Graco 308161E TEXSPRAY SYSTEM Model E110C Owner's Manual

INSTRUCTIONS–PARTS LIST

This manual contains important warnings and information.

READ AND RETAIN FOR REFERENCE

TEXSPRAY

TM

SYSTEM

Model E110C

100 psi (7 bar) MAXIMUM AIR AND FLUID

WORKING PRESSURE

Part No. 231–182, Series E

With 3/4” ID fluid hose, 3/8” ID air hose and gun

Part No. 231–320, Series B

With 1” ID fluid hose, 3/8” ID air hose and gun

For use only with water–based simulated acoustic and water-based wall texture materials.

308–161

Rev. E

Supersedes D and PCN E

GRACO INC.

P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441

COPYRIGHT 1991, GRACO INC.

Table of Contents

Warning (English) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Avertissement (French) . . . . . . . . . . . . . . . . . . . . . . . .

2

3

Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Spray Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Shutdown and Cleanup . . . . . . . . . . . . . . . . . . . . . . . . 10

Pump Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Removing the Compressor . . . . . . . . . . . . . . . . . . . . . 14

Removing and Cleaning the Cooler . . . . . . . . . . . . . . 16

Compressor/Cooler Reassembly . . . . . . . . . . . . . . . . 17

Removing the Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Pump Repair – Air Valve . . . . . . . . . . . . . . . . . . . . . . .

Pump Repair – Ball Check Valves . . . . . . . . . . . . . . .

20

24

Pump Repair – Diaphragm

Parts – Gun

. . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

25

27

Parts – Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Parts – Air Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts – Texspray System . . . . . . . . . . . . . . . . . . . . . . .

30

31

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Manual Change Summary . . . . . . . . . . . . . . . . . . . . . . 39

The Graco Warranty and Disclaimers . . . . . . . . . . . . 40

Graco Phone Numbers . . . . . . . . . . . . . . . . . . . . . . . . . 40

WARNINGS

FOR PROFESSIONAL USE ONLY. OBSERVE ALL WARNINGS.

Read and understand all instruction manuals before operating equipment.

EQUIPMENT MISUSE HAZARD

NEVER alter or modify any part of this system; doing so may cause it to malfunction.

Pressure Relief Procedure

To reduce the risk of serious bodily injury, including electric shock and splashing fluid in the eyes, follow this procedure before checking, adjusting, cleaning, moving, or repairing any part of the system.

Do not operate the system with the side panels removed. Internal components get extremely hot.

CHECK all equipment regularly and repair or replace damaged parts immediately.

1.

Shut off the system.

2.

Trigger the gun.

3.

Open the gun air valve (handle parallel with valve body).

4.

Unplug the system.

Always wear appropriate clothing and equipment, such as eye protection and breathing apparatus, to protect yourself.

System Pressure

This system has a 100 psi (7 bar) Maximum Working

Pressure. Never exceed these pressures, or the maximum working pressure of the lowest rated component in your system.

General Safety

Any misuse of the equipment or accessories, such as overpressurizing, modifying parts, using incompatible chemicals and fluids, or using worn or damaged parts, can cause components to rupture and result in serious bodily injury, including eye injury, fire, explosion or property damage.

Fluid Compatibility

The system is for use only with water–based simulated acoustic and wall texture materials. See the Wetted

Parts on page 39.

FIRE OR EXPLOSION HAZARD

Static electricity is created by fluid flowing through the system. If the equipment is not properly grounded, sparking may occur, and the system may become hazardous. Sparks can ignite fumes, dust particles and other flammable substances and cause a fire or explosion, serious injury, and property damage.

Locate the system at least 20 ft (6.1 m) away from any explosive vapors to reduce the risk of a fire or explosion due to arcing parts.

Do not expose the system to rain. Always store the system indoors.

If you experience any static sparking STOP SPRAY-

ING IMMEDIATELY. Do not use the system again until the cause of the problem is identified and corrected.

Grounding

To reduce the risk of static sparking, ground the pump and all other equipment used or located in the pumping area. CHECK your local electrical code for detailed grounding instructions for your area and type of equipment. GROUND ALL OF THIS EQUIPMENT .

1.

Spray System: the pump is grounded to the cart.

Plug the power cord into a properly grounded, 110 volt, 15 amp outlet. Be sure the plug is undamaged.

2.

If the system is connected to a circuit protected by fuses, use a time delay fuse marked D.

IMPORTANT

United States Government safety standards have been adopted under the Occupational Safety and Health Act.

These standards – particularly the General Standards, Part 1910, and the Construction Standards, Part 1926 – should be consulted.

Avertissement

Réservé exclusivement à l’usage professionnel. Observer toutes les consignes de sécurité.

Bien lire et bien comprendre tous les manuels d’instructions avant d’utiliser le matériel.

RISQUES EN CAS DE MAUVAISE UTILISATION DU MATERIAL

Procedure de Decompression

Pour limiter les risques de blessures graves, y compris la protection de liquide dans les yeux, toujours suivre cet procédure avant de vérifier, regler, nettoyer, dèplacer ou réparer une partie quelconque du système.

NE JAMAIS alterer ou modifier une piece de cet appareil; ceci risquerait d’entraîner son mauvais fonctionnement.

Ne pas faire fonctionner le système quand les panneau latéraux sont enlevé. Les composants internes sont très chauds.

1.

Arrêter le système.

2.

Actionner la gâchette du pistolet.

3.

Ouvrir la vanne à boule du pistolet.

4.

Debrancher le cordón d’elimination.

Vérifiez régulièrement toutes les pièces du système et réparez ou remplacez les pièces usées ou abîmées immédiatement.

Porter toujours des vêtements et des équipements appropriés, tels que des lunettes de protection, ou un système respiratôire pour votre protection.

Consignes générales de sécurité

Toute utilisation anormale de l’appareil de pulvérisation ou des accessoires comme, par exemple, la mise sous une pression excessive, les modifications de pièces, l’utilisation de produits chimiques et de matières incompatibles et l’utilisation de pièces usées ou abîmées peut causer des dégâts à l’appareil ou des ruptures de pièces et entraîner une injection de liquide ou d‘autres blessures sérieuses, un incendie, une explosion ou d’autres dégâts.

Pression

Ce système a une presion maximum de fonctionnement de 7 bar. Ne jamais déparer cette presion, ni la presion maximum de fonctionnement du composant le plus faible du système.

Compatibilité chimique des produits

Cet système est conçue seulement pour utiliser des produits acqueux utilisés dans les revêtements muraux textures ou accoustiques. Voir les materiaux en contact avec le produit en page 39.

RISQUES D’INCENDIE OU D’EXPLOSION

De l’électricite statique est créée par l’écoulement du fluides dans la pompe et dans le tuyau. Si l’équipement n’est pas correctement mis à la terre, des étincelles peuvent se produire et le système peut devenir dangereux. Les étincelles peuvent enflammer des vapeurs des poussieres et autres substances inflammables et provoquer un incendie ou une explosion, des blessures graves et des dégâts importants.

Place toujours le système à au moins 6 metres de toute vapeur explosive pour éviter les risques d’inflammation dues aux étincelles.

Pour réduire le risque de décharge électrique, n’exposez pas à la pluie. Rangez le système à l‘intériuer.

S’il se produit des étincelles d’électricité statique, ou si vous ressentez la moindre décharge, ARRETEZ IM-

MEDIATEMENT LA PULVERISATION. Vérifiez que le système avant que le problème soit identifié et corrigé.

Mise à la terre ou à la masse

Pour reduire les risques d’étincelles dues á l’electricité statique, mettre à la terre la pompe et les autres équipements utilisés ou situés dans la zone d’utilisation. Vérifier le code électrique qui s’appliquent pour les détails de mise à la terre pour ce type d’équipement. Mettre à la terre tous les composants de cet équipement.

1.

Système de pulvérisation – la pompe est mis à la terre sur le chariot. Brancher la prise sur une prise 110 Volts, 15 ampères. Vèiller à ce que la prise soit en bon état.

2.

Si le système est branchée sur une circuit protégé par des fusibles, utiliser des fusibles à une action differée marques D.

