Hitachi 309067 Displacement Pump, Removing pump See, Repairing pump, 232912 232913 232915 232917

Page 11

Displacement Pump

NOTE: Packing Repair Kit 239939 is available. Refer- ence numbers of parts included in the kit are marked with an asterisk, i.e., (223*).

Removing pump (See Fig.8)

7. Loosen screws (17). Remove pump (18).

Repairing pump

See manual 308815 for displacement pump repair instructions and parts.

1Torque to

50 ft-lb (68 N￿m)

2Apply pipe sealant (110110)

12

11

14 15 222

 

 

18

 

 

48

 

 

1

17

213

36

43

47

2

50

232912,

232913,

232915,

232917

215

*214

*227

213

Installing pump (See Fig. 8 and 9)

15

201

14

202

Fig. 9

7840A

1. Lightly grease or oil transducer (67). See Fig. 15.

Guide pump over alignment pins and pressure

transducer. Tap it into position with a soft hammer.

Tighten screws (17) to 50 ft-lb (68 N￿m).

Fig. 8

9663A

1.

Relieve pressure; page 3.

2.Flush pump, if possible. Relieve pressure. Stop pump with piston rod (222) in its lowest position, if possible. To lower piston rod manually, rotate motor fan blades.

3.Remove filter (48).

4.232912, 232913, 232915, 232917. Unscrew drain hose from inlet adapter (43). Remove drain hose by unscrewing displacement pump nipple (36).

5.232910, 232911, 232914, 232916, 232918, 232665 and 232919. Remove suction tube. Re- move drain hose by unscrewing displacement pump nipple (36).

6.Use a screwdriver to push retaining spring (15) up and push out pin (14).

2. Align hole in rod (222) with connecting rod assem-

bly (12). Use screwdriver to push retaining spring

(15) up and push in pin (14). Push retaining spring

into place around connecting rod.

WARNING

MOVING PARTS HAZARD

Be sure retaining spring (18) is firmly in groove all around, to prevent pin (14) from working loose. See Fig. 9.

If pin works loose, parts (including pump connect- ing rod or bearing housing) could project into the air and cause serious injury or property damage.

3.Reconnect suction and drain hoses (47, 50). Install front cover (11).

4.Tighten packing nut (202) enough to stop leakage, but no tighter. Fill packing nut full with Graco TSL. Push plug (201) into packing nut.

309067 11

Image 11
Contents Airless Paint Sprayer 309067ULTRAr MAX 232665, 232918, 232916, 232919 Component Function and IdentificationExplosion Hazard Pressure Relief ProcedureGeneral Repair Information Electric Shock HazardGrounding TroubleshootingElectrical Intermediate Problem Solving Intermediate Problem Solving Move sprayer to shaded, cooler area if 232910 232913, 232916 SetupMotor Test Armature Short Circuit TestTest brushes Motor Brushes232912 232913 232915 232917 Displacement PumpRepairing pump Removing pump SeeMotor LED Sprayer Operation Indicates What to do Blinks Motor control board diagnosticsPressure Control Repair Motor control board removal232916, 232917 Power CordOn/Off Switch Pressure Adjusting PotentiometerDrive Housing, Connecting Rod, Crankshaft Removal InstallationPressure Transducer Pressure Transducer Seal9666A Repair ReplacementDrain Valve Accessories Technical DataDimensions 232914, 232915, 232918, 232919 Complete Sprayer Parts232915, B 232917, B YExtra Warning Labels available free 232914, a 232916, a 232918, a 232919, a 101 232665, a 218359 232914 232918, a 232916, a 232919, a 232914, A, 232665, aModel 232912 and 232913, Series B Includes 55 51H 235014 ASSEMBLY, drain valve240519 CONNECTING, rod assy 243189 KIT, pump, displacementModel 232910 and 232911, Series a 236352 POTENTIOMETER, pressure adj 239979CRANKSHAFT, U-695 Toll Free Graco Standard WarrantyAdditional Warranty Coverage Phone Number