Graco DC12 Manual

Operation – Setup
PROVEN QUALITY, LEADING TECHNOLOGY.
DC12
High-Volume Metering System 312767B
For dispensing 2 component high viscosity Epoxy Adhesive or Tooling Paste
materials.
100 psi (0.7 Mpa, 7 bar) Maximum Air Inlet Pressure
2500 psi (17.2 Mpa, 172 bar) Maximum Working Pressure
Not designed for use in Explosive Atmospheres.
Important Safety Instructions
Read all warnings and instructions in this and
all supplied manuals. Save these instructions.
See page 3 for product configuration information

Table of Contents
2312767B
Product Configurator ………………………….. 3
Accessories …..………………………….. 4
Supplied / Related Manuals .……………………5
Warnings ………………………………………….. 6
Component Identification ….………………….. 8
Electrically Controlled ……………………8
Automatic Dispense Valve ………………8
Swivel Boom …………………………….. 8
Optional Ratio Monitoring ……………… 8
Base Purge ……………………………… 8
Pneumatically Controlled ………………. 9
Manual Dispense Valve ………………… 9
Solvent Flush ……………………………..9
Performance Monitor Plus ……………………. 10
Human Machine Interface ……………... 10
Operator (HMI) Screens……………….. 10
Main Menu ………………………………. 10
Setup …………………………………….. 11
Supply Pumps …………………………… 12
Dispense Setup ……………………….… 14
Purge Settings ………………………….. 16
Run Mode ……………………………….. 18
Status ……………………………………. 20
Alarm History ……………………………. 21
Pressure Status ………………………… 22
Material Processed …………………….. 23
Technician (HMI) Screens …………….. 24
Supply Setup ……………………………. 25
Shot Meter Setup ……………………….. 26
Data Logs …………………………………27
Pressure Setup ………………………….. 28
Ratio Monitor Package …………………………. 29
Component Identification ………………. 29
Ratio Setup Screen …………………….. 30
Pneumatic Performance Monitor …………….. 31
Pneumatic Dispense Valve Control ………….. 32
Setup ………………………………………………. 33
Location ………………………………….. 33
Boom Installation ……………………….. 34
Electrical Requirements …………………36
Start-Up …………………………………………….37
Loading Material ………………………… 38
Priming System …………………………………. 39
Performance Monitor Plus Control ……. 39
Pneumatic Dispense Valve Control …… 40
Manual Control ………………………….. 41
Pressure Monitor Setup ……………………….. 43
Performance Monitor Plus ………………43
Pneumatic Monitor Pneumatic ………….44
Operation …………………………………………. 47
Performance Monitor Plus ……………... 49
Pneumatic Dispense Valve Control …… 50
Manual Control ………………………….. 50
Ratio Check – Performance Monitor Plus …...51
Ratio Check – Pneumatic DV Control ………..52
Ratio Check – Manual Control ………………… 52
Drum Change …………………………………….53
Performance Monitor Plus ………………54
Pneumatic DV Control ………………….. 54
Manual Control ………………………….. 54
Pressure Relief ……………………………………55
Performance Monitor Plus ………………55
Pneumatic DV Control ………………….. 56
Manual Control ………………………….. 56
Mixer Flush ……………………………………….. 57
Base Purge ………………………………. 57
Solvent Flush ……………………………. 58
Maintenance ……………………………………… 60
Troubleshooting ………………………………….61
Supply System ……………………………61
Shot Meter ……………………………….. 61
Performance Monitor Plus Alarms …….. 64
Technical Data…………………………………….68
Dimensions ………………………………………..69
Graco Standard Warranty ……………………… 70
Graco Information ………………………………..70

Product Configurator
3312767B
DC12 - 1 - 1 - 1 - 1 - 2 - 1
Code: A B C D E F
Ratio and Supply Pumps
Dispense Valve, Ratio
Check, and Mounting
Controls
Flow Meters and Hoses
Mixer Flush
Recommended Spares
DC12 - - - - - -
Code: A B C D E F
The Following table applies to the DC12 configurations and indicates all of the options available
for each letter shown above.
Code A Ratio and Supply Pumps Code D Flow Meters and Hoses
1 2:1 with A1 and B1 NXT Pumps 1 2:1 Flow Meter Package for Swivel Boom
2 1:1 with A1 and B1 NXT Pumps 2 1:1 Flow Meter Package for Swivel Boom
3 2:1 No Supply Pumps 3 2:1 Flow Meter Package for Fixed Mixer
4 1:1 No Supply Pumps 4 1:1 Flow Meter Package for Fixed Mixer
5 2:1 with A1, A2 and B1 NXT Pumps 5 2:1 No Flow Meters for Swivel Boom
6 1:1 with A1, A2, B1 and B2 NXT Pumps 6 1:1 No Flow Meters for Swivel Boom
Code B Dispense Valve, Ratio Check, and
Mounting 7 2:1 No Flow Meters for Fixed Mixer
1 Auto Disp. Valve and Auto Ratio
with Swivel Boom 8 1:1 No Flow Meters for Fixed Mixer
2 Auto Disp. Valve and Auto Ratio
with Fixed Mixer Code E Mixer Flush
3 Auto Disp. Valve and Manual Ratio
with Fixed Mixer 1 Solvent Pump and Hardware for Fixed Mixer
4 Manual Disp. Valve and Manual Ratio with Fixed Mixer 2 Solvent Pump and Hardware for Swivel Boom
Code C Controls 3 Solvent Hardware for Fixed Mixer
1 Performance Monitor Plus 240V, 1PH,
50-60 HZ 4 Solvent Hardware for Swivel Boom
2 Performance Monitor Plus 120V, 1PH,
50-60 HZ 5 Auto Base Purge for Fixed Mixer
3 Pneumatic Performance Monitor,
Auto Disp. Valve 6 Auto Base Purge for Swivel Boom
4 Pneumatic Performance Monitor,
Manual Disp. Valve 7 Manual Base Purge for Fixed Mixer
5 Pneumatic Auto Disp. Valve, No Monitor Code F Recommended Spares
6 No Controls for Manual DV only 1 2:1 Recommended Spares Kit
2 1:1 Recommended Spares Kit
3 2:1 Recommended Spares Kit Tandem
4 1:1 Recommended Spares Kit Tandem
N None

