Graco 3A0874D User Manual

Operation - Maintenance

Dispensit

3A0874D

1053-10C

Patented meter and dispense system for precise one-component micro-dispensing. Not for
use in explosive atmospheres.

2000 psi (14 MPa, 138 bar) Maximum Outlet Fluid Working Pressure
100 psi (0.7 MPa, 7 bar) Maximum Air Working Pressure
110°F (43°C) Maximum Ambient Temperature
300°F (149°C) Maximum Operating Temperature

Important Safety Instructions

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

EN





U

H

D

GREEN

R

R

USA

Dispensit

MODEL 1052-10A

SN XXXXXX

6.9 BAR MAX AIR

XX.X BAR MAX MAT'L

YELLOW

Valve shown is with controls/motor integrated

Related Manuals

Contents

Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Isocyanate Conditions . . . . . . . . . . . . . . . . . . . . . . 5

Material Self-ignition . . . . . . . . . . . . . . . . . . . . . . . 5

Moisture Sensitivity of Isocyanates . . . . . . . . . . . . 5

Changing Materials . . . . . . . . . . . . . . . . . . . . . . . . . 5

Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Cycle Detection Spool Sensors . . . . . . . . . . . . . . . 6

Component Identification . . . . . . . . . . . . . . . . . . . . 7

Typical System Configurations . . . . . . . . . . . . . . 7

Typical Feed System Components . . . . . . . . . . . 8

Typical Feed System Components (continued) . . 9

Metering Valve . . . . . . . . . . . . . . . . . . . . . . . . . 10

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Typical Installation . . . . . . . . . . . . . . . . . . . . . . . 11

Valve Mounting Diagram . . . . . . . . . . . . . . . . . . 12

Motor Mounting Diagram . . . . . . . . . . . . . . . . . . 13

Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Sequence of Operation . . . . . . . . . . . . . . . . . . . 15

Pressure Relief Procedure . . . . . . . . . . . . . . . . . . 16

Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Rebuild . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Model 1053-10C General Illustration . . . . . . . . 19

Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Motor and Motor Coupling Assembly . . . . . . . . 22

Motor and Motor Coupling Illustration . . . . . . . . 23

Electrical Requirements . . . . . . . . . . . . . . . . . . . . 24

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Motor Specifications . . . . . . . . . . . . . . . . . . . . . 25

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 26

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 26

Related Manuals

Component manuals in U.S. English.

Part Description

3A0261 1053/1093 Control Box

2 3A0874D

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 symbol refers to procedure-specific risk. Refer back
to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where
applicable.

WARNING

SKIN INJECTION HAZARD

High-pressure fluid 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 point gun at anyone or at any part of the body.

• Do not put your hand over the dispense outlet.

• Do not stop or deflect leaks with your hand, body, glove, or rag.

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

TOXIC FLUID OR FUMES HAZARD

Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or
swallowed.

• Read MSDS’s to know the specific hazards of the fluids you are using.

• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.

• Always wear impervious gloves when spraying or cleaning equipment.

• If this equipment is used with isocyanate material, see additional information on isocyanates in Iso­cyanate Conditions Section of this manual.

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

FIRE AND EXPLOSION HAZARD

Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent
fire 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 arc).

• 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 flammable fumes
are present.

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

• Use only grounded hoses.

• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment
until you identify and correct the problem.

• Keep a working fire extinguisher in the work area.

3A0874D 3

Warnings

WARNING

ELECTRIC SHOCK HAZARD

This equipment must be grounded. Improper grounding, setup, or usage of the system can cause elec­tric shock.

• Turn off and disconnect power cord before servicing equipment.

• Use only grounded electrical outlets.

• Use only 3-wire extension cords.

• Ensure ground prongs are intact on power and extension cords.

• Do not expose to rain. Store indoors.

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.

• Do not leave the work area while equipment is energized or under pressure. Turn off all equipment
and follow the Pressure Relief Procedure in this manual 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.

• Use equipment only for its intended purpose. Call your 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.

