Graco G3 Series User manual

Instructions

G3 Stirring Paddle

Replacement Kit

Instructions for replacing stirring paddle. For professional use only.

Part No.: 571044, 571045, 571046, 571047

Kit Parts

Important Safety Instructions

Read all warnings and instructions in this

manual and the G3 Pump instruction manual

that was included with your unit. Save these

instructions.

Ref. Description Qty

1 WIPER, stirring 1

2 BEARING, sleeve 1

3 O-RING, 258, green 1

4 PADDLE, stirring 1

2 Liter Model shown

3A0535C

ENG

Instructions

23A0535C

Pressure Relief

Relieve pressure in system by using two wrenches

working in opposite directions on pump element and

pump element fitting to only loosen fitting.

NOTE: When loosening pump element fitting, do NOT

loosen pump element. Loosening pump element will

change the output volume.

Instructions

Reference numbers used in these instructions corre-

spond to parts included in Kit and are provided on page

1. Parts identified with an alpha character are user pro-

vided, already installed components or locations neces-

sary to correctly complete these instructions.

Disassembly

NOTE: Unless otherwise noted, all illustrations show 2L

pump models.

1. Disconnect power source.

2. Relieve pressure using Pressure Relief Procedure

provided.

3. For 2 Liter models only: use a strap wrench

around reservoir (a) to turn reservoir 1/4 turn coun-

ter-clockwise (FIG. 2).

For 4L or larger reservoirs: be sure strap wrench

is positioned around the lower portion of the reser-

voir. Turn reservoir counter-clockwise approximately

to full turns until it is loose enough to remove it from

reservoir adapter.

SKIN INJECTION HAZARD

High-pressure fluid from dispense 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 ampu-

tation. Get immediate surgical treatment.

Follow Pressure Relief Procedure in this manual, when

you stop dispensing and before cleaning, checking, or

servicing equipment.

FIG. 1

FIG. 2

Instructions

3A0535C 3

4. Remove reservoir (a) and o-ring (b) from (FIG. 3).

Discard o-ring (b).

5. Step 5 (a - d) is for G3 Pumps with a follower

plate ONLY:

a. Verify the following parts were removed with

reservoir (FIG. 4):

• Spring (S)

• Follower Pate (FP)

• Follower Plate Seal (FPS)

•Rod(R)

b. Remove any parts still installed in the G3 base.

c. Be sure parts remaining in reservoir were

removed to reuse them for reassembly.

d. Examine follower plate seal (FPS) for wear or

damage. If it is damaged, it must be replaced.

Part No. 278139 is available from Graco. Con-

tact customer service to order this part or your

local Graco distributor.

NOTE: For models that include a Low Level paddle

and/or follower plate, be careful when removing stirring

paddle from G3 that bearing (2) does not fall into the

unit.

6. For all installations, turn paddle (d) clockwise to

loosen and remove it from G3 base (FIG. 5).

FIG. 3

2 Liter Models

4 Liter and Larger Models

FIG. 4

FIG. 5

FP FPS

Instructions

43A0535C

7. Step 7 (a - b) is for G3 Pumps with Low Level

Paddle ONLY:

a. Remove bolt (f) and washers (g) holding low

level paddle (e) to stirring paddle (d) and com-

pletely separate these parts from stirring pad-

dle. Keep bolt and washers for reassembly (FIG.

b. Examine the low level paddle (e), if undamaged

it can be reused. If damaged, a replacement low

level paddle, part no. 278136 is available from

Graco customer service.

8. For all installations, discard old stirring paddle (d)

(this part is not reused).

Reassembly

Always use new parts from kit when available.

1. Lightly grease stirring paddle arm (4a) with same

grease you are using in the pump (FIG. 7).

2. Slide wiper (1) over arm (4a) on stirring paddle (4)

(FIG. 7).

3. Step 3 (a - g) is for G3 Pumps with Low Level

Paddle ONLY. If your G3 Pump model does not

include a Low Level paddle, continue installa-

tion with Step 4, page 5.

To assemble low level paddle to stirring paddle (4):

a. Align washers (g), with hole in the base (h) of

the stirring paddle (4). One washer should be

on the top of the hole and one on the bottom

(underside) as shown in FIG. 8.

