Graco SaniForce 26C799 User manual

3A8816A

Instructions

Hygienic SaniForce®

Automatic Airless

Spray Guns

For use in hygienic spraying applications for automatic airless systems. For professional

use only.

Model 26C799

600 psi (4.1 MPa, 41 bar) Maximum Working Fluid

Pressure

200 psi (1.4 MPa, 14 bar) Maximum Working Air

Pressure

Important Safety Instructions

Read all warnings and instructions in this

manual before using the equipment.

Save these instructions.

2 3A8816A

Contents

Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

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

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

General Information . . . . . . . . . . . . . . . . . . . . . . . 5

Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . 5

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

Mount the Equipment . . . . . . . . . . . . . . . . . . . . . 6

Ventilate the Workspace . . . . . . . . . . . . . . . . . . . 6

Install Accessories . . . . . . . . . . . . . . . . . . . . . . . . 7

Flush Before First Use . . . . . . . . . . . . . . . . . . . . . 7

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Select a Spray Tip . . . . . . . . . . . . . . . . . . . . . . . . 8

Install the Spray Tip . . . . . . . . . . . . . . . . . . . . . . . 8

Adjust the Spray Tip . . . . . . . . . . . . . . . . . . . . . . 8

Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Before Each Use . . . . . . . . . . . . . . . . . . . . . . . . . 9

Pressure Relief Procedure . . . . . . . . . . . . . . . . . . 9

Start and Adjust the Equipment. . . . . . . . . . . . . 10

Shut Down the Equipment. . . . . . . . . . . . . . . . . 11

Flushing and Storage . . . . . . . . . . . . . . . . . . . . . 11

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Establish a Preventive Maintenance Schedule . 12

Clean the Equipment . . . . . . . . . . . . . . . . . . . . . 12

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Prepare Equipment for Repair . . . . . . . . . . . . . . 15

Replace the Spray Tip . . . . . . . . . . . . . . . . . . . . 15

Repair the Fluid Section . . . . . . . . . . . . . . . . . . . 16

Repair the Air Piston, Spring, and Seals . . . . . . 17

Recycling and Disposal . . . . . . . . . . . . . . . . . . . . . 17

End of Product Life. . . . . . . . . . . . . . . . . . . . . . . 17

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Spray Tip Selection Chart . . . . . . . . . . . . . . . . . 19

Kits and Accessories . . . . . . . . . . . . . . . . . . . . . . . 20

Part Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Accessory Kits . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Technical Specifications . . . . . . . . . . . . . . . . . . . . 22

California Proposition 65 . . . . . . . . . . . . . . . . . . . . 22

Graco Standard Warranty. . . . . . . . . . . . . . . . . . . . 24

Approvals

Model 26C799 is certified:

II 2 G

Ex h IIA T6 Gb

Warnings

3A8816A 3

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-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

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 Specifications in all equipment manuals.

• Use fluids and solvents that are compatible with equipment wetted parts. See Technical

Specifications in all equipment manuals. Read fluid and solvent manufacturer’s warnings. For

complete information about your material, request Safety Data Sheets (SDSs) 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 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 lines and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.

• Do not kink or over bend lines or use lines to pull equipment.

• Keep children and animals away from work area.

• Comply with all applicable safety regulations.

PRESSURIZED EQUIPMENT HAZARD

Fluid from the equipment, leaks, or ruptured components can splash in the eyes or on skin and cause

serious injury.

• Follow the Pressure Relief Procedure when you stop spraying/dispensing and before cleaning,

checking, or servicing equipment.

• Tighten all fluid connections before operating the equipment.

• Check lines, tubes, and couplings daily. Replace worn or damaged parts immediately.

Warnings

4 3A8816A

FIRE AND EXPLOSION HAZARD

Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. Paint or

solvent flowing through the equipment can cause static sparking. 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 sparking).

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

• Never spray or flush 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 flammable fumes

are present.