4 308-161

Key

A

B

Air outlet

Fluid outlet

47 ON/OFF switch

83 Pump air regulator

–

Preparation

+

83

0834A

47

B

A

Fig. 1

Compressor Break-in

The first time you use the system, run the compressor under no load to break it in, improve performance and lengthen its life.

1.

Be sure the air hose is disconnected at A so there is no load on the compressor.

2.

Turn the air regulator (83) fully counterclockwise

(–) to the minimum setting so the pump won’t run.

3.

Turn on the switch (47). Run the system for 15 minutes. Shut off the switch.

Hose Size and Lengths

The system is supplied with a 3/4 in. x 50 ft. (19 mm x

15 m) fluid hose. An optional 1 in. x 50 ft. (25 mm x 15 m) fluid hose is available for spraying heavier material.

A gun adapter is required if connecting a 1 in. (25 mm) hose directly to the gun. See Accessories on page 39.

Do not use more than 100 ft. (30 m) of fluid hose. For multiple hoses, use a 1 in. dia. hose at the pump and a

3/4 in. (19 mm) dia. hose to the gun.

Setup the System

CAUTION

To avoid damage to the pump inlet, do not overtighten the fluid hose. Hold the pump outlet fitting (B) with a wrench when tightening the hose.

1.

Connect the hoses and gun as shown.

2.

Plug the power cord into a properly grounded, 120

Volt, 15 amp outlet.

3.

If possible, use more hose–up to 100 ft. (30 m) maximum–rather than an extension cord. If you do use an extension cord, be sure it has three 12 gauge minimum wires, an undamaged 3 prong plug and is no longer than 50 ft. (15 m). Do not use an adapter.

308-161 5

Operation Characteristics

1.

The system will not start unless the compressor air has been relieved!

Be sure the gun air valve (423) is open (handle parallel to valve body), which relieves compressor air, every time you shut off the system. See Fig. 2.

2.

Air bleeds from the gun nozzle whenever the gun air valve (423) is open. Close the valve to stop the air, if desired. Otherwise, it can stay open except during priming. See Fig. 2. See page 8 for more gun characteristics.

Key

423 Gun air valve

(shown open)

Startup

WARNING

The motor has a thermal overload switch which shuts down the motor if it overheats.

To reduce the risk of serious bodily injury due to the system restarting unexpectedly, always turn off the system at the ON/OFF switch (47) if the motor shuts down.

Always Wet the Hose Before

Pumping Texture Material!

Wet the inside of the hose before each use to flush out sediment and to prevent the texture material from packing out the hose.

NOTE: Refer to Fig. 3, page 7, for this procedure.

423

0631

Fig. 2

3.

A compressor pressure relief valve (79) is located behind the cart’s front panel. Air escapes from the valve, causing a popping sound, when air to the pump or the gun is at minimum pressure. The valve resets automatically when air to the pump or gun is increased at the regulator (83). See Fig. 3, page 7.

4.

The air regulator knob has two positions. Pull out the knob to adjust the pressure. Push in the knob to lock the adjustment in place.

1.

Fill the hopper with 3–6 gal. (11 to 23 liters) of clean water, depending on the hose length.

2.

Turn the air regulator (83) fully counterclockwise

(–) to minimum pressure.

3.

Close the gun air valve (423); the system primes easier if no air is supplied to the gun.

4.

Turn on the switch (47). Trigger the gun into the hopper. Turn the pump regulator (83) slowly to

40–50 psi (2.8 to 3.5 bar). Trigger the gun to circulate the water for a few minutes and wet the inside of the fluid hose.

5.

Trigger the gun into a pail to lower the water to the hopper strainer (16) level.

6.

Turn off the switch (47).

7.

Open the gun air valve (423) to relieve the compressor air.

Startup

Key

A Air hose outlet

16 Hopper strainer

17 Hopper

47 ON/OFF switch

79 Compressor pressure relief valve

(located behind panel)

83 Pump air regulator

423 Gun air valve

(shown open)

17

423

16

83

79

Fig. 3

Mix the Material

CAUTION

Use only simulated acoustic and wall texture materials in this system. Do not spray cementious materials, which will damage the pump.

Proper material mixture is essential. The pump won’t operate if the material is too thick.

Slowly add one 40 lb. (18 kg) of texture material to

5 gal. (19 liter) of clean water. Agitate to a smooth, lump-free consistency. Thin or thicken the material as needed before pouring it into the hopper.

Prime the System

1.

Fill the hopper (17) with the prepared texture material.

47

A

0834A

2.

Install a tip. Refer to the Tip Selection Chart on page 8.

3.

Open the gun air valve (423) to be sure air pressure is relieved and then close it again; the system primes easier if no air is supplied to the gun.

4.

Be sure there are no kinks in the hose, which restricts fluid flow.

5.

Turn on the switch (47). Trigger the gun into a pail.

Adjust the air regulator (83) to 40–60 psi

(2.8 to 4.2 bar). When texture material appears at the tip, move the gun to the hopper and circulate until there is a solid stream of texture material. Increase the pressure if a continuous stream is hard to obtain.

6.

See SPRAY TECHNIQUES on pages 8 and 9 for how to balance the pump and gun adjustments for a good spray pattern.

308-161 7

Spray Techniques

Tip Selection Chart

Application

Simulated

Acoustic

Fog

Orange Peel

Splatter Coat

Knockdown

Tip Orifice

3/16” (fine, or small confined areas)

1/4” (fine to medium)

5/16” (coarse)

3/16”

3/16” to 1/4”

1/4 to 5/16”

5/16”

Air Volume 1

Med. to High

High

Med. to High

Low to Med.

Low

1

Control air volume with the gun air flow valve.

2 For more material volume, try a larger orifice tip. Then, if more material volume is needed, increase the pump pressure.

Material Volume 2

40–60 psi (2.8–4.2 bar)

(fine to medium)

60–80 psi (4.2–5.6 bar) (coarse)

40–60 psi (2.8–4.2 bar)

40–60 psi (2.8–4.2 bar)

40–60 psi (2.8–4.2 bar)

60–80 psi (4.2–5.6 bar)

Before Adjusting the Gun and Pump . . .

Sufficient fluid output (volume and pressure) and good atomization requires testing to balance the compressor air to the gun and pump, and to select the right tip.

Keep in mind these important points when adjusting the gun and pump:

1.

Read all of pages 8 and 9 first.

2.

The compressor provides air to both the gun and the pump; the more air you supply to the gun, the less that is available for the pump.

3.

The gun’s air flow valve (424) regulates air flow to the gun.

4.

The pump’s fluid output is regulated by the regulator (83). The pump’s maximum operating pressure is 80–85 psi (5.6 to 5.9 bar) under load.

5.

Start the sprayer with the gun air flow valve at its minimum setting (fully –). Set the pump regulator at the desired pressure. Slowly increase the gun air flow until you get a good spray pattern.

NOTE: When the gun air flow valve is turned fully to

(+), the pump fluid output may be limited. To increase the fluid output, first reduce the air flow to the gun – turn the valve toward (–) until the air flow is noticeably less – and then increase the pump pressure if even more output is needed.

NOTE: An optional 1” dia. x 50 ft. (25 mm x 15 m) hose is available for spraying heavier material or for increased volume and pressure at the gun.

Adjusting the Spray Pattern

1.

Refer to the chart above. Consider the size of aggregate in the material and the coarseness of the spray pattern. Remember, the larger the tip, the heavier the pattern.

2.

Adjust the pump pressure at the regulator (83) until the material stream is about 8 in. (203 mm) long.

3.

Test the spray pattern on cardboard. Hold the gun

18–30 in. (457 to 762 mm) from the surface. Use this spraying distance for most applications.

4.

Adjust the pump regulator and the gun air flow valve (424) to achieve a uniform, round spray pattern.

5.

Overlap each stroke 50%.

CAUTION

Always run the pump at the lowest pressure needed. This maximizes the efficiency of the gun adjustments and prolongs the compressor life.

Spray Techniques

Spraying Small, Confined Areas How to Prevent Material Surge at the

Beginning of a Spray Pattern

Squeeze the trigger slowly to the fully triggered position while moving the gun quickly.

