Graco 312793H User Manual

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Repair/Parts

Merkur

™

Bellows

312793H

Displacement Pump

For pumping isocyanates, UV coatings, and other moisture-sensitive materials. For professional use only.

See page 6 for model information, including maximum working pressures.

Important Safety Instructions

Read all warnings and instructions in this manual. For complete warnings and instructions see your pump or package manual. Hazard symbols refer to specific procedure risks. Save these instructions.

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Related Manuals

Contents

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

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

Important Two-Component Material Information . 5

Isocyanate Conditions . . . . . . . . . . . . . . . . . . . . . 5

Material Self-ignition . . . . . . . . . . . . . . . . . . . . . . 5

Keep Components A and B Separate . . . . . . . . . 5

Moisture Sensitivity of Isocyanates . . . . . . . . . . . 5

Changing Materials . . . . . . . . . . . . . . . . . . . . . . . 5

Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Component Identification . . . . . . . . . . . . . . . . . . . . 7

Related Manuals

Manual Description

312795 Merkur Bellows Pump Assembly

312796

312799 Merkur Bellows Spray Packages, AA and

312798 Merkur Electrostatic Spray Packages

™

NXT

Airless

Air Motor

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

General Information . . . . . . . . . . . . . . . . . . . . . . . 8

Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Replace the Bellows . . . . . . . . . . . . . . . . . . . . . . 9

Complete Pump Repair . . . . . . . . . . . . . . . . . . . 11

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Repair Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Optional Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 24

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 24

2 312793H

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

WARNINGWARNINGWARNING

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 spray without tip guard and trigger guard installed.

• Engage trigger lock when not spraying.

• 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.

• Follow the Pressure Relief Procedure when you stop spraying 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.

312793H 3

Warnings

WARNING

WARNINGWARNINGWARNING

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.

• 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, 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.

SUCTION HAZARD

Powerful suction could cause serious injury.

• Never place hands near the pump fluid inlet when pump is operating or pressurized.

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.

• Always wear chemically impermeable gloves when spraying, dispensing, 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, hearing loss, inhalation of toxic fumes, and burns. This 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.

4 312793H

Important Two-Component Material Information

Isocyanate Conditions

Spraying or dispensing materials containing isocyanates creates potentially harmful mists, vapors, and atomized particulates.

Read material manufacturer’s warnings and material MSDS to know specific hazards and precautions related to isocyanates.

Prevent inhalation of isocyanate mists, vapors, and atomized particulates by providing sufficient ventilation in the work area. If sufficient ventilation is not available, a supplied-air respirator is required for everyone in the work area.

To prevent contact with isocyanates, appropriate personal protective equipment, including chemically impermeable gloves, boots, aprons, and goggles, is also required for everyone in the work area.

Material Self-ignition

Some materials may become self-igniting if applied too thickly. Read material manufacturer’s warnings and material MSDS.

Moisture Sensitivity of Isocyanates

Isocyanates (ISO) are catalysts used in two component coatings. ISO will react with moisture (such as humidity) to form small, hard, abrasive crystals, which become suspended in the fluid. Eventually a film will form on the surface and the ISO will begin to gel, increasing in viscosity. If used, this partially cured ISO will reduce performance and the life of all wetted parts.

NOTE: The amount of film formation and rate of crystallization varies depending on the blend of ISO, the humidity, and the temperature.

To prevent exposing ISO to moisture:

• Always use a sealed container with a desiccant dryer in the vent, or a nitrogen atmosphere. Never store ISO in an open container.

• Use moisture-proof hoses specifically designed for ISO, such as those supplied with your system.

• Never use reclaimed solvents, which may contain moisture. Always keep solvent containers closed when not in use.

• Never use solvent on one side if it has been contaminated from the other side.

• Always lubricate threaded parts with ISO pump oil or grease when reassembling.

Changing Materials

Keep Components A and B Separate

Cross-contamination can result in cured material in fluid lines which could cause serious injury or damage equipment. To prevent cross-contamination of the equipment’s wetted parts, never interchange component A (isocyanate) and component B (resin) parts.

312793H 5

• When changing materials, flush the equipment multiple times to ensure it is thoroughly clean.

