Instructions-Parts

Xtreme?? XL Air Motor

334644A

EN

For use with high output reciprocating Graco pumps. For professional use only.

Important Safety Instructions:

Read all warnings and instructions in this manual and in related manuals. Save these instructions.

Model No. 24X856

100 psi (0.7 MPa, 7 bar) Maximum Working Pressure

PROVEN QUALITY. LEADING TECHNOLOGY.

Contents

Related Manuals

Manual Description

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334645 Xtreme XL Packages, Instructions-Parts

Warnings

Warnings

The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-speci???c risks. When these symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-speci???c hazard symbols and warnings not covered in this section may appear throughout the body of this manual where applicable.

WARNING

EQUIPMENT MISUSE HAZARD

Misuse can cause death or serious injury.

???Do not operate the unit when fatigued or under the in???uence of drugs or alcohol.

???Do not exceed the maximum working pressure or temperature rating of the lowest rated

system component. See Technical Data in all equipment manuals.

???Use ???uids and solvents that are compatible with equipment wetted parts. See Technical Data in all equipment manuals. Read ???uid and solvent manufacturer???s warnings. For complete information about your material, request MSDS from distributor or retailer.

???Do not leave the work area while equipment is energized or under pressure.

???Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use.

???Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manufacturer???s replacement parts only.

???Do not alter or modify equipment. Alterations or modi???cations may void agency approvals and create safety hazards.

???Make sure all equipment is rated and approved for the environment in which you are using it.

???Use equipment only for its intended purpose. Call your distributor for information.

???Route hoses and cables away from traf???c areas, sharp edges, moving parts, and hot surfaces.

???Do not kink or over bend hoses or use hoses to pull equipment.

???Keep children and animals away from work area.

???Comply with all applicable safety regulations.

MOVING PARTS HAZARD

Moving parts can pinch, cut or amputate ???ngers and other body parts.

???Keep clear of moving parts.

???Do not operate equipment with protective guards or covers removed.

??? Pressurized equipment can start without warning. Before checking, moving, or servicing equipment, follow the Pressure Relief Procedure and disconnect all power sources.

Warnings

WARNING

FIRE AND EXPLOSION HAZARD

Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. Paint or solvent ???owing through the equipment can cause static sparking. To help prevent ???re and explosion:

??? Use equipment only in well ventilated area.

??? Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop cloths (potential static sparking).

??? Ground all equipment in the work area. See Grounding instructions.

??? Never spray or ???ush solvent at high pressure.

??? Keep work area free of debris, including solvent, rags and gasoline.

???Do not plug or unplug power cords, or turn power or light switches on or off when ???ammable fumes are present.

???Use only grounded hoses.

???Hold gun ???rmly to side of grounded pail when triggering into pail. Do not use pail liners unless they are anti-static or conductive.

???Stop operation immediately if static sparking occurs or you feel a shock. Do not use equipment until you identify and correct the problem.

???Keep a working ???re extinguisher in the work area.

SKIN INJECTION HAZARD

High-pressure ???uid from gun, hose leaks, or ruptured components will pierce skin. This may look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.

??? Do not spray without tip guard and trigger guard installed.

??? Engage trigger lock when not spraying.

???Do not point gun at anyone or at any part of the body.

???Do not put your hand over the spray tip.

??? Do not stop or de???ect leaks with your hand, body, glove, or rag.

???Follow the Pressure Relief Procedure when you stop spraying and before cleaning, checking, or servicing equipment.

???Tighten all ???uid connections before operating the equipment.

??? Check hoses and couplings daily. Replace worn or damaged parts immediately.

Warnings

WARNING

PERSONAL PROTECTIVE EQUIPMENT

Wear appropriate protective equipment when in the work area to help prevent serious injury, including eye injury, hearing loss, inhalation of toxic fumes, and burns. Protective equipment includes but is not limited to:

???Protective eyewear, and hearing protection.

???Respirators, protective clothing, and gloves as recommended by the ???uid and solvent manufacturer.

