Graco Check-Mate 800 User manual

Instructions-Parts

Check-Mate® 800

Displacement Pump

334127A

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

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.

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

Key:

A Displacement Pump

BWetcup

CThroat Packing

DOutlet Housing

EFluid Outlet

FBleedValve

Cylinder

H Intake Housing

JIntake Cylinder

KPrimingPiston

6334127A

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

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

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

Torque to 225 ± 10 ft-lb (305 ± 14 N•m).

Torque to 150 ± 30 ft-lb (203 ± 41 N•m).

Lips of u-cup packing must face down.

10 334127A

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