How the Gun Works

Adjust the material flow knob (418) so only 1 or 2 threads are visible. Fully open the air flow valve (424) by turning it as far as possible to +. See Fig. 4.

This is the standard adjustment for spraying texture materials.

For Continuous Spraying

Use the trigger bail (401) to hold the trigger open to reduce operator fatigue.

The valve and knob may be used to make fine adjustments without adjusting the pump when spraying smaller, confined areas, such as closets.

Material Flow Knob Adjustment

1.

For a lighter spray pattern, turn IN the knob (418).

2.

For a heavier spray pattern, turn OUT the knob

(418) so that no more than two threads are showing.

Spraying High Ceilings

To avoid wearing stilts or using scaffolding when spraying 9–12 ft. (2.7 to 3.6 m) ceilings, use a higher pump pressure and air volume (controlled at the gun) to project the material onto the ceiling.

Key

401 Trigger bail

418 Material flow knob

423 Gun air valve

(shown open)

424 Air flow valve 418

IN

CAUTION

Turning the knob (418) out too far will remove the knob and the gun will not shut off when the trigger is released.

Air Flow Valve Adjustment

1.

To decrease air flow turn the valve (424) toward –.

OUT

2.

To increase air flow, turn the valve (424) toward +.

Check Material Consistency Periodically

Check and thin the material as needed to maintain the proper consistency. The material may thicken as it sits and slow down production or affect the spray pattern.

424

401

423

0631

Fig. 4

308-161 9

Key

16 Hopper strainer

17 Hopper

47 ON/OFF switch

62 Small sponge filter

(located behind large filter)

67 Large sponge filter

83 Pump regulator

423 Gun air valve

(shown open)

Shutdown and Cleanup

423

17

16

83

62 (not visible)

67

Fig. 5

1.

Be sure the compressor pressure is relieved (gun air valve open). Close the valve again. Turn on the switch (47).

2.

Trigger the gun into a pail to lower the fluid to the hopper strainer (16) level.

3.

Fill the hopper with 3–6 gal. (11 to 23 liters) of clean water, depending on the hose length. Clean the inside of the hopper with a brush.

4.

Trigger the gun into a pail until most of the texture material is pumped out.

5.

Fill the hopper with clean water.

6.

Set the air regulator (83) to 50 psi (3.5 bar) for sufficient pressure to clean out material build up in the system. Spray half the water into a pail. Trigger the gun into the hopper to circulate the remaining water for several minutes.

7.

Trigger the gun into the pail to empty the hopper and the hose.

8.

Turn off the switch (47). Open the gun air valve

(423) to relieve compressor pressure.

9.

Pour 12 oz. (360 ml) of clean water into the hopper drain to KEEP THE PUMP WET DURING NON–

USE.

47

0835A

NOTE: In cold weather, try to store the system where it will not freeze. If it does freeze, thaw it thoroughly before using it.

10. Remove the two sponge filters (62,67), clean them thoroughly, and reinstall them.

11. Clean and dry the gun. Oil the gun daily with a few drops of SAE–10 light oil at the points indicated in Fig. 6.

1 Oil here

Fig. 6

1

1

1

1

0631

Pump Maintenance

WARNING

To reduce the risk of serious bodily injury, follow the

Pressure Relief Procedure on page 2.

Key

A Air inlet 1

Lubricate every 500 hours gallons pumped

NOTE: Slightly different pump shown

Daily checks

Before each use, check all hoses for wear or damage and replace as necessary. Be sure hose connections are tight and leak-free.

Pump lubrication

After every 500 hours of fluid pumped, remove the hose from the pump air inlet (A) and add two drops of machine oil or spray some WD–40 into the air inlet.

Refer to Fig. 7.

Fig. 7

A 1

Troubleshooting

WARNING

To reduce the risk of serious bodily injury, relieve pressure before checking or repairing any part of the system. See the Pressure Relief Procedure on page 2.

System Troubleshooting

PROBLEM

Spray pattern too coarse

Spray pattern is too fine or spray.

CAUSE

Material too thick

Not enough air volume

Material volume too high

Too much air volume at gun

Too little material volume

SOLUTION

Thin

Increase air volume at the gun.

1. Decrease fluid pressure;

2. Change to smaller nozzle.

3. Turn spray pattern knob in

Decrease air volume at gun

1. Change to a larger nozzle

2. Increase fluid pressure.

3. Turn spray pattern knob out.

Thicken

Increase Speed of application seems slow.

Material too thin

Pump pressure too low

Nozzle too small

Material too thick

Material surges when first triggering gun. (A slight surge is normal.)

Triggering too fast.

Use larger nozzle.

1. Thin material.

2. Use 1” dia. fluid hose and adapter.

Squeeze trigger slowly to fully open position while moving gun quickly. Also see Spray Techniques on pages 8 and

9.

Lower pump pressure.

Pump pressure is too high

Pump Troubleshooting

Check all possible problems and causes before disassembling the pump.

PROBLEM

Pump will not cycle, or cycles once and stops.

CAUSE

Air valve (215) is stuck or dirty.

SOLUTION

Turn reset screw (114).

Disassemble and clean air valve.

See pages 22, 23.

Worn or broken detent link (113).

Material is too thick.

Broken or damaged springs (109,

112) and/or valve cup (110) and plate (228).

Use filtered air.

Repair or replace.

Thin the material.

Repair or replace. See pages 22,

23.

Troubleshooting

PROBLEM

Pump cycles at stall or fails to hold pressure at stall.

CAUSE

Leaky check valves or o-rings (245).

SOLUTION

Repair or replace. See page 24.

Excessive air leakage from exhaust.

Worn check balls (233) or seat

(232).

Check ball (233) wedged in seat

(232).

Worn air valve cup (110) or plate

(228).

Worn shaft seals (239).




23.

Repair or replace. See pages 25,26.

Pump operates erratically.

Clogged suction line.

Check valve plug (205) is loose.

Sticky or leaking check valve balls

(233).

Inspect; clear.

Tighten. See page 24.

Clean or repair. See page 24.

Air bubbles in fluid.

Pump exhausts air near air valve.

Diaphragm (235) ruptured.

Suction line is loose.

Replace. See pages 25,26.

Tighten.

Diaphragm (235) ruptured.

Loose manifolds (202).

Manifold o-rings (208) are leaking.


Tighten manifold bolts (207). See pages 25–26.


Loose outer diaphragm plates (236).

Tighten. See pages 25,26.


Fluid in exhaust air.

Pump exhausts air at stall.

Diaphragm (235) ruptured or diaphragm plate (236) loose or cracked.

Worn air valve cup (110) or plate

(228).

Worn shaft seals (239).

Pump exhausts air from clamps.

Loose clamps (248).

Air valve screws (211) are loose.


23.

Repair or replace. See pages 25,26.

Tighten clamps. See Step 4, page

26.

Tighten screws. See page 20,21.

Pump leaks fluid from check valves.

Air valve o-ring (101) is damaged.

Worn or damaged o-rings (245).

Inspect; replace. See pages 22, 23.

Inspect; replace. See page 24.

Check valve plug (205) is loose.

Tighten. See page 24.

55

17

Removing the Compressor

34-B

34-B

26

34-A

34-B

34-B

Fig. 8

CAUTION

Be sure the compressor duct work is cool before removing it. If the sprayer was operated recently, it will be very hot and can cause burns!

NOTE: Clean the cooler whenever the compressor is serviced.

NOTE: A compressor rebuild kit, part no. 224–989, is available. The kit includes repair instructions. For repair assistance or for compressor service center locations, call

0837A

Required Tools

2 adjustable open-end wrenches

#2 Phillips screwdriver

3/8” socket wrench

Procedure

1.

Follow the Pressure Relief Procedure. See page

2.

2.

Disconnect the tube (55) from the hopper (17).

Continued on page 15.

14 308-161

Removing the Compressor

66

84

34-D

89

A

31

98

32

75

74

Fig. 9

3.

Remove one screw (34-A) from the top rear corner of each side panel.

4.

Lift out the hopper (17).

5.

Remove the screws (34-B) holding the rear panel

(26). Remove the rear panel.

NOTE: Fig. 9 is shown with the side panels removed for visual purposes only. Refer to it for Steps 6 to 11.

