Table of Contents
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Repair
™
GMAX
II 3900/5900/7900
™
TexSpray
Airless Sprayers
Korean patent: 10-0647761
- For Portable Airless Spraying of Architectural Coatings and Paints -
3300 psi (22.8 MPa, 228 bar) Maximum Working Pressure
IMPORTANT SAFETY INSTRUCTIONS
Read all warnings and instructions in this
manual. Save these instructions.
GMAX 3900
Model
Hi-Boy
Premium
(QuikReel)
248683
248684
249335
✓
258731
258736
GMAX 5900
Model
Hi-Boy
Premium
(QuikReel)
248687
248688
✓
258732
258737
TexSpray 5900 HD
Model
Hi-Boy
Premium
(QuikReel)
✓
258734
GMAX 7900
Model
Hi-Boy
Premium
(QuikReel)
248700
248701
✓
258733
258738
GMAX 7900
Model
Hi-Boy
Premium
(QuikReel)
✓
258735
5900HD/7900HD
Hi-Boy
Lo-Boy
Lo-Boy
Standard
Premium
Standard
(QuikReel)
✓
✓
✓
Hi-Boy
Lo-Boy
Lo-Boy
Standard
Premium
Standard
(QuikReel)
✓
✓
Hi-Boy
Lo-Boy
Lo-Boy
Standard
Premium
Standard
(QuikReel)
Hi-Boy
Lo-Boy
Lo-Boy
Standard
Premium
Standard
(QuikReel)
✓
✓
Hi-Boy
Lo-Boy
Lo-Boy
Standard
Premium
Standard
(QuikReel)
✓
✓
✓
3A0243A
ENG
ti14916a
Related Manuals:
Operation
3A0242
Parts
3A0244
Gun
311861
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Table of Contents
Troubleshooting
Related Manuals for Graco 3A0243A
Summary of Contents for Graco 3A0243A
- Page 1 Lo-Boy Lo-Boy Premium Standard (QuikReel) ✓ ✓ Lo-Boy Lo-Boy Premium Standard (QuikReel) ✓ ✓ Lo-Boy Lo-Boy Premium Standard (QuikReel) Lo-Boy Lo-Boy Premium Standard (QuikReel) ✓ ✓ Lo-Boy Lo-Boy Premium Standard (QuikReel) 3A0243A ti14916a Related Manuals: Operation 3A0242 Parts 3A0244 311861...
- Page 2 Keep clear of moving parts. • Do not operate equipment with protective guards or covers removed. • Pressurized equipment can start without warning. Before checking, moving, or servicing equip- ment, follow the Pressure Relief Procedure and disconnect all power sources. WARNING 3A0243A...
- Page 3 This equipment includes but is not limited to: • Protective eyewear, and hearing protection. • Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufac- turer. 3A0243A WARNING Warning...
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Page 4: Maintenance
(NIPPONDENSO) plug. Gap plug to 0.028 to 0.031 in. (0.7 to 0.8 mm). Use spark plug wrench when installing and removing plug. Premium Sprayers Engine Oil Funnel: Use the supplied engine oil funnel when draining oil. OIL FUNNEL ti6200a 3A0243A... -
Page 5: Troubleshooting
Engine will not start False tripping of WatchDog system. EMPTY is displayed. Pump does not run. Engine operates, but displacement pump does not operate 3A0243A Troubleshooting Cause Fault condition exists. Engine switch is OFF. Engine is out of gasoline. Engine oil level is low. - Page 6 Clutch surfaces need to wear into each other. Noise will dissipate after a day of run time. Reset throttle to 3300 engine rpm at no load. Replace or service engine governor. Check connections. Replace sensor or wire. Reposition or replace magnet. Check connections. Replace display. 3A0243A...