Component Identi???cation

Component Identi???cation

Figure 1

Key:

A Directional Air Valve B Air inlet, 1 in npt (f) C Muf???er

D Pilot valve E Manifold

F Manual shuttle override button G Ground screw

H Static ground cable

J Plug for optional solenoid K Optional reed switch mount L External pilot lines

M De-ice bleed air valve

N Lift ring (800 lb (363 kg) maximum P Pump drive rod

General Information

The Xtreme XL air motor is air piloted with two poppet valves operating a cup and plate main air shuttle valve. Air exhausts around the cylinder, through sound absorption materials, and out the rear bottom of the shroud.

Application

This motor has 7% larger effective area, and is intended to directly replace, the Graco Premier?? motor. The XL will accept the same M16 x 2.0 threaded tie rods, the same connecting rods, and the same 3/8-16 mounting studs used with the Premier. The XL motor is physically smaller than the Premier, so it will ???t anywhere the Premier is used. The 1 in. air inlet is at a low front position instead of up on the top so a different air hose may be required. There are also threaded cart/shelf type mounting holes in the base which match the ones used on the NXT?? motors. The XL motor ???ts the standard heavy duty Xtreme cart so the larger Premier cart is no longer necessary.

Reciprocating Signal Poppets

The poppets are identical to the ones used in the Graco Merkur?? motors and many air-operated double diaphragm motors. Poppets are fully accessible and can easily be replaced.

External Pilot Lines

The pilot lines (L) that run from the shuttle end ports to the exhaust poppets are run externally in hydraulic hose. This allows for cold weather operation without running the air through the aluminum manifold, which can sometimes get cold enough for airline moisture to freeze and block the signals.

Manual Override Buttons

There are manual override buttons (F) on each end of the air valve that allows the internal main shuttle valve to be physically moved from one position to the other. Run the motor manually to:

General Information

???Move the valve off center due to ice or debris.

???Flush a pump if a poppet is plugged, stuck in the open position, or the signal is leaking

See Run Motor Manually, page 8 .

Low Pressure Operation

This motor will run at 4???5 psi (20.6???27.5 kPa, 0.21???0.27 bar)

Performance

The air valve (A), manifold (E), and exhaust are larger than the Premier air handling parts in order to exhaust the 630 in3 of compressed air from the cylinder after a full stroke. This allows the ???uid pressure to come back faster as the piston is driven from the other side. The near square pressure trace that this generates makes for a small change-over pulse, and full pressure output for running multiple guns.

Minimum Icing

The oversizing of all the air handling parts described in the General Information section mean that normal air motor ice buildup has less effect on the pump output.

Bleed Air

Use the de-ice bleed air valve (M) to run warm air through the valve and exhaust for de-icing. This is mainly helpful during warm weather, very high

humidity applications, or low pressure high cycle rate applications.

Extended Capabilities

The XL motor will accept DataTrak??? counting, a runaway stop solenoid, and the top mount linear position transducer used with NXT motors.

Grounding

The equipment must be grounded to reduce the risk of static sparking. Static sparking can cause fumes to ignite or explode. Grounding provides an escape wire for the electric current.

Verify that the ground screw (GS) is attached and tightened securely to the air motor. Connect the clamp (U) of the static ground cable (H) to a true earth ground.

Figure 2

Accessories

Bleed-type master air valve

Trapped air can cause the pump to cycle unexpectedly, which could result in serious injury from splashing or moving parts.

???Required in your system to relieve air trapped between it and the air motor when the valve is closed.

???Be sure the valve is easily accessible from the pump and located downstream from the air regulator.

Required in your system to adjust the air pressure to the motor and ???uid outlet pressure of pump. Locate it close to the motor. Install a gauge to read air pressure.

Air Filter

Required in your system to remove harmful dirt and moisture from compressed air supply. The minimum recommended air ???ltration is 40 micron.

Run Motor Manually

Use the manual override buttons (F) on each end of the air valve to physically move the internal main shuttle valve from one position to the other. Run the motor manually to:

???Move the valve off center due to ice or debris.

