Graco 24T946 Operation manual

Instructions - Parts

Mortar Spray

Applicators

For air-assisted spraying of high viscosity materials, such as mortars, mastics, or epoxies.

Compatible with solvent borne-materials and solvent flushing. For professional use only.

Model 24T946, Series A

Pole Applicator

Model 24T947, Series A

Flex Applicator

1000 psi (7 MPa, 70 bar) Maximum Working Pressure

150 psi (1.0 MPa, 10 bar) Maximum Air Pressure

Important Safety Instructions

Read all warnings and instructions in this

manual and in all supplied manuals. Save all

instructions.

ti22246a

24T946 shown

332767B

Warnings

2332767B

Contents

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Component Identification . . . . . . . . . . . . . . . . . . . . 5

Flush Before Using Equipment . . . . . . . . . . . . . . . 6

Pressure Relief Procedure . . . . . . . . . . . . . . . . . . . 6

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Spraying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 12

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 12

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. When

these symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-specific

hazard symbols and warnings not covered in this section may appear throughout the body of this manual where

applicable.

WARNING

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.

• Hold gun firmly to side of grounded pail when triggering into pail. Do not use pail liners unless they

are antistatic 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 fire extinguisher in the work area.

SKIN INJECTION HAZARD

High-pressure fluid from dispensing device, 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 dispensing device at anyone or at any part of the body.

• Do not put your hand over the fluid outlet.

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

•FollowthePressure Relief Procedure when you stop dispensing and before cleaning, checking, or

servicing equipment.

• Tighten all fluid connections before operating the equipment.

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

Warnings

332767B 3

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 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 manu-

facturer’s replacement parts only.

• Do not alter or modify equipment. Alterations or modifications 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 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.

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 MSDSs 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.

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. This protective equipment includes but is

not limited to:

• Protective eyewear, and hearing protection.

• Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer

PRESSURIZED ALUMINUM PARTS HAZARD

Use of fluids that are incompatible with aluminum in pressurized equipment can cause serious chemical

reaction and equipment rupture. Failure to follow this warning can result in death, serious injury, or prop-

erty damage.

• Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or

fluids containing such solvents.

• Many other fluids may contain chemicals that can react with aluminum. Contact your material sup-

plier for compatibility.

SUCTION HAZARD

Powerful suction could cause serious injury.

• Never place hands near the pump fluid inlet when pump is operating or pressurized.

WARNING

Warnings

4332767B

Material Self-ignition

Changing Materials

Grounding

Applicator: ground through connection to a properly

grounded fluid hose and pump.

Fluid supply container: follow local code.

Object being sprayed: 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 sur-

face, such as paper or cardboard, which interrupts

grounding continuity.

To maintain grounding continuity when flushing or

relieving pressure: hold metal part of the spray

gun/dispense valve firmly to the side of a grounded

metal pail, then trigger the gun/valve.

Some materials may become self-igniting if applied

too thick. Read material manufacturer’s warnings and

material MSDS.

NOTICE

Changing the material types used in your equipment

requires special attention to avoid equipment damage

and downtime.

• 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.

• When changing between epoxies and urethanes

or polyureas, disassemble and clean all fluid

components and change hoses.

The equipment must be grounded to reduce the risk

of static sparking. Static sparking can cause fumes to

ignite or explode. Improper grounding can cause

electric shock. Grounding provides an escape wire

for the electric current.

Component Identification

332767B 5

Component Identification

Key:

A Air Assist Air Line

B Air Needle (adjustable position)

C Air Needle Retaining Screw

D Fluid Housing

ETip(Nozzle)

F Rubber Tip Retainer

G Needle Valve for Air Assist Flow Control

H Air Assist Shutoff Ball Valve

J Air Pilot Valve for Remote Pump Operation

. 1

Flush Before Using Equipment

6332767B

Flush Before Using

Equipment

The equipment was tested with lightweight oil, which is

left in the fluid passages to protect parts. To avoid con-

taminating your fluid with oil, flush the equipment with a

compatible solvent before using the equipment. See

Grounding on page 4.

Pressure Relief

Procedure

Follow the Pressure Relief Procedure whenever

you see this symbol.

1. Shut off pump and sprayer.

2. Close applicator air valve.

3. Open applicator fluid ball valve.

Setup

Install Applicator Tip (Nozzle)

NOTE: See Component Identification on page 5 for

part references.

1. Perform Pressure Relief Procedure.

2. Install tip (E) onto fluid housing (F) then install rub-

ber tip retainer over it and secure to fluid housing.

This equipment stays pressurized until pressure is

manually relieved. To help prevent serious injury

from pressurized fluid, such as skin injection,

splashing fluid and moving parts, follow the Pressure

Relief Procedure when you stop spraying and before

cleaning, checking, or servicing the equipment.

Spraying

332767B 7

Spraying

Key:

A Air Assist Air Line

B Air Needle (adjustable position)

C Air Needle Retaining Screw

D Fluid Housing

ETip(Nozzle)

F Rubber Tip Retainer

G Needle Valve for Air Assist Flow Control

H Air Assist Shutoff Ball Valve

J Air Pilot Valve for Remote Pump Operation

General Adjustments

The spray pattern can be adjusted by changing:

•Tip(E)size

•Fluidflow

• Air flow, use needle valve (G)

• Air needle (B) position

Adjust Air Flow: Fully open the air assist valve (H),

while adjusting the needle valve (G) for the minimum air

flow necessary for a good pattern. Air bleeds from the

applicator nozzle whenever the applicator air valve (H)

is open. Close the valve to stop the air flow, if desired.