• Always clean the fluid inlet strainers after flushing.

• Check with your material manufacturer for chemical compatibility.

Most materials use ISO on the A side, but some use ISO on the B side.

Models

Check your displacement pump’s identification marking (ID) for the 6-digit part number. Use the following matrix to define the construction of your displacement pump, based on the six digits. For example, displacement pump Part No. LB100A represents a 303 stainless steel bellows style displacement pump, 100 cc, with 3 UHMWPE and 2 PTFE v-packings.

To order replacement parts, see Parts section starting on page 16. The digits in the matrix do not correspond to the reference numbers in the Parts drawings and lists.

L B 100 A

Third, Fourth, and Fifth

Digits

(Displacement Pump First Digit

Second Digit

(Material)

Volume Per Cycle in

cc)

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Sixth Digit

(Packings/Seals)

(Lower)

Part Number Series

LB050A LB050B

LB100A LB100B

LB150A LB150B

Bellows Style

A 4500 (33.1, 310 3/4 in. npt 3/8 in. npt

A 3600 (24.8, 248) 3/4 in. npt 3/8 in. npt

A 2400 (16.5, 165) 1 in. npt 3/4 in. npt

050 A

100 B

150

Maximum Working

Pressure

psi (MPa, bar)

V-Packings (3 UHMWPE, 2 PTFE)

U-Cup Seal

Fluid Inlet Fluid Outlet

6 312793H

Component Identification

E F

FIG. 1. Component Identification

Key:

A Connecting Rod B Top Cap C Pump Fluid Inlet D Bellows Chamber E Packing Nut F Cylinder G Pump Fluid Outlet H Pump Adapter J Foot Cap

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312793H 7

Repair

General Information

NOTE: Reference numbers and letters in parentheses

in the text refer to the callouts in the figures.

Always use Genuine Graco Parts and Accessories, available from your Graco distributor. If you supply your own accessories, be sure they are adequately sized and pressure rated for your system.

Preparation

Follow all warnings and instructions in your pump manual for the following preliminary steps:

1. Flush the equipment.

2. Stop the pump close to the middle of the stroke.

3. Relieve the pressure.

4. Disconnect the air and fluid hoses and the ground wire.

6. Use a 5 mm hex wrench to loosen the screws (10) on the top cap.

7. Hold the coupling nut with a wrench. Use another wrench to turn the motor shaft. To avoid damage to the top cap and the D-shaped seal, do not

turn the coupling nut.

8. Lower the coupling nut and remove the coupling collars.

FIG. 2. Remove coupling collars.

9. Push up the motor shaft. Remove the coupling nut.

hold

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turn

5. Remove the shield.

NOTE: If the overflow chamber (optional accessory) contains fluid, unscrew the bottle (103) and discard. See F

. 4. If it has not been used, the bottle can remain

attached to the cap.

To avoid the buildup of electrostatic charge, do not rub the plastic bottle with a dry cloth while it is attached to the pump. Remove the bottle to clean, if needed.

10. Cart Mount: Tilt the cart onto its back to service the displacement pump.

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FIG. 3. Tilt pump for repair.

8 312793H

Repair

Replace the Bellows

Disassemble Bellows and Chamber

NOTICE

To avoid damage to the top cap and D-shaped seal, never apply torque to the connecting rod.

1. Follow all steps under Preparation, page 8.

2. Use a 5 mm hex wrench to remove the three screws (10), then remove the shield mount spacer (9) and the top cap (8). Remove and discard the bellows chamber o-ring (12).

3. Leave the overflow chamber attached to the top cap unless it needs to be replaced.

4. If replacing overflow chamber: Unscrew the bottle (103) if not already removed, then remove the lid (101) from the fitting (104). Discard the cup and lid. Use a socket to remove the retaining nut (105) in the top cap (8). Remove and discard the D-shaped seal (106). Leave the fitting (104) attached to the top cap (8) unless it needs to be replaced.

5. Use a socket to remove the foot cap (42). Remove and discard the o-ring (41).

6. Hold the hex on the connecting rod (14) with a 19 mm (3/4 in.) wrench. Brace against tie rod or bench so it cannot turn. Use a socket to loosen the piston/rod assembly.

turn

hold

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FIG. 5. Hold connecting rod steady.

