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
311762 Xtreme Lowers,
311825
334645 Xtreme XL Packages,
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
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.
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
???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
??? 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.
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
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
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
Reciprocating Signal Poppets
The poppets are identical to the ones used in the Graco Merkur?? motors and many
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:
???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
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
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
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.
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
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
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.
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
???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
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 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
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
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
5.Slide out the piston (102). Remove the
Reassemble the Air Valve
1.Lubricate detent cam (104) and install into housing.
2.The piston (102) and
3.Lubricate and install the detent assembly (103) into the piston, with the beveled center toward the detent cam.
4.Lubricate and install new
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
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
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.
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.
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
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
(4).
8.Use a ???at head screw driver to remove the retaining ring (11) from the bottom cover (1).
9.Remove the
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
2.Lubricate and install new
(1) from the bottom. The seal will snap into place.
Figure 7
3.Lubricate and install the new
4.Lubricate the inside of the cylinder (3). Lower the cylinder (3) onto the bottom cover (1).
5.Lubricate and install the
6.Slide the piston assembly (4) down into the cylinder (3). Be sure the
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
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
12.Install two gaskets (22) on the top and bottom caps with grease. Install the manifold (5). Torque bolts to
13.Reconnect the pilot valve air lines (55) to the air valve (13).
1Apply lithium grease.
2Torque to
3Press to snap ???t.
4Apply medium thread locker.
5Torque to 33+/- 3 ft
6Torque to 60 +/- 2
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.
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
Mounting Hole Diagram
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
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:
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
Revision A, April 2015