Instructions-Parts

Integrated Air

Integrated air controls for use with NXT?? Model 2200, 3400, and 6500 Air Motors. For professional use only.

100 psi (0.69 MPa, 6.9 bar) Maximum Regulated Working Pressure

NXT011, Series E

With locking air regulator and 110 psi (0.76 MPa, 7.6 bar) relief valve

NXT021, Series E

With non-locking air regulator and 110 psi (0.76 MPa, 7.6 bar) relief valve

NXT031, Series E

With locking air regulator and 85 psi (0.58 MPa, 5.8 bar) relief valve

Important Safety Instructions

Read all warnings and instructions in this manual and in NXT air motor manual 311238. Save these instructions.

Integrated Air Control Module shown mounted on an NXT Air Motor

TI8233c

Related Manuals

Contents

Related Manuals

Manuals are available at www.graco.com.

This manual is available in the following languages:

Warnings

Warnings

The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama- tion point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. Refer back to these Warnings. Additional, product-specific warnings may be found throughout the body of this manual where applicable.

WARNING

PRESSURIZED EQUIPMENT HAZARD

Fluid from the gun/dispense valve, leaks, or ruptured components can splash in the eyes or on skin and cause serious injury.

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

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

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

PERSONAL PROTECTIVE EQUIPMENT

You must wear appropriate protective equipment when operating, servicing, or when in the operating area of the equipment to help protect you from serious injury, including eye injury, inhalation of toxic fumes, burns, and hearing loss. This equipment includes but is not limited to:

???Protective eyewear

???Clothing and respirator as recommended by the fluid and solvent manufacturer

???Gloves

???Hearing protection

EQUIPMENT MISUSE HAZARD

Misuse can cause death or serious injury.

???Do not operate the unit when fatigued or under the influence 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 fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all equipment manuals. Read fluid and solvent manufacturer???s warnings. For complete information about your material, request MSDS forms from distributor or retailer.

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

???Do not alter or modify equipment.

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

???Route hoses and cables away from traffic 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.

Installation

Installation

Air Control Modules NXT011 and NXT031 (locking air regulator) and NXT021 (non-locking air regula-

tor) are available.

1.Install supplied o-ring (43) into counterbore on upper side of air control module (D). Fasten module to air motor (M) with two supplied screws (44). Start threading screws by hand before using a tool. Torque to 20 ft-lb (27.1 N???m).

1Screws are thread-forming. Start threading by hand before using a tool. Torque to 20 ft-lb (27.1 N???m).

3. Turn air regulator knob (C) fully counterclockwise.

C

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4.Hold the 3/4 npt(f) air inlet fitting (A) with a 1-5/16 in. wrench to prevent it from turning while securely con- necting the air supply hose.

MA

44 1

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2. Close bleed-type master air valve (B).

B

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Operation

Component Identification

Air Control Modules NXT011 and NXT031 (locking air regulator) and NXT021 (non-locking air regula-

tor) include air line components in an integrated assembly. See FIG. 1.

Operation

Key for FIG. 1

AAir Inlet, 3/4 npt(f)

BBleed-type Master Air Valve

CAir Regulator Adjustment Knob (locking or non-locking)

DAir Pressure Gauge

EAir Filter (partially hidden)

FSafety Relief Valve

Bleed-type Master Air Valve (B)

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

The bleed-type master air valve is required in your sys- tem to relieve air trapped between it and the air motor when the valve is closed.

Air Regulator (C)

Adjusts air pressure to the motor and fluid outlet pres- sure of pump. View the gauge (D) to read air pressure.

Air Filter (E)

Removes harmful contaminants from entering the air control module and air motor.

Safety Relief Valve (F)

Automatically opens to relieve air pressure, to prevent pump overpressurization.

C

FIG. 1: Air Control Module Mounted on NXT Air Motor

Operation

Startup

1. Turn air regulator knob (C) fully counterclockwise.

C

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A small amount of air venting through knob assembly (18) is

normal.

2. Open bleed-type master air valve (B).

3.Turn air regulator knob (C) clockwise until air pres- sure reaches desired setpoint.

C

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Locking Regulator (NXT011 and NXT031 only)

1. To lock pressure setpoint, push knob (C) in.

C

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2.Pull knob out to unlock, then adjust regulator to desired pressure setpoint.

C

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Shutdown

Close bleed-type master air valve (B).

B

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Troubleshooting

Repair

Pressure Relief Procedure

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

1. Close bleed-type master air valve (B).

B

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2.Make sure gauge (D) reads zero (0). If not, pull on pressure relief ring to bleed off air pressure.

D

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3. Turn air regulator knob (C) fully counterclockwise.

C

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Repair

Replace Filter Element

1.Relieve pressure, page 9.

2.Remove filter bowl (E) with wrench. Remove filter element (G).

3.Install new filter element (G) on boss within the bowl

(E). Reinstall bowl 1/4 turn past handtight.

G

E

TI8237b

Replace Gauge

1.Relieve pressure, page 9.