7. See F

. 6. Pull the connecting rod (14) and bellows (7) out of the top of the bellows chamber (1). Leave the bellows chamber (1) attached to the packing nut.

8. Remove the bellows bushing (6) and the damaged bellows (7).

105 106

FIG. 4. Overflow chamber

104

9. Remove the snap bushing (3). Remove and discard the o-rings (4, 5).

101

102

103

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312793H 9

Repair

Reassemble Bellows and Chamber

1. Slide the bellows bushing (6) and new bellows (7) on the connecting rod (14).

2. Install new o-rings (4 and 5) into snap bushing. Grease and install snap bushing (3) on end of bellows and snap into place.

3. Put the bellows o-ring (12) loosely around the bellows (7). Push the connecting rod (14), with fully assembled bellows (7) into the bellows chamber (1). Hand tighten the connecting rod.

4. Hold the hex on the connecting rod (14) and use a torque wrench to turn the piston (45). Torque to 74-86 ft-lb (100-117 N•m).

5. Make sure the o-ring (12) is against the top of the bellows. Push the connecting rod (14) and bellows (7) snugly into the bellows chamber (1).

6. Set top cap (8) on the connecting rod (14). Do not tighten.

7. If Replacing Overflow Chamber: Order Kit 24E298. (See page 21.) Install the new D-shaped

seal (106) on the connecting rod (14). Hold connecting rod with 19 mm (3/4 in.) wrench. Install and tighten the retaining nut (105). Torque to 100-120 in-lb (11-14 N•m). Do not overtighten.

8. Install a new foot cap o-ring (41). Grease and install the foot cap (42). Torque to 54-66 ft-lb (73-89 N•m).

9. Push up on the motor shaft. Slide on the coupling nut (55). Install the coupling collars (56).

10. Hold connecting rod with 19 mm (3/4 in.) wrench. Install and tighten the coupling nut. Torque to 75-80 ft-lb (138-146 N•m).

11. If Replacing Overflow Chamber: Insert the o-ring (102) into the lid (101). Tighten the new bottle (103) with lid (101) attached, to the fitting (104).

12. Turn connecting rod (14) to align holes in top cap (8) with holes on bellows chamber (1) so the D-flat in the top cap faces the front of the pump. Reattach the top cap (8) and shield mount spacer (9). Torque screws (10) to 100-120 in-lb (11-14 N•m).

Apply grease.

Apply thread lubricant.

Torque to 100-120 in-lb (11-14 N•m).

Torque to 54-66 ft-lb (73-89 N•m).

Torque to 74-86 ft-lb (100-117 N•m).

FIG. 6. Replace bellows.

2 4

2 5

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10 312793H

Repair

Complete Pump Repair

Disassembly

1. Follow all steps under Preparation, page 8.

2. Use a socket to remove the foot cap (42). Remove and discard the o-ring (41).

3. Use a 5 mm hex wrench to loosen the three screws (10) on the top cap. Lift the air motor shaft to remove the top cap (8) and the shield mount spacer (9) from the bellows chamber.

4. Hold the hex on the connecting rod (14) with a 19 mm (3/4 in.) wrench so it cannot turn. Use a socket to loosen the piston/rod assembly. See F

5. Pull the piston/rod assembly out of the bottom of the cylinder (27).

6. V-Packing Models: Remove the piston packings (37, 39), glands (38, 40), and spring (35). See F 14, page 14.

7. U-Cup Models: Remove the bearing (52), u-cup (53), and washer (54). See F

. 13, page 13.

8. Models with overflow chamber: If overflow chamber needs to be replaced, see Replace the Bel- lows, page 9. If overflow chamber is fine, leave it attached to the top cap.

. 5.

12. V-Packing Models: Remove the glands (23, 26), throat packings (24, 25), and spring (22). See F

10, page 12.

13. U-Cup Models: Use an o-ring pick or pliers to remove the spring clip (51), the u-cup (50), and the bearing (49). F

. 11, page 13.

14. Remove and discard the packing nut top o-ring (2) and bottom o-ring (21).

15. Put the hex of the piston rod (31) in a vise. Use a 1/2 in. hex wrench to remove the flow-through nut (44) from the bottom of the piston (45).