6.

Loosen the two motor mounting screws (75) and remove the two screws (74).

7.

Unplug the motor power cord (32) and remove the cord from the clip (98).

8.

Loosen or remove the screw (34-D).

9.

Disconnect the copper tube (89) at the cooler (A), using two wrenches.

10. Disconnect the air intake hose (84) at the air intake filter (66).

11. Grasp the motor (31) – not the duct work – and lift out the cooler/compressor assembly.

308-161 15

Removing and Cleaning the Cooler

1.

Remove the screws (34-A) and the air deflector

(49). Hold the compression fitting (18-A) and unscrew the fitting (18–B). See Detail A, below.

2.

Remove the two top screws (34-B) and the two lower screws (99). Remove the cooler assembly from the compressor.

4.

Clean the cooler (71) whenever the compressor is serviced to improve its efficiency. Spray water through the cooler to thoroughly clean it.

NOTE: When reassembling the sprayer, be sure both pads (73) are in place on the lower duct (23). See Detail B, below, which shows the compressor from the rear.

3.

Remove the remaining screws (34-C) and remove the upper duct (19).

Detail A 23

73

Detail B

0892

19

18-A 18-B

0839

34-B

34-C

71

73

Ref 18-A

Ref 18-B

23

99

34-A

49

0840

Fig. 10

Compressor/Cooler Reassembly

1.

Assemble all of the duct work on the compressor/ cooler.

2.

Push a pad (73) over the rear foot (A) of the motor

(31). Push the bracket (109) onto the rear foot (A).

See Detail B, below.

3.

Push the screw (75) through the foot pad (77).

Place the square nut (72) on top of the screw and hold it in place while engaging only two or three threads.

4.

Put the motor on the cart (B), aligning the screws

(75) with the holes and slots. Slide the motor forward. Be sure the lip (D) of the front duct work is mounted over the cart’s filter panel (70). See

Detail A, below. See Fig. 9, page 15, also.

5.

Thread the rear motor mounting screws (74) into the bracket (109) and tighten them.

6.

Tighten the screws (75) while holding down the nuts (72).

7.

Continue reassembling the sprayer in the reverse order of disassembly.

Detail B

Ref 72

Ref 77

Ref 31

Ref 109

Ref 75

A

Ref 73

Ref 74

0841

D

Detail A

Ref D

31

109

98

74

B

34

24

70

Fig. 11

0891

72

77

C

75

0854

308-161 17

Removing the Pump

NOTE: Refer to Fig. 13 except where noted.

1.

Follow the Pressure Relief Procedure. See page

2.

2.

Disconnect the air outlet hose at (A) and the fluid outlet hose at (B). See Fig. 12.

3.

Pull the pins (54) and remove the handle (2).

4.

Disconnect the hose (55) at the hopper.

5.

Disconnect the air hose (100) from the back of the air regulator.

6.

Disconnect the ground wire (61).

7.

Remove the pump mounting nuts (21).

8.

See pages 20–23 for pump repair.

100

Fig. 12

55

61

B

A

Fig. 13

2

21

54

0836A

Notes

308-161 19

Pump Repair – Air Valve

Replacing the Air Valve

NOTE: Air Valve Kit 224–820 is available. Parts included in the kit are marked with a symbol, for example (101

}

). A tube of general purpose grease (121

}

) is supplied in the kit. Install the kit as follows.

1.

Follow the Pressure Relief Procedure Warning on page 3.

2.

Unscrew the six mounting screws (211) and remove the air valve (215). See Fig. 14.

3.

Use an o-ring pick to remove the bearing (105 } ).

Remove the lower link bearing (225). See Fig. 15.

4.

Remove the two screws (253) holding the valve plate (228) to the pump. Use an o-ring pick to remove the valve plate and seal (227). Clean and inspect the parts. Replace any worn ones. See

Fig. 15.

5.

If the pilot pins (241) are accessible from the inside of the pump housing (203), pull them out. See Fig.

16. If not accessible, disassemble the fluid section as explained on pages 25–26.

NOTE: Inspect the pilot pin o-rings (242) and bearings

(243) in place. Removal will destroy the bearings and is not required unless they are damaged. To service the bearings, first perform steps 2–4 on page 25.

6.

Use a 1/8 in. EZY-OUT to remove the bearings

(243) from the housing (203). See Fig. 24 on page

26 for an illustration of how to use an EZY-OUT.

Remove the o-rings (242). Clean and inspect the parts. Replace any worn ones.

215

101 }

1

2

Torque oppositely and evenly to 20–25 in–lb (2.3–2.8 N.m).

Apply grease (121

{

).

GREASE APPLICATION

} 117

2

}

118

114

} 2

2

2

03412

Fig. 14

1 211

03411


NOTE: If the pilot pin o-rings (242) and bearings (243) were not removed, go to step 8.

1

Torque to 5–7 in–lb (0.6–0.8 N.m).

2

Apply grease (121

{

).

2 105 }

7.

Grease the o-rings (242) and install them in the bearings (243). Press the bearings and o-rings in place so the bearings are flush with the surface of the housing (203). See Fig. 16.

203

8.

Grease the pilot pins (241) and install them from the inside of the housing (203). See Fig. 16.

1 253

9.

Install the seal (227) in the pump housing (203).

Install the valve plate (228) and secure with the two screws (253). Torque the screws to 5–7 in–lb

(0.6–0.8 N.m). See Fig. 15.

228

10. Apply grease (121 } ) to the bearings (105 } and

225). Install the bearing (105 } ) in the pump housing (203). Reinstall the lower bearing (225). See

Fig. 15.

225

2

11. Make certain the o-ring (101

}

) is in place on the air valve (215).

12. Apply grease (121

}

) where shown in Fig. 14.

Fig. 15

1

2

Grease.

Press-fit flush with surface of housing (203).

227

13. Align the new air valve assembly so the reset screw (114 } ) is at the bottom. Check that the pilot pins (241) inside the pump housing (203) give clearance for the actuator link (117 } ). Install the six screws (211) and torque oppositely and evenly to 20–25 in–lb (2.3–2.8 N.m).

1

242 243

2

03417

CAUTION

If you are replacing the diaphragms (235), you

must reinstall the air valve before installing the diaphragms, as the diaphragms will force the pilot pins into the air valve area.

1 241

203

03424

Fig. 16


Disassembly

1.


2.

Remove the air valve (215) as explained on page

20.

3.

Remove the screw (119) and shift saddle (118).

See Fig. 17.

4.

Disassemble the link assembly, consisting of the actuator link (117), spacer (120), detent link (113), spring (112), stop (111), and valve cup (110).

5.

Remove the detent ball (107) and spring (109).

The detent collar (108) is a press-fit and should not need removal; if it does require replacement, you should also replace the cover (106).

6.

Remove the reset shaft (114), o-ring (115) and washer (116).

7.

Clean all parts and inspect for wear or damage.

Replace as needed. See Reassembly on page

23.

NOTE: ALL PARTS SHOWN ARE INCLUDED

IN AIR VALVE KIT 224–820.

106

108 101

109 107

110 113

120 117 112 111

115

116

114

118

119

03413

Fig. 17


Reassembly

1.

If the detent collar (108) was removed, install a new collar in a new cover (106). Using a rubber mallet, carefully press fit the detent collar (108) into the cover (106). See Fig. 18.

2.

Grease the detent spring (109) and place it in the collar (108). Grease the ball (107) and set it on the spring. See Fig. 18.

3.

Apply grease (121) to the o-ring (115) and install it in the hole in the air valve cover (106), as shown in

Fig. 18. Slide the washer (116) onto the blunt end of the reset screw (114). Insert the screw through the air valve cover (106) until it seats.

1

2

3

Apply grease (121).

Bumps face up.

Reset screw square must engage with square hole.

2

1

1

2

112

110

107

1

2

Apply grease (121).

Press fit.

114 1

1

107

1 109

116

115 1

Fig. 19

2 108

106

03414

Fig. 18

4.

Grease the spring (112). Place the link stop (111) inside the spring.

5.

Grease the detent link (113) and link spacer (120).