FIG. 6

FIG. 7

FIG. 8

Instructions

3A0535C 5

b. Examine low level paddle (e). It is designed with

a slot / gap on one side.

c. To correctly assemble the low level paddle (e) to

the stirring paddle (4), slide the stirring paddle

and washers into the slot / gap (FIG. 10).

d. Align hole (j) in top of low level paddle (e) with

hole in center of washers (g) and stirring paddle

(4) (FIG. 11).

e. Insert bolt (f), making sure it passes through the

low level paddle (e), holes in washers (g) and

base of stirring paddle (4) (FIG. 11).

f. Using a screwdriver, tighten bolt (d). Torque bolt

to 4 in. lbs (0.45 N•m). Bolt should be tight

enough to the hold low level paddle securely in

place while still allowing the paddle to move

freely back and forth. It also must not protrude

from the bottom of low level paddle (e).

NOTE: Over tightening bolt (d) will cause low

level paddle to not function.

g. Install bearing (2) in paddle (4) as shown in FIG.

12.

4. Install stirring paddle (4) in base of G3. Turn paddle

counter-clockwise until it is tighten securely in

place (FIG. 13). (Illustration does NOT show low

level paddle.)

NOTE: If a low level paddle (e) is installed, to pre-

FIG. 9

FIG. 10

slot / gap

slot/gap

FIG. 11

FIG. 12

Instructions

63A0535C

vent damage, hold low level paddle in its full out

position while installing stirring paddle (FIG. 14).

5. Step 5 (a - g) is for G3 Pumps with a follower

plate ONLY. If your G3 Pump does not include a

follower plate, continue Reservoir Installation

instructions, page 7.

a. Verify low level paddle (e) is in full out position

as shown in FIG. 14.

b. Install follower plate (FP) on stirring paddle (4).

Be sure the seal (FPS) is facing down (toward

ricer plate) as shown in FIG. 15.

c. Install spring (S) into spring pocket (k).

d. Install Rod (R) into reservoir (a).

e. Slide rod (R) through center of spring (S) and

follower plate (FP).

f. Seat spring (S) in spring pocket in top of reser-

voir (a).

g. Compress spring (S) to install reservoir (a). See

Reservoir Installation instructions.

FIG. 13

FIG. 14

FIG. 15

FPS

Instructions

3A0535C 7

Reservoir Installation - 2 Liter Models Only

1. Grease new o-ring (3) (included in kit) and install

o-ring in ricer plate groove (c) (FIG. 3).

2. Install reservoir (a) with vent (m) facing toward the

rear left (n) of the G3 base. See FIG. 17 for correct

orientation of these parts to ensure proper installa-

tion.

3. Position strap wrench over reservoir and use it to

turn reservoir 1/4 turn clockwise till reservoir will not

turn any farther.

Reservoir Installation - 4 Liter and Larger

Models Only

1. Grease new o-ring (3) (included in kit) and install

o-ring around reservoir adapter (p) as shown in

(FIG. 18).

1. Install reservoir onto adapter. Position strap wrench

around lower portion of reservoir as indicated in FIG.

19 and use it to turn the reservoir clockwise to

tighten it to the base.

To ensure the reservoir is tightened sufficiently, but

not over tightened:

a. First turn reservoir clockwise one full turn.

b. Then continue to turn the reservoir clockwise for

a second turn until the vent (q) in the reservoir

faces the back of the G3 pump and the horizon-

tal lines (r) molded into the reservoir align with

the pump outlets (s) on each side of the pump

base as shown in FIG. 19.

FIG. 16

FIG. 17

NOTICE

Be careful when installing reservoir that o-ring is not

pinched. If the o-ring is not correctly installed,

grease could leak out of the bottom of the G3 reser-

voir.

FIG. 18

ti16430

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

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

Original instructions. This manual contains English. MM 3A0535

Graco Headquarters: Minneapolis

International Offices: Belgium, China, Japan, Korea

GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441

www.graco.com

6/2010, revised 10/2010

c. When reservoir is correctly aligned and tight-

ened to the base you will have turned it approxi-

mately 2 full turns.

NOTE: Be careful to not overtighten reservoir.

FIG. 19

ti15454

strap wrench

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