Graco Inc 233705, 233702 Clamp, Pinion Assembly/Rotor/Field/Shaft/Clutch, Installation, Removal

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Clamp

Pinion Assembly/Rotor/Field/Shaft/Clutch

Installation

1.Fig. 9. Lay two stacks of two dimes on smooth bench surface.

2.Lay armature (4a) on two stacks of dimes.

3.Press center of clutch down on bench surface.

4a

0.12

±.01 in. (3.0

±.25 mm)

 

dimes

Fig. 9

8705A

 

4.Install armature (4a) on engine drive shaft.

5.Install four screws (16) and lockwashers (17) with torque of 125 in-lb.

6.Fig. 7. Tap pinion shaft (A) in with plastic mallet.

7.Install retaining ring (Z) with beveled side facing field (Y).

8.Fig. 6. Place pinion assembly on bench with rotor side up.

9.Apply LoctiteR to screws. Install four screws (16) and lockwashers (17). Alternately torque screws to 125 in-lb until rotor is secure. Use threaded holes to hold rotor.

10.Fig. 5. Install pinion assembly (19) with five screws (10) and lockwashers (17).

11.Fig. 5. Connect field cable (X) to pressure control.

Clamp

Removal

1.Fig. 10. Loosen two screws (16) on clamp (8),

2.Push screwdriver into slot in clamp (8) and remove clamp.

Installation

1Face of clutch housing

21.550 ±.010 in. (39.37 ±.25 mm); GMax 3900 1.812 ±.010 in. (46.02 ±.25 mm); GMax 5900

3Torque to 125 ±.10 in-lb (14 ±1.1 N￿m)

4Chamfer this side

15

1.Fig. 10. Install engine shaft key (7).

2.Tap clamp (8) on engine shaft (A) with plastic mallet.

3.Press clamp (8) onto engine shaft (A). Maintain dimension shown note 2 in Fig. 10. Chamfer must face engine.

Check dimension: Place rigid, straight steel bar (B) across face of clutch housing (5). Use accurate measuring device to measure distance between

bar and face of clamp. Adjust clamp as necessary. Torque two screws (16) to 125 ±10 in-lb (14 ±1.1 N￿m).

7

Fig. 10

2

8

B4

16 3

03483

A

12 309409

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Contents Important Safety Instructions INSTRUCTIONS-REPAIR309409EGMaxr 3900, 5900, 5900HD Airless Paint Sprayers GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MNTable of Contents Warning SymbolCaution Symbol Warnings and CautionsINJECTION HAZARD TOXIC FLUID HAZARDRECOIL HAZARD 309409HAZARD OF USING FLUIDS CONTAINING HALOGENATED HYDROCARBONS FIRE AND EXPLOSION HAZARDEQUIPMENT MISUSE HAZARD Maintenance Pressure Relief ProcedureINJECTION HAZARD AFTER THE FIRST 20 HOURS OF OPERATIONTroubleshooting PROBLEMSOLUTION CAUSEUse larger diameter hose and/or reduce overall Bearing Housing and Connecting Rod InstallationRemoval Model 233701 shownDrive Housing Cut tie wrap holding gallon counting sensor wire to clutch wireSecure gallon counting sensor wire to clutch wire with a tie wrap Pinion Assembly/Rotor/Field/Shaft/Clutch Bottom View8699A 7. Fig. 7. Remove retaining ring 19e 8. Tap pinion shaft 19d out with plastic mallet 19e 19d10. Remove four screws 16 and lockwashers 11. Remove armature 4a 4a 8703BClamp Clutch Housing EngineOn/Off Switch 8711APressure Adjust Potentiometer Pressure ControlControl Board Pressure Control TransducerAfter a fault, follow these steps to restart sprayer Pressure Control RepairDigital Display Messages DISPLAYDisplacement Pump InstallationRemoval RepairParts Drawing - GMax 3900, 5900, 5900HD Hi-Boy Sprayers Models 233701, 233706 andParts List - GMax 3900, 5900, 5900HD Hi-Boy Sprayers Y Danger & Warning labels, tags, and cards are freeRef No. Part No DescriptionParts List & Drawing - Pinion Assembly Ref No. 19 and309409 Parts Drawing - GMax 3900 and GMax 5900 Lo-Boy Sprayers Models 233700 andParts List - GMax 3900 and GMax 5900 Lo-Boy Sprayers Parts Drawing - Sprayer GMax 3900, 5900 and 5900HD Sprayers Models 233700 throughModels 233706 through 233708 233716 and Parts List - Sprayer Pressure Control Wiring DiagramVIEW A Models 233700 through 233703 233705 through 233707 233716 andParts List/Drawing - Sprayers with RAC Tip, Gun & Hose AccessoriesDisplacement Pump Repair Kits Models 233702, 233703, 233707, 233708Technical Data DimensionsGMax Model 233701Graco Warranty ADDITIONAL WARRANTY COVERAGEFOR GRACO CANADA CUSTOMERS Graco reserves the right to make changes at any time without notice