Graco Check-Mate 800 User manual

Instructions-Parts
Check-Mate® 800
Displacement Pump
334127A
EN
For use with hot-melt applications. For professional use only.
Important Safety Instructions
Read all warnings and instructions in this manual and in related
system manuals. Save these instructions.
Maximum Operating Temperature 400°F
(204 °C)
Maximum Fluid Working Pressure 5850
psi (40 MPa 403 bar)
PROVEN QUALITY. LEADING TECHNOLOGY.

Contents
Models............................................................... 2
Related Manuals ................................................ 2
Warnings ........................................................... 3
Component Identification..................................... 6
Installation.......................................................... 7
rounding ................................................... 7
Connect to a raco Air Motor ....................... 7
Pressure Relief Procedure .................................. 8
Pump Startup, Adjustment, and Shutdown
Instructions ........................................... 8
Repair................................................................ 9
Required Tools ............................................ 9
Disconnect the Pump ................................... 9
Replace Throat Packings.............................. 10
Replace Priming Piston ................................ 11
Replace Intake Valve ................................... 12
Repair Piston............................................... 14
Parts.................................................................. 16
Technical Specifications...................................... 20
Notes ............................................................... 21
raco Standard Warranty.................................... 22
Models
Part Drum Size Seal material
24W152 5 allon (20
Liter) Carbon Filled PTFE
24W153 5 allon (20
Liter) lass Filled PTFE
24W150 55 allon (200
Liter) Carbon Filled PTFE
24W151 55 allon (200
Liter) lass Filled PTFE
Related Manuals
Manuals are available at www.graco.com
Component manuals in English:
334128 Throat Seal Repair Kit,
Instructions-Parts
334131 Bulldog
®
and Senator
®
Air Motor Tie
Rod Kit, Instructions-Parts
334132 NXT
®
Air Motor Tie Rod Kit,
Instructions-Parts
2334127A

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 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
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. et
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.
•Followthe Pressure 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.
MOVIN 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.
• Pressurized equipment can start without warning. Before checking, moving, or servicing
equipment, follow the Pressure Relief Procedure and disconnect all power sources.
334127A 3

Warnings
WARNING
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area canigniteorexplode.Tohelp
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.
• round all equipment in the work area. See rounding 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.
BURN HAZARD
Equipment surfaces and fluid that is heated can become very hot during operation. To avoid
severe burns:
• Do not touch hot fluid or equipment.
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
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 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.
4334127A

Warnings
WARNING
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.
334127A 5

Component Identification
Component Identification
Key:
A Displacement Pump
BWetcup
CThroat Packing
DOutlet Housing
EFluid Outlet
FBleedValve
Cylinder
H Intake Housing
JIntake Cylinder
KPrimingPiston
6334127A

Installation
Installation
Grounding
The equipment must be grounded to reduce the
risk of static sparking. Static sparking can cause
fumes to ignite or explode. rounding provides an
escape wire for the electric current.
Pump: the pump is grounded with a wire connecting
the pump from the control enclosure. Locate the
small hole (W) in the pump outlet housing. Attach
the ground wire (Y) to the pump outlet housing using
the ground screw (X) supplied with your system.
Tighten the ground screw securely. Do not operate
the equipment without the ground wire in place.
Air compressor: follow manufacturer’s
recommendations.
Fluid supply container: follow your local code.
Object being dispensed to: follow your local code.
Figure 1 rounding Screw
Connect to a Graco Air Motor
The displacement pump may be installed on Senator,
Bulldog, King, and NXT raco air motors using Tie
Rod Kits. See kit manual for installation instructions.
Manual Tie Rod Kit Air Motor
334131 24V752 Bulldog
Senator
King
334132 24V754 NXT
334127A 7