16. Remove the o-ring (32) and seat (46). Remove from vise and tip out the check ball (47).

1/2 in. hex

Apply lubricant.

Torque to 74-86 ft-lb (100-117 N•m).

9. Remove the connecting rod (14) and bellows (7).

10. Use a 5 mm allen wrench to remove the three screws (17) and washers (18), then remove the bellows chamber (1). Remove and discard the bellows

FIG. 7. Outlet check.

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chamber o-ring (12).

11. Use a 54 mm (2 1/8 in.) socket wrench to remove the packing nut (20).

312793H 11

Repair

17. Put the hex of the piston (45) in a vise, then use a 23 mm socket to remove the piston rod (31).

18. Remove the piston o-ring (32) and seat (33). Remove from vise and tip out the check ball (34) and spring (36).

Apply grease.

Apply thread lubricant.

Torque to 91-109 ft-lb (123-148 N•m).

2 3

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FIG. 8. Piston check.

19. If the bellows is damaged, see Replace the Bellows, page 9. If not, leave the bellows attached to

the connecting rod.

2. Install check ball (34) and seat (33) in the top of the piston. Grease and install new o-ring (32).

3. With hex of piston (45) still in vise, apply thread lubricant and then use a socket to reattach the displacement rod (31). Torque to 91-109 ft-lb (123-148 N•m).

4. Clamp the hex of piston rod in vise. Install new check ball (47) and seat (46) in the bottom of the piston. Grease and install new o-ring (32).

5. Grease and reinstall the flow-through nut (44). Torque to 74-86 ft-lb (100-117 N•m).

6. Place the packing nut (20) upside down on the bench so packings will align properly.

V-Packing Models: Lubricate and install the female gland (26), new v-packings, 24, 25) and the male gland (23) in the packing nut. Lips must face up,

so they will face toward the cylinder when the packing nut is installed. Push packings all the way

in.

Reassembly

1. Clamp the hex of the piston (45) in a vise. Install new spring (36) on the ball stop.

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FIG. 9. Ball stop spring

Apply lubricant.

Lips face up (toward cylinder when installed).

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FIG. 10. Throat v-packings

U-Cup Models: Lubricate and install the bearing

(49), the u-cup packing (50), and the spring clip (51). U-cup must face up, so it will face toward

the cylinder when the packing nut is installed.

12 312793H

Apply grease.

U-cup faces up (toward cylinder when installed).

Repair

11. V-Packing Models: Install new piston spring (35). Lubricate and install male gland (40), new piston packings (37, 39), and female gland (38) on the dis-

placement rod (31). Lips must face toward the

cylinder.

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FIG. 11. U-Cup throat seal

7. Install the top o-ring (2) and the bottom o-ring (21) on the packing nut (20).

8. V-Packing Models: Install the spring (22) in the top of the cylinder (27).

9. Grease and reattach the packing nut (20). Torque to 54-66 ft-lb (73-89 N•m).

10. Use screws (17) and washers (18) to reattach the bellows chamber (1). Align the screws so the inlet fitting does not interfere with the tie rods. Torque screws (17) to 100-120 in-lb (11-14 N•m).

Apply grease.

12. U-Cup Models: Lubricate and install the washer (54), u-cup (53), and bearing (52). U-cup must face

toward the cylinder.

Apply lubricant.

Lips face toward cylinder.

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FIG. 13. U-Cup piston seal

Apply thread lubricant.

Torque to 100-120 in-lb (11-14 N•m).

Torque to 54-66 ft-lb (73-89 N•m).

2 4

18 (x 3) 17 (x 3)

FIG. 12. Bellows chamber and packing nut.

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312793H 13

Repair

Apply grease.

Apply thread lubricant.

Torque to 100-120 in-lb (11-14 N•m).

Torque to 91-109 ft-lb (123-148 N•m).

Lips face toward cylinder.

FIG. 14. Piston v-packings

2 4

ti14535a

13. Grease the outside of the displacement rod shaft and the piston, near the hexes. Push the rod and the piston into the cylinder (27).

14. If Replacing Bellows: Follow steps 1 and 2 under Reassemble Bellows and Chamber, page 10, to put new bellows on connecting rod.

