Owner`s manual

ManualsBrandsSherwin-Williams ManualsPaint Sprayer824175 A Series

OWNER’S

MANUAL

824113

Rev A

Related Manuals

Operator 824112. . . . . . . . . . . . . . . . . . . . . . . . . . .

Displacement Pump 308190. . . . . . . . . . . . . . . . .

FTx Spray Gun 308645. . . . . . . . . . . . . . . . . . . . .

Spray Tip 308644. . . . . . . . . . . . . . . . . . . . . . . . . . .

All models are not available in all countries

U.S. PATENT NO. 4,323,741; 4,397,610 P ATENTED

1983, CANADA AND OTHER PATENTS PENDING

Model 820169

8733

Model 824175

INSTRUCTIONS-REPAIR

SUPER NOVAt SP

ELECTRIC, AIRLESS PAINT SPRAYER

3000 psi (210 bar, 21 MPa) Maximum Working Pressure

Model 820169, Series D

Complete sprayer with hose, gun,

RAC IVr DripLesst Tip Guard and SwitchTipt

Model 824175, Series A

Upright cart; complete sprayer with hose, gun,

RAC IVr DripLesst Tip Guard and SwitchTipt,

tool box

Table of Contents

Component Function and Identification 2. . . . . . . . . . . .

General Repair Information 3. . . . . . . . . . . . . . . . . . . . . .

Grounding 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Motor Test 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Motor Brush Replacement 10. . . . . . . . . . . . . . . . . . . . .

Displacement Pump Repair 12. . . . . . . . . . . . . . . . . . . . .

Motor Replacement 13. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Motor Start Board 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Supply Cord 14. . . . . . . . . . . . . . . . . . . . . . . . . . . .

On/Off Switch 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Drive Housing, Connecting Rod, Crankshaft 15. . . . . .

Pressure Control 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pressure Transducer 17. . . . . . . . . . . . . . . . . . . . . . . . . . .

Suction Hose 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Drain Valve 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Model 820169 Sprayer Parts Drawing 19. . . . . . . . . . . .

Model 820169 Sprayer Parts List 20. . . . . . . . . . . . . . . .

Model 824175 Sprayer Parts Drawing 21. . . . . . . . . . . .

Model 824175 Sprayer Parts List 22. . . . . . . . . . . . . . . .

Technical Data 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dimensions 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Sherwin-Williams Warranty 24. . . . . . . . . . . . . . . . . . . . .

The SHERWIN-WILLIAMS COMPANY, CLEVELAND, OHIO 44115

This manual contains important

warnings and information.

READ AND RETAIN FOR REFERENCE

Summary of content (24 pages)

