Graco Series D, 238108 Displacement Pump Service, Relieve the pressure, 14 308608K, Disassembly

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Displacement Pump Service

Displacement Pump Service

Disassembly

NOTE: Displacement Pump Repair Kit 238225 includes repair parts for the pump throat and piston. Use all the parts in the kit for the best results. Parts included in the kit are marked with a dagger, for example (7{), in the text and drawings. See the Parts List on page 15.

1. Flush the pump.

Intake Valve. See Fig 5. WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 8.

2.Relieve the pressure.

3.Disconnect the hoses, remove the pump from its mounting, and clamp the air motor base (28) in a vise horizontally by closing the vice jaws on the flange.

Intake Valve. See Fig 5.

1.Relieve the pressure.

2.Unscrew the valve housing (111). Remove the o-ring (105{), retainer (112), and ball (104).

3.Inspect the parts for wear or damage. If the ball is nicked, replace it. Reassemble, using grease on the male threads.

Displacement Pump. See Fig 5.

NOTE: Clean and inspect all parts for wear or damage as you disassemble them. Replace parts as needed. For best results, always replace all the o-rings and packings when you disassem- ble the pump.

1.Relieve the pressure.

2.Follow steps 1 to 7 of Disassembly on page 10.

3.Carefully inspect the smooth inner surface of the cylinder (110) for scoring or irregular surfaces. Such damage causes premature seal wear and leaking. Replace the cylinder as needed.

Reassembly

Do steps 16 through 23 in Air Motor and Throat Service on page 13.

110 1.Relieve the pressure.

112 Displacement Pump. See Fig 5.

104

105{ 14 308608KManual background

111

05617

Fig. 5

{Included in Pump Repair Kit 238225, which may be purchased separately. The Parts List on page 15 includes all parts in kit.

14 308608K

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Contents Model 238108, Series D Instructions - Parts ListImportant Safety instructions 1100 psi 7.6MPa, 76 bar Maximum Working PressureWarning Symbol Table of ContentsSymbols Caution Symbol308608K SKIN INJECTION HAZARDHAZARDOUS FLUIDS 4 308608K FIRE AND EXPLOSION HAZARDMOVING PARTS HAZARD G K H P J InstallationC A N D A A R E B DETAIL A L M For Portable ApplicationsWall Mount System AccessoriesCover Mount 6 308608KInstallation Grounding4.Fluid supply container Follow the local code 308608KOperation Pressure Relief ProcedureStartup and Adjustment SKIN INJECTION HAZARDSolution TroubleshootingProblem CauseBefore You Start Air Motor and Throat ServiceDisassembly 2.Relieve the pressure308608K MOVING PARTS HAZARDAir Motor and Throat Service 12 308608K ReassemblyCutaway View Air Motor and Throat Service308608K Air Motor and Throat Service41 to 54 N.m using a 2-in.socket 14 308608K Displacement Pump Service1.Relieve the pressure DisassemblySEAL, u-cup shown on page Displacement Pump Parts Drawing and ListDescription Included in Pump Repair Kit06032 Air Motor Parts Drawing16 308608K Description Air Motor Parts ListYExtra warning labels are available at no cost DescriptionMounting Hole Layout DimensionsTechnical Data MODEL 238108 Pump, Series DInlet Air Consumption Performance ChartsFluid Outlet Pressure Outlet Pressure - psi bar20 308608K Graco Standard WarrantyGraco Phone Number
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238108, Series D specifications

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