15. See F

. 6, page 10. Put the bellows o-ring (12) loosely around the bellows (7). Push the connecting rod (14), with fully assembled bellows (7) into the bellows chamber (1). Hand tighten the connecting rod.

16. Hold the hex on the connecting rod (14) and use a torque wrench to turn the piston (45). Torque to 74-86 ft-lb (100-117 N•m).

17. Set top cap (8) on the connecting rod (14). Do not tighten.

18. If Replacing Overflow Chamber: Order Kit 24E298. (See page 21.) Install the new D-shaped seal (106) on the connecting rod (14). Hold connecting rod with 19 mm (3/4 in.) wrench. Install and tighten the retaining nut (105). Torque to 100-120 in-lb (11-14 N•m). Do not overtighten.

20. Push up on the motor shaft. Slide on the coupling nut (55). Install the coupling collars (56).

21. Hold air motor shaft. Install and tighten the coupling nut. Torque to 75-80 ft-lb (138-146 N•m).

22. If Replacing Overflow Chamber: Insert the o-ring (102) into the lid (101). Tighten the new bottle (103) with lid (101) attached, to the fitting (104).

23. Turn connecting rod (14) to align holes in top cap (8) with holes on bellows chamber (1). Reattach the top cap (8) and shield mount spacer (9). Torque screws (10) to 100-120 in-lb (11-14 N•m).

NOTE: The overflow chamber fits best if the D flat is aligned to the front of the pump.

Inlet or Outlet Fitting Repair

Remove and replace the inlet or outlet fitting only if damaged. Replace one or both o-rings if a leak or seepage is present and every time a fitting is removed. To reassemble, grease the o-ring and apply high-strength thread locker to the fitting. Torque to 54-66 ft-lb (73-89 N•m).

19. Install a new foot cap o-ring (41). Grease and install the foot cap (42). Torque to 54-66 ft-lb (73-89 N•m).

14 312793H

Repair

312793H 15

Parts

Models with V-Packings

Lips face

down.

34 36

24 25

45 24 25

24 23

5 3

Apply grease.

Lips

face up.

ti15222a

Apply thread lubricant.

Torque to 100-120 in-lb (11-14 N•m).

Torque to 54-66 ft-lb (73-89 N•m).

Torque to 74-86 ft-lb (100-117 N•m).

Torque to 91-109 ft-lb (123-148 N•m).

16 312793H

Models with V-Packings

NOTE: Many parts are available in one or more Service/Repair kits. See page 20.

Ref Description Part Qty

1 BELLOWS CHAMBER KIT (includes 2,

12, 15, 17, 18, 21, 32, and 41)

LBO50A 24E758

LB100A and LB150A 24E759 2 O-RING, packing nut, top 113082 1 3 BUSHING, snap ----- 1 4 O-RING, snap bushing 110135 1 5 O-RING, snap bushing C20182 1 6 BUSHING, bellows ----- 1 7 BELLOWS KIT (includes 2, 4, 5, 12, 21,

32, and 41)

LB050A 24A267

LB100A and LB150A 24E764 8 TOP CAP KIT (includes 9, 10, and 12) 24A271 1 9 SPACER, shield mount ----- 1 10 SCREW, M6 x 40;

see Hardware Kit,

117030 3

page 20

12 O-RING, bellows chamber 116377 1 14 CONNECTING ROD KIT (includes 4, 5,

12, 32, and 41)

15 INLET FITTING KIT 1

LB050A and LB100A,

3/4-14 npt x 1 3/16-16 un

LB150A

1-11.5 npt x 1 3/16-16 un 17 SCREW, bellows chamber, M6 x 25,

24E762 1

24A842

24E711

117029 3

see Hardware Kit, page 20

18 WASHER, bellows chamber;

117018 3

see Hardware Kit, page 20

19 OUTLET FITTING KIT (includes 48) 1

LB050A and LB100A,

3/8-18 npt x 3/4-16 un

LB150A, 3/4-14 npt x 1 3/16-16 un 24A842 20 PACKING NUT KIT (includes 2, 12, 21,

32, and 41)

