Graco 24R253 User manual

Instructions - Parts

680cc Pump Lower 332649A

High performance, high output, low pressure pump lower. For professional use only.

Important Safety Instructions

Read all warnings and instructions in all manuals.

Save all instructions.

1000 psi (7 MPa, 69 bar) Maximum

Fluid Working Pressure

Model 24R2 3

Contents

Warnings ........................................................... 2

Component Identiﬁcation..................................... 4

Maintenance ...................................................... 5

Troubleshooting.................................................. 5

Repair................................................................ 6

Parts..................................................................

Technical Speciﬁcations...................................... 10

Graco Standard Warranty.................................... 12

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

FIRE AND EXPLOSION HAZARD

Flammable fumes, such as solvent and paint fumes, in

ork 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.

• Ground all equipment in the work area. See

Grounding

instructions.

• Use only grounded hoses.

• Hold applicator 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.

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.

Get

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.

2332649A

Warnings

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 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.

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.

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.

332649A 3

Component Identiﬁcation

WARNING

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.

SUCTION HAZARD

Powerful suction could cause serious injury.

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

Component Identiﬁcation

Figure 1

Key:

A Clamps; clamps include ﬂats so only one

wrench is needed to tighten/loosen

B Mounting Plate

CDisplacement Rod

DPacking Nut/Wet Cup

EFluid Outlet

FCylinder

GInlet Housing

4332649A

Maintenance

Regularly check and maintain ﬂuid level in packing

nut/wet cup (D) to 1/2 full with Throat Seal Liquid

(TSL).

Regularly inspect soft parts and replace when worn

or damaged.

Troubleshooting

1. Relieve ﬂuid pressure. See system manual for

pressure relief procedure.

2. Check all possible causes and problems before

disassembling pump.

PROBLEM — CAUSE — SOLUTION

Example:

•

Problem.

–

Cause.

♦ Solution.

•

Output lo on do n-stroke.

–

Open or worn intake valve.

♦ Clear or service intake valve.

•

Output lo on up-stroke.

–

Open or worn piston valve or packings.

♦ Clear piston valve; replace packings.

•

Erratic accelerated speed.

–

Fluid supply exhausted, clogged suction.

♦ Reﬁll ﬂuid supply container and prime pump.

–

Open or worn piston valve or packings.

♦ Clear piston valve; replace packings.

–

Open or worn intake valve.

♦ Clear or service intake valve.

•

Cycles or fails to hold pressure at stall.

–

orn check balls, seats, or piston packing.

♦ Service lower. See Repair, page 6 .

332649A 5

Repair

Suggested Tools

• 5/ in. box end wrench or 5/ in. socket and ratchet

• Rubber mallet (to break items loose, if necessary)

102

135

105

135

102

104

137

125

122

126

103

109

112

120

140

133

134

119

114

110

111

108

107

121

123

115

106

124

113

ti22049a

Figure 2

See the ﬁgure at the beginning of this section.

NOTE:

As items are disassembled, use a

soft brush and water or a compatible solvent

to clean components.

1. Perform Pressure Relief Procedure.

NOTICE

Ensure material pressure is relieved prior to

removing the ﬂuid hose from the system.

2. Remove inlet and outlet hoses from pump lower.

3. Disconnect pump lower from motor and remove

pump lower from system.

4. While holding onto the inlet housing (109), use

a5/ in. wrenchtoloosenthetwonutsonthe

inlet housing clamp (102) then remove inlet

housing assembly (109 and 103).

6332649A

Repair

NOTE:

Hold onto assembly ﬁrmly when removing

clamp. Part will disengage and fall.

5. Remove inlet ball stop (104).

6. Clean the inlet housing assembly (109 and 103),

inlet ball (125), and inlet ball stop (104).

NOTE:

The inlet housing assembly (109 and

103) is not disassembled unless the inlet seat

needs to be replaced.

7. Use5/ in.wrenchtoloosenthetwonutsonthe

cylinder clamp (102) then remove cylinder (105).

. Pull rod (111) down and out of outlet

housing (110).

9. Remove outlet ball stop (10 ) from rod (111) by

pushing o-rings off of ball stop (10 ).

10. Clean outlet ball stop (10 ), outlet ball stop

o-rings, and rod (111).

The pump rod (111) is not disassembled unless

the piston packing or seat needs to be replaced.

11. Loosen and remove packing nut (112) then

remove throat packing (114).

12. Clean the cylinder (105), two cylinder

o-rings (135), outlet housing (110), throat

packing (114), and packing nut (112).

Assemble the Pump

1. Loosely install throat packing (114) with the open

end facing into the pump with packing nut (112).

2. Install outlet ball (123), outlet ball stop (10 ) with

o-rings into rod (111). Ensure outlet ball stop

o-rings are in the grooves on the outlet ball stop

rod.

3. Gently slide rod (111) through throat

packing (114).

4. Tighten packing nut (112) until it stops.

NOTE:

This is not an adjustable packing.

5. Slide cylinder (105) over rod (111) with

o-ring (135) installed between outlet

housing (110) and cylinder (105).

6. Use cylinder clamp (102) to secure cylinder (105)

to outlet housing (110).

