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INSTRUCTIONS–PARTS LIST
120 VAC, 18A
ULTRA Plus + 1500
Airless Paint Sprayer
3000 psi (210 bar) Maximum Working Pressure
Part No. 231–351, Series A
Basic Sprayer on upright cart without hose or gun.
Part No. 231–352
Complete sprayer on upright cart with hose, gun,
RAC IV DripLess
Tip Guard and SwitchTip
Part No. 223–773, Series A
Same as Model 231–351, except CSA certified
Patents Pending
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
This manual contains important
warnings and information.
READ AND RETAIN FOR REFERENCE
COPYRIGHT 1994, GRACO INC.
308–551
Rev A
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Related Manuals for Graco 231-351
Summary of Contents for Graco 231-351
- Page 1 Complete sprayer on upright cart with hose, gun, RAC IV DripLess Tip Guard and SwitchTip Part No. 223–773, Series A Same as Model 231–351, except CSA certified Patents Pending GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441 COPYRIGHT 1994, GRACO INC.
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Page 2: Table Of Contents
This equipment is for professional use only. Read all instruction manuals, tags, and labels before operating the equipment. Use the equipment only for its intended purpose. If you are not sure, call Graco Technical Assis- tance at 1–800–543–0339. Do not alter or modify this equipment. -
Page 3: Warnings
WARNING WARNING INJECTION HAZARD Spray from the gun, leaks or ruptured components can inject fluid into your body and cause ex- tremely serious injury, including the need for amputation. Fluid splashed in the eyes or on the skin can also cause serious injury. Fluid injected into the skin is a serious injury. - Page 4 WARNING WARNING FIRE AND EXPLOSION HAZARD Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and result in a fire or explosion and serious injury. If there is any static sparking or you feel an electric shock while using this equipment, stop spraying immediately.
- Page 5 Major Components 01888 Fig. 1 Motor (Under shield shown) DC motor, 120 Vac, 18A, 1 phase Pressure Adjusting Knob Controls fluid outlet pressure ON/OFF Switch, Circuit Breaker Power switch that controls 120 Vac power to sprayer; with circuit breaker Drive Assembly Transfers power from DC motor to the displacement pump Fluid Filter Filter of fluid between source and spray gun...
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Page 6: Setup
3/16 in. ID, 3 ft. whip hose be- tween the main hose and the gun. 3. Fill the packing nut/wet–cup (216) 1/3 full with Graco Throat Seal Liquid (TSL), supplied. WARNING FIRE AND EXPLOSION HAZARD Proper electrical grounding is essential... -
Page 7: Operation
Operation WARNING CAUTION INJECTION HAZARD Do not run the sprayer dry for more than 30 sec- onds to avoid damaging the pump packings. To reduce the risk of serious injury, whenever you are instructed to relieve pressure, follow the Pressure Relief 7. - Page 8 Operation 9. Install the spray tip and tip guard. Engage the 3. Return the switch tip to the original position, disen- gun safety latch. Install the spray tip. If you are gage the gun safety latch, and resume spraying. using the RAC IV tip guard, refer to manual 307–848 for installation instructions.
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Page 9: Flushing
Flushing When to Flush 5. Storage. Flush as indicated below, shut off the sprayer, open the pressure drain valve to relieve 1. New Sprayer. The sprayer was factory tested in pressure and leave it open. lightweight oil which was left in to protect pump parts. -
Page 10: Troubleshooting
Troubleshooting Pressure Relief Procedure 4. Disengage the gun safety latch. Hold a metal part of the gun firmly to a grounded metal pail. To reduce the risk of serious bodily injury, including Trigger the gun to relieve pressure. fluid injection, injury from splashing fluid or solvent in 5. - Page 11 Troubleshooting 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 Motor runs and pump strokes, Check extension cord size and length. Replace cord with a larger size, grounding but output is low or there is no type extension cord.
