Graco 231-576 Instructions-Parts List Manual
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Graco 231-576 Instructions-Parts List Manual

5.5 horsepower, gasoline–powered airless paint sprayer
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INSTRUCTIONS-PARTS LIST
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
INSTRUCTIONS
5.5 HORSEPOWER, GASOLINE–POWERED
GM5000
3000 psi (207 bar, 21 MPa) Maximum Working Pressure
Upright Cart Sprayer
Model 231–576
Basic sprayer without hose or gun.
Model 231–052
Complete sprayer with hose and Contractor gun,
RAC IV
DripLess
Tip Guard,
and 517 size SwitchTip
Lo-Boy Cart Sprayer
Model 231–577
Basic sprayer without hose or gun.
Model 231–085
Complete sprayer with hose and Contractor gun,
RAC IV
DripLess
Tip Guard,
and a 517 size SwitchTip
CAUTION
Use a minimum hose length of 100 ft (30.4 m)
1/4 in. ID or 50 ft (15.2 m) 3/8 in. ID. Undersized
hose may result in poor equipment performance and
damage to the clutch or pressure control.
GRACO INC. P.O. BOX 1441
Airless Paint Sprayer
MINNEAPOLIS, MN 55440–1441
Graco Inc. is registered to I.S. EN ISO 9001
308–708
Rev. D
Supercedes Rev. A
& unreleased Rev. B & C
06879A
Model 231–052 Shown

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  • Page 1 1/4 in. ID or 50 ft (15.2 m) 3/8 in. ID. Undersized hose may result in poor equipment performance and damage to the clutch or pressure control. 06879A Model 231–052 Shown GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441 Graco Inc. is registered to I.S. EN ISO 9001...

  • Page 2: Table Of Contents

    Do not use hoses to pull equipment. Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose Graco hoses to temperatures above 82 C (180 F) or below –40 C (–40 F). Do not lift pressurized equipment.

  • 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. Fluid injected into the skin may look like just a cut, but it is a serious injury.
  • Page 4 WARNING FIRE AND EXPLOSION HAZARD Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and re- sult 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 spray- ing immediately.

  • Page 5: Component Identification And Function

    Component Identification and Function 202 Main hose 203 Whip end hose 06881A 204 Contractor gun with RAC IV Model 231–052 shown DripLess tip guard and 517 size SwitchT ip Fig. 1 Pressure Control Switch ON/OFF, enables/disables clutch function Pressure Adjusting Knob Controls fluid outlet pressure Air Cleaner* Filters air entering the carburetor...

  • Page 6: Setup

    WARNING 3. Fill packing nut/wetcup. Fill the packing nut/wet- cup (Y) 1/3 full with Graco Throat Seal Liquid If you are supplying your own hoses and spray (TSL), supplied. See Fig. 2. gun, be sure the hoses are electrically conductive, that the gun has a tip guard, and that each part is 4.
  • Page 7 Setup 5. Be sure your system is properly grounded c. Strain the paint through a fine nylon mesh bag before operating it. Read and follow the warning (available at most paint dealers) to remove the section, FIRE OR EXPLOSION HAZARD, on page particles that could clog the filter or spray tip.

  • Page 8: Fueling

    Fueling 2. Gasolines containing alcohol (gasohol). Do not WARNING use gasohol which contains methanol, if the gaso- hol does not contain cosolvents and corrosion Gasoline is extremely flammable and explosive inhibitors for methanol. Even if it does contain such under certain conditions. additives, do not use the gasohol if it contains Always turn the engine switch (K) to off before more than 5% methanol.
  • Page 9 Startup WARNING WARNING A rope which recoils too quickly may hit someone To reduce the risk of serious injury from fluid injec- and cause serious injury. The rope could also jam tion, NEVER operate the spray gun with the tip in recoil assembly.

  • Page 10: Maintenance

    Maintenance WARNING CAUTION INJECTION HAZARD For detailed engine maintenance and specifications, To reduce the risk of serious injury, refer to the separate engine manual, supplied. whenever you are instructed to relieve pressure, follow the Pressure Relief Procedure on page 10. DAILY: Check the engine oil level and fill as neces- WARNING sary.