MOVING PARTS HAZARD

Moving parts can pinch or amputate fingers 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 in this manual. Disconnect power or air supply.

PLASTIC PARTS CLEANING SOLVENT HAZARD

Use only compatible water-based solvents to clean plastic structural or pressure-containing parts. Many
solvents can degrade plastic parts and cause them to fail, which could cause serious injury or property
damage. See Technica l Data in this and all other equipment instruction manuals. Read fluid and solvent
manufacturer’s warnings.

BURN HAZARD

Equipment surfaces and fluid that’s heated can become very hot during operation. To avoid severe
burns, do not touch hot fluid or equipment. Wait until equipment/fluid has cooled completely.

4 3A0874D

Isocyanate Conditions

Isocyanate Conditions

Spraying or dispensing materials containing isocya­nates creates potentially harmful mists, vapors, and
atomized particulates.

Read material manufacturer’s warnings and material
MSDS to know specific hazards and precautions
related to isocyanates.

Prevent inhalation of isocyanate mists, vapors, and
atomized particulates by providing sufficient ventila­tion in the work area. If sufficient ventilation is not
available, a supplied-air respirator is required for
everyone in the work area.

To prevent contact with isocyanates, appropriate per­sonal protective equipment, including chemically
impermeable gloves, boots, aprons, and goggles, is
also required for everyone in the work area.

Material Self-ignition

• Keep the ISO lube pump reservoir (if installed) filled
with Graco Throat Seal Liquid (TSL), Part 206995.
The lubricant creates a barrier between the ISO and
the atmosphere.

• Use moisture-proof hoses specifically designed for
ISO, such as those supplied with your system.

• Never use reclaimed solvents, which may contain
moisture. Always keep solvent containers closed
when not in use.

• Always lubricate threaded parts with ISO pump oil
or grease when reassembling.

Changing Materials

• When changing materials, flush the equipment mul­tiple times to ensure it is thoroughly clean.

• Always clean the fluid inlet strainers after flushing.

• Check with your material manufacturer for chemical
compatibility.

Some materials may become self-igniting if applied
too thickly. Read material manufacturer’s warnings
and material MSDS.

Moisture Sensitivity of Isocyanates

ISO will react with moisture (such as humidity) to form
small, hard, abrasive crystals, which become sus­pended in the fluid. Eventually a film will form on the sur­face and the ISO will begin to gel, increasing in viscosity.
If used, this partially cured ISO will reduce performance
and the life of all wetted parts.

NOTE: The amount of film formation and rate of crystal­lization varies depending on the blend of ISO, the
humidity, and the temperature.

To prevent exposing ISO to moisture:

• Always use a sealed container with a desiccant
dryer in the vent, or a nitrogen atmosphere. Never
store ISO in an open container.

3A0874D 5

Grounding

Grounding

This product must be grounded. In the event of an elec­trical short circuit, grounding reduces the risk of electric
shock by providing an escape wire for the electric cur­rent.

Metering valve: attach ground wire from grounding lug
to true earth ground. See Component Identification
starting on page 7.

Fluid hoses: use only electrically conductive hoses.

Feed system components: attach ground wire from

grounding lug to true earth ground. See feed system
manual for grounding points.

Fluid supply container: follow local code.

Solvent pails used when flushing: follow local code.

Use only conductive metal pails, placed on a grounded
surface. Do not place the pail on a nonconductive sur­face, such as paper or cardboard, which interrupts
grounding continuity.

Cycle Detection Spool Sensors

The spool sensors are magnetic reed switches and must
be connected to an electrical control. An LED on the
switch illuminates to indicate the shifting of the spool.

Overview

This single-component meter and dispense device
accurately meters liquid and semi-paste materials.

The machine is designed for application that require
very small and precisely dispensed beads and/or dots of
material at a wide range of material inlet pressures.

The ratio of the flow rate/stroke length to pump shaft
area provides the adjustable pressure intensification
needed to move the separate liquids through the needle
with a flow rate suitable for production requirements.

The complete system is enclosed. See Sequence of
Operation on page 15.

