Matrix Column Ball Parts List Matrix ColumnDiaphragm Parts List Matrix Column 114 Torque Sequence Dimensions Front ViewSide View Pump Mounting Hole Pattern Dimension SST Center Aluminum Polypropylene Pvdf Cover 14-0.8 MPa, 1.4-8 bar Technical DataFluid Flow GPM lpm Performance ChartFeet meters Psi MPa, barGraco Information Graco Warranties