Table of Contents
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INSTRUCTIONS-REPAIR
Important Safety Instructions
Read all warnings and instructions in this
manual. Save These instructions.
GMaxr 3900, 5900, 5900HD
Airless Paint Sprayers
3300 psi (227 bar, 22.7 MPa) Maximum Working Pressure
GMax 3900
Model
Series
233701
A
233703
A
Hi-Boy with RAC
233700
A
233702
A
Lo-Boy with RAC X tip, gun and hose
GMax 5900
Model
Series
233706
A
233708
A
Hi-Boy with RAC X tip, gun and hose
233705
A
233707
A
Lo-Boy with RAC X tip, gun and hose
GMax 5900HD
Model
Series
233716
A
233717
A
Hi-Boy with RAC X tip, gun and hose
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
Description
Hi-Boy
R
X tip, gun and hose
Lo-Boy
Description
Hi-Boy
Lo-Boy
Description
Hi-Boy
ECOPYRIGHT 2002, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
All models are not available in all countries
PATENTS PENDING
Related Manuals
Operation
. . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement Pump
. . . . . . . . . . . . . . . . .
Spray Gun
. . . . . . . . . . . . . . . . . . . . . . . . .
Texture Spray Gun
. . . . . . . . . . . . . . . . . .
Spray Tip
. . . . . . . . . . . . . . . . . . . . . . . . . . .
PC Board
. . . . . . . . . . . . . . . . . . . . . . . . . .
Drain Valve Kit
. . . . . . . . . . . . . . . . . . . . . .
309409E
233705
ti1839a
309408
309277
309639
308491
309640
309459
308961
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Table of Contents
Related Manuals for Graco GMax 233700
Summary of Contents for Graco GMax 233700
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Page 1: Related Manuals
INSTRUCTIONS-REPAIR Important Safety Instructions Read all warnings and instructions in this manual. Save These instructions. GMaxr 3900, 5900, 5900HD Airless Paint Sprayers 3300 psi (227 bar, 22.7 MPa) Maximum Working Pressure GMax 3900 Model Series Description 233701 233703 Hi-Boy with RAC 233700 233702 Lo-Boy with RAC X tip, gun and hose... -
Page 2: Table Of Contents
Warnings and Cautions ......Maintenance ........Troubleshooting . - Page 3 INJECTION HAZARD Spray from the spray tip, hose leaks or ruptured components can inject fluid into your body and cause extremely serious injury, including the need for amputation. Splashing fluid in the eyes or on the skin can also cause can also cause serious injury. D Fluid injected into the skin might look like just a cut, but it is a serious injury.
- Page 4 FIRE AND EXPLOSION HAZARD Improper grounding, poor air ventilation, open flames, or sparks can cause a hazardous condition and result in fire or explosion and serious injury. D Ground the equipment and the object being sprayed. See Electrical Grounding on page . D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvent or the fluid being sprayed.
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Page 5: Maintenance
WARNING INJECTION HAZARD The system pressure must be manually relieved to prevent the system from starting or spraying accidentally. Fluid under high pressure can be injected through the skin and cause serious injury. To reduce the risk of an injury from injection, splashing fluid, or moving parts, follow the Pressure Relief Procedure whenever you: D are instructed to relieve the pressure,... -
Page 6: Troubleshooting
Relieve pressure; page 5. PROBLEM CAUSE E=XX is displayed Fault condition exists Engine won’t start Engine switch is OFF Engine is out of gas Engine oil level is low Spark plug cable is disconnected or damaged Cold engine Fuel shutoff lever is OFF Oil is seeping into combustion chamber False tripping of WatchDog Operating conditions out of WatchDog param-... - Page 7 PROBLEM CAUSE Pump output is low Strainer (31) is clogged Piston ball (206) is not seating Piston packings are worn or damaged O-ring (227) in pump is worn or damaged Intake valve ball is not seating properly Intake valve ball is packed with material Engine speed is too low Clutch is worn or damaged Pressure setting is too low...
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Page 8: Bearing Housing And Connecting Rod
Bearing Housing and Connecting Rod NOTE: The item numbers referenced are for the Hi-Boy models. The Lo-Boy models may have different item numbers. Use the Hi-Boy item number and part to find the corresponding Lo-Boy part and item number. Removal Relieve pressure;... -
Page 9: Drive Housing
Removal Relieve pressure; page 5. 2. Fig. 3. Remove bearing housing. Do 1. through 8. of Bearing Housing and Connecting Rod proce- dure on page 8. 3. Fig. 4. Disconnect gallon counter sensor at (A). Cut tie wrap holding gallon counting sensor wire to clutch wire. -
Page 10: Pinion Assembly/Rotor/Field/Shaft/Clutch
Pinion Assembly/Rotor/Field/Shaft/Clutch Removal If pinion assembly (19) is not removed from clutch housing (5), do 1. through 4. Otherwise, start at 5. Relieve pressure; page 5. 2. Remove drive housing; page 9. 3. Disconnect field cable (X) from pressure control, and gallon counter sensor at (A). - Page 11 7. Fig. 7. Remove retaining ring (19e). 8. Tap pinion shaft (19d) out with plastic mallet. Fig. 7 9. Fig.8. Use an impact wrench or wedge something between armature (4a) and clutch housing to hold engine shaft during removal. 10. Remove four screws (16) and lockwashers (17). 11.