6 3A0874D

Component Identification

Typical System Configurations

Valve





U

H

D

Controls

CONTROL POWER

 

Component Identification



FIG. 1

GREEN

R

R

USA

Dispensit

MODEL 1052-10A
SN XXXXXX

6.9 BAR MAX AIR

XX.X BAR MAX MAT'L

YELLOW

System shown with optional controls

3A0874D 7

Component Identification

Typical Feed System Components

5 Gallon Pail Cover

with Diaphragm Pump

20 oz Cartridge Feed

with Mounting Post

1 Gallon Ram

and Pump

WARNING

DO NOT SERVICE WITHOUT
REMOVING AIR PRESSURE AND
WEARING SAFETY GLASSES.

0

psi

200

5 Gallon Pail Cover

with Diaphragm

Pump and Agitator

F

FIG. 2

5 Gallon Pail Cover

with 5:1 Transfer

Pump

5 Gallon Pail Cover

with Diaphragm

Pump

5 Gallon Ram and

11:1 Transfer Pump

8 3A0874D

Typical Feed System Components (continued)

Component Identification

R

5 Gallon Tank with Diaphragm Pump and Stand 5 Gallon Tank with 5:1 Pump and Stand

15

19

12

15

19

12

22

8

26

4

0

30

psi

22

8

26

4

0

30

psi

R

10 Gallon Tank with Diaphragm Pump, Agitator,

Vacuum, and Stand

10 Gallon Tank with 5:1 Pump, Agitator, Vacuum,

and Stand

FIG. 3

3A0874D 9

Component Identification

Metering Valve

M

L

NEMA-23

K

MOTOR

J

N

I

Q

O

P

G

S

GREEN

YELLOW

D

H

E

P

R

F

T

A

C

Key:

A Material Inlet
B Grounding Lug
C Spool
D Metering Rod
E Oil Cup Retaining

Block

F Dispense Air Inlet
G Reload Air Inlet
H Lower Sensor
I Upper Sensor
JDrive Nut
KDrive Screw

L Drive Coupling
M Motor
N Sensor Amplifiers
O Oil Cup
P Wet Cups
Q Drive Locking Screw

R Spool Sensor Close
S Spool Sensor Open
T Needle with Adapter

FIG. 4

10 3A0874D

Setup

Setup

NOTE: See Typical Installation diagram.

2.

1. Perform Setup procedure for feed system compo­nents. See feed system manual(s).

2. Place an in-line air pressure regulator, air-water
separator/filter, and shut-off/bleed valve between
the air supply and the control solenoids.

Typical Installation

Air Supply

Material Tank (optional)

3. Connect each 1/4 in. outside diameter supplied air
line to the corresponding control solenoid. See
Component Identification starting on page 7.

4. Connect chemical lines from feed system to meter­ing valve material inlets. See Component Identifi-

cation starting on page 7.

User Supplied

Air Shut-off and Bleed Valve

Air-Water Separator/Filter

Air Pressure Regulator

Control Solenoids

Pump

FIG. 5

3A0874D 11

Fluid Shut-Off Valve

Metering Valve

Setup

Valve Mounting Diagram

As desired, use the following diagram to mount the
metering valve.

NOTE: Valve shown is for controls/motor integrated.
For valve without controls/motor integrated, mount­ing pattern is the same just less LS-Home, solenoid
open/close and all the wires terminated at a plug.

1.700

Ø.201 THRU
2 PLACES

NEMA-23

MOTOR

F

11.101

0.813

IG. 6

1.630

0.688

MATERIAL OUTLET

Ø.201 THRU

4 PLACES

0.188

0.874
Ø.125X.75 DP

DOWEL HOLES

1.001

0.460

MATERIAL INLET

-8 JIC FITTING

GREEN

0.874

6.248

FRONT VIEWREAR VIEW SIDE VIEW

YELLOW

0.437

2.375

3.125

4.000

12 3A0874D

Motor Mounting Diagram

If using a non-Graco motor with the dispense valve, use
the following diagram to install the non-Graco motor
onto the valve. See Motor Specifications on page 25.

