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INSTRUCTIONS-PARTS LIST
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
INSTRUCTIONS
ELECTRIC, 100 Vac, 50 or 60 Hz
595st Airless Paint Sprayer
20.7 MPa (207 bar, 3000 psi) Maximum Working Pressure
Model 231832, Series A
Low profile cart sprayer
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
ECOPYRIGHT 1997, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
308753
First choice when
quality counts.t
7299B
Rev. D
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Summary of Contents for Graco 231832
- Page 1 595st Airless Paint Sprayer 20.7 MPa (207 bar, 3000 psi) Maximum Working Pressure Model 231832, Series A Low profile cart sprayer 7299B GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441 ECOPYRIGHT 1997, GRACO INC. Graco Inc. is registered to I.S. EN ISO 9001...
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Page 2: Table Of Contents
General Repair Information ..... Model 231832 Sprayer Parts Drawing ... . -
Page 3: Warnings
WARNING INJECTION HAZARD Spray from the gun, leaks or ruptured components can inject fluid into your body and cause extremely serious injury, including the need for amputation. Fluid splashed in the eyes or on the skin can also cause serious injury. D Fluid injected into the skin is a serious injury. - Page 4 D Use the equipment only for its intended purpose. If you are not sure, call your distributor. D Do not alter or modify this equipment. Use only genuine Graco parts. D Check equipment daily. Repair or replace worn or damaged parts immediately.
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Page 5: Component Identification And Function
Component Identification and Function 7299B Fig. 1 Motor DC motor, 100 Vac, 10A, 1 phase Drive Assembly Transfers power from DC motor to the displacement pump Pressure Adjusting Knob Controls fluid outlet pressure ON/OFF Switch Power switch that controls 100 Vac power to sprayer Fluid Outlet Hose and spray gun is connected here Displacement Pump... -
Page 6: Setup
Setup 4. Fill the wet–cup (102). Pry off the wet-cup seal. WARNING Fill the cup 1/3 full with Graco Throat Seal Liquid (TSL), supplied. Install the wet-cup seal. If you supply your own hoses and spray gun, be sure the hoses are electrically conductive, that the 5. - Page 7 Setup 1/4 npsm(m) fluid outlet Do not install any shutoff device here Rotate clockwise to increase pressure Shown in closed or spray position Fill 1/3 full with TSL 04784B Fig. 4 308753...
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Page 8: Operation
Operation How to use the gun trigger safety Open or drain, position When engaged, the gun safety latch prevents the gun Closed, or spray position from accidental triggering. See Fig. 5. WARNING INJECTION HAZARD If the gun still sprays when the gun trigger safety is locked, repair the gun. - Page 9 Operation How to use the RAC IV tip guard. WARNING INJECTION HAZARD To reduce the risk of serious injury, whenever you are instructed to relieve pressure, follow the Pressure Relief Tip handle shown in Procedure on page 10. spraying position. Turn handle 180_, The tip guard alerts you to the risk and helps prevent trigger gun to clear clog...
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Page 10: Startup
Startup NOTE: Refer to Fig. 4 and the other figures referenced WARNING in the text as you start the sprayer. INJECTION HAZARD 1. Open the pressure drain valve (42). See Fig. 9. The system pressure must be manually relieved to prevent the system from 2. - Page 11 Startup b. If more coverage is needed, use a larger tip WARNING rather than increasing the pressure. FIRE AND EXPLOSION HAZARD c. Adjust the direction of the spray pattern. See To reduce the risk of static sparking and Fig. 10. Engage the gun safety latch. Loosen splashing when priming or flushing the the retaining nut (A).
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Page 12: Shutdown And Care
Shutdown and Care WARNING WARNING INJECTION HAZARD INJECTION HAZARD See the warning section INJECTION To reduce the risk of serious injury, HAZARD on page 3 for information on whenever you are instructed to relieve the hazard of using damaged hoses. pressure, follow the Pressure Relief Procedure on page 10. -
Page 13: Flushing
Flushing When to Flush 3. Pour 2 liters of compatible solvent into a grounded metal flushing pail. Put the suction hose in the pail. 1. Before using a new sprayer: flush out the oil which was left in to protect pump parts. 4. -
Page 14: Troubleshooting
Troubleshooting WARNING INJECTION HAZARD To reduce the risk of serious injury, whenever you are instructed to relieve pressure, follow the Pres- sure Relief Procedure on page 10. Basic Problem Solving Check everything in the troubleshooting table before disassembling the sprayer. TYPE OF PROBLEM WHAT TO CHECK WHAT TO DO... - Page 15 Basic Problem Solving TYPE OF PROBLEM WHAT TO CHECK WHAT TO DO If check is OK, go to next check When check is not OK, refer to this column Electrical 5. Check motor armature commutator for burn 5. Remove motor and have motor shop (continued) spots, gouges and extreme roughness.
- Page 16 Intermediate Problem Solving TYPE OF PROBLEM WHAT TO CHECK WHAT TO DO If check is OK, go to next check When check is not OK, refer to this column Low output 3. Release gun trigger. Observe resting position of 3. If pump consistently comes to rest with (continued) pump rod (107).