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Page 12: 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. 0.12 ±.01 in. (3.0 ±.25 mm) dimes Fig. -
Page 13: Clutch Housing
Removal 1. Fig. 11. Remove four capscrews (73) and lock- washers (77) which hold clutch housing (5) to engine. 2. Remove screw (15) from under mounting plate (D). 3. Remove engine key (7). 4. Pull off clutch housing (5). Installation 1. - Page 14 Removal Relieve pressure; page 5. 2. Fig. 14. Remove four screws (28) and display/cover (153). 3. Pull display connector wings (A) open on PC board and pull display connector out. 4. Disconnect ON/OFF switch connector (B) from PC board. 5. Press in on two retaining tabs on each side of ON/OFF switch (47) and remove switch.
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Page 15: Pressure Control
Removal Relieve pressure; page 5. 2. Fig. 14. Remove four screws (28) and display/cover (153). Pull display connector wings open on PC board and pull display connector out. 3. Fig. 21. Disconnect at control board (10): D Lead (D) from potentiometer. D Lead (E) from transducer. -
Page 16: Pressure Control Repair
Pressure Control Repair Digital Display Messages Relieve pressure before repair; page 5. No display does not mean that sprayer is not pressurized. DISPLAY SPRAYER OPERATION No Display Sprayer may be pressurized. Sprayer may be pressurized. Sprayer is pressurized. Power is ap- plied. -
Page 17: Displacement Pump
Displacement Pump Removal 1. Flush pump. Relieve pressure; page 5. 3. Fig. 15. Cycle pump with piston rod (222) in its lowest position. 4. Fig. 15. Remove suction tube (30) and hose (33). Fig. 15 Repair See manual 309277 for pump repair instructions. Installation WARNING If pin works loose, parts could break off due to... - Page 18 Parts Drawing – GMax 3900, 5900, 5900HD Hi-Boy Sprayers Models 233701, 233706 and 233716 DETAIL A Ref 11 Ref 35 DETAIL A 71 (Ref) 309409 Label See page 20 for the parts. See manual 309277 for the parts. See page 24 for the parts. Used on GMax 5900, 5900HD Used on GMax 3900 Used on GMax 3900, 5900...
- Page 19 Parts List – GMax 3900, 5900, 5900HD Hi-Boy Sprayers Models 233701, 233706 and 233716* Ref No. Part No. Description ENGINE 108879 GMax 3900 114530 GMax 5900, 5900HD 113084 RIVET, blind 192014 PLATE, indicator CLUTCH ASSEMBLY, includes 4a, 4b, 16, 17, 72, 80 241109 GMax 3900 241113...
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Page 20: Pinion Assembly
Parts List & Drawing – Pinion Assembly Ref No. 19 and 20 Ref No. 19: Pinion Housing Assembly 245398 for GMax 3900; Pinion Housing Assembly 245399 for GMax 5900, 5900HD Part No. Description PINION HOUSING KIT, repair, coil 245268 GMax 3900 245267 GMax 5900, 5900HD 105489... - Page 21 Notes 309409...
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Page 22: Gmax 3900 & Gmax 5900 Lo-Boy Sprayers
Parts Drawing – GMax 3900 and GMax 5900 Lo-Boy Sprayers Models 233700 and 233705 DETAIL A Ref 11 Ref 35 DETAIL A 309409 Label See page 20 for the parts. See manual 309277 for the parts. See page 24 for the parts. Used on GMax 5900 Used on GMax 3900 15 Ref... - Page 23 Parts List – GMax 3900 and GMax 5900 Lo-Boy Sprayers Models 233700 and 233705 Ref No. Part No. Description ENGINE 108879 GMax 3900 114530 GMax 5900 113084 RIVET, blind 192014 PLATE, indicator CLUTCH ASSEMBLY, includes 4a, 4b, 16, 17, 72, 80 241109 GMax 3900 241113...
- Page 24 Parts Drawing – Sprayer GMax 3900, 5900 and 5900HD Sprayers Models 233700 through 233703 Models 233706 through 233708; 233716 and 233717 309409 100n 100m 100a 47 Ref 100b 100c Ref 19 ti7660a 100d 100e 100f 100g 100h 62 Ref 100q 100r 100s 100k...
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Page 25: Pressure Control
Parts List – Sprayer Models 233700 through 233703; 233705 through 233707; 233716 and 233717 NO. PART NO. DESCRIPTION 245394 BOARD, PC Includes 10a NUT, nylon 198553 PANEL, control 164672 ADAPTER 116252 SCREW, #8 taptite, phil 116167 KNOB, potentiometer 116752 SWITCH, rocker, (spst) 198534 PLATE, control 198548... - Page 26 Parts List/Drawing – Sprayers with RAC X Models 233702, 233703, 233707, 233708, 233717 GMax 3900, 5900, 5900HD Airless Paint Sprayers Includes items 201 to 204 Part No. Description 233701 GM3900 Hi-Boy Sprayer See parts list on page 18 233706 GM5900 Hi-Boy Sprayer See parts list on page 18 233716 GM5900HD Hi-Boy Sprayer...
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Page 27: Dimensions
Honda GX120 Engine Power Rating @ 3700 rpm ANSI ..... . . DIN 6270B/DIN 6271 ..... . . -
Page 28: Graco Warranty
Graco warrants all equipment manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.