0.182

Setup

2.22

2.039

0.182
Ø 0.251

STANDARD

2.22

2.039
4X 10-32

3A0874D 13

Startup

Startup

1. Lubricate the metering rod port in the oil cup retain­ing block and fill the spool valve ports with compati­ble lubricant such as mesamoll or silicone oil.

Metering Rod Port (oil cup)

Spool Valve Ports (wet cups)

FIG. 7: Top View of Metering Valve with Top Section

2. Pressurize the feed systems connected to the

3. Dispense several full stroke shots until material is

NOTE: Very viscous, compressible materials may con­tinue to droll after system is primed. Reduce flow rate as
required to produce air-free dispense.

NOTE: Very thin materials may require tilting the valve
greater than 45 degrees and dispensing shots until
material is air-free. Remove oil from cups before pro­ceeding.

Removed

metering valve to prime the system. See Technical
Data on page 25 for maximum inlet feed pressure.

air-free and has good shut-off at the nose.

14 3A0874D

Operation

Operation

The operation of the 1053 metering valve is controlled
by an external source. If a Control Box was purchased,
see the Control Box manual for operation instructions.
See Related Manuals on page 2.

Sequence of Operation

Step 1: Reload

Step 2: Shift

• The balanced spool shifts to the dispense position

• Material path to the needle is opened

• Material feed inlet port is blocked

• Metering rod remains in the retracted position

Step 3: Dispense

• Spool shifts to the right

• Material feed inlet is opened

• Material is transferred into the metering chambers
by a pressurized feed system

• Outlet port is blocked

• Metering rod is retracted to a precise position deter­mining the volume of each material

• Metering rod extends

• Material is dispensed from the metering chamber
into the needle

Upon completion of the dispense stroke, the metering
rod and spool shifts back to the reload position.

3A0874D 15

Pressure Relief Procedure

Pressure Relief
Procedure

1. Retract the metering rods. See the Control Box
manual. See Related Manuals on page 2.

2. Close the fluid shut-off valve.

3. Remove needle.

4. Dispense 5 shots. Shots should be at least 75% of
the full stroke.

5. Extend the metering rod into the tubes. If Graco
controls are provided with the system, see the Con­trols manual. See Related Manuals on page 2.

6. Close the incoming air shut-off/bleed valve that sup­plies air to the metering valve.

7. Close the incoming air shut-off/bleed valve that sup­plies the feed system. Refer to feed system manual
for pressure relief procedure.

Shutdown

Maintenance

Perform the following procedures once a shift.

NOTE: If material is leaking, see Troubleshooting on
page 17.

Material Reservoirs

Check material levels and refill as necessary. Ensure
that the material reservoirs are properly vented.

Air Dryer

Check the condition of the desiccant air dryer. Replace
as necessary.

Metering Rod Port (oil cup)

Lubricate with compatible lubricant such as mesamoll or
silicone oil. See F

Spool Valve Port (wet cups)

Fill with compatible lubricant such as mesamoll or sili­cone oil. See F

IG. 7 on page 14.

IG. 7 on page 14.

1. Perform Pressure Relief Procedure.

2. Inspect the metering rod for material buildup. Clean
as necessary.

3. Lubricate the metering rod with compatible lubricant
such as mesamoll or silicone oil.

4. Remove needle adapter and replace with 10-32 set
screw.

16 3A0874D

Troubleshooting

Troubleshooting

Perform Pressure Relief Procedure before perform­ing any troubleshooting procedure.

Problem Cause Solution

Metering valve stalling and no mate­rial being dispensed despite ade­quate input pressure

Metering valve not discharging nor­mal or full volume

Material leaks past spool valve Spool valve worn or damaged Replace the spool valve

The 1053 valve will not cycle Cycle detection sensors not working Check connections or replace as

The 1053 valve cycles slowly Oil cup/wet cups are not supplied

The 1053 valve drools or leaks Air is trapped in the valve Prime the valve until air/free material

Spool will not actuate Low air pressure Increase air pressure to approxi-

Blocked needle Check needle for cured material,

replace as required

Low material level in reservoirs Fill material reservoirs and prime the

machine

Air in material tank Fill reservoir and prime machine

needed

Add lubrication. Note: Lubrication

with lubrication

Seals are worn Replace seals

Cured material on spool Check spool for cured material,

Seals are worn Replace seals

must be compatible with all seals.

is visible

mately 20-30 psi

replace as required

Schematics

For standard machines, the schematics will be
included in the Controls Parts manual. See Related
Manuals on page 2.