2.See Parts drawing, page 12. Using a 7/16 open-end wrench on the flats, unscrew old gauge (31).

3.Apply PTFE tape to threads before installing new gauge.

Repair

Spool Repair Kit NXT098

1.Relieve pressure, page 9.

2.See Parts drawing, page 12. Using a 1/4 in. drive ratchet or a 3/8 in. deep well socket, remove 2 screws (37). Use a 3/8 in. open-end wrench to remove the third screw (37) and disassemble front cover (5) from housings (1, 2). Remove spring (16).

3.Pull the spool assembly (8) out of the housing (1). Use a pliers to carefully pull the spool assembly out by the tip.

4.Clean and lubricate the bore in the housing (1).

5.Install the new spool (8), spring (16), and o-ring (38).

Regulator Repair Kit NXT095

1.Relieve pressure, page 9.

2.See Parts drawing, page 12. Using a 1-3/8 in. open-end wrench, unscrew the regulator housing (19).

3.Remove adjustment screw (17a), spring (17b), slip ring (17c), diaphragm (17d), and washer (48).

4.Using #2 Phillips screwdriver, remove valve seat (17e) slowly to avoid damaging flutes. Remove valve assembly (17f) and spring (17g).

5.Use all new parts in the kit. Reinstall the spring (17g), valve assembly (17f), washer (48), and valve seat (17e). Tighten seat slowly to avoid damaging flutes.

6.Do not apply any lubricant on the seating area of the diaphragm (17d). Reinstall diaphragm, slip ring (17c), spring (17b), and adjustment screw (17a).

Quick Exhaust Repair Kit

NXT099

1.Relieve pressure, page 9.

2.See Parts drawing, page 12. Using a 3/8 in. deep well socket, remove 2 screws (37). Use a 3/8 in. open-end wrench to remove the third screw (37) and disassemble front cover (5) from housings (1, 2). Remove spring (16).

3.Remove seat (20a) with large flat blade screwdriver. Work out the poppet (20b) from the hole beneath the poppet using an o-ring pick or an allen wrench.

4.Liberally grease housing threads to avoid damaging o-ring (20c) on new poppet (20b). Install new poppet with o-ring. Install new seat (20a) until it bottoms out tight in the housing.

Ball Valve Seal Repair Kit

NXT097

1.Relieve pressure, page 9.

2.See Parts drawing, page 12. Remove the inlet fitting (32a) using a 1 5/16 in. wrench.

3.See FIG. 2. Move the handle to the 7:30 position. Remove the outboard seal (32b) with an o-ring pick.

4.See FIG. 2. Move the handle to the 6:00 position. Remove the ball (32c) using adhesive tape. Remove the inboard seal (32d) with an o-ring pick.

Use notes on page 12 as a guide while completing step 5.

5.Install the new inboard seal (32d). Install the new ball (32c) with the notch (N) facing the front of the module, so it engages the valve stem (33). The flat spot on the ball must face inward.

Repair

6.Install the new outboard seal (32b) and inlet fitting (32a). Torque to 500 in-lb (56 N???m).

The stem seal components (32e-32k) do not need replacement unless leakage is noted. If necessary,

replace parts as shown on page 12.

9:00

7:30

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6:00 FIG. 2. Valve Handle Positions

Parts

Parts

NXT011 and NXT031 Locking Integrated Air Control Module

NXT021 Non-Locking Integrated Air Control Module

17f???

8 8

16

38

5

31

18

43

44 6

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17f???

48???

6

17d???

17c???

18 3

1Torque to 140 in-lb (16 N???m).

2Torque to 500 in-lb (56 N???m).

3Torque to 240 in-lb (27 N???m).

4Torque to 130 in-lb (15 N???m).

5Install bowl 1/4 turn past handtight.

6Screws are thread-forming. Start threading by hand before using a tool. Torque to 20 ft-lb (27.1 N???m).

7Apply blue thread lock sealant.

8Apply lithium grease.

*Parts included in Seal Repair Kit NXT096 (purchase separately).

???Recommended spare parts. Keep on hand to avoid downtime.

???Parts included in Air Regulator Repair Kit NXT095 (purchase separately.)

Accessories

Accessories

Schematic Diagram

Schematic Diagram

Bleed-Type Ball Valve

Air Filter

AIR IN

Quick Air Purge

ATMOSPHERE

TO MOTOR

Air Pressure

Gauge

Spool

Overpressure Safety

Relief Valve

Pilot Valve

Pilot Vent

Diaphragm

Atmosphere

Air Regulator

Adjustment Knob

Supply Pressure

Regulated Pressure

Pilot Pressure

Technical Data

Technical Data

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 verification of the claimed defect. 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.

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 profits, 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.

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 reflects 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 311239

Graco Headquarters: Minneapolis

International Offices: Belgium, China, Japan, Korea

GRACO INC. AND SUBSIDIARIES ??? P.O. BOX 1441 ??? MINNEAPOLIS MN 55440-1441 ??? USA

Copyright 2006, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.

www.graco.com

Revised 07/2011