Otherwise, the air valve can stay open during priming.

Air must be on prior to fluid flow.

Adjust Air Needle (B) position: Ensure the air needle

(B) slightly behind the tip (E).

NOTE: Installing needle (B) too far forward can restrict

or completely block material flow. This can result in the

retainer (F) blowing off. Installing the needle too far back

can raise the pressure behind the fluid enough to blow

the retainer (B) off and can cause dripping.

Air Flow Valve Adjustment

To decrease air flow, turn valve knob (G) clockwise.

To increase air flow, turn valve knob (G) counterclock-

wise.

Check material and thin as needed to maintain the

proper consistency. The material may thicken as it sits

and could slow down application or affect the spray pat-

tern.

Flush and dry applicator thoroughly at the end of each

use. Tips and retainers must be cleaned by hand.

. 2

Spraying

8332767B

Material Flow Adjustments

For a lighter spray pattern, adjust the air needle (B)

closer to the fluid nozzle and/or reduce the fluid flow.

For a heavier spray pattern, adjust the air needle (B) far-

ther back from the fluid tip and/or increase the fluid flow.

NOTE: Withdrawing needle (B) too far can force air

back into fluid hose, stopping material flow.

Spray Techniques

1. Test the spray pattern on cardboard. Hold the appli-

cator 6-18 in. (150-450 mm) from the surface. Use

this spraying distance for most applications.

2. Adjust fluid flow until material flow is adequate.

3. Adjust the applicator air assist needle valve to

achieve a uniform round spray pattern.

4. Consider the size of aggregate in the material and

the coarseness of the spray pattern. Larger nozzles

allow heavier patterns.

5. Overlap each stroke 50%. A circular overlapping

pattern may give the best results, and is obtained by

grasping the flex-head and swinging the head

around as the hose flexes.

When spraying small confined areas use the valve and

knob to make fine adjustments without adjusting the

pump.

Installing Nozzle Retaining Cap

1. Place nozzle retaining cap over top lip of applicator

housing.

2. Insert screwdriver through hole in tab of nozzle

retaining cap.

3. Push screwdriver head against notch on applicator

tip and pry nozzle retaining cap over lip until it snaps

into place.

Material Compatibility

The nylon hose in the Flex Applicator is compatible with

solvents. The rubber gasket in the cam and groove inlet

fitting and the rubber nozzle retainer should be hand

cleaned and dried after each use.

ti14355a

NOTICE

To prevent the seals and rubber tip from swelling, do

not leave solvent in the applicator when not in use.

Spraying

332767B 9

Parts

10 332767B

Parts

24T947 Flex Kit and 24T946 Pole Kit

† Parts included in spare spray head kit 24B956 (purchase sep-

arately).

** Optional nozzle sizes available:

16A443: 3/16 in.

16A444: 1/4 in.

16A448: 1/2 in.

16A449: 9/16 in.

◆Parts included in needle valve kit 206264 (purchase sepa-

rately). When received, unscrew assembly then install in man-

ifold (114).

Orient as shown.

Apply pipe sealant to all non-swiveling pipe threads.

Apply lithium grease.

Turn needle fully counter-clockwise before screwing nut (119) into

block (114).

Hand-tight.

Apply medium strength threadlocker to external threads.

Assemble items 120, 127, 135, and 119 before press fit of items 121

and 120.

Install bracket bolt (137) below handle (136).

122

113

118

116

136

113

121

119

127, 135

116

114

117

115

104

103

102

101

137

112

111

124

110

105

109

106

108

107

7 4

120

134

Ref Part Description Qty

101 191633 TUBE, coupled, 30 in.

(model 24T946)

24T322 TUBE, coupled, flexible, 1 in. ID, nylon core,

23 in. (model 24T947)

102 16V985 BRACKET, manifold, air 1

103 113114 NUT, lock 1

104 289874 KIT, repair, coupler 1

104a 16W507 KIT, gasket, nitrile, 6-pack

105† 16A247 HOUSING, head, applicator 1

106a† 16A405 CAP, retaining, nozzle, medium hardness 1

106b† 16A421 CAP, retaining, nozzle, hard 1

107†** 16A445 NOZZLE, applicator, 5/16 in., stainless steel 1

108† 16A446 NOZZLE, applicator, 3/8 in., stainless steel 1

109† 16A447 NOZZLE, applicator, 7/16 in., stainless steel 1

110† 100085 SCREW, thumb 1

111† 190947 NEEDLE, air 1

112† M70895 BUSHING, reducer 1

113 113601 HOSE, air, coupled, 31.5 in. (model 24T946) 1

113377 HOSE, air, coupled, 21.0 in. (model 24T947) 1

114 16V986 MANIFOLD, air 1

115 100840 FITTING, elbow, street 1

116 156971 FITTING, nipple, short 2

117 113329 VALVE, ball, vented, 1/4 in. 1

118 15B565 VALVE, ball 1

119◆--- NUT, packing 1

120◆--- NEEDLE, valve 1

121◆--- KNOB, adjusting 1

122 111235 SCREW, machine, panhead 3

124† 121399 PACKING, o-ring, 012, FX-75 1

127◆157628 PACKING, o-ring, Buna-N 1

133 127311 FITTING, compress, 1/4 npt x 1/4 tube 1

134 169970 FITTING, line air 1

135◆166531 WASHER, non-metallic 1

136 16W587 HANDLE, applicator

(included with model 24T946 only)

137 16W588 CLAMP, handle

(included with model 24T946 only)

Ref Part Description Qty

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