Hitachi HYDRAMAX 309379 User Manual

309379Rev. FREPAIRINSTRUCTIONSThis manual contains importantwarnings and information.READ AND KEEP FOR REFERENCE.HydraMax SprayersHydraMax 2253600 ps

30937910Pressure ControlDigital Tracking System (DTS)The DTS contains stored data to assist with job con-trol, troubleshooting and maintenance.Gener

(Setup)(AutoClean)11309379DTS Error CodesNo display does not mean that sprayer is not pressurized. Relieve pressure before repair; page 4.DISPLAY SPR

30937912EngineRemoval1. Do Fan Belt, Removal; page 8.2. Fig. 5. Disconnect all necessary wiring.3. Fig. 6. Remove four engine mounting fastenersfrom u

13309379Hydraulic MotorRemoval1.Relieve pressure; page 4.2. Fig. 7. Remove four cap screws (33), washers(128) and cylinder cap (34).3. Remove o-ring (

30937914Directional Valve and Hydraulic Motor SwitchesDirectional ValveRemoval1.Relieve pressure; page 4.2. Fig. 7. Remove large hex nut (F) on top of

15309379Displacement PumpSee manual 309277 for pump repair instructions.Removal1. Flush pump.2.Relieve pressure; page 4.3. Fig. 8. Remove suction tube

30937916ti1426CParts Drawing – HydraMax 225 Sprayers1Page 18Page 2048111385105477311214814782121434911555113513410101179787714466Page 2815863814616095

17309379Parts List – HydraMax 225 SprayersModels 233640 and 233641Ref No. Part No. Description QtyRef No. Part No. Description Qty1 116080 ENGINE, 6.5

30937918Parts Drawing – HydraMax 225 Sprayers81201365026242201522314113 259565135583019186139536262272715613321563113413513486119142967541248389946428

19309379Parts List – HydraMax 225 SprayersModels 233640 and 233641Ref No. Part No. Description QtyRef No. Part No. Description Qty2 116068 PUMP, hydra

3093792Danger d’incendie et d’explosion : les gaz de solvant et de peinturepeuvent s’enflammer ou exploser.Pour éviter les risques d’incendie et d’exp

30937920ti1428ati1428aParts Drawing – HydraMax 225 Sprayers3644374041102393842596043443433133484557351321311311323214110614091464713712813812911386108

21309379Parts List – HydraMax 225 SprayersModels 233640 and 233641Ref No. Part No. Description QtyRef No. Part No. Description Qty15 244110 HOSE, coup

30937922148111385105102477311214714882121434911555113513410101179787714466Page 288158116736976130221609582146115616395Parts Drawing – HydraMax 300/350

23309379Parts List – HydraMax 300/350 SprayersModel 233650 and 233660Ref No. Part No. Description QtyRef No. Part No. Description Qty1 ENGINE116081 Mo

30937924Parts Drawing – HydraMax 300/350 Sprayers81201365026242522314113259565135583019186139536262272715613321563113413586Page 2611914296715316394646

25309379Parts List – HydraMax 300/350 SprayersModel 233650 and 233660Ref No. Part No. Description QtyRef No. Part No. Description Qty2 PUMP, hydraulic

30937926Parts Drawing – HydraMax 300/350 Sprayers14644374441401033938426059433433175454812957351321311311323214110614091464713712813836151081091131451

27309379Parts List – HydraMax 300/350 SprayersModel 233650 and 233660Ref No. Part No. Description QtyRef No. Part No. Description Qty15 245201 HOSE, c

30937928TI1430bParts Drawing – HydraMax 225/300/350 Sprayers317320319758876 Ref322323330321329328327326325324721143053083049774931730615 Ref1278712516

29309379Parts List – HydraMax 225/300/350 SprayersModel 233650 and 233660Ref No. Part No. Description QtyRef No. Part No. Description Qty16‡ 243985 CA

3309379General Repair InformationWARNINGMOVING PARTS HAZARDTo reduce risk of serious injury, do nottouch moving parts with fingers or toolswhile testi

30937930HydraMax Sprayers with Spray Gun and HosesHydraMax 225, 300 and 350 SprayersModels 233642, 233643, 233651, 233661Includes items 202 to 202fRef

31309379Technical DataModel HydraulicPressurepsi (bar)HydraulicReservoirCapacityGallons (Liters)MotorHP (kW)Cycles pergallon (liter)MaximumDeliverygp

30937932Graco WarrantyGraco warrants all equipment listed in this manual which is manufactured by Graco and bearing its name to be free from defects i

3093794MaintenanceWARNINGINJECTION HAZARDThe system pressure must be manuallyrelieved to prevent the system fromstarting or spraying accidentally. Flu

5309379TroubleshootingWARNINGINJECTION HAZARDTo reduce risk of serious injury, when instructed to relieve pressure, follow steps 1. – 6.; page 4.PROBL

3093796Hydraulic PumpRemoval1.Relieve pressure; page 4.Let hydraulic system cool before beginning ser-vice.2. Fig 2. Use 3.5 gallon container to catch

7309379TI11476b1361368150Engine mountingfasteners23619139Fig. 2141213394141A246746545364255830Bottom View185256FCEDB

3093798Fan BeltRemoval1. Fig. 3. Remove two screws (141) and slide shroud(23) up and off of sprayer.2. Loosen four fasteners on underside of engine (1

9309379Pressure ControlDisplay and Control BoardRemoval1.Relieve pressure; page 4.2. Fig. 4. Remove four screws (100) and pressurecontrol cover (99).