???Flush a pump if a poppet is plugged, stuck in the open position, or the signal is leaking

1.Lower the air pressure to approximately 30???40 psi (2.1 kPa, 210 bar ??? 280 kPa, 2.8 bar) to manually operation the buttons.

2.If a poppet is plugged:

a.Press the button on the end where the motor stopped. This will cause the motor to run another cycle.

b.Press the button again to ???nish ???ushing.

3.If a poppet is stuck in the open position or the signal is leaking:

a.Press the button on the opposite end from where the motor stopped and hold it in. This will cause the motor to stroke to the other end.

b.Release the button to allow the motor to stroke back.

Note

For poppet issues, the motor can also be manually operated by disconnecting the pilot hose and controlling the pilot signal exhaust with your ???nger.

Troubleshooting

Troubleshooting

Troubleshooting

Ice In Air Motor

When compressed air is exhausted, the sudden drop in pressure causes the air temperature to drop below the freezing point. This causes any water liquid or vapor to turn to ice.

Higher air pressures pack high amounts of air and water vapor in each cycle and create more expansion and ice. Higher cycle rates also build up the ice and lower the motor temperature faster. It is important to select the correct motor and pump size to run at a lower pressure, and cycle slower.

Warm humid climates can produce high levels of icing because of the higher humidity levels. Low ambient temperatures near freezing make it easier for the motor parts to drop below freezing.

To minimize ice build-up:

???Lower the dew point of the compressed air. Use a refrigerated air dyer, coalescing ???lter, or desiccant ???lter to lower the water vapor content of the air.

???Raise the compressed air temperature. Warmer air going in helps the motor parts stay above freezing. Compressed air, especially at these volumes, is warm when compressed. Keep the air warm or stay near the compressor to reduce icing.

???Use the bleed air to clear ice build up.

Repair

Preventive Maintenance Schedule

The operating conditions of your system determine how often maintenance is required. Establish a preventative maintenance schedule by recording when and what kind of maintenance is needed, and then determine a regular schedule for checking your system.

Pressure Relief Procedure

Follow the Pressure Relief Procedure whenever you see this symbol.

This equipment stays pressurized until pressure is manually relieved. To help prevent serious injury from pressurized ???uid, such as skin injection, splashing ???uid and moving parts, follow the Pressure Relief Procedure when you stop spraying and before cleaning, checking, or servicing equipment.

1.Engage trigger lock.

2.Close the bleed-type master air valve.

Repair

3.Disengage the trigger lock.

4.Hold a metal part of the gun ???rmly to a grounded metal pail. Trigger the gun to relieve pressure.

5.Engage the trigger lock.

6.Open all ???uid drain valves in the system, having a waste container ready to catch drainage. Leave drain valve(s) open until you are ready to spray again.

7.If you suspect the spray tip or hose is clogged or that pressure has not been fully relieved:

a.VERY SLOWLY loosen tip guard retaining nut or hose end coupling to relieve pressure gradually.

b.Loosen nut or coupling completely.

c.Clear hose or tip obstruction.

Repair

Repair Air Valve

Replace Complete Air Valve

Figure 3 Air Valve

1Bleed Hole

1.Stop the pump at the middle of its stroke. Follow Pressure Relief Procedure, page 11.

2.Disconnect the air line to the motor and the pilot valve lines to the air valve (13).

3.If installed on air motor, remove reed switch kit and solenoid from air valve (13).

4.Remove screws (23). Remove the air valve (13) and gasket (27).

5.To repair the air valve, go to Disassemble the Air Valve, page 12, step

1. To install a replacement air valve, continue with step 6.

6.Align the new air valve gasket (27) on the manifold, then attach the air valve (13).

Note

Use grease to hold the gasket (27) in place. Be sure the bleed air hole in the gasket aligns with the bleed port in the valve manifold.

7.Reattach the solenoid bracket and the solenoid.

8.Use screw to attach the reed switch assembly to the new air valve. Be sure the sensor cables are connected properly (see pump or package manual).

9.Reconnect the air line and pilot valve lines to the motor.

Replace Seals or Rebuild Air Valve

See Kits and Accessories, page 21 , to order kits for your pump.

