309409E 233705Related ManualsOperation 309408. . . . . . . . . . . . . . . . . . . . . . . . . . Displacement Pump 309277. . . . . . . . . . . . . . .
30940910Pinion Assembly/Rotor/Field/Shaft/ClutchRemovalIf pinion assembly (19) is not removed from clutchhousing (5), do 1. through 4. Otherwise, star
309409 117. Fig. 7. Remove retaining ring (19e).8. Tap pinion shaft (19d) out with plastic mallet.Fig. 719e19d8703B9. Fig.8. Use an impact wrench or w
30940912Pinion Assembly/Rotor/Field/Shaft/ClutchInstallation1. Fig. 9. Lay two stacks of two dimes on smoothbench surface.2. Lay armature (4a) on two
309409 13Clutch HousingRemoval1. Fig. 11. Remove four capscrews (73) and lock-washers (77) which hold clutch housing (5) toengine.2. Remove screw (15)
30940914On/Off SwitchRemoval1.Relieve pressure; page 5.2. Fig. 14. Remove four screws (28) and display/cover (153).3. Pull display connector wings (A)
309409 15Pressure ControlControl BoardRemoval1.Relieve pressure; page 5.2. Fig. 14. Remove four screws (28) and display/cover (153). Pull display conn
psibarMPa30940916Pressure Control RepairDigital Display MessagesRelieve pressure before repair; page 5. No display does not mean that sprayer is not p
309409 17Displacement PumpRemoval1. Flush pump.2.Relieve pressure; page 5.3. Fig. 15. Cycle pump with piston rod (222) in itslowest position.4. Fig. 1
30940918Parts Drawing – GMax 3900, 5900, 5900HD Hi-Boy SprayersRef 114540373839Ref 35DETAIL A06868BModels 233701, 233706 and 233716See manual 309277
309409 19Parts List – GMax 3900, 5900, 5900HD Hi-Boy SprayersModels 233701, 233706 and 233716*Ref No. Part No. Description QtyRef No.Part No. Descript
3094092Table of ContentsWarnings and Cautions 2. . . . . . . . . . . . . . . . . . . . . . . . . Maintenance 5. . . . . . . . . . . . . . . . . . . .
30940920Parts List & Drawing – Pinion AssemblyRef No. 19 and 20Ref No. 19: Pinion Housing Assembly 245398 forGMax 3900; Pinion Housing Assembly 24
309409 21Notes
30940922Parts Drawing – GMax 3900 and GMax 5900 Lo-Boy SprayersRef 114045373839Ref 35DETAIL AModels 233700 and 233705See manual 309277 for the parts.1
309409 23Parts List – GMax 3900 and GMax 5900 Lo-Boy SprayersModels 233700 and 233705Ref No. Part No. Description QtyRef No.Part No. Description Qty1
30940924Parts Drawing – SprayerGMax 3900, 5900 and 5900HD SprayersModels 233700 through 233703Models 233706 through 233708; 233716 and 233717100n 100m
309409 25Parts List – SprayerModels 233700 through 233703; 233705 through 233707; 233716 and 233717REF NO. PART NO. DESCRIPTION QTYREF NO. PART NO. DE
30940926Parts List/Drawing – Sprayers with RAC XTip, Gun & HoseModels 233702, 233703, 233707, 233708, 233717GMax 3900, 5900, 5900HD Airless Paint
309409 27Technical DataHonda GX120 EnginePower Rating @ 3700 rpmANSI 4.0 Horsepower. . . . . . . . . . . . . . . . . . . . . . . DIN 6270B/DIN 6271NA
30940928Graco WarrantyGraco warrants all equipment manufactured by Graco and bearing its name to be free from defects in material and workmanship on t
309409 3WARNINGINJECTION HAZARDSpray from the spray tip, hose leaks or ruptured components can inject fluid into your body and causeextremely serious
3094094WARNINGFIRE AND EXPLOSION HAZARDImproper grounding, poor air ventilation, open flames, or sparks can cause a hazardous condition andresult in f
309409 5MaintenanceWARNINGINJECTION HAZARDThe system pressure must be manuallyrelieved to prevent the system fromstarting or spraying accidentally. Fl
3094096TroubleshootingRelieve pressure; page 5.PROBLEM CAUSE SOLUTIONE=XX is displayed Fault condition exists Determine fault correction from table, p
309409 7PROBLEM CAUSE SOLUTIONPump output is lowStrainer (31) is clogged Clean strainer. Sprayer 233716 strainer is foruse in paint only.Piston ball (
3094098Bearing Housing and Connecting RodNOTE: The item numbers referenced are for theHi-Boy models. The Lo-Boy models may have differentitem numbers.
309409 9Drive HousingRemoval1.Relieve pressure; page 5.2. Fig. 3. Remove bearing housing. Do 1. through 8.of Bearing Housing and Connecting Rod proce-
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