For custom machines, the schematics will be included

in the assembly drawings manual.

3A0874D 17

Rebuild

Rebuild

Before proceeding, remove material feed line and pump
material out of the valve. Shut power off from control
panel and disconnect main power. Disconnect the motor
wire harness from the system. Loosen the home and
spool sensor set screws. Note the position of the sen­sors and slide them out of the valve. Disconnect the air
lines.

Disassembly

Refer to the illustration below and the drawings in the
back of this manual for your exact model.

Disassembly Of 1053 Valve Section

1. Remove motor from Mounting Plate (23).

2. Remove mounting screws to remove valve from its
support.

3. On the right side of the valve, remove Valve End
Cap (25). The Valve Piston (24) will be inside the
end cap.

Note: If necessary, remove Valve Piston (24)
from Valve End Cap (25) by applying low air
pressure through valve to push out the Valve
Piston (24).

13. Remove Metering Rod (1) from Connection Block
(18).

NOTE: Only perform the steps below if the Motor
Coupling Section needs rebuilt.

Disassembly Of Motor Coupling Section

14. Loosen Screws (4) to disconnect Connection Block
(18) from Lead Screw (20).

15. Remove Mounting Plate (23) from Divorced Section
(6).

16. Remove Screws (33) from Divorced Section (6).

17. Remove Retaining Sleeve (21) from Divorced Sec­tion (6).

18. Remove Lead Screw (20) and Lead Screw Nut (19)
from Divorced Section (6).

4. Remove Seal Plate (14).

5. Repeat steps 3 and 4 with the left side of the valve.

6. Push the Spool (7) and (36) out with a finger. If it
does not slide out, tap it gently using a wood or
plastic dowel. A worn spool and sleeve assembly

must be replaced with a new (matched) assembly. If
you are rebuilding multiple valves be sure to keep
the spools and sleeves matched.

7. Remove Side Blocks (17) from Bottom Block (11)
and Divorced Section (6).

8. Remove Valve Body (3) from Bottom Block (11) by
removing Screws (31).

9. Remove Dispense Sleeve(27) from Valve Body (3).

10. Slide Bottom Block (11) away from Metering Rod (1)
and Guide Rods (32).

11. Remove Seal Cup (2) from Bottom Block (11).
Remove Posipak Seal (30) from Seal Cup (2).

12. Slide Guide Rods (32) out of Connection Block (18).

18 3A0874D

Model 1053-10C General Illustration

Rebuild

1

Metering Rod

2 Seal Cup 15 Screw (4) 25 Valve End Cap (2)
3

Valve Body

4 Screw (2) 17 Side Block (2) 27 Dispense Sleeve
5

Screw (8)

6 Top Block 19 Lead Screw Nut 29 O-Ring
7

Spool Rod

10 O-Ring (2) 21 Retaining Sleeve 31 Screw (2)
11

Bottom Block

13 Posipak Seal (4) 23 Mounting Plate 33 Screw (2)

3A0874D 19

14

Seal Plate (2)

16

Seal Retainer (2)

18

Connection Block

20

Lead Screw

22

Motor Coupling

24

Valve Piston (2)

26

Screw (8)

28

Screw (4)

30

Posipak Seal

32

Guide Rod (2)

34

Screw ('2)

Rebuild

Assembly

Before proceeding, remove any old o-rings or seals from
the valve and discard, clean the valve parts with an
appropriate solvent and replace o-rings and seals with
new parts from seal kit. Use Krytox 203GPL (part num­ber 84/0200-K3/11) for lubricating valve parts including
seals and o-rings.

