Hitachi 232133 manual Drive Housing, Connecting Rod, Crankshaft

Page 26

Drive Housing, Connecting Rod, Crankshaft

WARNING

INJECTION HAZARD

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

NOTE: Inspect parts as they are removed. Replace parts that are worn or damaged.

1.Relieve pressure.

2.Remove displacement pump. See page 22.

3.Remove shroud (32).

4.Lower heat sink (22) and remove pressure trans- ducer (67). See page 28.

4

16

Fig. 22

7840A

5.Remove three drive housing screws and lock- washers (16, 4). Also see Fig. 23.

6.Remove two motor screws and lockwashers (3, 4). See Fig. 23.

CAUTION

Do not allow the gear (13) to fall; it may stay at- tached to the drive housing or to the motor.

Do not lose the thrust balls (2a or 41) or let them fall between the gears, which will damage the drive housing if not removed. The balls, which are heavily covered with grease, usually stay in the gear re- cesses, but could be dislodged. If the balls are not in place, the bearings will wear prematurely.

7.Tap lower rear of drive housing (2) with a plastic mallet to loosen motor. Pull drive housing straight off motor.

8.Remove and inspect crankshaft (5) and connecting rod (12). Replace all damaged or worn parts.

9.Install connecting rod.

10.Lubricate inside of connecting rod bearing with SAE non-detergent oil. Pack roller bearing and gears with grease supplied.

NOTE: The gears and bearings between the drive housing (2) and motor front end bell (C) should contain a total of 3 fl oz (89 cc) of grease.

11.Place large washer (6) and then small washer (7) on crankshaft (5).

12.Rotate crank to top of stroke and insert crankshaft

(5). Align gears and push drive housing (2) straight onto motor and locating pins. Install screws (16, 3) and their lockwashers (4). Torque to 80 in-lb (9 N￿m).

13.Plug in pressure transducer. See page 28.

14.Install displacement pump. See page 22.

15.Install front cover (11).

16.Replace shroud (32).

17.Replace heat sink (22).

26 308801

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Contents Model 232132 and 232130, Series a 308801Models 232133 and 232131, Series a Read and Keep for ReferenceTable of Contents SymbolsInjection Hazard Fire and Explosion Hazard Fire Skin Injection Explosion HazardComponent Function and Identification DC aSetup Model 232133 ShownHow to use the pressure drain valve How to use the gun safety latchHow to use the pressure control GroundingHow to remove a tip clog Pressure Relief ProcedureHow to use the RAC IV tip guard Injection HazardStartup Adjust spray pattern Fire and Explosion HazardShutdown and Care Flushing When to flushHow to flush Relieve pressureOpen or drain position Troubleshooting Basic Problem SolvingElectrical Intermediate Problem Solving Replace pin if missing. Be sure retainer Unit will not run on generator but does run on AC power Moving Parts Hazard General Repair InformationTool List Fire HazardArmature Short Circuit Test SetupMotor Test Electric Shock Hazard Motor BrushesTest brushes Removing pump See Displacement PumpRepairing pump Remove three drive housing screws MotorMotor control board removal Motor control board diagnosticsMotor Control Board LED Sprayer Operation Indicates What to do BlinksPower Supply Cord On/Off SwitchDrive Housing, Connecting Rod, Crankshaft Not shown Pressure Transducer Seal InstallationPressure Transducer RemovalSuction Hose Models 232132 Repair ReplacementDrain Valve Accessories Technical DataDimensions Complete Sprayer Parts Model 232132 and 232133, Series a239769 KIT, pump, displacement 51H 235014 ASSEMBLY, drain valve240519 CONNECTING, rod assy See manualModel 232130 and 232131, Series a Manual 239979CRANKSHAFT, U-695 236352 POTENTIOMETER, pressure adjPhone Number Graco Standard WarrantyAdditional Warranty Coverage Toll Free
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