  • Page 11: Flushing

    Flushing When to Flush How to Flush 1. New Sprayer. This sprayer was factory tested in lightweight oil,which was left in to protect the pump WARNING parts. Before using water–base paint, flush with mineral INJECTION HAZARD spirits, followed by a soapy water flush, and then a To reduce the risk of serious injury, clean water flush.

  • Page 12: Suction Tube Storage

    Flushing 6. Follow Startup on page 8. Keep the gun trig- 10. Unscrew the filter bowl and reinstall the clean gered until clean solvent comes from the nozzle. screen. Reinstall the bowl, hand tight only. Release the trigger and lock the gun trigger safety. 11.

  • Page 13: Troubleshooting

    Have the pressure control checked by an au- thorized Graco dealer. The clutch is worn, damaged, or incorrectly Replace the clutch. See page 20. positioned.
  • Page 14 PROBLEM CAUSE SOLUTION The pump output is low on The inlet screen (31) is clogged. Clean the screen. the upstroke the upstroke. The piston ball (25) is not seating. Service the piston ball. See manual 307–806. The piston packings are worn or damaged. Replace the packings.

  • Page 15: Bearing Housing & Connecting Rod

    Bearing Housing & Connecting Rod 11. Assemble the connecting rod (22) and bearing WARNING housing (21). INJECTION HAZARD 12. Clean the mating surfaces of the bearing and drive To reduce the risk of serious injury, housings. whenever you are instructed to relieve pressure, follow the Pressure Relief 13.

  • Page 16: Drive Housing

    Drive Housing WARNING CAUTION INJECTION HAZARD DO NOT drop the gear cluster (18) when removing To reduce the risk of serious injury, the drive housing (20). The gear cluster is easily whenever you are instructed to relieve damaged. The gear may stay locked in the drive pressure, follow the Pressure Relief housing or pinion housing.
  • Page 17 Drive Housing Fig. 7 0170C...

  • Page 18: Pinion, Clutch, Clamp, Field, & Engine

    Pinion, Clutch, Clamp, Field, & Engine If starting from the pinion housing , first follow Steps Disassembling these parts can start from the pinion 3 to 5 of DRIVE HOUSING, on page 16, and then housing, or from the clutch if no pinion service is needed.

  • Page 19: Pinion Housing

    Pinion Housing Press pinion assembly in here Lubricate exterior Lubricate inner and outer diameters Back of pinion housing (19a) Lubricate teeth **Included in Repair Kit 221–032 CUTAWAY VIEW OF PINION HOUSING (19a) 19m** 19j** 19h** 19g** 19f** 0041 Fig. 9 0169 Repairing the Pinion If purchasing parts separately, use these instructions.

  • Page 20: Clutch

    Clutch 4. Tap lightly on the back of the bearing housing (21) WARNING with a plastic mallet to loosen the assembly (D) from the clutch housing. Pull the assembly away. INJECTION HAZARD To reduce the risk of serious injury, 5. The armature (4a) was removed with the pinion whenever you are instructed to relieve housing.

  • Page 21: Field & Wiring Harness

    Field & Wiring Harness NOTE: Refer to Fig. 12. 1. Loosen the four setscrews (12) holding the field (6) to the clutch housing (2). 2. Pull off the field. 3. Pull the plastic caps (B) off the wire screws (17) in both places on the field.

  • Page 22: Clutch Housing

    Clutch Housing NOTE: Refer to Fig. 14. 1. Remove the four capscrews (8) and lockwashers (9) which hold the clutch housing (2) to the engine. 2. Remove the capscrew (15) from beneath the mounting plate (D). 3. Remove the engine key (13). 4.

  • Page 23: Engine

    Engine 1. Remove the Pinion Housing, Clutch, Field and Wiring Harness, Clamp and Clutch Housing, as instructed on pages 18 and 20 through 22. 2. See Fig. 15 and16. Disconnect the red wire (D) from the engine lead (B). Disconnect the black and white wires from the field.

  • Page 24: Reassembly

    Reassembly 1. Install the clutch housing (2) , capscrews (8) and The face of the housing lockwashers (9) on the engine. See Fig. 17. 1.99 ±.01 in. (50.55 ±.25 mm) Torque the screws (8) to 200 ±10 in-lb (23 ±1.1 N m) Torque to 125 ±.10 in-lb (14 ±1.1 N m) 2.
  • Page 25 Reassembly 6. Be sure the face of the rotor (4b) and the field are free of all oil and contaminants. Remove any burrs 7. Be sure the face of the armature (4a) is clean. on the outside edge of the rotor. Install the rotor, Assemble the armature to the shaft in the pinion lockwashers (11) and capscrews (16).

