Graco 312784D User Manual

Instructions-Parts

Part No. 15V826

312784D

Gun Flush Box Kit

Kit includes parts to install a Graco Gun Flush Box in a ProMix® 2KS or ProMix® 2KE Proportioning System. For professional use only.

Bare Gun Flush Box is approved for use in explosive atmospheres. See manual 309227.

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

Important Safety Instructions

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

ENG

Related Manuals

Contents

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

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

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

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Intrinsically Safe Installation . . . . . . . . . . . . . . . . 5

Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Before Installing . . . . . . . . . . . . . . . . . . . . . . . . . 5

Install the Air Flow Switch . . . . . . . . . . . . . . . . . . 6

Install the Pressure Switch . . . . . . . . . . . . . . . . . 9

Gun Flush Box Solenoid . . . . . . . . . . . . . . . . . . 10

Atomizing Air Safety Shutoff Valve . . . . . . . . . . 14

Connect the Air Tubes to the Gun Flush Box . . 14

Trigger Height Adjustment . . . . . . . . . . . . . . . . . 14

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

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

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

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 22

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . 22

Related Manuals

See the following manuals for additional information on the ProMix 2KS, ProMix 2KE, and Gun Flush Box Kits.

Manual Description

309227 Bare Gun Flush Box 312775 ProMix 2KS Manual System Installation 312776 ProMix 2KS Manual System Operation 312777 ProMix 2KS Manual System

Repair-Parts

312778 ProMix 2KS Automatic System Installa-

tion

312779 ProMix 2KS Automatic System Opera-

tion

312780 ProMix 2KS Automatic System

Repair-Parts 3A0868 ProMix 2KE Pump-Based Operation 3A0869 ProMix 2KE Meter-Based Operation 3A0870 ProMix 2KE Repair-Parts

2 312784D

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, 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.

• 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.

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 spray tip.

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

• Do not spray without tip guard and trigger guard installed.

• Engage trigger lock when not spraying.

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

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.

312784D 3

Warnings

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 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 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.

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.

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

4 312784D

Installation

See FIG. 2 for a typical installation of the gun flush box kit. F

IG. 2 is only a guide. Contact your Graco distributor

for assistance in designing a system to meet your application needs.

Do not bypass the gun flush box interlock sensors. They prevent the gun flush box from operating unless the gun is in position and the gun flush box door is locked.

If using an electrostatic gun, shut off electrostatics before flushing. Follow the warnings in your electrostatic gun manual.

Location

Grounding

Ground the gun flush box as explained in the Gun Flush Box manual 309227.

Before Installing

• To avoid electric shock, turn off EasyKey power before installing.

• All electrical wiring must be done by a qualified electrician and comply with all local codes and regulations.

• Do not substitute system components as this may impair intrinsic safety.

• Read Warnings, page 3.

Locate and mount the gun flush box as explained in the Gun Flush Box manual 309227.

Intrinsically Safe Installation

Follow instructions in your proportioner manual.

Ventilation

Electrically interlock the spray booth air supply (J) with ventilators, using a ventilation interlock valve (K), to prevent the gun flush box from operating when ventilating fans are not operating. See F follow all applicable air exhaust velocity codes for your area and type of installation.

IG. 2, page 6. Check and

NOTICE

To avoid damaging circuit board when servicing, wear Part No. 112190 grounding strap on wrist and ground appropriately.

1. Close main air shutoff valve on air supply line and on proportioner.

2. Shut off proportioner power. F

3. Loosen the 4 screws and remove the Fluid Station cover.

IG. 1: Power Off (ProMix 2KS Shown)

IG. 1.

0 = OFF

TI12657a

312784D 5

Installation

Key:

GFB Gun Flush Box (see FIG. 11 for detail of air line connec-

tion fittings A, C, P, S) A Air Line from GFB to Pressure Switch Input B Fluid Supply to Gun C Air Line from GFB to GFB Solenoid Output D Atomizing Air Supply E Gun Air Safety Shutoff Valve (see page 14)

GFBHD

F Fluid Station GSpray Gun H Main Air Supply Line P Air Line from GFB to Fluid Station Main Air Manifold S Air Line from GFB to Gun Air Safety Shutoff Valve Pilot

Por t

TI15100a

IG. 2: Typical Installation (ProMix 2KS System Shown)

Install the Air Flow Switch

2. See F

IG. 3 for the ProMix 2KS or FIG. 4 for the Pro-

Mix 2KE. Position the air flow switch (102) as shown. Install the nipple (103) and elbow (104). Assemble the bulkhead fitting (105) as shown, to secure the switch to the side of the panel.

3. Route the air flow switch wires through the desig-

NOTE: Each gun flush box includes one air flow switch (AFS). Install the air flow switch as shown in F

IG. 3. If

you are using a second gun flush box, install its air flow

nated strain relief (K). Connect AFS#1 wires to pins 1 and 2. ProMix 2KS only: Connect AFS#2 wires (if used) to pins 3 and 4.

switch next to the first switch, as shown.

1. Follow Before Installing, page 5.

6 312784D

Installation

4. See FIG. 2. Connect a 1/4 npt atomizing air line (D) from the AFS outlet nipple (103) to the air inlet port of the air safety shutoff valve (E, also see F

IG. 10).

Connect another length of atomizing air line (D) from the safety valve outlet port to the gun (G) air inlet.

Install AFS#2 here (if used).

105

103

TI13350a

102

5. See F

IG. 3 for the ProMix 2KS or FIG. 4 for the Pro-

Mix 2KE. Install an appropriate air inlet fitting (L) into the bulkhead fitting (105). The air inlet fitting must be 1/4 npt(m) on the bulkhead end. The other end must be sized to mate with your main air supply line.

102

104

105

Install Air Flow Switch on Back of Fluid Station Panel

User supplied air inlet fitting (L) must be 1/4 npt(m) to mate with bulkhead fitting (105).

Route AFS wires through this strain relief (K) to Fluid Station Control Board.

Connect AFS#1 wires to J1 pins 1 and 2 on Fluid Station Control Board.

Connect AFS#2 wires to J1 pins 3 and 4 on Fluid Station Control Board.

Back View of Fluid Station Panel

2 3

AFS Wire Connections at

Fluid Station Control Board

TI15099a

TI13347a

IG. 3: Installing the Air Flow Switch on a ProMix 2KS

312784D 7

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