Assemble the detent link, link spacer, and actuator link (117) as shown in Fig. 19. The raised bumps on the links (113 and 117) must face up.

6.

Squeeze the spring (112) and install it and the stop

(111) in the link assembly. See Fig. 19. The spring tension will hold all these parts together. Grease the valve cup (110) and install it in the link assembly as shown.

7.

Install the link assembly onto the air valve cover

(106) so the pointed end of the reset screw (114) fits through the holes in the links and the square part of the reset screw engages the square hole in the detent link (113). Make certain the bumps on the detent link (113) engage the detent ball (107).

See Fig. 19.

8.

Grease the inside surfaces of the shift saddle (118) and install it as shown in Fig. 20. Hold the link assembly firmly in place and install the screw (119).

Torque to 8–14 in–lb (0.9–1.6 N.m). Install the oring (101) on the cover (106).

9.

Reinstall the air valve as explained on page 21.

1

2

Apply grease (121).

Torque to 8–14 in–lb

(0.9–1.6 N.m).

1 118

119 2

101

1 110

1 113

Fig. 20

111

106

106

117

120

113

1

1

3

03415

114 1

03416

Pump Repair – Ball Check Valves

NOTE: Repair Kit 224–970 is available. Kit parts are shown with a * after the Ref No. Use all the parts in the kit.

1.

Disassemble the top ball checks. Turn the pump over. Remove the plug (205), o-rings (245*), and spacer (231). See Fig. 21.

NOTE: For proper ball seating, replace the guides

(232 * ) when replacing the balls. Use new o-rings (245*) if the old ones are removed for any reason.

205

1 2

245 *

2.

Insert a 3/8” dia. x 8” dowel (A) through the top ball guide (232 * ). Press on the bottom ball stop (234 * ) to push out the ball guide (232 * ), ball (233 * ), and ball stop. See Fig. 22.

3.

Turn the pump over. Insert the dowel at an angle so it contacts the edge of the top ball guide (232 *) , and push out the guide. Remove the o-ring (245*).

202

231

234

*

233 *

4.

Clean all parts. Inspect parts and replace worn or damaged ones.

5.

Reassemble. Follow all notes in Fig. 21.

232 *

A

201

245

*

202

1

Torque to

5–10 ft–lb

(6.8–13.6 N.m)

2

When tightened fully, there will be a small gap between the hex of the plug (205) and the cover (201). DO NOT

OVERTIGHTEN.

Fig. 21

245

*

231

245 *

205

1 2

03418

Fig. 22

201

234

*

233

*

232

*

03419

Pump Repair – Diaphragm

Disassembly

NOTE: Repair Kit 221–089 is available. Kit parts have a

{

behind the Ref No. Use all the parts in the kit.

NOTE: In Step 5, use a 13/32 in. EZY-OUT (B) screw extractor to remove the bearings (238). Other removal methods may damage the pump housing (203).

NOTE: Inspect the pilot pin o-rings (242) and bearings

(243) in place. Removal will destroy the bearings and is not required unless they are damaged. To service the bearings, see step 6 on page 20.

1.


2.

Remove the screws (207) and nuts (206) holding the manifolds (202) to the covers (201). Remove the manifolds and o-rings (208). See Fig. 23.

3.

Remove the clamp nuts (210) and the grounding strip (244). See Fig. 23. Slip the clamps (248) over the housing (203). Pull the covers (201) off the pump, then remove the clamps from the housing. See Fig. 26.

4.

Unscrew one outer plate (236) from the diaphragm shaft (240). Remove one diaphragm (235) and inner diaphragm plate (237). Pull the opposite diaphragm assembly and the diaphragm shaft out of the pump housing (203). See Fig. 23. Clamp the shaft in a vise with soft jaws and unscrew the outer plate (236), then disassemble the remaining diaphragm assembly.

5.

Inspect the diaphragm shaft (240) for wear or scratches. If it is damaged, check the bearings

(238) also. Replace parts as needed. To remove the bearings, place a 13/32 EZY-OUT (B) in a vise

(C). Position the pump housing (203) over the

EZY-OUT (see Fig. 24). Turn the housing in the direction shown by the arrows to remove the bearing.

6.

Hook the shaft seals (239) with an o-ring pick and pull them out of the housing (203).

7.

Clean all parts and inspect for wear or damage.

Replace parts as needed.

1

Grease.

4

Torque to 50–60 in–lb (5.6–6.8 N.m).

2

Apply thread lubricant.

5

Torque to 20–25 in–lb (2.3–2.8 N.m)

3

Torque to 35–55 in–lb (3.9–6.2 N.m). Do not over-torque.

Detail A

202

201

248

208

{

208 {

203

207 5

2

244

03425 4

210 206

201

202

208

{

235 { 237 240 1

208

{

3

236

207

5

206

Fig. 23

Pump Repair – Diaphragm

Reassembly

CAUTION

If you have removed the air valve (215), you must reinstall it before reinstalling the diaphragms. See pages 20 and 21.

5.

Install the o-rings (208

{

) on the covers (201). Position the manifolds (202) as desired and secure with the screws (207) and nuts (206). Torque to

20–25 in–lb (2.3–2.8 N.m).

6.

Torque the clamp nuts (210) to 50–60 in–lb

(5.6–6.8 N.m).

1.

Grease the shaft seals (239

{

) and install them so the lips face out of the housing (203). Using a rubber mallet, carefully drive the bearings (238 { ) flush into the housing so the holes face out. See Fig. 24.

1

2

Lips face out of housing (203).

Holes face out of housing (203).

1

2

239

{

238

{

3

The words “AIR SIDE” on diaphragm (235) must face into the pump housing (203).

4

Flat side of plates (237) must face center of pump.

5 Torque to 35–55 in–lb (3.9–6.2 N.m). Do not over-torque.

6

Grease.

3 203

3

235

{

240

6

C

B

203

03423

Fig. 24

2.

Grease the diaphragm shaft (240) and slide it into the housing (203).

3.

Assemble the inner diaphragm plates (237), diaphragms (235 { ), and outer diaphragm plates

(236) exactly as shown in Fig. 25. Torque the outer diaphragm plates to 35–55 in–lb (3.9–6.2 N.m). Do

not over-torque. These parts must be assembled correctly.

CAUTION

Do not over-torque the outer diaphragm plates

(236). Doing so will damage the hex heads.

4.

When installing the covers (201), slip the clamps

(248) over the housing (203) before positioning the covers. See Fig. 26. Orient the covers to the housing as shown, then position the clamps over both parts. The clamp bolts should be on the air valve side of the housing, and pointing down toward the bottom of the pump. Install the grounding strip

(244) on the bolts. Apply thread lubricant to the bolts, then install the clamp nuts (210).

236

5

Fig. 25

7

Apply thread lubricant.

8

Torque to 50–60 in–lb

(5.6–6.8 N.m).

248

203

Fig. 26

237 4

201

210 8

7

0821

03431

Model 224–722, Series A

Includes items 401 to 424

412

Parts – Gun

413 ***

414

415

416

417

418

411

410 ***

408 ***

409 ***

407

406

405

419

420

421

422

401

423

Ref

No Part No.

Description

401 187–391 BAIL, trigger

403 111–550 TRIGGER

405 111–558 FITTING, fluid inlet

406 111–549 PACKING NUT

407 111–548 RETAINING NUT, nozzle

408 *** 111–547 5/16” TIP

409 ***

410 ***

111–546

111–545

1/4” TIP

3/16” TIP

411 187–397 WASHER, flat

412 111–544 GUN BODY

413 *** 224–714 NEEDLE

414 111–561 O–RING

415 111–551 SPRING

416 111–553 WASHER

417 154–594 O–RING

418 111–555 FLUID REGULATOR

419 111–559 RETAINING RING

424

403

Qty

1

1

2

1

1

1

2

1

1

1

1

1

1

1

1

1

1

0635

Ref

No Part No.

Description Qty

420 111–552 PIN

421 187–419 LABEL, identification

422 111–542 FITTING, air inlet

423 111–560 BALL VALVE

424 111–543 AIR RESTRICTOR VALVE

Repair Kit

Use only

GENUINE GRACO PARTS AND ACCESSORIES.

