Graco 332339B User Manual

Instructions-Parts

Dosing Pumps

To pressurize and proportion ﬂuid in a ProMix® PD2K Electronic Positive Displacement Proportioning System. For professional use only.

Important Safety Instructions Read all warnings and instructions in this manual and in your PD2K proportioner manual. Save these instructions.

Seepage2 informat

for model part numbers and

ion.

332339B

PROVEN QUALITY. LEADING TECHNOLOGY.

Models............................................................... 2

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

Setup................................................................. 5

Pump Components ...................................... 5

Air Connections ........................................... 6

Fluid Connections........................................ 8

Electrical Connection.................................... 8

Repair................................................................ 9

Preventive Disconnect Driver Rep Lower Repa

Maintenance Schedule ................ 9

the Lower from the Driver............ 9

air ............................................... 10

ir............................................... 12

Models

Pump Part No.

24T788 A 35cc low pressure pump

24T789 A 35cc high pressure pump

24T790 A 70cc lo

24T791 A 70cc high pressure pump

Series Description (see NOTE below)

w pressure pump

Reconnect the

Parts.................................................................. 17

Pump Assembly........................................... 17

Lower Pump Assembly................................. 18

Pump Driver Assembly ................................. 20

Repair Kits, Related Manuals, and

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

Dimensions

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

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

........................................................ 22

Lower to the Driver ................ 16

Maximum Fluid Working Pressure, psi (MPa, bar)

300 (2.1

1500 (10.5, 105)

300 (2.1, 21)

1500 (

,21)

10.5, 105)

NOTE: pump pump

Lower pumps marked with a 3 on the bottom right of the identiﬁcation label are 35cc displacement s. Lower pumps marked with a 7 on the bottom right of the identiﬁcation label are 70cc displacement s.

gure 1 35cc Pump Identiﬁcation Label

Figure 2 70cc Pump Identiﬁcation Label

332339B

Warnings

The following exclamation p risks. When th Warnings. Pr the body of th

warnings are for the setup, use, grounding, maintenance and repair of this equipment. The oint symbol alerts you to a general warning and the hazard symbol refers to procedure-speciﬁc

ese symbols appear in the body of this manual or on warning labels, refer backtothese

oduct-speciﬁc hazard symbols and warnings not covered in this section may appear throughout

is manual where applicable.

WARNING

FIRE AND EXPLOSION HAZARD

Flammable prevent ﬁr

• Use equipment only in well ventilated area.

• Eliminat plastic d

• 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.

•Grounda

• 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 op equipm

• Keep a working ﬁre extinguisher in the work area.

fumes, such as solvent and paint fumes, in work area can ignite or explode. To help

e and explosion:

e all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and

rop cloths (potential static arc).

ll equipment in the work area. See Grounding instructions.

eration immediately if static sparking occurs or you feel a shock, Do not use

ent until you identify and correct the problem.

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.

•Dono

• Engage trigger lock when not spraying.

• Do not point gun at anyone or at any part of the body.

•Dono

• Do not stop or deﬂect leaks with your hand, body, glove, or rag.

• Follow the Pressure Relief Procedure when you stop spraying/dispensing and before

•Tig

• Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.

332339B 3

t spray without tip guard and trigger guard installed.

t put your hand over the spray tip.

cleaning, checking, or servicing equipment.

hten all ﬂuid connections before operating the equipment.

Warnings

WARNING

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, f

equipment can start without warning. Before checking, moving, or servicing

ollow the Pressure Relief Procedure and disconnect all power sources.

TOXIC FLUID Toxic ﬂuids inhaled, or

• Read MSDSs to know the speciﬁc hazards of the ﬂuids you are using.

• Store haza guideline

• Always wear chemically impermeable gloves when spraying, dispensing, or cleaning equipment.

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.

EQUIPM Misuse

• Do not operate the unit when fatigued or under the inﬂuence of drugs or alcohol.

•Donot

• Use ﬂuids and solvents that are compatible with equipment wetted parts. See Technical Data

• Do not leave the work area while equipment is energized or under pressure.

•Turn

• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine

• Do not alter or modify equipment. Alterations or modiﬁcations may void agency approvals

•Mak

• 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

• Keep children and animals away from work area.

• Comply with all applicable safety regulations.

can cause death or serious injury.

m component. See Technical Data in all equipment manuals.

syste

in all equipment manuals. Read ﬂuid and solvent manufacturer’s warnings. For complete information about your material, request MSDS from distributor or retailer.

off all equipment and follow the Pressure Relief Procedure when equipment is not in use.

manufacturer’s replacement parts only.

and create safety hazards.

e sure all equipment is rated and approved for the environment in which you are using it.

not kink or over bend hoses or use hoses to pull equipment.