Assembly Of 1053 Valve Section

Note: Check the Metering Rod (1), Dispense Sleeve

(27), and Spool Assembly (7) for wear and if they are
worn secure replacements before proceeding.

Note: Use caution as you install new U-cup and Posipak
seals so that they are not pinched or torn. Do this by
making sure they are lubricated
of the seal inward before uniformly pushing them into
position.

1. Lubricate spool outer diameter.

2. Insert spool (7) carefully into the valve body (3),
rocking it to ease it into place.

Install the Seal Plates on the Main Body

3. Install a lubricated o-ring (10) on the left side of the
Valve Body (3) next to the sleeve part of the
Spool (7).

, and by tucking the lips

8. Place lubricated O-ring (29) over the Dispense
Sleeve (27) and against the Valve Body (3).

9. Insert the Seal Cup (2) into the Bottom Block (11).

10. Slide a lubricated Posipak Seal (30) into the Seal
Cup (2) with the o-ring side facing down.

11. Lubricate the Metering Rod (1) and slide it carefully
through the Posipak Seal (30), Seal Cup (2) and
Bottom Block (11) so that it projects about 1/2”
through this assembly.

12. Using the projecting Metering Rod (1) to guide the
assembly into the Dispense Sleeve (27), slide the
Bottom Block (11) down against the Valve Body (3)
and secure with Screws (31).

13. Pull the Metering Rod (1) away from the Valve Body
(3) so that the end of it is only slightly in the Dis­pense Sleeve (27).

14. Slide the key slot in the Connection Block (18) over
the end of the Metering Rod (1).

15. Insert the Guide Rods (13) through the Connection
Block (18) and into the Bottom Block (11).

Note: If the Motor and Motor Coupling Assembly
had been disassembled, then reassemble per the
instructions below before proceeding with these
next steps.

4. Install two lubricated Posipak Seals (13) in the left
Seal Plate (14) so that the O-ring side of both Posi­paks will be facing the Valve Body (3). Be sure to
tuck the lip of the Posipak into its cavity to avoid
tearing it.

5. Position the left Seal Plate (14) with the oil cup
upwards and slide it over the Spool part of the
Spool (7) with the counterbore for the Seal Retainer
(16) facing out. Slide the Seal Retainer (16) over the
Spool and install two Screws (15).

6. Repeat steps 3, 4 and 5 for the right side Seal
Plates.

Install the Dispense Sleeve and Connect
the Motor & Motor Coupling Assembly

7. Lubricate the dispense sleeve bore in the Valve
Body (3). Insert the Dispense Sleeve (27) into the
Valve Body (3). Check for threads that may be in the
inside of the sleeve due to tapping during removal
and make sure these are at the top.

16. Position the Motor and Motor Coupling Assembly
above the Valve Body Assembly and bring them
together so that the Guide Rods (31) enter their
holes in the Divorced Section (6) and the end of the
Lead Screw (20) seats in the Connection Block (18).

17. Install the Screws (4) into the Connection Block (18)
against the groove in the Lead Screw (20).

18. Install the left Side Block (17) with Screws (5). Insert
the clear plastic Guards (not shown) into the slots in
the left Side Block (17) so that the access hole in
the guard is toward the top of the valve. Install the
right Side Block (17) so that the Guards seat in the
slots and secure with Screws (5).

Mount the Valve End Caps to the Seal Plate
Cups

19. Install a lubricated U-cup Seal (24) into the groove
of the left Spool Shift Piston (24). The piston is
thicker on one side of the groove. The lip of the seal
must be facing the thicker section.

20 3A0874D

20. Lubricate the bore in the End Cap (25). Slide the
Spool Shift Piston (24) into the left End Cap (25)
tucking the lip of the U-cup seal (24) into the End
Cap (25) carefully.

21. Install the Piston/End Cap onto the left Seal Plate
(14) using four Screws (26). Tighten the screws in a
cross pattern gradually to prevent binding due to
misalignment (like you would tighten lug nuts on a
car tire).