NOTE:

The clamp has ﬂats so that

onlyonewrenchisrequiredtotighten

clamp. Alignboltheadwithﬂatthen

use a wrench on the nut to tighten.

Tightenbothsidesoftheclampevenlyto

approximately 20–30 ft-lb (27–41 N•m).

7. Install inlet ball (125) and inlet ball stop (104) in

inlet housing (109).

. With inlet ball (125) and inlet ball stop (104) in

place, place o-ring (135) between cylinder (105)

and inlet housing (109) then use inlet housing

clamp (102) to install inlet housing (109) onto

cylinder (105).

NOTE:

The clamp has ﬂats so that

onlyonewrenchisrequiredtotighten

clamp. Alignboltheadwithﬂatthen

use a wrench on the nut to tighten.

Tightenbothsidesoftheclampevenlyto

approximately 20–30 ft-lb (27–41 N•m).

9. Connect pump lower to motor.

10. Connect inlet and outlet hoses to pump lower.

11. Add TSL to the packing nut (112) around the rod.

332649A 7

Parts

102

135

105

135

102

104

137

125

122

126

103

109

112

120

140

133

134

119

114

110

111

108

107

121

123

115

106

124

113

ti22049a

NOTE: Apply clear, liquid petrolatum to

threads, o-rings, and seals.

NOTE: Tighten lock nut (119), keeping

mounting plate (120) within +/- 0.060 inch

(1.5 mm) of being ﬂush with housing (110).

Torque to 25–35 ft-lb (34–47 N∙m).

Torque to 90–110 ft-lb (122–149 N∙m).

Apply medium strength thread-locking ﬂuid

to threads.

Assemble plate (120) within +/- 0.060 inch

(1.5 mm) of being ﬂush with housing (110),

with 1 inch npt hole in line with ﬂats on

plate (120).

Torque to 190–210 ft-lb (25 –2 5 N∙m).

Ref Part Description Qty

10216E963 CLAMP, double-

bolted, 4 inch 2

103 16U796 HOUSING, inlet 1

104 16U797 STOP, ball 1

Ref Part Description Qty

10516U79 CYLINDER, pump 1

106 16U799 VALVE, piston 1

107 16U 00 HOLDER, valve piston 1

8332649A

Parts

Ref Part Description Qty

10 16U 01 STOP, upper ball 1

109 16V143 HOUSING, inlet, 2

inch cam and groove 1

110 16U 03 HOUSING, outlet 1

111 16U 04 ROD, displacement 1

112 16U 05 NUT, packing 1

113*◆● --- O-RING, PTFE, 35mm

x2.5mm 1

114◆● 16W492 BEARING, seal, throat

(3–pack) 1

115◆● 16W491 PACKING, cup, piston

(3–pack) 1

119 16U977 NUT, jam 1

120 16U976 PLATE, mounting,

cylinder 1

121◆● 16W519 PACKING, o-ring,

solvent-resistant

(6–pack)

Ref Part Description Qty

122■◆● --- O-RING, 50mm x

2.5mm 1

123◆ 102973 BALL, hardened

stainless steel

(3–pack: 16W493)

124* --- SEAT 1

125◆ 112420 BALL, hardened

stainless (3–pack:

16W494)

126■ --- SEAT 1

133 --- SCREW, drive 2

134 --- PLATE, identiﬁcation 1

135◆● 16W490 PACKING, o-ring,

cylinder (10–pack) 2

137 16W472 SPRING, guide, ball 1

140

▲

15H10 LABEL, pinch point 1

▲

Replacement Danger and arning labels, tags,

and cards are available at no cost.

Parts included in Piston Seat Repair Kit 16 509

(purchase separately).

■

Parts included in Inlet Seat Repair Kit 16 510

(purchase separately).

◆

Parts included in Pump Rebuild Kit 16 508

(purchase separately).

●

Parts included in Soft Seal Rebuild Kit 24U173

(purchase separately).

---

Not for sale.

332649A 9

Technical Speciﬁcations

680cc Pump Lo er

U.S. Metric

Maximum Working Pressure 1000 psi 7 MPa, 70 bar

Fluid Supply Type Gravity Feed

Stroke Length 4.75 in. 120 mm

Height (rod extended) 23.75 in. 0.603 m

Height (rod retracted) 19.0 in. 0.4 3 m

Lower Output 41.9 cu. in. per cycle 6 6 cc per cycle

Flow Rate at 30 cycles per minute 5.44 gpm 20.6 lpm

Flow Rate at 60 cycles per minute 10. gpm 41.2 lpm

Fluid Inlet Size 2 in. Cam Groove (Male)

Fluid Outlet Size 1 npt(f)

Weight (without ﬂuid) 47 lb 21 kg

Maximum Pump Speed

(Do not exceed maximum recommended pump speed of ﬂuid pump to prevent premature pump wear)

Spraying 40 cycles per minute (typically less than 10 cycles per minute)

Flushing 60–90 cycles per minute (only when pumping ﬂushing ﬂuid)

Wetted Parts Stainless steel, UHMWPE, PTFE, carbide seats, sol-

vent-resistant elastomer

10 332649A

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