Hitachi 288466 important safety instructions Repair, Disassembly

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Repair

Repair

See your sprayer instruction manual for complete instructions for removing and installing the pump in your sprayer.

Disassembly

1.(Fig. 1) Remove packing nut (3).

3

ti8845a

FIG. 1

2. (Fig. 2) Unscrew intake valve from cylinder.

ti8846a

FIG. 2

3.(Fig. 3) Disassemble intake valve. Clean and inspect o-ring (17). You may need to use a pick to remove o-ring.

Spring (26) for model 288819 is optional and is not included with the pump.

 

26

18

(288467/288468)

26

19

(288819)

16

 

 

17

1

ti8847b

FIG. 3

4.(Fig. 4) Use a hammer to tap piston rod (5) out of cylinder (2), or flip pump over and tap piston rod out against work bench.

5

2

ti8848a

FIG. 4

5. (Fig. 5) Remove piston rod (5) from sleeve (4).

4

5

ti8849a

FIG. 5

4

311845C

Image 4
Contents Displacement Pump Model 288467/288468Equipment Misuse Hazard Service Pressure Relief ProcedureCleaning and Inspecting Parts Tools NeededDisassembly RepairTi8850a Reassembly Grease top inch or two of piston rod 19288819 Model 288467/288468 PartsPart Description Qty Model CylinderIncluded in Repair Kit † Included in Repair Kit Parts Technical Data Graco Standard Warranty Graco Information