22. Push the Spool Rod (7) into the left side until it con­tacts the piston. Repeat steps 19 - 21 for the right
side.

23. Install any removable needles that were previously
removed.

24. If your valve has cycle detection, slide the cycle
detection sensors into the slots on the end caps and
secure with the set screws. Do not overtighten the
set screws as the sensors may be damaged.

Rebuild

25. Connect the air lines.

26. Perform the Dry Run, Loading & Priming and Output
Verification procedures. Perform Operation Adjust­ment procedures if required.

3A0874D 21

Rebuild

Motor and Motor Coupling Assembly

Disconnect electrical power before servicing the motor
and motor coupling assembly. Refer to the illustrations
on the following page.

1. Assemble Motor Coupler (3) by inserting Roll Pins
(5) and Screws (4).

Note: This step is only required if the motor coupler
has been disassembled for service or removed from
the motor.

2. Assemble Lead Screw Nut (6) with Bearing (9) and
E-ring (8).

3. Thread Lead Screw (7) into Lead Screw Nut assem­bly until lead screw is flush with top of nut.

4. Slide Lead Screw & Nut Assembly into Divorced
Section (11).

5. Slide Bearing Retaining Sleeve (2) into Divorced
Section (11) taking care to line up the slots in the
two pieces. Secure in place with Socket Head Cap
Screws (10).

6. Secure Motor Mounting Plate (1) to Divorced Sec­tion using Socket Head Cap Screws (15).

7. Place Motor Coupler (3) on motor shaft and lightly
snug Screws (4) leaving about ½” of motor shaft vis­ible between Motor Coupler and motor. Insert Motor
Coupler (3) through Motor Mounting Plate (1), align
3 Roll Pins (5) and insert into Lead Screw Nut (6)
and gently seat the motor.

Note: This step is only required if the motor coupler
has been disassembled for service or removed from
the motor.

8. Remove motor and motor coupler, tighten Screws
(4) and reassemble securing motor to Motor Mount­ing Plate using Socket Head Cap Screws (14).

22 3A0874D

Motor and Motor Coupling Illustration

Pin Alignment

Motor and Motor Coupling Illustration

Ref DESCRIPTION

1 MOTOR MOUNTING PLATE
2 BEARING RETAINING SLEEVE
3 MOTOR COUPLER
4 SCREW, SHC,#6-32x3/8
5 ROLL PIN, 1/8 DIA.x 1/2
6 LEAD SCREW NUT
7 LEAD SCREW
8E-RING
9 BEARING
10 SCREW,SHC,#10-32x1/2
11 DIVORCED SECTION
12 METERING ROD CONNECTION BL0CK
13 SET SCREW, #8-32x3/16
14 SCREW,SHC,#10-32x1/2
15 SCREW,SHC,#6-32x 3/8

Motor and Motor Coupling Installation.

Location of the Motor shaft in the Motor Cou­pling is important for proper electrical control of
the dispense valve.

3A0874D 23

Electrical Requirements

Electrical Requirements

See Related Manuals on page 2 for valve with controls/motor integrated.

Valve shown is with controls/motor not integrated. Valve with controls/motor integrated comes with LS-Home, sole­noid - OPEN/CLOSE and all wires terminated at a plug.

LABEL LS-UP

AMPLIFER,1CHANNEL,OPTICAL
FIBER PHOTOELECTRIC SENSOR,
12-24VDC,PNP,13FTLG,

22AWG,PVC CABLE

BROWN (+)

BLUE (-)

BLACK (SIGNAL)

LABEL LS-LOW

AMPLIFER,1CHANNEL,OPTICAL

FIBER PHOTOELECTRIC SENSOR,
12-24VDC,PNP,13FTLG,

22AWG,PVC CABLE

BROWN (+)

BLUE (-)

BLACK (SIGNAL)

LABEL HT-1, 240VAC

BLACK (LOAD)

BLACK (LOAD)

LABEL LS-OPEN

REED MAGNET,5-120VAC/DC,
NO,PNP,9FTLG,24GA AMW,PVC CABLE

BROWN (+)

WHITE (SIGNAL)