• Use only grounded fluid and air lines.

• Hold gun firmly 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 fire extinguisher in the work area.

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 Safety Data Sheets (SDSs) 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.

MOVING PARTS HAZARD

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

• Keep clear of moving parts.

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

• Equipment can start without warning. Before checking, moving, or servicing equipment, follow the

Pressure Relief Procedure and disconnect all power sources.

PERSONAL PROTECTIVE EQUIPMENT

Wear appropriate protective equipment when in the work area to help prevent serious injury, including

eye injury, hearing loss, and inhalation of toxic fumes. 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.

WARNING

Installation

3A8816A 5

Installation

General Information

•A typical installation is shown in FIG. 1. It is only a

guide for selecting and installing system

components. Contact your Graco distributor for

assistance in planning a system to suit your needs.

•Always use genuine Graco parts and accessories.

•Reference numbers and letters in parentheses refer

to the callouts in the figures.

Typical Installation

KEY:

FIG. 1: Typical Installation

12 in.

(305 mm)

AAir line filter

BBall valves

CPump

DHigh pressure fluid filters

ESecond bleed-type air valve

FPump air control (includes pump air regulator)

GFlexible, conductive fluid supply line

HGun air regulator

JNormally closed 3-way air solenoid valve

(required, not supplied)

KHeater (if used)

LTee handle

MFluid filter

NFluid drain valve

P* Automatic spray gun

RAir line

STimer

TTimer switch

UFluid regulator

V* Workpiece

WBleed-type master air valve

YFluid shutoff valve

ZPump ground wire

* Ensure that the tip of the spray gun (P) is 12 in. (305 mm)

away from the surface of the workpiece (V).

NOTE: See Accessory Kits, page 20, for system

components that are available separately (purchase

separately).

Installation

6 3A8816A

Grounding

The following grounding instructions are minimum

requirements for a system. Check your system for other

components that must be grounded. Follow local

codes and regulations. Connect the system to a true

earth ground.

Spray gun: Ground through connection to a properly

grounded fluid line and pump.

Pump: Ground as detailed in your separate pump

manual.

Air and fluid lines: Use only electrically conductive

lines with a maximum of 100 ft (30.5 m) combined line

length to ensure grounding continuity. Check electrical

resistance of lines. If total resistance to ground exceeds

25 megohms, replace line immediately.

Air compressor: Follow manufacturer’s

recommendations.

Fluid supply container: Follow local codes and

regulations.

Object being sprayed: Follow local codes and

regulations.

Solvent pails used when flushing: Follow local codes

and regulations. 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.

Accessories: Follow local codes and regulations.

To maintain grounding continuity when flushing or

relieving pressure: Hold a metal part of the spray gun

firmly to the side of a grounded metal pail, then actuate

the gun.

Mount the Equipment

1. Ensure that the mounting setup can support the

weight of the spray gun (P), system components,

and accessories, as well as the stress caused

during operation.

2. Mount the spray gun (P) on a rod (AB) with a

diameter of 0.50 in. (12.7 mm). See FIG. 2.

3. Tighten the tee handle (L) to secure the spray gun

(P) in place.

NOTE: Ensure that the tip (22) of the spray gun (P)

is 12 in. (305 mm) away from the surface of the

workpiece (V). See FIG. 2.

NOTE: For ease of operation and service, mount

the spray gun so the spray gun components are

easily accessible.

FIG. 2: Mounting Rod

Ventilate the Workspace

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.

To prevent hazardous concentrations of toxic or

flammable vapors, only use the equipment in a

well-ventilated area. Only operate the equipment

when ventilation fans are operating. Follow local

codes and regulations.

Installation

3A8816A 7

Install Accessories

Install the following accessories in the order shown in

FIG. 1, using adapters as necessary.

Install Air Line Accessories

•Bleed-type master air valve (W): Required in your

system to relieve air trapped between the air supply

and the gun when the valve is closed. Locate

upstream from the dispensing point.