Disassemble the Air Valve

1.Perform steps 1???5 from

Replace Complete Air Valve, page 12.

2.Use a 2 mm or 5/64 hex key to remove two screws (109). Remove the valve plate (105).

3.Remove the two-piece cup assembly (112, 113, 123), and spring (111).

Figure 4

4.Remove the snap ring (110) from each end. Use the piston (102) to push the end caps (107, 117) out of the ends. Remove end cap o-rings (106, 117).

5.Slide out the piston (102). Remove the u-cup seals (108) from each end and the detent assembly (103) and detent cam (104) from the center.

Repair

Figure 5 Air Valve Assembly

1 Apply high quality lithium grease.

Repair

Reassemble the Air Valve

1.Lubricate detent cam (104) and install into housing.

2.The piston (102) and u-cup seals (108) come pre-assembled. Lubricate the u-cup seals (108) on both ends of the piston (102) and install it in the housing.

3.Lubricate and install the detent assembly (103) into the piston, with the beveled center toward the detent cam.

4.Lubricate and install new o-ring (106) on bottom end cap (107). Lubricate and install new o-ring (119) and runaway reset button (118) on top end cap (117). Install the end caps (107, 117) into the housing.

5.Install a snap ring (110) on each end to hold end caps in place.

6.Install the spring (111).

7.Lubricate and install the cup o-ring (123) on the cup body (113), then assemble the cup body to the cup base (112c). Lubricate and install the cup assembly. Align the small round magnet with the air inlet.

8.Install the valve plate (105). Lightly tighten the screws (109) to hold it in place.

Replace Pilot Valves

1.Stop the pump at the middle of its stroke. Relieve the pressure. See Pressure Relief Procedure, page 11.

2.Disconnect the air line to the motor.

3.Use a 10 mm socket wrench to remove the old pilot valves (15) from the top and bottom covers.

4.Lubricate and install the new pilot valves (15). Torque to 95-105 in-lb (11-12 N???m).

Figure 6 Pilot Valves

Repair Air Motor

Air Motor Seal Kits are available. See

Kits and Accessories, page 21 for the correct kit for your motor. Parts included in the kit are marked with an asterisk (*). For best results, use all the parts in the kit.

Disconnect the Air Motor

1.Flush the pump, if possible (see package manual). Follow

Pressure Relief Procedure, page 11.

2.Disconnect the air and ???uid hoses and the ground wire

3.Hold the ???ats of the air motor piston rod with a wrench. Use another wrench to loosen the coupling nut (CN). Collect the coupling collars and set aside.

Repair

4.Hold the tie rods and remove the tie rod nuts (TN).

5.Use a socket to remove the mounting screws (MS).

6.Lift up on the air motor to remove it. The tie rods will remain attached.

Repair

Disassemble the Air Motor

1.Disconnect pilot valve air lines (55) from the air valve (13).

2.Remove four screws (24) and remove the manifold (5) and two gaskets (22). Inspect foam

(42)for damage.

3.Use a 15/16 in or 24 mm socket wrench to remove the tie bolts (25).

4.Remove the top cover. Remove the o-ring (14*).

Note

To break the cover loose, place a pipe or a long wrench handle through the lift ring (17) and hit the pipe.

5.Remove the muf???er (12) from around the cylinder. Remove the cylinder (3).

6.Slide the piston assembly (4) straight up off the bottom cover (1).

Note

The piston and rod are epoxied together and only available as an assembly (4). Do not attempt to take apart the piston and rod assembly (4).

7.Remove the o-ring (10*) from around the piston

(4).

8.Use a ???at head screw driver to remove the retaining ring (11) from the bottom cover (1).

9.Remove the u-cup seals (8*, 9*), and o-ring (14*) from the bottom cover (1).

Reassemble the Air Motor

Note

The bearing (7) is pressed in the bottom cover (1) and is only available with Bottom End Cap Repair kit 24X559.

1.Lubricate and install the o-ring (14*) on the bottom cover (1).

2.Lubricate and install new u-cup seal with ???ange (9*), with the lips facing up, in the bottom cover

(1) from the bottom. The seal will snap into place.