- Page 17 Intermediate Problem Solving TYPE OF PROBLEM WHAT TO CHECK WHAT TO DO When check is not OK, refer to this column If check is OK, go to next check 1. Spray tip worn beyond sprayer pressure capa- 1. Replace spray tip. Spray Pattern Variations bility.
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Page 18: General Repair Information
General Repair Information WARNING WARNING HOT SURFACE HAZARD INJECTION HAZARD During operation, the motor and drive To reduce the risk of serious injury, housing become very hot and could burn whenever you are instructed to relieve your skin if touched. Flammable materi- pressure, follow the Pressure Relief als spilled on the hot, bare motor could cause a fire Procedure on page 10. -
Page 19: Motor Test
Motor Test WARNING INJECTION HAZARD To reduce the risk of serious injury, whenever you are instructed to relieve pressure, follow the Pressure Relief Procedure on page 10. For checking armature, motor winding and brush electrical continuity. Setup 1. Remove the drive housing. See page 25. This is to ensure that any resistance you notice in the arma- ture test is due to the motor and not to worn gears in the drive housing. -
Page 20: Motor Brush
Motor Brushes NOTE: Replace brushes when worn to about 12.5 mm Motor lead; do not disconnect (0.5 in.). Always check both brushes. Brush Repair Kit Minimum 0.5” (12.5 mm) 236967, which includes spring clip 112766, is available for motors manufactured by Pacific Scientific. Included in Brush Repair Kit 236967 NOTE: Replacement brushes may last only half as... - Page 21 Motor Brushes 9. Test the brushes. WARNING a. Remove the pump connecting rod pin (17). See Fig. 19, page 22. MOVING PARTS HAZARD Do not touch the brushes, leads, springs b. With the sprayer OFF, turn the pressure con- or brush holders while the sprayer is trol knob fully counterclockwise to minimum plugged in to reduce the risk of electric pressure.
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Page 22: Displacement Pump Repair
(121*). For the best results, use leakage, but no tighter. Fill the packing nut/wet-cup all the new parts in the kit, even if the old ones still look 1/3 full with Graco TSL. Push the plug (123) into good. the wet-cup. -
Page 23: Motor
Motor 9. Align the new motor with the base and reinstall the WARNING screws (46). 10. Assemble the drive housing to the motor. Follow INJECTION HAZARD steps 8 to 10 on page 25. To reduce the risk of serious injury, whenever you are instructed to relieve 11. -
Page 24: Motor Start Board
6. Install the junction box. Be sure no leads are Motor Start Board pinched against the motor or by the motor start board. Also be sure the gasket (50) is installed. WARNING On/Off Switch INJECTION HAZARD To reduce the risk of serious injury, whenever you are instructed to relieve NOTE: See Fig. -
Page 25: Drive Housing, Connecting Rod, Crankshaft
Drive Housing, Connecting Rod, Crankshaft WARNING CAUTION Do not allow the gear (16) to fall; it may stay at- INJECTION HAZARD tached to the drive housing or to the motor. To reduce the risk of serious injury, whenever you are instructed to relieve Do not lose the thrust balls (11a or 4a) or let them fall pressure, follow the Pressure Relief between the gears, which will damage the drive hous-... - Page 26 Drive Housing, Connecting Rod, Crankshaft REF A Torque to 80 in–lb (9 N.m) Quantity of three Quantity of one Apply a total of 3 fl. oz.(89 cc) of grease to gears. Note: Filter not shown 03181A Fig. 25 308753...
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Page 27: Pressure Control
Pressure Control 7. Loosely install the screws (63) and then torque WARNING them to 2.4 N.m (21 in-lb). 8. Install the front cover (13). Connect the harness INJECTION HAZARD (A) to the motor start board (47). To reduce the risk of serious injury, whenever you are instructed to relieve 9. -
Page 28: Pressure Transducer
Pressure Transducer WARNING INJECTION HAZARD To reduce the risk of serious injury, whenever you are instructed to relieve pressure, follow the Pressure Relief Procedure on page 10. NOTE: See Fig. 27 for this procedure. 1. Remove the displacement pump. See page 22. 2. -
Page 29: Drain Valve
Drain Valve Repair WARNING 1. Unscrew the spring retainer from the valve body. Remove the spring, washers and stem/ball. Clean INJECTION HAZARD any debris from the ball or seat area. To reduce the risk of serious injury, whenever you are instructed to relieve 2. - Page 30 Sprayer Parts Drawing Model 231832, Series A 24 REF 66 REF REF 33 REF 32 OUT- SIDE LABEL INSIDE LABEL Label See page 31 for detail 04786A 308753...
- Page 31 Sprayer Parts List Model 231832, Series A Ref. Ref. Part No. Description Qty. Part No. Description Qty. 111827 WRENCH, hex, 3/8” (not shown) 187963 GASKET, junction box 280290 SLEEVE, cart 236524 FILTER, power inlet 237465 MOTOR KIT Includes 4a to 4f 107262 TERMINAL, 1/4”...
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Page 32: Technical Data
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.