Pressure Relief Procedure
Pressure Relief Procedure
Follow the Pressure Relief Procedure
whenever you see this symbol.
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
equipment.
Heated fluid can cause severe burns and can
cause equipment surfaces to become very
hot. Wear protective gloves and clothing when
operating this equipment in a heated system. Allow
the equipment to cool thoroughly before servicing.
1. Lock the gun/valve trigger safety.
2. Close all air bleed valves (required in your
system) to shut off the air supply to the pump.
3. Unlock the gun/valve trigger safety.
4. Hold a metal part of the gun/valve firmly to the
side of a grounded metal pail, and trigger the
gun/valve to relieve pressure.
5. Lock the gun/valve trigger safety.
6. Open the pump bleeder valve (required in your
system), having a container ready to catch the
drainage.
7. Leave the pump bleeder valve open until you are
ready to spray/dispense again.
If you suspect that the spray tip/nozzle or hose is
completely clogged, or that pressure has not been
fully relieved after following the steps above, very
slowly loosen the tip retaining nut or hose end
coupling and relieve pressure gradually, then loosen
completely. Now clear the tip/nozzle or hose.
Pump Startup,
Adjustment, and
Shutdown Instructions
See your separate system manual instructions.
8334127A

Repair
Repair
Required Tools
• Torque wrench
• Bench vise, with soft jaws
• Rubber mallet
•Hammer
• O-ring pick
• 13mm(1/2in.)dia.brassrod
• Set of socket wrenches
• Set of adjustable wrenches
•Pipewrench
• Screwdriver
• Heat gun
• loves
• Thread lubricant
• Thread sealant
Disconnect the Pump
Heated fluid can cause severe burns and can
cause equipment surfaces to become very
hot. Wear protective gloves and clothing when
operating this equipment in a heated system. Allow
the equipment to cool thoroughly before servicing.
Note
Theprimingpistoncanbeserviced
without disconnecting the displacement
pump from the motor. see
Replace Priming Piston, page 11.
1. Flush the pump, if possible. Stop the pump at the
bottom of its stroke, to prevent fluid from drying
on the exposed displacement rod.
2. Relieve the pressure. See
Pressure Relief Procedure, page 8 .
3. Allow the pump to cool if being used in a heated
system.
Note
It may be necessary to use a heat gun to
ease disassembly of some parts.
4. Disconnect the air and fluid hoses.
5. Disconnect the pump from the heated platen.
6. Disconnect the displacement pump from the
motor as explained in your separate system
manual.
334127A 9

Repair
Replace Throat Packings
Note
The throat packings are available as a
preassembled kit.
Pump Part No. Throat Seal Repair
Kit
24W152 24V752
24W153 24V753
24W150 24V752
24W151 24V753
1. Relieve the pressure. See
Pressure Relief Procedure, page 8 .
2. See Fig. 2. Unscrew the packing nut (2) using a
pipe wrench. Remove the o-ring (27) and washer
(26) from the bottom of the packing housing (25)
or from the outlet housing (3).
3. Place the flats of the packing nut (2) in a vise.
Unscrew the packing housing (25) and discard it
and the packings. Remove the washer (24), seal
(23), and backup washer (22) from the packing
nut.
4. The throat repair kit is preassembled. Screw the
kit into the packing nut (2), making sure that the
backup washer (22), seal (23), and washer (24)
are properly positioned on top of the packing
housing (25), with the lips of the seal facing
down. Torque the packing housing (25) to 225
±10 ft-lb (305 ± 14 N•m).
5. Before installing packing housing into pump,
generously lubricate seals with high temperature
grease supplied with repair kit.
6. If necessary, use an arbor press to install o-ring
(27) in packing housing (25).
7. Screw the packing nut (2) and packing housing
(25) into the outlet housing (3). Torque to 150 ±
30 ft-lb (203 ± 41 N•m).
Figure 2 Throat Packings
1
Torque to 225 ± 10 ft-lb (305 ± 14 N•m).
2
Torque to 150 ± 30 ft-lb (203 ± 41 N•m).
3
Lips of u-cup packing must face down.
10 334127A