Graco Check-Mate 312375J Bedienungsanleitung

With priming piston and Severe Duty®or MaxLife®rod and cylinder.

For professional use only.

Not for use in explosive atmospheres.

See page 3 for model information. See page 42 for maximum working pressure and approvals.

Important Safety Instructions

Read all warnings and instructions in this manual.

Save these instructions.

Instructions - Parts

Check-Mate®

Displacement Pumps

ti10720a

L200CS Model

ti10392a ti10396a

L500CM Model

L100CM Model

312375J

http://gracomanual.com

Related Manuals

2312375J

Contents

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

Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Component Identification . . . . . . . . . . . . . . . . . . . . 6

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Disassembly and Reassembly of Throat Packings

and Cartridge . . . . . . . . . . . . . . . . . . . . . . . . 7

Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

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

60cc Displacement Pumps . . . . . . . . . . . . . . . . 18

100cc Displacement Pumps . . . . . . . . . . . . . . . 19

200cc and 250cc Displacement Pumps . . . . . . 24

500cc Displacement Pumps . . . . . . . . . . . . . . . 34

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Outlet Housing Mounting Hole Layout . . . . . . . . 40

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 44

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . 44

Related Manuals

Component Manuals in U.S. English:

Manual Description

312376 Check-Mate®Pump Packages

Instruction-Parts

313526 Supply Units Operation

313527 Supply Units Repair-Parts

313528 Tandem Supply Units Operation

313529 Tandem Supply Units Repair-Parts

http://gracomanual.com

Models

312375J 3

Models

Check your displacement pump’s identification plate (ID) for the 6-digit part number

of your displacement pump. Use the following matrix to define the construction of

your displacement pump, based on the six digits. For example, displacement pump

Part No. L250CM represents the displacement pump (L), output volume in cc per

cycle (250), carbon steel construction (C), and MaxLife®coatings, packings, and

enclosed wet cup (M).

To order replacement parts, see Parts section starting on page 18. The digits in the

matrix do not correspond to the Ref. Nos. in the Parts drawings and lists.

ti10622a

L 250 C M

First Digit Second, Third, and Fourth

Digits Fifth Digit Sixth Digit

Displacement Pump Volume

per cycle (cc) Material

Coatings, Packings,

Enclosed Wet Cup

(displacement

pump)

60 C Carbon Steel S Severe Duty

100 S Stainless Steel M MaxLife

200

250

500

http://gracomanual.com

Warnings

4312375J

Warnings

The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama-

tion 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 where

applicable.

WARNING

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.

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.

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.

Warnings

312375J 5

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.

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.

• Use only 3-wire extension cords.

• Ensure ground prongs are intact on sprayer and extension cords.

• Do not expose to rain. Store indoors.

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

WARNING

Component Identification

6312375J

Component Identification

Key:

A Displacement Rod

BWetCup

C Throat Packing Cartridge

D Outlet Housing

E Fluid Outlet

F Pump Bleed Valve

G Pump Cylinder

H Intake Valve Housing

J Intake Cylinder

K Priming Piston Assembly

L Hex Head Bolt (500cc displacement pumps only)

M Wet Cup Sight Glass (MaxLife models only)

N Wet Cup Fill Cap (MaxLife models only)

FIG. 1

ti10720a

ti10392a ti10396a

L200CS and L250CS Models L500CM Model

L060CM and L100CM Models

Repair

312375J 7

Repair

Troubleshooting

See Check-Mate Pump Packages manual 312376.

Required Tools

• Torque wrench

• Bench vise, with soft jaws

• Rubber mallet

•Hammer

• 400 mm (15.8 in.) adjustable wrench

• O-ring pick

• Flat head screwdriver

• 13 mm (1/2 in.) dia. brass rod

• Set of socket wrenches

• Set of adjustable wrenches

• Packing nut wrench (supplied with

pump package)

• 24 in. (610 mm) adjustable wrench

• M4 hex key wrench

• Thread lubricant

• Thread sealant

•Loctite

®2760™or equivalent

Disassembly and Reassembly of

Throat Packings and Cartridge

All new Check-Mate displacement pumps are equipped

with a throat packing cartridge (3) that enables easy

removal and replacement of throat packings without the

complete disassembly of the displacement pump.

1. Run air motor and displacement pump to bottom of

stroke.

2. Relieve pressure. See Check-Mate Pump Packages

manual 312376 for instructions.

3. Remove air motor coupling assembly from displace-

ment rod. See Check-Mate Pump Packages manual

312376 for instructions.

4. Push air motor piston rod up to top of stroke.

5. Remove wet cup cover (present on enclosed wet

cups only).

6. Place an absorbent cloth in wet cup (9) to absorb

Throat Seal Liquid (TSL).

7. Use packing nut wrench (supplied) to loosen and

remove packing nut/enclosed wet cup (9).

8. Use an adjustable wrench to loosen cartridge (3);

slide it and throat packings (P) up and off displace-

ment rod (1).

9. Replace throat packings (P) according to specific

packing kit into cartridge (3). See Packing Kits in

Parts starting on page 18.