Keep a repair kit on hand to reduce down time.

Purchase kits separately.

Gun Repair Kit 224–718

Includes items marked with

***

behind the Ref No.

1

1

1

1

1

Parts – Pump

Model 236–818, Series A

Includes items 201 to 271

Ref

No Part No.

Description

201 185–605 COVER

202 185–603 MANIFOLD

203 189–531 HOUSING, pump

204 189–805 COVER, exhaust

205 185–619 PLUG

206 108–947 NUT, hex, no. 10–24

207 108–630 SCREW, hex washer hd;

10–24 x 5/8”

208 { 109–197 O-RING

210 112–499 NUT, hex; 1/4–28

211 112–545 SCREW

215 224–820 VALVE, air

See parts list on page 30

225 189–530 BEARING, link, lower

227 187–719 SEAL, plate, valve; buna-N

228 187–720 PLATE, valve; stainless steel

231 n 187–647 SPACER

232

*

187–449 GUIDE, ball

233* 108–944 BALL, 3/4 in. dia.

234* 186–692 STOP, ball

235 { 187–313 DIAPHRAGM

236 n 186–242 PLATE, diaphragm, outer

237 186–265 PLATE, diaphragm, inner

238

{

183–019 BEARING

239 { 108–641 PACKING, u-cup

240 186–759 ROD, diaphragm

241 188–849 PIN, pilot

242 157–628 O-RING

243 188–850 BEARING, pin

244 187–821 STRIP, grounding

Qty

1

4

16

2

2

1

2

1

2

2

4

2

4

4

2

2

1

2

2

1

1

1

1

4

16

4

2

8

Ref.

No.

Part No.

Description Qty.

245 * 110–782 O-RING

248 189–540 CLAMP

253 111–631 SCREW, pan hd, thread-forming;

4–20 size; 0.375 in. (9.5 mm) long

258 Y 189–220 LABEL, warning

267 187–632 ADAPTER

268 101–959 ELBOW

269 100–264 SCREW, machine, pan hd;

10–24 x 5/16”

270 100–718 LOCKWASHER; no. 10

271 100–179 NUT, hex; 10–24

8

2

1

2

1

1

1

2

1

Y

Replacement Danger and W arning labels, tags and cards are available at no cost.

n Keep these spare parts on hand to reduce down time.

Repair Kits

Keep a repair kit on hand to reduce down time.

Purchase kits separately.

{ These parts are also included in Diaphragm Repair

Kit 221–089, which may be purchased separately .

* These parts are also included in Ball Check Repair

Kit 224–970, which may be purchased separately .

201

Y

258

206

*234

*233

*232

*245

231

*245

205

205

*245

231

*234

*233

*232

*245

206

267 202

208 {

Parts – Pump

208 {

} Part of Air Valve Kit 224–820. See page 30.

211 215 } 225

253

228

227

105

}

248

207

241

243

242

236

208

{

235 {

237

239 {

238

{

240

203

208 {

268

204 211

Detail of Grounding Strip

201

202

207

271

270

270

269

244

210

03425

Parts – Air Valve

Part No. 224–820, Series A

Air Valve Assembly

Ref Part

No.

No.

Description Qty

101 111–624 O-RING; buna-N

105 187–726 BEARING, link; acetal;

106 187–706 see page 29

COVER, valve; polypropylene

1

107 111–629 BALL, detent; tungsten carbide 1

108 187–730 COLLAR, detent; stainless steel 1

1

1

109 187–728 SPRING, compression; stainless steel

110 187–725 CUP, valve; acetal

111 187–853 STOP, link; acetal

112 187–722 SPRING, compression; stainless steel 1

1

1

1

Ref Part

No.

No.

Description Qty

113 187–723 LINK, detent; stainless steel

114 187–727 SHAFT, reset; stainless steel

115 111–625 O-RING; buna-N 1

116 111–750 WASHER, plain; stainless steel 1

1

1

117 187–724 LINK, actuator; stainless steel

118 187–718 SADDLE, shift; acetal

119 111–630 SCREW, pan hd, thread-forming;

10–14 size; 0.75 in. (19 mm) long 1

120 188–175 SPACER, link; acetal

121 111–920 GREASE, general purpose;

1

1

1

0.375 oz (10.5 g); (not shown) 1

106

108 101

109 107

110 113

120 117 112 111

115

116

114

118

119

03413

Parts – Texspray System

Model 231–182, Series E

with 3/4” fluid hose, 3/8” air hose, and gun

Includes items 1–117

Model 231–320, Series B

Includes items 1–10, 12–118 with 1” fluid hose, 3/8” air hose, and gun

Ref

No Part No.

Description

46

47

48

49

53

54

55

56

57

41

42

43

44

45

37

38

39

40

1

2

3

4

5

6

7 Y

8

224–722

187–382

187–451

187–452

TEXTURE SPRAY GUN

HANDLE

DESIGNATION LABEL

187–643 IDENTIFICATION LABEL, front

187–641 IDENTIFICATION LABEL, right

187–642 IDENTIFICATION LABEL, left

DANGER LABEL

9

10

11

11a

11b

224–987 POWER CORD, 14 awg

224–726 DIAPHRAGM PUMP

187–632 NIPPLE, special

224–981 HOSE SET Model 231–182 only

Includes items 11a, 1 1b

224–978 .AIR HOSE, 3 /

8

” ID x 50’ (15 m)

224–979 .FLUID HOSE, 3/4” ID x 50’(15 m)

176–762 NUT, 1-1/2”–18

17

18

19

20

12

14

15

16

21

22

23

156–593 O–RING

187–398 OUTLET FITTING

111–505 COVER STRAINER

187–414 HOPPER

111–563 ELBOW, 90 _ compression

187–416 UPPER DUCT

100–333 CAPSCREW, 1/4–20 x 1/2”

102–040 LOCKNUT, 1/4–20

103–473 WIRE TIE STRAP

187–415 LOWER DUCT

24 111–499 SELF-RETAINING NUT

25 Y 187–453 CAUTION LABEL

26 224–975 REAR PANEL

29 187–606 TERMINAL COVER PLATE

30

31

111–593

236–526

GROUNDING SCREW

AIR COMPRESSOR, 3.5 HP

32

33

Series A

224–778 POWER CORD, motor

224–790 POWER CORD, unit

34 110–037 SCREW, no.10–24 x 1/2”

35 Y 186–620 GROUND SYMBOL LABEL

36 100–718 LOCKWASHER, no. 10

154–636

101–242

111–481

224–777

107–436

111–591

WASHER, 0.630” ID

RETAINING RING, external

WHEEL

GROUND CONDUCTOR

TERMINAL STRIP

187–393 SIDE PANEL, right

187–434 FOAM SPACER

224–986 COMPRESSOR FAN

FAN WASHER

111–962 CAPSCREW, button head

109–574 TOGGLE SWITCH

235–959 BLOWER DUCT

187–601 AIR DEFLECTOR

104–514 STRAIN RELIEF BUSHING

111–576 HITCH PIN CLIP

187–433 INLET HOSE

109–059 RUBBER PAD

100–644 CAPSCREW, sch, 1/4–20 x 3/4”

Qty

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

4

1

2

12

1

1

34

1

1

1

1

1

1

1

1

1

1

2

1

2

4

1

1

1

1

1

3

4

2

2

1

44

2

1

1

Ref

No Part No.

Description

65

66

67

68

69

58

59

60

61

62

63

64

70

71

72

73

74

75

77

78

79

80

81

82

83

84

85

86

96

97

98

99

100

101

102

103

108

109

110

111

114

91

92

93

94

95

87

88

89

90

111–570 CARRIAGE BOLT, 1/4–20 x 3/4”

100–527 WASHER

100–179 NUT, no. 10–24

224–792 GROUND CONDUCTOR

111–587 FILTER, air compressor

187–385 FRONT PANEL

187–640 SCREEN, filter

111–589 RETAINING RING

187–444 FILTER DUCT

111–494 FILTER, air cooling

187–384 SIDE PANEL, left

187–445 HOSE BARB

235–455 FILTER PANEL

187–480 AIR COOLER

187–463 NUT, special

111–583

111–597

VIBRATION PAD, motor

SCREW, hex washer head,

1/4–20 x 1/2”

224–974 MOTOR MOUNTING SCREW

111–585 VIBRATION PAD, compressor

111–598 AIR PRESSURE GAUGE,

1 /

8

npt, 0–160 psi(0–11 bar)

103–347 SAFETY RELIEF VALVE,

1/4–18 npt, 100 psi(6.9 bar) relief pressure

111–566 ELBOW, 90 _ compression

162–453 NIPPLE, 1/4 npsm x 1/4 npt

110–209 AIR REGULATOR NUT

110–318 AIR REGULATOR

See manual 308–167 for parts

187–644 HOSE, air intake

103–927 HOSE CLAMP, 1-1/4” max.