PAGE 1
INSTRUCTIONS-REPAIR OWNER’S MANUAL 824113 This manual contains important warnings and information.
PAGE 2
Component Identification and Function N C H B A K E G L F M D J Model 820169 Shown 06973 Fig.
PAGE 3
General Repair Information WARNING CAUTION To reduce risk of pressure control malfunction: Use needle nose pliers to disconnect a wire. Never pull on wire, pull on connector. Mate wire connectors properly. Center flat blade of insulated male connector in female connector. Route wires carefully to avoid interference with other connections of pressure control. Do not pinch wires between cover and control box.
PAGE 4
Grounding WARNING Improper installation or alteration of grounding plug results in risk of electric shock, fire or explosion that could cause serious injury or death. 1. Models 820169 and 824175 require a 120 VAC, 50/60 Hz, 15A circuit with a grounding receptacle. See Fig. 2. 2. Do not alter ground prong or use adapter. 4 824113 Grounded Outlets Grounding Prong Fig. 2 3. A 12 AWG, 3 wires with grounding prong, 300 ft (90 m) extension cord may be used. Long lengths reduce sprayer performance.
PAGE 5
Troubleshooting Relieve pressure; page 3. Basic Problem Solving Check everything in the troubleshooting table before disassembling the sprayer. TYPE OF PROBLEM WHAT TO CHECK If check is OK, go to next check WHAT TO DO When check is not OK, refer to this column Fluid pressure 1. Pressure control knob setting. The pump won’t develop much pressure if it is at minimum setting (fully counterclockwise). 1. Slowly increase pressure setting to see if motor starts. 2.
PAGE 6
Basic Problem Solving TYPE OF PROBLEM WHAT TO CHECK If check is OK, go to next check WHAT TO DO When check is not OK, refer to this column Electrical (continued) 5. Motor armature commutator for burn spots, gouges and extreme roughness. Remove motor cover and brush inspection plates to check. See page 10. 5. Remove motor and have motor shop resurface commutator if possible. See page 13. 6. Motor armature for shorts using armature tester 6. Replace motor. See page 13. (growler) or perform motor test.
PAGE 7
Intermediate Problem Solving TYPE OF PROBLEM WHAT TO CHECK If check is OK, go to next check WHAT TO DO When check is not OK, refer to this column Low output (continued) 3. Release gun trigger. Observe resting position of 3. If pump consistently comes to rest with pump rod (107). rod (107) fully extended, the piston packings and/or piston valve may be worn. Service the pump. See page 12. 4. Electrical supply. Meter must read: 105–125 VAC for models 820169 and 824175. 4.
PAGE 8
Intermediate Problem Solving TYPE OF PROBLEM WHAT TO CHECK If check is OK, go to next check WHAT TO DO When check is not OK, refer to this column Spray Pattern Variations 1. Spray tip worn beyond sprayer pressure capability. 1. Replace spray tip. NOTE: A smaller size tip will provide longer life. 2. Transducer (29) for wear or damage. 2. Replace transducer. See page 17. 3. Pressure control (64) for smooth operation. 3. Replace pressure control. See page 16. 4. Low output section, page 7.
PAGE 9
Motor Test Relieve pressure; page 3. For checking armature, motor winding and brush electrical continuity. Setup Remove the drive housing. See page 15. This is to ensure that any resistance you notice in the armature test is due to the motor and not to worn gears in the drive housing. B A Remove the motor brush inspection covers (A). See Fig. 3. Remove the junction box screws (56). Lower the junction box. Disconnect the two leads (C) from the motor to the board (47). See Fig. 4.
PAGE 10
Motor Brush Replacement NOTE: Replace brushes when worn to about 0.5 in. (12.5 mm). Always check both brushes. Brush Repair Kit 236–967, which includes spring clip 112–766, is available for motors manufactured by Pacific Scientific. Motor lead; do not disconnect Minimum 0.5” (12.5 mm) Included in Brush Repair Kit 236–967 NOTE: Replacement brushes may last only half as long as the original ones.
PAGE 11
Motor Brush Replacement 9. Test the brushes. a. Remove the pump connecting rod pin (17). See Fig. 9, page 12. b. With the sprayer OFF, turn the pressure control knob fully counterclockwise to minimum pressure. Plug in the sprayer. c. Turn the sprayer ON. Slowly increase the pressure until the motor is at full speed. d. Inspect the brush and commutator contact area for excessive arcing. Arcs should not trail or circle around the commutator surface.
PAGE 12
Displacement Pump Repair Relieve pressure; page 3. NOTE: Packing Repair Kit 235703 is available. Reference numbers of parts included in the kit are marked with an asterisk, i.e., (121*). For the best results, use all the new parts in the kit, even if the old ones still look good. NOTE: To minimize down time, and for the best sprayer performance, check the motor brushes (see page 10) and clean the transducer (see page 17) whenever you repack the pump. Replace these parts as needed. 2.
PAGE 13