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Page 7: Fluid Pump Runs Constantly
10-18 DC volts? Unplug transducer from control board. Bad transducer. Replace and test with a new one. 3A0243A 1. Perform Pressure Relief Procedure (page 4), turn prime valve forward to SPRAY position, and turn power switch OFF. 2. Remove control box cover. -
Page 8: Control Board Malfunction
If proper connection is Go to step 2. detected, repair Do you have proper engine or replace engine voltage? generator. Connect a test transducer to the board. Does the clutch engage? Replace transducer. Replace control board. 3A0243A... -
Page 9: Control Board Malfunction (Steps)
OFF and unplug ti14942a clutch wires. Set meter to Ohms. Clutch Control Field Board Clutch Test Points 3A0243A STEP 2. 12 -20 AC Turn engine ON. Set meter to AC volts and connect wires to control board. ti14939a Control Board... -
Page 10: Convertible Electric Motor Will Not Run
Replace the power switch. See Step 4. Is there continuity through the thermal sensor? Replace engine control board. Repair or replace the power cord. If engine is hot, let cool and retest. If step 4 still shows an open, replace engine. 3A0243A... -
Page 11: Convertible Electric Motor Will Not Run (Steps)
ON. Turn meter to DC volts. Engine Control Board TS TS ti14923a Electric Engine Yellow 3A0243A STEP 2. Plug in cord and turn switch ON. Connect wires to control board and turn meter to AC volts. Transformer Black Black... -
Page 12: Convertible Electric Motor Runs - No Ac Output To Sprayer Control Board
Is there over 100 AC volts? See step 5. Is there over 10-20 AC volts. Replace cord jack. Repair or replace the power cord. Repair or replace the power cord. Repair or replace wire splice(s) on the power cord wires. Replace transformer. 3A0243A... - Page 13 Turn meter to AC volts. Transformer Power ti14929a Cord White White Black Electric Engine Control Board 3A0243A Black White to barrel Jack Black Power Cord AC power to control board Black to tips White Engine Control Board...
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Page 14: Digital Display Messages
Open prime valve and gun. 2000 psi (138 bar, 14 MPa) Verify no flow obstructions or clogged filter. while in Flush Timer Mode. After a fault, follow these steps to restart sprayer: Correct fault condition Turn sprayer OFF Turn sprayer ON ACTION 3A0243A... -
Page 15: Bearing Housing And Connecting Rod
(F) in drive housing (33) with holes in bearing housing (40). Push bearing housing onto drive housing or tap into place with plastic mal- let. 3A0243A Bearing Housing and Connecting Rod NOTICE DO NOT use bearing housing screws (41) to align or seat bearing housing with drive housing. -
Page 16: Drive Housing
GMAX II 7900: Torque to 200 ±10 in-lb (22.6 ±1.1 N Texspray 5900HD: Torque to 200 ±10 in-lb (22.6 ±1.1 N Texspray 7900HD: Torque to 200 ±10 in-lb (22.6 ±1.1 N Gallon counter sensor Pack with grease 114819 NOTICE • • • • • Copper Steel 3A0243A... -
Page 17: Pinion Assembly/Clutch Armature Removal
5. Remove four screws (28) and lock washers (24). Install two screws in threaded holes (E) in rotor. Alternately tighten screws until rotor comes off. ti5481a 3A0243A 6. Remove retaining ring (29b). 7. Turn pinion assembly over and tap pinion shaft (29a) out with plastic mallet. -
Page 18: Clamp Removal
Face of clutch housing 1.550 ± .010 in. (39.37 ± .25 mm) - GMAX 3900 2.612 ± .010 in. (66.34 ± .25 mm) - GMAX 5900 & 7900 Torque to 125 ±.10 in-lb (14 ±1.1 N·m) Chamfer this side ti6199a 3A0243A... -
Page 19: Clutch Housing
2. Install four capscrews (20) and lock washers (21) and secure clutch housing (19) to engine. Torque to 200 in-lb (22.6 N·m). 3. Install screw (35) from beneath mounting plate (D). Torque to 26 ft-lb (35.2 N·m). ti5486a 3A0243A Clutch Housing Clutch Housing... - Page 20 2. Install two screws (16) in base of engine and secure with lock nuts (17). Torque to 26 ft-lb (22.6 N·m). 3. Connect all necessary wiring. 4. Install Pinion Assembly/Clutch Armature/Clamp and Clutch Housing, as instructed on pages 17, and 18. Bottom View 5900/7900 ti5487a 3A0243A...