LB050A 24F837

LB100A 24F223

LB150A 24F224 21 O-RING, packing nut, bottom 1

LB050A 107078

LB100A 104537

LB150A 110492 22 SPRING ----- 1 23 GLAND, male ----- 1 24 V-PACKING, UHMWPE ----- 3 25 V-PACKING, PTFE ----- 2 26 GLAND, female ----- 1

24A840

Ref Description Part Qty

27 CYLINDER KIT (includes 2, 12, 19, 21,

32, 41, and 48)

LB050A 24A828 LB100A 24A829

LB150A 24A830 28 ADAPTER, pump ----- 1 29 JAM NUT 1

LB050A 24A635

LB100A 24A637

LB150A 24A639 31 DISPLACEMENT ROD KIT (includes 2,

12, 21, 32, and 41)

LB050A 24F492

LB100A 24F296

LB150A 24F295 32 O-RING, piston ----- 2 33 SEAT, tungsten carbide ----- 1 34 CHECK BALL, stainless steel 1

LB050A 101947

LB100A and LB150A 107203 35 SPRING ----- 1 36 SPRING, ball stop ----- 1 37 V-PACKING, UHMWPE ----- 3 38 GLAND, female ----- 1 39 V-PACKING, PTFE ----- 2 40 GLAND, male ----- 1 41 O-RING, foot cap ----- 1 42 FOOT CAP KIT (includes 41) 1

LB050A 24A831

LB100A 24A832

LB150A 24A833 44 FLOW-THROUGH NUT ----- 1 45 PISTON KIT (includes 2, 12, 21, 32, and

41) LB050A 24F488 LB100A 24F489 LB150A 24F490

46 SEAT, tungsten carbide ----- 1 47 CHECK BALL, stainless steel 1

LB050A 101947 LB100A and LB150A 101859

48 O-RING, outlet fitting, not shown ----- 1 55 NUT, coupling 15T311 1 56 COLLARS, coupling;

pack of 10

NOTE: Replacement Danger and Warning labels, tags, and cards are available at no cost.

see page 20 for

Parts

184128 2

--- Parts not sold separately. See pages 20-21for available kits.

312793H 17

Parts

Models with U-Cup Packings

U-cup

faces

down.

33 34 36

47 46

U-cup faces up.

17 18

Apply grease.

Apply thread lubricant.

Torque to 100-120 in-lb (11-14 N•m).

Torque to 54-66 ft-lb (73-89 N•m).

Torque to 74-86 ft-lb (100-117 N•m).

Torque to 91-109 ft-lb (123-148 N•m).

ti15261a

18 312793H

Models with U-Cup Packings

NOTE: Many parts are available in one or more Service/Repair kits. See page 20.

Parts

Part

Ref. Description

1 BELLOWS CHAMBER KIT (includes 2,

12, 15, 17, 18, 21, 32, and 41)

LBO50B 24E758

LB100B and LB150B 24E759 2 O-RING, packing nut, top 113082 1 3 BUSHING, snap ----- 1 4 O-RING, snap bushing 110135 1 5 O-RING, snap bushing C20182 1 6 BUSHING, bellows ----- 1 7 BELLOWS KIT (includes 2, 4, 5, 12, 21,

32, and 41)

LB050B 24A267

LB100B and LB150B 24E764 8 TOP CAP KIT (includes 9, 10, and 12) 24A271 1 9 SPACER, shield mount ----- 1 10 SCREW, M6 x 40;

see Hardware Kit,

Number Qty

117030 3

page 20

12 O-RING, bellows chamber 116377 1 14 CONNECTING ROD KIT (includes 4, 5,

12, 32, and 41)

15 INLET FITTING KIT 1

LB050B and LB100B,

3/4-14 npt x 1 3/16-16 un

LB150B, 1-11.5 npt x 1 3/16-16 un 24E711 17 SCREW, bellows chamber, M6 x 25,

24E762 1

24A842

117029 3

see Hardware Kit, page 20

18 WASHER, bellows chamber;

see Hard-

117018 3

ware Kit, page 20

19 OUTLET FITTING KIT (includes 48) 1

LB050B and LB100B,

3/8-18 npt x 3/4-16 un

LB150B, 3/4-14 npt x 1 3/16-16 un 24A842 20 PACKING NUT KIT (includes 2, 12, 21,

32, and 41)

