Graco 3A0019J important safety instructions Repair, Required Tools

Repair

Repair

Required Tools

•	Large vise
• Set of adjustable wrenches
•	O-ring pick
• 1/2 in. bit socket
•	Rubber mallet

a.Remove upper ball cage (12), spring (11), ball (10), o-ring (8) and seat (9).

b.Press lower ball (10) off seat (9) from fluid inlet and drain the inlet housing (7).

c.Remove o-ring (8), lower ball cage (12), spring (11), ball (10), seat (9), and o-ring (8).

• Torque wrench

• 2 in. and 3 in. sockets

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12

• Anti-seize lubricant

• Removable strength thread locker

Inlet Housing Disassembly

1.Relieve pressure and flush system. See Pressure Relief Procedure and Flushing, page 7.

2.Remove inlet hose and drain inlet housing (7).

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3.Remove inlet cap (13) from inlet housing (6), and remove o-ring (8).

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12

11

10

9

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d.Clean all parts in a compatible solvent. Lay them in order for easier reassembly. Inspect each ball and seat for nicks or scratches; replace as required.

Inlet Housing Assembly

1.Install inlet housing components in inlet housing (6).

2.Install o-ring (8) on inlet cap (13) and apply anti-seize lubricant to inlet cap (13) threads. Fully tighten inlet cap (13) with a wrench.

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