OR FUMES

or fumes can cause serious injury or death if splashed in the eyes or on skin,

swallowed.

rdous ﬂuid in approved containers, and dispose of it according to applicable

ENT MISUSE HAZARD

exceed the maximum working pressure or temperature rating of the lowest rated

332339B

Setup

Pump Componen

Component

BDriver

DUpInletDoseValve

E Down Inle

G Down Outlet Dose Valve

Description

Stepper Motor

Pump Lower

tDoseValve

Up Outlet Dose Valve

Fluid Ou

Fluid Inlet Check Valve

Fluid Inlet Manifold

Fluid Valve

Fluid Outlet Pressure Sensor

Cable Connection to Pump Control Module

tlet Manifold

Outlet Check

Figure 3 Pump Components

P Fluid Inlet Pressure

Gauge

Fluid Outlet Fitting (1/4 npt(m)

luid Inlet Fitting (1/4 pt(m)

Jam Nuts, for mounting pump

332339B 5

Setup

Air Connectio

Red and green 5/32 in. (4 mm) tubing connects the solenoid manifold to the pump’s dosing valves. See the Pump Tubing Schematic on the next page.

NOTE: Tubing mm ± 13 mm) for lengths of tu Lengths lon valve respo

1. On the bottom of the solenoid manifold are four

ports with tube ﬁttings: UP OPEN, UP CLOSED, DOWN OPEN, and DOWN CLOSED. These ports provide air to open and close the pump’s inlet dosing valves.

bing, to balance the timing of the valves. ger than 18 in. (457 mm) will increase nse time.

lengths must be 18 in. ± 1/2 in. (457

all connections. Always use equal

Figure 5 Inlet Manifold Tubing Connections

2. On the side of the solenoid manifold are four

ports with 90° tube ﬁttings (not shown): UP OPEN, UP CLOSED, DOWN OPEN, and DOWN CLOSED. These ports provide air to open and close the pump’s outlet dosing valves.

Figure 4 Tubing Connections at Solenoid Manifold, to Pump Inlet Manifold

a. Connect green tubing (G) from the UP OPEN

ﬁtting to the 90° tube ﬁtting on the side of the INLET UP dosing valve.

b. Connect red tubing (R) from the UP CLOSED

ﬁtting to the 90° tube ﬁtting on the end of the INLET UP dosing valve.

c. Connect green tubing (G) from the DOWN

OPEN ﬁtting to the 90° tube ﬁtting on the side oftheINLETDOWNdosingvalve.

d. Connect red tubing (R) from the DOWN

CLOSED ﬁtting to the 90° tube ﬁtting on the end of the INLET DOWN dosing valve.

Figure 6 Tubing Connections at Solenoid Manifold, to Pump Outlet Manifold

a. Conne

b. Conne

ctgreentubing(G)fromtheUPOPEN

g to the 90° tube ﬁtting on the side of the

ﬁttin OUTLE

ﬁtti OUTL

Figure 7 Outlet Manifold Tubing Connections

TUPdosingvalve.

ct red tubing (R) from the UP CLOSED

ng to the 90° tube ﬁtting on the end of the

ET UP dosing valve.

6 332339B

Setup

c. Connect green tubing (G) from the DOWN

OPEN ﬁtting to the 90° tube ﬁtting on the side

of the OUTLET DOWN dosing valve.

d. Connect red tubing (R) from the DOWN

CLOSED ﬁtting to the 90° tube ﬁtting on the

end of the OUTLET DOWN dosing valve.

3. Repeat these steps for each pump in your

system.

EXH

G R G

See the following table to understand the relationship between pump stroke and dose valve actuation.

Table 1 Dose Valve Actuation

Pump Stroke

Down

Up Inlet

Valve

Down

Inlet

Valve

Outlet

Valve

Down Outlet Valve

Open Closed Open Closed

Closed Open Closed Open

OPEN

INLET UP

CLOSED

OPEN

CLOSED

OUTLET UP

DOWN

ure 8 Pump Tubing Schematic

Fig

EXH

OPEN

G R G

CLOSED

OPEN

CLOSED

INLET DOWN

OUTLET DOWN

332339B

Setup

Fluid Connect

1. Connect a 1/4 npt(f) ﬂuid hose from the ﬂuid

source to the check valve (J) at the pump’s ﬂuid inlet manifold (K). The inlet dose valves (D, E) will open and close alternately at the pump stroke changeover, to maintain a steady ﬂow into the pump.

2. Connect a 1/4 npt(f) ﬂuid outlet hose from the

check valve (L) at the pump’s ﬂuid outlet manifold (H). The outlet dose valves (F, G) will open and close alternately at the pump stroke changeover, to maintain a steady ﬂow out of the pump.

ions

Electrical Co

nnection

NOTICE

To avoid electrical component damage, remove all system power before plugging any connectors.

Connect the cable from the pump control module in the proportioner’s electrical control box to the cable connector (N) on the pump motor (A).

The cable has two connectors, one for the motor control and the other for encoder feedback. The connectors are keyed differently to ensure correct installation.

Figure 9 Fluid Connections

8 332339B

+ 16 hidden pages

Graco 332339B User Manual

Contents

Models

Warnings

Setup

Table 1 Dose Valve Actuation