107–439 SCREW, hex washer head,

10–32 x 3/4

102–920 LOCKNUT, no. 10–32

187–639 CAUTION LABEL

187–430 AIR TUBE, 17” (432 mm)

111–573 SLEEVE

111–572 COMPRESSION NUT

187–637 COPPER TUBE

111–565 COMPRESSION UNION

187–431 AIR TUBE, u–shaped

111–562 NIPPLE, 1/4 npt

111–567

111–594

111–595

CROSS PIPE, 1/4 npt

TIE HOLDER

WIRE CLIP

111–596 SCREW, pnh, no.10–24 x 1/4”

187–432 AIR TUBE, 14” (356 mm)

187–446 FILTER DUCT

224–721 CART

224–779 ELECTRICAL CONDUCTOR

100–139 PIPE PLUG, headless,

187–439 MOUNTING BRACKET

1 /

8”

100–705 SCREW, pnh, 6–32 x 5 /

8”

103–837 SCREW, flh, 8–32 x

3

/

8”

101–959 COMPRESSION ELBOW

115

117

118

187–797 FOAM SPACER

187–908

Z

INFORMATION LABEL

224–799 HOSE SET Model 231–320 only

Includes items 118a, 1 18b

118a 224–978 .AIR HOSE, 3 /

8

” ID x 50’ (15 m)

118b 224–980 .FLUID HOSE, 1” ID x 50’(15 m)

1

1

1

Y Replacement Danger and W arning labels, tags and cards are available at no cost.

1

2

2

2

1

2

1

1

1

1

1

1

1

1

1

1

2

1

1

1

1

1

1

2

1

1

1

1

1

1

2

2

1

1

1

1

Qty

2

1

1

1

2

1

1

2

3

1

1

1

4

4

1

1

34 308-161

308-161 35

ÎÎ

ÎÎ

Notes

308-161 37

Notes

Technical Data

Maximum Air and Fluid Working Pressure . . . . . . . . . . . . . . . . . . . . . 100 psi (6.9 bar)

Air Pressure Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . 25–100 psi (1.75–7 bar)

Compressor Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . AC brushless open motor, thermally protected, oilless; 110/230 Volt, 15/7.5 Amp

Compressor Air Consumption . . . . . . . . . . . . . . . . . . . . . . . . 11.9 displacement SCFM

8.5 scfm at 40 psi (0.238 m 3 /min at 2.8 bar)

6.8 scfm at 90 psi (0.19 m 3 /min at 6.3 bar)

Maximum Delivery with Texture Material . . . . . . . . . . . . . . . 1–1.5 gpm (3.8–5.7 lpm)

Hopper Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 gallons (60.8 liters)

Dimensions

Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40.5 in. (114 mm) with handle

Width

Height

28 in. (711 mm) without handle

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22.25 in. (565 mm)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 in. (686 mm)

Weight

System w/o hoses or gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 lb (54 kg)

System with hoses and gun

Gun

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

150 lb (67 kg)

35 oz (1000 gr)

Wetted Parts . . . . . . . . . . . . Acetal, Glass–Filled Acetal, Buna–N, Aluminum, Brass

Accessories

Use Only Genuine Graco Parts and Accessories

Must be purchased separately.

224–980 Fluid Hose,

1 in. ID x 50 ft. (25 mm ID x 15 m)

187–633 1 in. Gun Adapter

For use with 1 in. (25 mm) fluid hose

224–982 Air And Fluid Hose Set

Includes 1 in. (25 mm) ID fluid hose 224–980 and 3/8 in. (9.5 mm) ID air hose 224–978

Assembly

Changed

231–182

System to

Series E and

231–320

System to

Series B

Part

Status

Old

New

Old

New

Old

New

Manual Change Summary

Ref

No.

9

9

29

29

31

31

Part

No.

187–606

112–403

224–985

236–526

224–726

236–945

Name

Plate

Plate

Compressor

Compressor

Pump

Pump

The Old and New parts shown above are interchangeable.

This pump has been changed to make the changes shown in the chart. The diaphragm pump change has resulted in the following changes in the manual.

D

This manual includes Rev. D and E changes.

D

The pump no longer has a pump reset button or external muffler. References to these parts were removed on pages 6 and 7.

D

The pump troubleshooting chart on pages 12 and 13 are substantially changed.

D

The Repair Section for the Pump and Air Valve is all new (pages 20 to 26 in this revision). The air valve replaces the director valve and pilot valve.

D

The Parts Section for the Pump and Air Valve is all new (pages 28 to 30 in this revision).

D

All drawings shown the pump have been updated.

308-161 39

The Graco Warranty and Disclaimers

WARRANTY

Graco warrants all equipment manufactured by it and bearing its name to be free from defects in material and workmanship on the date of sale by an authorized 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 equipment proven defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written recommendations.

This warranty does not cover, and Graco shall not be liable for, 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. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility with Graco equipment of structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or maintenance of structures, accessories, equipment or materials not supplied by Graco.

This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of the claim. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will be made at a reasonable charge, which charges may include the costs of parts, labor and transportation.

DISCLAIMERS AND LIMITATIONS

The terms of this warranty constitute purchaser’s sole and exclusive remedy and are in lieu of any other warranties (express or implied), including warranty of merchantability or warranty of fitness for a particular purpose, and of any non–contractual liabilities, including product liabilities, based on negligence or strict liability. Every form of liability for direct, special or consequential damages or loss is expressly excluded and denied. In no case shall Graco’s liability exceed the amount of the purchase price.

Any action for breach of warranty must be brought within two (2) years of the date of sale.

EQUIPMENT NOT COVERED BY GRACO WARRANTY

Graco makes no warranty, and disclaims all implied warranties of merchantability and fitness for a particular purpose, with respect to accessories, equipment, materials, or components sold but not manufactured by Graco. These items sold, but not manufactured by Graco (such as electric motor, switches, hose, etc.) are subject to the warranty, if any, of their manufacturer.

Graco will provide purchaser with reasonable assistance in making any claim for breach of these warranties.

Graco Phone Numbers

TO PLACE AN ORDER, contact your Graco distributor, or call this number to identify the distributor closest to you:

1–800–367–4023 Toll Free

FOR TECHNICAL ASSIST ANCE, service repair information or assistance regarding the application of

Graco equipment:

1–800–543–0339 Toll Free

40

Sales Offices: Atlanta, Chicago, Dallas, Detroit, Los Angeles, Mt. Arlington (N.J.)

Foreign Offices: Canada; England; Korea; Switzerland; France; Germany; Hong Kong; Japan

GRACO INC.

P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441

PRINTED IN U.S.A.

308–161 10/91 Revised 5/94

308-161

3X8–161

Rev. L

Supercedes Rev. E and never released PCN K

Parts Change Notice

The Troubleshooting in Rev. E of manual 308–161 has changed but has not yet been changed in the instruction manual. Please note the changes below and keep this sheet with your manual.

Troubleshooting

WARNING

To reduce the risk of injury, follow the Pressure

Relief Procedure on page 3 of manual 308–161.

System Troubleshooting

PROBLEM

Compressor does not start

CAUSE

Trappped air pressure

SOLUTION

Relieve air pressure by connecting air hose and opening gun air valve.

Improper power supply Connect to proper power supply. A 115 Vac, 15A circuit is required.

Tripped thermal overload in motor Check extension cord. A maximum length of 25 feet of 12 gauge or 50 feet of 10 gauge is required. Allow unit to cool down and try again.