  • Page 26: Pressure Control Replacement

    Pressure Control Replacement WARNING To the pump. To the filter. INJECTION HAZARD To reduce the risk of serious injury, whenever you are instructed to relieve pressure, follow the Pressure Relief Procedure on page 10. 1. Relieve pressure. 2. Disconnect both hoses at the pressure control while holding the fitting or elbow (A) firmly.

  • Page 27: Displacement Pump

    Displacement Pump Repairing the pump. WARNING See manual 307–806 for displacement pump repair. INJECTION HAZARD To reduce the risk of serious injury, whenever you are instructed to relieve Installing the pump. (See Fig. 23.) pressure, follow the Pressure Relief Procedure on page 10. 1.
  • Page 28 Parts Drawing – Upright Cart Sprayer Model 231–576 DETAIL Ref 36 Label See the detail. See page 34 for the parts. See manual 307–806 for the parts. See page 35 for the parts. Ref 19 Ref 35 73, 94 16 11 Ref 55 41 44 06868...
  • Page 29 Parts List – Upright Cart Sprayer Model 231–576 Part No. Description Part No. Description 108–802 ENGINE 187–604 SLEEVE 183–397 CLUTCH HOUSING 179–811 WHEEL, semi–pneumatic 183–517 CLAMP, mounting, rotor 101–242 RING, retaining 236–568 CLUTCH ASSEMBLY 104–811 HUBCAP includes items 4a and 4b 154–636 WASHER, 5/8 in.
  • Page 30 Parts Drawing – Lo-Boy Sprayer Model 231–577 DETAIL Ref 36 Ref 35 Label See the detail, above. See page 32 for the parts. See page 35 for the parts. 42 43 06869A...
  • Page 31 Parts List – Lo–Boy Sprayer Part No. Description Qty* Part No. Description Qty* 108–802 ENGINE 108–795 SCREW, mach, pan head, 183–397 CLUTCH HOUSING 10–32 x 5/16 in. 183–517 CLAMP, mounting, rotor 220–980 HARNESS, wiring 236–568 CLUTCH ASSEMBLY 239–055 CART FRAME includes items 4a and 4b 238–187 CART HANDLE &...
  • Page 32 Parts Drawing – Lo-Boy Sprayer Model 231–577 69, 76 06871 Ref. 19 Ref. 55 Label See page 34 for the parts. See page 39 for the parts. 06870A...

  • Page 33: Pinion Assembly

    176–450 GUARD, hose visibility. 185–381 HOSE, nylon 170–957 TUBE, suction Order the labels directly from Graco, free of 239–286 FLUID FILTER ASSEMBLY charge. Toll Free: 1–800–328–0211 See 307–273 for parts 239–267 DRAIN VALVE...
  • Page 34 Parts List & Drawing – Complete Sprayers Models 231–052 and 231–085 GM5000 Airless Paint Sprayer Includes items 201 to 204 Part No. Description 231–576 GM5000 Upright Sprayer See parts list on page 29 231–577 GM5000 Lo-Boy Sprayer See parts list on pages 31 and 33 238–361 HOSE, grounded, nylon;...

  • Page 35: Pressure Control

    Parts List – Pressure Control Basic Pressure Control for the GM5000 Sprayers Part No. Description Part No. Description 112–373 KNOB 239–056 ENGINE CONTROL BOARD 185–565 LABEL 107–251 SCREW, panhead, 10–24 x 1 in. 237–674 CONDUCTOR 112–610 SCREW, panhead, 10–24 x 2 in. 109–078 CONNECTOR 100–020...

  • Page 36: Technical Data

    Graco’s written recommendations. This warranty does not cover, and Graco shall not be liable for general wear and tear , or any malfunction, damage or wear caused by faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of non-Graco component parts.
  • Page 37 3.6 Kw – 4.9 Ps All written and visual data contained in this document reflects the latest product information available at the time of publication. Graco reserves the right to make changes at any time without notice. 17 September 98...

This manual is also suitable for:

231–052Gm5000231-577231-085

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