•Second bleed-type air valve (E): Required in your

system to relieve air trapped between the air supply

and the pump when the valve is closed.

•Gun air regulator (H): controls air pressure to the

gun.

•Pump air regulator (F): To control pump speed

and outlet pressure. Locate close to the pump.

•Air line filter (A): Removes harmful dirt and

moisture from compressed air supply.

•Air supply: Use a normally closed 3-way air

solenoid valve (J) to control the spray gun (P).

Attach a flexible, conductive air supply line (R) from

the 3-way air solenoid valve (J) to the air inlet

adapter (3). See FIG. 3.

FIG. 3

Install Fluid Line Accessories

•Fluid filter (M): With a 60 mesh (250 micron)

stainless steel element to filter particles from the

fluid as it leaves the pump.

•Fluid drain valve (N): Required in your system to

relieve fluid pressure in the fluid line and gun.

•Fluid shutoff valve (Y): Shuts off fluid flow.

•Fluid pressure regulator (U): For more precise

adjustment of the fluid pressure to the gun.

•Gun (P): To dispense fluid.

•Fluid supply: Connect a flexible, conductive fluid

supply line (G) from the pump to the fluid inlet

housing (9) of the gun. See FIG. 3.

Flush Before First Use

The equipment was tested with water, which is left in

the fluid passages to protect parts. If the fluid being

dispensed could be contaminated by water, flush the

equipment with a compatible solvent before using the

equipment. See Flushing and Storage, page 11.

Trapped air can cause the equipment to actuate

unexpectedly, which could result in serious injury

from splashing fluid or moving parts. Keep fingers

away from moving parts. Keep body parts away from

the spraying end of the equipment.

Setup

8 3A8816A

Setup

Select a Spray Tip

A spray tip (22) is not provided with the gun assembly.

Select a spray tip (purchase separately) to install in the

gun. See Spray Tip Selection Chart, page 19.

Install the Spray Tip

1. Follow the Pressure Relief Procedure, page 9.

2. Close all air valves.

3. Unscrew the tip retaining nut (23).

4. Remove the gasket (21).

5. Install the spray tip (22) and gasket (21) inside the

tip retaining nut (23).

6. Securely tighten the tip retaining nut (23) to the

housing (9).

FIG. 4: Spray Tip

Adjust the Spray Tip

Adjust the Spray Pattern

The spray tip position determines the spray direction

and pattern orientation. To adjust the spray pattern

orientation:

1. Loosen the tip retaining nut (23).

2. Orient the slot in the spray tip (22) horizontally for a

horizontal pattern and vertically for a vertical

pattern. See FIG. 5.

3. Tighten the tip retaining nut (23) to secure the tip in

place. See FIG. 4.

Adjust the Spray Coverage

The spray tip orifice size and cut angle determine the

coverage and size of the spray pattern. For more

coverage, install a spray tip with a larger orifice.

1. Select a spray tip. See Spray Tip Selection Chart,

page 19.

2. Replace the spray tip as needed to meet your

coverage and spray pattern requirements. Follow

Replace the Spray Tip, page 15.

To avoid injury from pressurized fluid, do not put your

hand in front of the spray tip when installing,

removing, or adjusting the spray tip.

NO YES

Vertical Pattern

Horizontal Pattern

FIG. 5: Spray Pattern ti8196a ti8170

NOTICE

To prevent equipment damage, do not increase

pump pressure to increase spray coverage. Instead,

use a larger spray tip.

Operation

3A8816A 9

Operation

Before Each Use

Check the Spray Tip

Before each use, check the spray tip (22) before

operating the equipment:

• Clean the spray tip as needed. See Clean the

Spray Tip, page 13.

• Adjust the spray tip as needed. See Adjust the

Spray Tip, page 8.

• Replace worn or damaged parts as needed.

Tighten Connections

Before each use, check and tighten all air and fluid

connections before operating the equipment. Replace

worn or damaged parts as needed.