DC12 Accessories
4312767B
Ram Supply Pump Kits
255513 KIT,COMPLETE SEAL, L250CS (55:1 PUMP)
255509 KIT,COMPLETE SEAL, L200CS (36:1 PUMP)
255517 KIT,COMPLETE SEAL, L500CS (14:1 PUMP)
255615 KIT,BLEEDVALVE, ALL CARBON
94/0432-2/50 VALVE,CHECK,1""NPT,F,MS
Shot Meter Components
C23136 RATIO CYLINDER #1000
C23200 RATIO CYLINDER #500
C24166 KIT,REPAIR,RATIO CYLINDER
C05032 PACKING,CUP, PISTON #1000 (2 REQ'D)
C23350 PACKING,CUP, PISTON #1500 (2 REQ'D)
C07067 KIT,REPAIR,4 WAY VALVE
Dispense Valve and Mixer Components
15T682 MANIFOLD,MIX,OUTLET
15T683 MANIFOLD,MIX,INLET
918540 KIT,REPAIR,3/4 BALL SEAT
918538 KIT,REPAIR,1/2 BALL SEAT
60/0008-A/98 MIXER,ASSY,1""X12EL ( 2 Per Assembly)
U70010 COUPLING,1",SS
107078 PACKING,O-RING,TEF (2 Required)

Manuals
5312767B
Supplied Manuals
The following manuals will be supplied
with the DC12. DC12 Operation
Refer to these documents for detailed
machine information. Part Description
312767 Manual, Operation DC12
DC12 Repair
Part Description
312896 Manual, Repair DC12
Related Manuals
The following manuals are for standard
components used on the DC12 Dispense Valve, DC12
Part Description
310551 Manual,3/4 Ball Seat Applicator
310550 Manual,1/2 Ball Seat Applicator
Supply Systems
Part
Description
312371 Supply System Operation Manual
312373 Supply System Repair-Parts Manual
312468 200 cc Pump Lower
312469 250 cc Pump Lower
312470 500 cc Pump Lower
Tandem Supply System
Part Description
312897 Operation and Maintenance

Warnings
6312767B
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 when applicable.
WARNING
ELECTRIC SHOCK HAZARD
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.
• Connect only to grounded power source.
• Do not expose to rain. Store indoors.
• All electrical wiring must be done by qualified electrician and comply with all local codes and
regulations.
SKIN INJECTION HAZARD
High-pressure fluid from dispense valve, 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 dispense valve at anyone or at any part of the body.
• Do not put your hand over the end of the dispense nozzle.
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Follow Pressure Relief Procedure in this manual, when you stop spraying 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.
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 and clean 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 lights on or off when flammable fumes are present.
• Ground equipment, personnel, object being sprayed, and conductive objects in work area. See
Grounding instructions.
• Use only Graco grounded hoses.
• Check gun resistance daily.
• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment
until you identify and correct the problem.
• Do not flush with gun electrostatics on. Do not turn on electrostatics until all solvent is removed from
system.
• Keep a working fire extinguisher in the work area.

Warnings
7312767B
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 manu-
facturer’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.
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

Component Identification
8312767B
Typical Installation
Lift Locations
Fig. 1
Main System Parts List
Ref Description Ref Description
1 Base Frame 6 Static Mixer
2 A Supply System 7 Performance Monitor Plus
3 B Supply System 8 Swivel Boom
4 Shot Meter 9 Automatic Base Purge
5 Automatic Dispense Valve 10 Ratio Monitor Option

Component Identification
9312767B
Fig. 2
Main System Parts List
Ref Description Ref Description
1 Pneumatic Performance Monitor 4 Fixed Manual Dispense Valve
2 Pneumatic Dispense Valve Control 5 Solvent Hardware
3 Fixed Automatic Dispense Valve 6 Solvent Pump

Performance Monitor Plus
10 312767B
Human Machine Interface (HMI) Screens
Performance Monitor Plus includes an electric monitoring package with HMI and pendant station. The following
pages detail the included features. See product configurator code C. Performance Monitor Plus is 1 of 4 control choices.
Operator Level Screens
Main Menu Screen
Fig. 3
Key Description Key Description
Login Login Button Run Mode Screen Access Button
Logout Logout Button Alarm History Screen Access Button
Setup Screen Access Button Status Screen Access Button
Supply Pumps Screen Access Button Tech Screen Access Button