Motor Replacement 10. Assemble the drive housing to the motor. Follow steps 8 to 10 on page 15. Relieve pressure; page 3. 11. Connect the wires in the junction box. Refer to Fig. 13 on page 14. Install the junction box. NOTE: See Fig. 12 except where noted. 1. Relieve pressure. 2. Try to stop the pump with the piston rod (107) in its lowest position. To lower the piston rod manually, rotate the motor fan blades. Use a screwdriver to push the retaining spring (18) up and push out the pin (17). See Fig.
PAGE 14
Motor Start Board 6. Install the junction box. Be sure no leads are pinched against the motor or by the motor start board. Also be sure the gasket (89) is installed. On/Off Switch Relieve pressure; page 3. NOTE: See Fig. 13 for this procedure. NOTE: See Fig. 13 for this procedure. 1. Relieve pressure. 1. Relieve pressure. 2. Remove the junction box screws (56) and lower the junction box (59). 2. Remove the junction box screws (56) and lower the junction box (59). 3.
PAGE 15
Drive Housing, Connecting Rod, Crankshaft CAUTION Relieve pressure; page 3. Do not allow the gear (16) to fall; it may stay attached to the drive housing or to the motor. Removal NOTE: Inspect parts as they are removed. Replace parts that are worn or damaged. 1. Remove the displacement pump. See page 12. 2. Remove the pressure control (64). See page 16. 3. Turn the displacement pump rod (107) so the pin hole aligns with the bottom drive housing screw (19). See Fig. 14.
PAGE 16
Drive Housing, Connecting Rod, Crankshaft 5,6 64 REF A 12a 11a 12 C 4a 12b 16 Torque to 2.4 N.m (21 in–lb) Quantity of three Quantity of one Apply a total of 3 fl. oz.(29 cc) of grease to gears. A 47 59 56 31 6 Note: Filter not shown 13 34 Fig. 15 15 11 19 02815 Pressure Control Relieve pressure; page 3. NOTE: See Fig. 16 for this procedure. NOTE: The pressure control (64) cannot be repaired or adjusted. If it has malfunctioned, replace it. 8. Install the front cover (13).
PAGE 17
Pressure Transducer Relieve pressure; page 3. NOTE: See Fig. 17 for this procedure. 1. Remove the displacement pump. See page 12. 2. Use a pull–twist motion to remove the transducer (29) from the pump manifold (101). 3. Clean paint residue from the hole in the manifold; do not scratch the surface of the hole. 29 4. Lightly apply oil to the o-ring of the new transducer. 101 5. Install the transducer in the pump manifold, while guiding the o-ring and backup ring into place. 6.
PAGE 18
Drain Valve Repair Relieve pressure; page 3. 42a Apply thread sealant 42b Apply grease to face of base 42d 42c 1. Unscrew the spring retainer from the valve body. Remove the spring, washers and stem/ball. Clean any debris from the ball or seat area. Torque into pump manifold to 185 in–lb (21 N.m) Handle shown in closed position 42 44 45 NOTE: Whenever the gasket (42a) is removed, replace it with a new one. 3. Coat the o-ring (42d) with grease. Press the stem into the valve body.
PAGE 19
Sprayer Parts Drawing Model 820169, Series D 39 30 74 67 Label See detail on page 20 24 REF 33 4e 3 REF 32 6 64 5 4 4a 16 12 63 19 15 6 11b 4f 4g 12a 89 11a 17 OUTSIDE 35 LABEL 12b 11 13 18 26 66 50 14 56 INSIDE LABEL 29 42a 42b 42d 42c 28 31 34 21 20 36 32 33 23 23 42 43 44 46 45 37 27 38 25 06974 824113 19
PAGE 20
Sprayer Parts List Model 820169, Series D Ref. No. Part No. Description 3 4{ 111700 237458 4a 4b 4c 4dY 4eY 4fY 5 6 11 100069 111616 107503 187784 187791 187975 100643 105510 224965 11a 11b 12 100069 111726 224803 12a 12b 13 14Y 15 16 17 18 19 180131 107434 187789 177762 218359 218364 176818 176817 103345 20 235699 21 23 24 25 26 27H 28 111706 111715 192166 112759 239276 104938 162453 GRIP, handle MOTOR KIT Includes items 4a to 4f . BALL, sst, 1/4” dia. . TERMINAL, flat, 1/4” (f), 18 awg .
PAGE 21
Sprayer Parts Drawing Model 824175, Series A 3 93 90 72 91 78 24 4 19 4a 12a 4d 4e on opposite side 12 11b 4f on opposite side 4g on opposite side 19 15 35 17 OUTSIDE LABLE 18 23 105 16 63 96 100 12b 64 62 11a 89 46 59 56 11 29 20 50 38 28 42a 42b 42d 42c 31 34 14 INSIDE LABLE 98 99 66 42 21 13 41 40 43 36 32 44 45 26 33 25 30 74 37 65 67 39 Label See page 22 for detail 824113 21
PAGE 22
Sprayer Parts List Model 824175, Series D Ref. No. Part No.
PAGE 23
Technical Data Power Requirements . . . . . . . . . . . . . . . . . . .120 . VAC, 60 Hz, 1 phase, 15A minimum Generator . . . . . . . . . . . . . . . . . . . . . . . . . . .3000W . minimum Working Pressure Range 0–3000 psi (0–210 bar, 0–21 MPa) Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3/4 . . .hp Cycles/Gallon (liter) . . . . . . . . . . . . . . . . . . . . . . . . . 620 . . (164) Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.50 . . gpm (1.
PAGE 24
Sherwin-Williams Warranty Graco warrants all equipment listed in this manual which is manufactured by Graco and bearing its name to be free from defectsin material and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use. With the ception ex 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.