Lubricate the Equipment

1. Before each day of operation, lubricate the

exposed portion of the needle (19) and the air

piston (16). Use a lubricant compatible with the

fluid being dispensed.

2. After lubricating, cover the exposed portions or the

needle (19) and air piston (16) with a piece of plastic

to prevent fluid build-up on these parts.

Flush the Equipment

Flush the equipment before each use, before changing

colors, and after operating the equipment.

See Flushing and Storage, page 11.

Pressure Relief Procedure

Follow the Pressure Relief Procedure

whenever you see this symbol.

1. Shut off power to the pump (C).

2. Close the bleed-type air valve (E).

3. Close the fluid shutoff valve (Y).

4. Hold a metal part of the gun firmly to a grounded

metal pail. See FIG. 6.

5. Actuate the gun into a grounded metal waste

container to relieve pressure. See FIG. 6.

FIG. 6

6. Close the bleed-type master air valve (W).

NOTICE

Firmly tighten all fasteners and connections to avoid

air or fluid leaks. Air or fluid leaks may damage

equipment parts.

NOTICE

Do not over-lubricate the equipment. Lubricant could

contaminate your fluid supply or other equipment.

Excessive lubrication can also cause the equipment

to malfunction.

NOTICE

Fluid buildup on equipment parts could damage the

fluid section. To prevent fluid buildup on equipment

parts, cover exposed equipment parts with a piece of

plastic.

This equipment stays pressurized until pressure is

manually relieved. To help prevent serious injury from

pressurized fluid, such as splashing fluid and moving

parts, follow the Pressure Relief Procedure when

you stop spraying and before cleaning, checking, or

servicing the equipment.

Operation

10 3A8816A

7. Open all fluid drain valves (N) in the system. Have a

waste container ready to catch drainage. Leave

drain valves open until ready to spray again.

8. If the spray tip or line is clogged, or if the pressure

has not been fully relieved:

a. Very slowly loosen the tip retaining nut (23) or

the fluid line clamp (AC) to gradually relieve

pressure. See FIG. 6.

b. Remove the tip retaining nut (23) or the fluid line

clamp (AC) completely.

c. Clear the obstruction in the line or tip.

Start and Adjust the Equipment

1. Confirm that the equipment is properly grounded.

See Grounding, page 6.

2. Check the spray tip (22) before operating the

equipment. See Check the Spray Tip, page 9.

3. Check and tighten the tip retaining nut (23) before

operating the equipment. Replace worn or

damaged parts as needed.

4. Check and tighten all air and fluid connections

before operating the equipment. Replace worn or

damaged parts as needed.

5. Set the timer (S) so that the gun will start spraying

before meeting the workpiece (V) and stop spraying

just after the workpiece has passed.

6. Set the actuating air to a minimum of 50 psi (325

kPa, 3.4 bar). Do not exceed 200 psi (1.4 MPa,

14 bar)

7. Start the pump. See your separate pump manual.

8. Adjust the pump speed and pressure to modify

atomization.

NOTE: Use the lowest pump speed and pressure

necessary for the desired results. Higher speed or

pressure may not improve the spray pattern and

will cause premature tip wear and pump wear.

NOTE: The spray tip orifice size and angle determine

coverage and pattern. See Adjust the Spray Pattern,

page 8, and Adjust the Spray Coverage, page 8.

To avoid injury from pressurized fluid, such as

splashing fluid and moving parts:

• Do not put your hand in front of the spray tip.

• Keep fingers away from moving parts, such as the

needle (19).

• Do not exceed the maximum fluid pressure rating.

See Technical Specifications, page 22.

NOTICE

Firmly tighten all connections to avoid air or fluid

leaks. Air or fluid leaks may damage equipment

parts.

NOTICE

To prevent equipment damage, do not increase

pump pressure to increase spray coverage. Instead,

use a larger spray tip.

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