LB050B 24F837

LB100B 24F223

LB150B 24F224 21 O-RING, packing nut, bottom 1

LB050B 107078

LB100B 104537

LB150B 110492 27 CYLINDER KIT (includes 2, 12, 19, 21,

32, 41, and 48)

LB050B 24A828

LB100B 24A829

LB150B 24A830 28 ADAPTER, pump ----- 1

24A840

Part

Ref. Description

29 JAM NUT 1

31 DISPLACEMENT ROD KIT (includes 2,

32 O-RING, piston ----- 2 33 SEAT, tungsten carbide ----- 1 34 CHECK BALL, stainless steel 107203 1 36 SPRING, ball stop ----- 1 41 O-RING, foot cap 106259 1 42 FOOT CAP KIT (includes 41) 1

44 FLOW-THROUGH NUT ----- 1 45 PISTON KIT (includes 2, 12, 21, 32,

46 SEAT, tungsten carbide ----- 1 47 CHECK BALL, stainless steel 101859 1 48 O-RING, outlet fitting, not shown ----- 1 49 BEARING, throat ----- 1 50 U-CUP Packing, throat ----- 1 51 SPRING CLIP, throat ----- 1 52 BEARING, piston ----- 1 53 U-CUP Packing, piston ----- 1 54 WASHER, piston ----- 1 55 NUT, coupling 15T311 1 56 COLLARS, coupling;

LB050B 24A635 LB100B 24A637 LB150B 24A639

12, 21, 32, and 41)

LB050B 24F492 LB100B 24F296 LB150B 24F295

LB050B 24A831 LB100B 24A832 LB150B 24A833

and 41)

LB050B 24F488 LB100B 24F489 LB150B 24F490

see page 20 for

Number Qty

pack of 10

NOTE: Replacement Danger and Warning labels, tags, and cards are available at no cost.

--- Parts not sold separately. See pages 20-21 for avail-

able kits.

184128 2

312793H 19

Repair Kits

Kit Description

O-Ring Kit - Includes o-rings (2, 4, 5, 12, 16, 21, 32, 41, and 48)

V-Packing Seal Kit

Includes: springs (22, 35), glands (23, 26, 38, 40), v-packings (24, 25, 37, 39), and o-rings (2, 12, 21, 32, and 41)

U-Cup Seal Kit

Includes: throat u-cup (50), bearing (49), and spring clip (51); piston u-cup (53), bearing (52), and washer (54). Also includes o-rings (2, 12, 21, 32, and 41)

Bushing Kit

Includes: bellows bushing (6), snap bushing (3), and o-rings (2, 4, 5, 12, 16, 21, 32, and 41)

440 Stainless Steel Check Ball Kit

Includes: Check balls (34, 47), ball stop spring (36), and o-rings (2, 12, 21, 32, and 41).

Tungsten Carbide Seats and 440 Stainless Steel Balls Repair Kit

Includes seats (33, 46), check balls (34, 47), flow-through nut (44), and o-rings (2, 12, 21, 32, and 41)

Displacement Rod/Connecting Rod/Piston Kit

Includes: displacement rod (31), piston (45), nylon extrusions (not in parts list), connecting rod (14), bellows (7), snap bushing (3), bellows bushing (6), seats (33, 46), check balls (34, 47), spring (36); flow-through nut (44); coupling nut (55), coupling collars (56), and o-rings (2, 4, 5, 12, 21, 32, and 41)

Piston Kits

Includes: piston (45), nylon extrusions (not in parts list), and o-rings (2, 12, 21, 32, and 41)

Hardware Kit

Includes: three top cap screws (10); three bellows chamber screws (17) and three washers (18)

Coupling Collars Kit - Includes: 10-pack of coupling collars

LB050A LB050B

24E713 24E714 24E715

24A655 24A656 24A657

24E716 24E631 24E632

24A268 24E766 24E766

24A661 24A662 24A662

24A787 24A788 24A788

24A649 24A650 24A651

24F488 24F489 24F490

24E712 24E712 24E712

24A619 24A619 24A619

LB100A LB100B

LB150A LB150B

20 312793H

Optional Kits

Kit Description

Reinforced PTFE V-Packing Kit*

Reinforced PTFE throat packings and glands, reinforced PTFE piston packings and glands, o-rings, and springs

PTFE Bellows Kit*

Includes PTFE bellows and o-rings

316 Stainless Steel Check Ball Kit**

Includes: Check balls (34, 47), ball stop spring (36), and o-rings (2, 12, 21, 32 and 41).