10. Remove and replace o-ring (4).

11. Slide cartridge (3) and throat packings (P) back on

to displacement rod (1). Be careful to not damage

packings.

FIG. 2

FIG. 3

ti10623a

ti11118a

(Severe Duty)

(MaxLife)

Repair

8312375J

12. Torque cartridge (3) to specified torque listed in the

following table.

13. Slide packing nut/wet cup (9) over displacement rod

(1) and torque to specified torque listed in the follow-

ing table.

14. Fill wet cup (9) 1/3 full of TSL or compatible solvent.

Disassembly

When disassembling displacement pump, lay out all

removed parts in sequence to ease reassembly. Clean

all parts with a compatible solvent and inspect them for

wear or damage.

1. Relieve pressure. See your Check-Mate Pump

Packages manual 312376 for instructions.

2. Disconnect displacement pump from air motor as

illustrated in your Check-Mate Pump Packages

manual 312376.

3. Place displacement pump in a vise, with jaws on

outlet housing (2).

4. Use packing nut wrench (supplied) to loosen and

remove packing nut/enclosed wet cup (9).

5. On displacement pumps with enclosed wet cups (9),

use an M4 hex wrench to remove the three screws

(14) from wet cup cover (10) and remove cover.

Drain and clean out the wet cup (9). See FIG. 5.

6. On displacement pumps with enclosed wet cups (9),

use o-ring pick to remove o-ring (11), and a flat

head screwdriver to remove snap ring (61), wiper

(15), and seal (16).

Displacement

Pump Torque

60cc and 100cc 90-130 ft-lbs (122-173 N•m)

200cc and 250cc 130-190 ft-lbs (176-258 N•m)

500cc 149-261 ft-lbs (203-355 N•m)

Displacement

Pump Torque

60cc and 100cc 28-44 ft-lbs (38-59 N•m)

200cc and 250cc 95-115 ft-lbs (128-155 N•m)

500cc 95-115 ft-lbs (128-155 N•m)

FIG. 4

The snap ring (61) is applicable only to 60cc and

100cc displacement pumps.

FIG. 5

ti10623a

ti10561a

Repair

312375J 9

7. Hold flats of the priming piston rod (24) with an

adjustable wrench, and use a second wrench to

unscrew priming piston seat (27) from rod. Slide

priming piston (26) off rod. Inspect surfaces of guide

(25) and piston (26) for scoring, wear, or other dam-

age.

8. Use an adjustable wrench on hex of intake cylinder

(22) to unscrew it from intake valve housing (19).

9. Use an adjustable wrench to unscrew intake valve

housing (19) from cylinder (17) and outlet housing

(2). Pull intake valve housing off cylinder. Intake

check valve assembly (R) should slide down priming

piston rod (24) as you remove housing; if it does not

slide easily, firmly tap on top of housing (19) with a

rubber mallet to loosen.

10. Use a 400 mm adjustable wrench on flats of dis-

placement pump cylinder (17) and unscrew cylinder

from outlet housing (2). Remove o-rings (18).

Inspect inside surface of cylinder for wear, scoring

or other damage by holding it up to light at an angle

or running a finger over the surface.

The guide (25) is applicable only to 100cc and

500cc displacement pumps.

FIG. 6

Steps 8-13 apply to 60cc, 100cc, 200cc, and

250cc displacement pumps only.

FIG. 7

ti10563a

ti10562a

FIG. 8

FIG. 9

r_000000_312375_1

ti10565a

ti10601a

Repair

10 312375J

11. Use an o-ring pick to remove seal (21) from intake

valve housing (19). Discard seal; use a new one for

reassembly. See FIG. 10.

12. Pull intake seat (20) out bottom of intake valve hous-

ing (19). Take care not to drop intake valve assem-

bly (R) as it comes free, and set it aside for later.

13. Use a rubber mallet to drive displacement rod (1)

and priming piston rod (24) out of outlet housing (2).

Inspect outer surfaces of rods for damage by run-

ning a finger over the surface.

14. 500cc Displacement Pumps Only: use a socket

wrench to remove six capscrews (45).

15. Tap underside of outlet housing (2) with a rubber

mallet to loosen housing from cylinder (17). Lift out-

let housing off displacement pump and set it aside.

Be careful not to scratch displacement rod (1) while

removing housing. Remove seal (18) from top of cyl-

inder.

16. Lift cylinder (17) up off intake housing (22). Dis-

placement rod (1), piston assembly, intake valve

assembly, and priming piston rod (24) will come with

cylinder.

17. Place cylinder (17) sideways in a vise with soft jaws.

Using a rubber mallet on end of priming piston rod

(24), drive displacement rod (1) and piston assem-

bly out of the top of the cylinder. Continue to pull rod

out of cylinder until priming piston rod (24) comes

free.

18. Remove seal (18) from bottom of cylinder (17). Hold

cylinder up to light at an angle to examine inside

surface for scoring and damage.

If seat (20) is difficult to remove, insert a hammer

and brass rod through the top of housing (19) and

drive seat out.

FIG. 10

FIG. 11

r_000000_312375_2

ti10568a

Steps 14-19 apply to 500cc displacement

pumps only.

FIG. 12

ti10584a

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