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Page 21: Pressure Control
TO ENGINE 15 5900/7900 130a 130f 130j 130d 130h 3A0243A Pressure Control Pump ON/OFF Switch 3. Press in on two retaining tabs on each side of pump ON/OFF switch (130f) and remove switch from cover. Installation 1. Install new pump ON/OFF switch (130f) so tabs of switch snap into place on inside of cover. -
Page 22: Control Board
1/4 to 3/8 turn after contact with shaft. Connect potentiometer lead to control board (130b). Swing up cover (130a) and secure with two screws (71). After a fault, follow these steps to restart sprayer: Correct fault condition. Turn sprayer OFF. Turn sprayer ON. 3A0243A... -
Page 23: Displacement Pump
2. Stop pump with piston rod in its lowest position. 3. Do Pressure Relief, page 4. 4. Separate drain hose from sprayer. 5. Disconnect material hose from pump. ti6300a 3A0243A Displacement Pump 6. Raise latch lock. Push latch open. 7. Ratchet open pump door. a. Ratchet pump door forward. - Page 24 3. Slide pump into connecting rod. Push pump pin until it is fully retained. Pin will snap into position. NOTE: 4. Close pump door and rotate latch into position. Do not tighten latch. ti14908a ti14906a ti6325a ti5492a ti6378a ti14907a ti6313a 3A0243A...
- Page 25 70 in-lb. ti6299a 6. Tighten latch and rotate latch lock into locked posi- tion. TI6312a ti6312a 3A0243A 7. Attach drain hose to sprayer. 8. Fill pump with Graco TSL until fluid flows onto top of seal. ti6204a ti6204a...
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Page 26: Hose Reel
1. Remove hose fitting from swivel cap and completely remove hose. ti15023a 2. Remove cap from swivel. ti13675a 3. Remove E-clip from swivel shaft. ti13538a 4. Remove swivel cap. ti13543a 5. Remove snap ring. ti13542a 6. Remove hose reel. ti15024a 3A0243A... - Page 27 Install snap ring. ti13536a 4. Install swivel cap. ti13543a 3A0243A 5. Install E-clip. ti13538a 6. Install hose to hose cap. Make sure to route hose through side arm of hose reel.
- Page 28 3. Install o-ring and replace swivel shaft (B) if it was removed. ti13544a 4. Replace coupling (C). 5. Replace rigid fluid tube to swivel shaft if it was removed. 6. Replace Hose Reel, page 27. ti15022a ti15025a 3A0243A...
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Page 29: Technical Data
Outlet paint filter Pump inlet size Fluid outlet size: 3900/5900 Fluid outlet size: 7900 Wetted parts 3A0243A Technical Data zinc-plated carbon steel, PTFE, nylon, polyurethane, UHMW polyethylene, fluoroelastomer, acetal, leather, aluminum, tung- sten carbide, nickel- and zinc-plated carbon steel, stainless Technical Data 4.0 Horsepower (3.0 kW) - Page 30 146 (67) TexSpray 7900HD 157 (71) Dimensions Height in. (cm) Width in. (cm) 31.5 (80.0) 22.25 (56.5) 32.25 (81.9) 24.5 (62.2) 32.25 (81.9) 24.5 (62.2) 32.25 (81.9) 24.5 (62.2) Length in. (cm) 32.0 (81.3) 32.25 (81.9) 33.0 (83.8) 33.0 (83.8) 3A0243A...
- Page 31 Notes Notes 3A0243A...
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Page 32: Graco Standard Warranty
Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale 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.