Figure 7 U-cups

3.Lubricate and install the new u-cup seal (8) over the top of the bearing with the lips facing up. Install retaining clip (11). Snap in the new bumper (19)

4.Lubricate the inside of the cylinder (3). Lower the cylinder (3) onto the bottom cover (1).

5.Lubricate and install the o-ring (10*) around the piston (4). It will ???t loose.

6.Slide the piston assembly (4) down into the cylinder (3). Be sure the o-ring (10*) stays in place. Work it carefully into the groove.

Repair

7.Install the muf???er (12) around the cylinder (3) and

in the groove on the bottom cover (1). Be sure the front opening is lined up with the ???at on the bottom cover (1).

8.Lubricate and install the o-ring (14*) on the top cover (2).

9.Carefully place the top cover (2) on the cylinder

(3) and muf???er (12). The ???at vertical manifold surfaces of the top and bottom covers must align. Be sure the muf???er (12) is in the groove on both the top and bottom covers.

10.Install the tie bolts (25) hand tight.

11.Tighten the tie bolts (25) halfway. Work in a crisscross pattern. Then torque to 60 ft-lb (81 N???m).

12.Install two gaskets (22) on the top and bottom caps with grease. Install the manifold (5). Torque bolts to 95-105 in-lb (10.7-11.9 N???m).

13.Reconnect the pilot valve air lines (55) to the air valve (13).

Parts

Parts

Part No. 24X856

1Apply lithium grease.

2Torque to 95-105 in-lb (11-12 N???m).

3Press to snap ???t.

4Apply medium thread locker.

5Torque to 33+/- 3 ft -lbs. (44.7 +/- 4 N???m).

6Torque to 60 +/- 2 ft-lbs. (81 +/- 2.7 N???m).

7Piston rod (6) must move through bearing (7) without force.

8Lips face up.

9Wiper faces down.

??? Replacement Warning labels, signs, tags, and cards are available at no cost.

??? See Kits and Accessories, page 21.

Parts

Air Valve Parts

Part No. 24X562

1 Apply high quality lithium grease.

??? See Kits and Accessories, page 21.

Kits and Accessories

Table 1 XL Air Motor Repair Kits

Parts

Table 2 Air Valve Repair Kits

Mounting Hole Diagram

Technical Speci???cations

Technical Speci???cations

Xtreme XL Air Motor

Notes

Notes

Graco Standard Warranty

Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective. 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 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. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with 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 veri???cation of the claimed defect. If the claimed defect is veri???ed, 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.

THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED,

INCLUDING BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS

FOR A PARTICULAR PURPOSE.

Graco???s sole obligation and buyer???s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy (including, but not limited to, incidental or consequential damages for lost pro???ts, lost sales, injury to person or property, or any other incidental or consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.

GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY

AND FITNESS FOR A PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, 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.

In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the negligence of Graco, or otherwise.

FOR GRACO CANADA CUSTOMERS

The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la r??daction du pr??sente document sera en Anglais, ainsi que tous documents, avis et proc??dures judiciaires ex??cut??s, donn??s ou intent??s, ?? la suite de ou en rapport, directement ou indirectement, avec les proc??dures concern??es.

Graco Information

For the latest information about Graco products, visit www.graco.com. For patent information, see www.graco.com/patents.

To place an order, contact your Graco Distributor or call to identify the nearest distributor. Phone: 612-623-6921 or Toll Free: 1-800-328-0211 Fax: 612-378-3505

All written and visual data contained in this document re???ects the latest product information available at the time of publication. Graco reserves the right to make changes at any time without notice.

Original Instructions. This manual contains English. MM 334644

Graco Headquarters: Minneapolis

International Of???ces: Belgium, China, Japan, Korea

GRACO INC. AND SUBSIDIARIES ??? P.O. BOX 1441 ??? MINNEAPOLIS MN 55440-1441 ??? USA Copyright 2015, Graco Inc. All Graco manufacturing locations are registered to ISO 9001. www.graco.com

Revision A, April 2015