Note: Remove extension cord and plug unit directly into outlet. If unit operates correctly, this indicates an extension cord problem.

Clean filter. Allow unit to cool down and try again.

Have motor serviced.

10 Jul 96

Troubleshooting

PROBLEM

No material output from pump.

CAUSE

Not enough pressure to pump

Material too thick

Air valve is stalled.

122

Gun or nozzle plugged

SOLUTION

Shut off air at the gun and increase air pressure to the pump to maximum. Turn regulator clockwise to increase.

Check compressor with test kit 238–671.

Thin material. Material must be mixed thoroughly to a consistency that immediately folds back in as you draw your finger through the surface of the hopper.

1.

Reset the pump (See Fig.) a.

Open air to the gun.

b.

Turn the unit OFF.

c.

Move the reset handle (122) in the direction of least resistance (about 15 lb of force needed).

d.

If the reset handle can not be moved in either direction, the pump is plugged.

Flush the pump out.

e.

If the reset handle moved and the pump still does not pump, see Troubleshooting in Manual 308–399.

f.

Turn the unit ON. Trigger the gun into the hopper until there is a solid stream of texture material.

2.

If the pump continues to stall: a.

Thin the material. See above.

b.

Clean hose and gun. See below.

c.

Try a 1 in. hose. See below.

d.

See Troubleshooting in Manual

308–399.

Relieve pressure. Remove gun from material hose and cycle pump.

Note: A plugged gun or nozzle may cause the hose and pump to plug. If necessary flush hose and pump with clean water before cycling material through the hose with the gun removed.

Hose plugged or too small Relieve pressure. Flush hose and/or try a 1 in.

hose.

Leaky or damaged check valves Clean and inspect ball checks.

Note: Match pump part number with the correct pump breakdown in Manual 308–399. Not all texture pumps have the same assembly order.

Pump needs repair See Manual 308–399.

10 Jul 96

Troubleshooting

PROBLEM

Material pulses or surges

Speed of application to slow

CAUSE SOLUTION

Triggering too fast Squeeze trigger slowly to full open position while moving gun in a circular motion.



Not enough air pressure to pump Reduce air at the gun and increase air pressure to the pump to maximum. Turn regulator clockwise to increase.

Material too thick

Nozzle too small

Hose plugged or too small

Check compressor with test kit 238–671.


Increase nozzle size.

Relieve pressure; clean hose or try a 1 in. hose.

Pattern too fine or too much over spray.



Pump needs repair

Material too thin

Air pressure at gun is to high

Fluid delivery is too low

See Manual 308–399.

Thicken material. Material must be mixed thoroughly to a consistency that immediately folds back in as you draw your finger through the surface of the hopper.

Decrease air to gun at gun fitting.

Increase nozzle size.

Pattern too coarse Material too thick

Increase air pressure to pump and/or decrease air to gun at gun fitting.

Turn fluid knob out on gun. See spray technique on page 8 of manual 308–161.


Air pressure at gun is too low

Material delivery is too high

Increase air to gun at gun fitting.

Decrease nozzle size.

Decrease air pressure to pump and/or increase air to gun at gun fitting.

Turn fluid knob in on gun. See spray technique on page 8 of manual 308–161.

10 Jul 96

Model 231–182 wIth 3/4 in. I.D. fluid hose, 3/8 in. I.D. air hose, and gun

Model 231–320 with 1 in. I.D. fluid hose, 3/8 in. I.D. air hose, and gun

Technical Data

4Maximum Air/Fluid Working Pressure:100 psi (6.9 bar)

Air Pressure

Operating Range . . . . . . . . 25 to 100 psi (1.75 to 7 bar)

Compressor Specifications . . . . . . . AC brushless open

motor, thermally protected, oilless;

110/230 Volt, 15/7.5 Amp

Compressor

Air Consumption . . . . . . . . . . 11.9 displacement SCFM

8.5 scfm at 40 psi (0.238 m 3

6.8 scfm at 90 psi (0.19 m

3

/min at 2.8 bar)

/min at 6.3 bar)

Maximum Delivery with Texture Material

Hopper Capacity

. . . 1 to 1.5 gpm (3.8 to 5.7 lpm)

. . . . . . . . . . . . . 16 gallons (60.8 liters)

Spray Hose

Requirements . . . . 3/4 inch I.D. x 50 ft (15 m) minimum

Air Hose Requirements

Wetted Parts

. . . . . . . . . . . . . . . .

. . . . . . . . . . . . .

3/8 inch I.D.

acetal, glass-filled acetal, buna-N, aluminum, brass

Application

For use only with water-based simulated acoustic and water-based wall texture materials.

Dimensions

Height

Length

. . . . . . . . . . . . . . . . . . . . . . . . . . . 27 in. (686 mm)

. . . . . . . . . . . . . . . 40.5 in. (114 mm) with handle

28 in. (711 mm) without handle

Width

Weight

. . . . . . . . . . . . . . . . . . . . . . . . . . 22.25 in. (565 mm)

. . . . System with hoses and gun: 150 lb (67 kg)

System without hoses or gun:120 lb (54 kg)

Gun: 35 oz (1000 g)

Tip Selection Chart

3

4

5

1

2

Application

Simulated

Acoustic

Tip Orifice

3/16 inch 3

1/4 inch 4

5/16 inch 5

Fog 3/16 inch

Orange Peel 3/16 inch to 1/4 inch

Splatter Coat 1/4 to 5/16 inch

Knockdown 5/16 inch

Air Volume 1

Medium to High

Material Volume 2

40–60 psi 4

High

Medium to

High

Low to

Med.

Low

60–80 psi 5

40–60 psi

40–60 psi

40–60 psi

60–80 psi

Control air volume with gun air flow valve.

For more material volume, try a larger orifice tip. Then, if more material volume is needed, increase pump pressure.

Fine material, or small confined areas

Fine to medium material

Coarse material

GRACO INC.

P.O. BOX 1441

MINNEAPOLIS, MN 55440–1441

COPYRIGHT 1994, GRACO INC.

PRINTED IN U.S.A. 3Z8–161 August 1995

TO PLACE AN ORDER,

call 1–800–367–4023

FOR TECHNICAL ASSIST ANCE,

call 1–800–543–0339

Supplement to manual 308–161

TexSpray System

WARNING

INSTRUCTIONS

INJECTION HAZARD

This is only a quick reference to the features and frequently ordered parts of this sprayer. To reduce the risk of serious injury, including fluid injection, while operating or repairing this sprayer, follow the warnings and instructions in manual 308–161.

Model 231–182, Series D, with 3/4 in. I.D. fluid hose

Model 231–320, Series A, with 1 in. I.D. fluid hose

{

*

**

Ref

No. Part No.

Description

13

14

15

16

17

1 {

2 {

3 {

4

5 {

6

7 *

8

*

9

*

10 *

11

12

109–197 O-ring

108–641 U-Cup Packing

183–019 Bearing

186–265 Inner Diaphragm Plate

187–313 Diaphragm

187–712 Outer Diaphragm Plate

186–241 Ball Stop

108–944 Ball, 3/4 inch

187–449 Ball Guide

110–782

110–318

111–598

O-ring Packing

187–647 Spacer

224–015 Air Valve

187–382 Handle

Air Regulator

Air Pressure Gauge

103–347 Safety Relief Valve

111–587 Air Compressor Filter

25

26

27

28

29

18

19

111–494 Air Cooling Filter

187–644 Air Intake Hose

20 187–433 Inlet Hose

21 Y 187–452 Danger Label

22 187–480 Air Cooler (under cover)

23 236–526 Air Compressor (Series A)

24 224–778 Motor Power Cord

15

14

109–574 Toggle Switch

224–987 Unit Power Cord

224–726 Diaphragm Pump (includes items 1 to 12)

111–505 Cover Strainer (not shown)

187–414 Hopper (not shown)

13

Included in Diaphragm Kit D06–007

Included in Ball Check Kit 224–970

Included in Director Valve Kit 224–820

Y Extra danger labels are available for free.

10

11

7

8

9

10

7

8

9

10

11

10

12

1

6

5

4

3

2

16

17, 18

19

20

21

22

1

23

24

25

26

27

No results