316 Stainless Steel Seat and Ball Kit**

Includes: Seats (33, 46), check balls (34, 47), flow-through nut (44) and o-rings (2, 12, 21, 32, and 41).

* Use with materials that cause chemical compatibility concerns with UHMWPE, such as acid catalyst materials.

** Replaces standard kits for high corrosive applications.

LB050A LB050B

24J858 24J859 24J860

24J850 24J851 24J851

24T257 24T258 24T258

24A800 24A801 24A801

LB100A LB100B

LB150A LB150B

Accessories

Overflow Chamber Kit 24E298

Ref. Description Qty.

101 LID 1 102 O-RING 1 103 BOTTLE 1 104 FITTING, 2 x 1/4-18 npt 1 105 NUT, retaining 1 106 D-SHAPED SEAL, bellows 1

312793H 21

Dimensions

Displacement Pump Dimensions

Displacement

Pump

LB050A, LB050B

LB100A, LB100B

LB150A, LB150B

* Height measured at midstroke.

(Height*)

in. (mm)

23.6 (599) 3/4 in. 3/8 in. 26 (11)

23.6 (599) 3/4 in. 3/8 in. 30 (13)

23.6 (599) 1 in. 3/4 in. 34 (15)

(Inlet Size)

in. npt

(Outlet Size)

in. npt

Weight

lbs (kg)

ti14532a

22 312793H

Technical Data

Maximum fluid working pressure

LB050A and LB050B

LB100A and LB100B . . . . . . . . . . . . . . . . . . . . . . . . .

LB150A and LB150B . . . . . . . . . . . . . . . . . . . . . . . . .

Maximum fluid inlet pressure . . . . . . . . . . . . . . . . . . . . . . 15 psi (0.1 MPa, 1.0 bar)

Maximum fluid temperature . . . . . . . . . . . . . . . . . . . . . . . 160°F (71°C)

Ambient temperature range . . . . . . . . . . . . . . . . . . . . . . . 35°–120°F (2°–49°C)

Stroke length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 in.

Wetted parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PEEK, PTFE, stainless steel, tungsten carbide,

4500 psi (33.1 MPa, 310 bar) 3600 psi (24.8 MPa, 248 bar) 2400 psi (16.5 MPa, 165 bar)

UHMWPE

312793H 23

Graco Standard Warranty

Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written recommendations.

This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or maintenance of structures, accessories, equipment or materials not supplied by Graco.

This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.

THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.

Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy (including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.

GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to

the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these warranties.

In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the negligence of Graco, or otherwise.

FOR GRACO CANADA CUSTOMERS

The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite de ou en rapport, directement ou indirectement, avec les procédures concernées.

Graco Information

For the latest information about Graco products, visit www.graco.com. For patent information, see www.graco.com/patents.

TO PLACE AN ORDER,

Phone: 612-623-6921 or Toll Free: 1-800-328-0211 Fax: 612-378-3505

All written and visual data contained in this document reflects the latest product information available at the time of publication.

GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA

contact your Graco distributor or call to identify the nearest distributor.

Graco reserves the right to make changes at any time without notice.

Original instructions.

Graco Headquarters: Minneapolis

International Offices: Belgium, China, Japan, Korea

This manual contains English. MM 312793

www.graco.com

Revision H- April 2014

Graco 312793H User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Related Manuals

Warnings

Important Two-Component Material Information

Isocyanate Conditions

Material Self-ignition

Moisture Sensitivity of Isocyanates

Changing Materials

Keep Components A and B Separate

Models

Component Identification

Repair

General Information

Preparation

Replace the Bellows

Complete Pump Repair

Parts

Repair Kits

Optional Kits

Accessories

Dimensions

Technical Data

Graco Standard Warranty

Graco Information