LABEL GRND

GREEN (GROUND)

LABEL LS-CLOSE

REED MAGNET,5-120VAC/DC,
NO,PNP,9FTLG,24GA AMW,PVC CABLE

BROWN (+)

WHITE (SIGNAL)

LABEL HT-2 240VAC100W

BLACK (LOAD)
BLACK (LOAD)

GREEN

YELLOW

FIG. 8

24 3A0874D

Technical Data

Technical Data

NOTE: See feed system manuals for dimensions, weights, and wetted parts lists for those components. Dimensions,

weights, and wetted parts for components not covered in component feed system manuals and for combined assem­blies are listed below.

Maximum Ambient Temperature. . . . . . . . . . . . . . . . . . . . 110°F (43°C)

Maximum Operating Temp . . . . . . . . . . . . . . . . . . . . . . . . 300°F (149°C)

Maximum Outlet Fluid Working Pressure. . . . . . . . . . . . . 2000 psi (14 MPa, 138 bar)

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

Minimum Air Working Pressure . . . . . . . . . . . . . . . . . . . . 70 psi (480 kPa, 4.8 bar)

Maximum Material Inlet Pressure. . . . . . . . . . . . . . . . . . . Metal Sleeves: 1200 psi (8 MPa, 83 bar)

Supplied Air Requirements. . . . . . . . . . . . . . . . . . . . . . . . 1 to 3 cfm at 80 psi to 100 psi

Shot Size Range (depending on metering rods selected) 0.002 cc to 3.150 cc
Maximum Cycle Rate (application dependent, heat

required) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Up to 15 cycles per minute (with standard Graco motor)

Dimensions (H x L x W), height to end of material inlet

block (less needles) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 in.: 14.83 x 6.23 x 2.91 in. (377 x 158 x 74 mm)

2 in.: 17.85 x 6.23 x 2.91 in. (453 x 158 x 74 mm)
Graco-supplied Feed System Assemblies

(depends on selected options):
Smallest: 22.5 x 10 x 4 in. (572 x 254 x 102 mm)
Largest: 60 x 28 x 19 in. (1524 x 711 x 483 mm)

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Metering Valve: 3 - 5 lb (1.36 - 2.27 kg)

with Standard Graco motor: 7-9 lb (3.18 - 4.08 kg)

Wetted Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Metering Valve: Hardened steel, 303/304, 404, UHM-

WPE, Tungsten, carbide, fluoroelastomer, EPDM,
PTFE

Graco-supplied Feed System Hoses and Fittings: Mild

steel, 303/304, PTFE, buna, polyethylene, polypropyl­ene

Graco-supplied Tanks: Polyethylene, 303/304, mild steel

Motor Specifications

If a non-Graco motor is used with the Motor Driven
model, it must meet the following specifications.

Frame: NEMA 23

Torque at Typical Dispense Speed: 180 oz-in.

(11.25 in-lb) at 10 revolutions per second (1/2 in. rod
travel per second) or less. Above 10 revolutions per sec­ond, the power declines.

Torque at Maximum Speed: 117 oz-in (7.3 in-lb) at 20
revolutions per second (1 in. of rod travel per second).

Motor Face Pilot Boss: 1.5 in. diameter by 0.0625 in.
projection from motor face flange.

Shaft Size: 0.25 diameter by 0.75 in. projection from
motor face pilot boss to end of shaft.

3A0874D 25

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
rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite
de ou en rapport, directement ou indirectement, avec les procédures concernées.

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.
Toll Free: 1-800-746-1334 or Fax: [phone]

All written and visual data contained in this document reflects the latest product information available at the time of publication.

GRACO OHIO INC. 8400 PORT JACKSON AVE NW, NORTH CANTON, OH 44720

Graco reserves the right to make changes at any time without notice.

Original instructions. This manual contains English. MM 3A0874

Graco Headquarters: Minneapolis

International Offices: Belgium, China, Japan, Korea

Copyright 2010, Graco Ohio Inc. is registered to ISO 9001

www.graco.com

Revised November 2013