Inlet Valve Cleaning, Removal | Graco 258880, 258864

Inlet Valve Cleaning

1.Engage trigger lock and pull relief valve UP to release pressure.

ti14994a

ti14999a

2. Remove material cup and suction tube.

3.Hold sprayer upside-down and use wrench or socket to loosen and remove inlet fitting, inlet valve, and spring.

ti15505a

NOTE: Make sure the spring also comes out. Use needle-nose pliers to remove if needed. Inlet cavity should be completely empty (as shown below).

ti15530a

Inlet Valve Cleaning

4.Clean as much excess material from pump cavity as possible. Make sure you also clean spring (a), o-ring (c), and top of inlet fitting (d).

NOTE: Before installing, make sure o-ring (c) is installed on inlet valve (b).

1.Place inlet valve (b) with spring (a) on top of inlet fit- ting (d). Push inlet fitting up into pump cavity.

b c

ti15502a

2.Hold inlet in place and turn sprayer upside-down. Remove inlet fitting and visually check to see that inlet valve has seated correctly.

3.Replace inlet fitting and use wrench and socket to tighten to 10 ft-lb.

NOTICE

Do NOT over-tighten inlet fitting. Damage to the equipment will occur.

4.Use your Fine-Finish Optimizer cleaning tool to lightly push on inlet valve to make sure it moves up and down freely.

3A0705E