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Page 12: Motor Brush
Motor Brush NOTE: Replace the brushes when they have worn to 9. Reinstall the remaining parts. about 0.4 in (10 mm). Always check both brushes and replace them together. A Brush Repair Kit, p/n 220–853, and the spring clip, p/n 110–816, are avail- able. -
Page 13: Displacement Pump
Pressure Relief sleeve and cylinder to your Graco distributor for Procedure on page 10. removal. 1. Flush the pump, if possible, and relieve pressure again. - Page 14 Displacement Pump Disassembly NOTE: Parts included in the Packing Repair Kit, P/N 220–877, are marked with an asterisk (*) in the text and drawings. Use all the new parts in the kit. 1. Loosen the packing nut (216) and remove the plug (205).
- Page 15 Displacement Pump Pump Reassembly 1. Clean the piston valve threads. One at a time, stack the backup washer (203*), seal (215*) (with *225 lips facing down), and female gland (214*) on the piston. Alternately stack the polyethylene (212*) and leather (206*) packings (lips facing up) on the piston.
- Page 16 Displacement Pump 7. Loosely install the packing nut (216) and plug (205). See Fig. 29. 8. Place a o-ring (217*) in the cylinder. Slide the sleeve in to the cylinder to seat the o-ring. See Fig. 30. Remove the sleeve. 9.
- Page 17 Torque to 70 ft-lb (97 N.m) 5. Tighten the packing nut/ wet-cup just enough to stop leakage, but no tighter. Fill the wet-cup/pack- ing nut 1/3 full with Graco TSL. See Fig. 40. Fig. 39 02582 Fig. 40 02583 02579...
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Page 18: Pressure Control
Pressure Control 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: Refer to Fig. 41 except where noted. 1. Disconnect the hose (47). 2. -
Page 19: Motor
Motor 7. Use a plastic mallet to tap the displacement pump WARNING (39) from the rear to loosen the drive housing (18) from the motor end bell (F). Pull off the drive hous- INJECTION HAZARD ing. To reduce the risk of serious injury, 8. -
Page 20: Bearing Housing & Connecting Rod
Bearing Housing & Connecting Rod NOTE: Stop the sprayer at the bottom of its stroke to WARNING get the crank (H) in its lowest position.To lower the crank manually, rotate the blades of the motor fan with INJECTION HAZARD a screwdriver. To reduce the risk of serious injury, whenever you are instructed to relieve 1. -
Page 21: Drive Housing
Drive Housing 7. Tap the drive housing (18) with a plastic mallet to WARNING loosen it from the motor end bell, then pull it straight off. INJECTION HAZARD To reduce the risk of serious injury, CAUTION whenever you are instructed to relieve pressure, follow the Pressure Relief To avoid damage to the drive housing: Procedure on page 10. -
Page 22: Sprayer Parts Drawing
Sprayer Parts Drawing 71 , Ref 101 38 75 Ref 37... -
Page 23: Sprayer Parts List
Sprayer Parts List Model 231–351, Series A Ref. Part No. Description Qty. Basic Sprayer, Includes items 1–103,107, 108 PRESSURE CONTROL KIT Model 231–352 includes items 13, 16, 23, 2 of 28, 34,4 of 84 Complete Sprayer, Includes items 1 – 108 223–803 NEW KIT, for Models 231–351 &... -
Page 24: Displacement Pump Parts Drawing And List
Displacement Pump Parts Drawing and List Model 220–872, Series A Displacement Pump Includes items 202 to 225 Ref. Part No. Description Qty. PTFE 202* 107–098 PACKING, o-ring, 209* 203* 108–690 SEAL, u–cup, polyurethane 225* 204* 108–775 BALL; sst 183–171 PLUG 1 206* 183–174 V-PACKING, leather... -
Page 25: Accessories
214–961 HOSE, cpld 3/4 npt(mbe); 3/4” ID; nylon; 6 ft (1.8 m); spring guard one end Order the labels directly from Graco, free of 156–591 ELBOW, 90 ; 3/4 npt x 1–1/2 – 24 ns 1 charge. - Page 26 Notes...
- Page 27 Notes...
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Page 28: Technical Data
Graco distributor to the original purchaser for use. As purchaser’s sole remedy for breach of this warranty, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the Ultra equipment proven...