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Repair Instructions

GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440- 1441

Copyright 2001, Graco Inc. is registered to I.S. EN ISO 9001

GMax

R

7900

Airless Paint Sprayer

3300

psi (227bar, 22.7 MPa) Maximum Working Pressure

See page 2 for models numbers.

Related Manuals

Operation

309408

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Displacement Pump

309277

. . . . . . . . . . . . . . . . . . . . . .

Spray Gun

309639

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Spray Tip

309640

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PC Board

309459

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Drain Valve Kit

308961

. . . . . . . . . . . . . . . . . . . . . . . . . . .

Clutch Replacement Kit

309890

. . . . . . . . . . . . . . . . . . .

309412F

ti1833a

Important Safety Instructions

Read all warnings and instructions in this manual.

Save these instructions.

Summary of Contents for 233718

Page 1: ...3300 psi 227bar 22 7 MPa Maximum Working Pressure See page 2 for models numbers Related Manuals Operation 309408 Displacement Pump 309277 Spray Gun 309639 Spray Tip 309640 PC Board 309459 Drain Valve...

Page 2: ...tip gun and hose Table of Contents Warnings and Cautions 3 Maintenance 4 Troubleshooting 5 Repair Rollers 8 Drive Housing 9 Cam Follower Bearings 10 Engine 11 Pressure Control 13 Displacement Pump 15...

Page 3: ...fluid pierces your skin the injury might look like just a cut but it is a serious wound Get immediate medical atten tion Fire and explosion Solvent and paint fumes can ignite or explode To help preven...

Page 4: ...taining nut or hose end coupling to relieve pressure gradually then loosen completely Now clear tip or hose CAUTION For detailed engine maintenance and specifications refer to separate Honda Engines O...

Page 5: ...nual 309408 Low pump output See Troubleshooting Table Pump Outlet Low page 6 Engine operates but displacement pump does not operate Error code displayed Determine fault correction from table page 14 P...

Page 6: ...091 Large pressure drop in hose with heavy materials Use larger diameter hose and or reduce overall length of hose Use of more than 100 ft of 1 4 in hose significantly reduces performance of sprayer U...

Page 7: ...llon counter not working Bad sensor broken or disconnected wire Check connections Replace sensor or wire No display sprayer operates Display damaged or has bad connection Check connections Replace dis...

Page 8: ...35 and cover assembly 13 Fig 1 ti1860a 56 87 108 109 71 77 59 13 87 35 Note A screw driver may be needed to pry off cover assembly 3 Remove dowel pins 108 and rollers 109 Installation 1 Install rolle...

Page 9: ...llation 1 Liberally apply bearing grease supplied with replacement gear cluster to gear cluster 102 washers 104 and 105 and to areas called out by note 1 Use full 0 68 pint 0 32 liter of grease for GM...

Page 10: ...th a screw driver 6 Remove two retainer rings 71d 7 Remove cam follower plate 71b Note Two 1 2 in x 13 bolts may be needed to remove cam follower plates 8 Remove two cam follower bearings 71c Installa...

Page 11: ...on work bench NOTE All service to the engine must be performed by an authorized HONDA dealer Fig 6 Green 1 2 To the field To the engine 7 97 2 1 ti1835 Fig 7 7 6 8710B Installation 1 Lift engine caref...

Page 12: ...etaining tabs on each side of ON OFF switch 51 and remove switch Installation 1 Install new ON OFF switch 51 so tabs of switch snap into place on inside of pressure control housing 2 Connect ON OFF sw...

Page 13: ...Disconnect lead E from control board 302 4 Remove two screws 141 and guard 147 Care fully pull transducer connector through rubber grommet 145 5 Remove pressure control transducer 61q and packing o ri...

Page 14: ...g Pressure transducer faulty bad connection or broken wire Check transducer connections and wire Replace transducer or control board if necessary Sprayer stops Engine is running High clutch current 1...

Page 15: ...ge Make sure pin 101 and retaining clip 71a are properly installed See Detail A Fig 10 CAUTION If the pump locknut loosens during operation the threads of the bearing housing will be damaged Make sure...

Page 16: ...two bolts 107 washers 79 pump bracket 110 pail hook 90 and shield 113 3 Fig 10 Remove clip 71a Installation 1 Fig 10 Install clip 71a 2 Install shield 113 pail hook 90 and pump brack et 110 with two...

Page 17: ...41114 PINION SHAFT 8e 112770 RETAINING RING large 71 DRIVE HOUSING 1 71a 194060 RETAINING CLIP pump pin 1 71b 193656 CAM FOLLOWER PLATE 1 71c 114691 CAM FOLLOWER BEARING 2 71d 114828 RETAINER CLIP 2 7...

Page 18: ...87 56 108 109 71 65 66 105 8 87 56 1b 42 88 98 REF 49 81 49 92 16 27 31 32 32 4 64 28 94 41 124 123 132 9 100 44 42 23 1a 3 36 86 42 26 24 42 70 57 DETAIL A Ref 28 7 6 60 35 59 87 38 39 92 43 10 5 12...

Page 19: ...cket hd 2 60 290228 LABEL caution 1 64Y 194126 LABEL warning 1 65Y 194127 LABEL warning 1 66Y 194317 LABEL danger English 1 67Y 195119 LABEL warning tag 1 68Y 195519 LABEL caution 1 69Y 192840 LABEL w...

Page 20: ...309412 20 Parts Drawing Sprayer 61n 61m 61k 310 74 55 147 141 122 302 51 29 310 50 51 302a 61d 61e 145 61c 61b 61a Ref 70 150 54 61j 61p 61f 139 139 52 61h 61g 61s 61q 22 61r 143 151 ti1838a 152...

Page 21: ...14708 SPRING compression 1 61m 194102 HANDLE valve 1 61n 114688 NUT cap hex hd 1 61p 111457 O RING 1 61q 243222 TRANSDUCER pressure control 1 includes 61p 61r 197055 GASKET plug 1 61s 196781 PLUG Auto...

Page 22: ...ing guards both ends 1 204 246220 CONTRACTOR SPRAY GUN Includes RAC X 517 size SwitchTipt and HandTitet Guard See 309639 for parts 1 205 159841 ADAPTER 1 204 203 202 0160 205 Accessories French 194931...

Page 23: ...en reusable Outlet paint filter 60 mesh 250 micron stainless steel screen reusable Pump inlet size 3 4 in npt m Fluid outlet size 3 8 npsm from fluid filter Wetted parts zinc plated carbon steel PTFE...

Page 24: ...er remedy including but not limited to incidental or consequential damages for lost profits lost sales injury to person or property or any other incidental or consequential loss shall be available Any...

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