Graco 307792C AGITATOR Owner's Manual

INSTRUCTIONS-PARTS LIST ($

307-792

ORACO

Rev. C

Supersedes B

WARNINGS AND INSTRUCTIONS

READ AND RETAIN FOR REFERENCE

AGITATORS

700 psi (7 bar) MAXIMUM WORKING PRESSURE l l

Model 220-356, Series A

For 5 gallon pressure tank

Model 220-357, Series A

For 10 gallon pressure tank

Model 220-358, Series A

For 15 gallon pressure tank

Air driven, gear reduced, l/2 hp (373 W) air motor

20: 1 ratio gear reducer: shaft rpm is l/20 of air motor rpm

TABLE OF CONTENTS

INSTALLATION.. ..........................................

OPERATION.. ..................................................

SERVICE

Lubrication ......................................................

.2, 3

.3

Air Motor Service.. ...........................................

Gear Reducer Service .........................................

4

.4

Setting the Output Shaft Coupling.. ...................... .

5

Replacing the Agitator Shaft.. .............................

Replacing the Coupling .......................................

Replacing the Shaft Seals.. ................................

PARTS DRAWING.. ..........................................

AIR CONSUMPTION CHART.. .............................

PARTS LIST .....................................................

.5

5

.5

.6

.6

7

HOW TO ORDER REPLACEMENT PARTS.. ............. 7

WARRANTY ......................................... Back Page

Model 220-356 shown

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

0 COPYRIGHT 1986, GRACO INC.

NOTE: Reference numbers and letters in paren- theses refer to the callouts in Figures l-6 and the Parts Drawing.

WARNING

Pressure Relief Procedure

To reduce the risk of serious bodily injury, in- cluding splashing in the eyes or on the skin or in- jury from moving parts, which can result if the tank pressure is not fully relieved, always follow this procedure before opening the pressure tank cover or fill port.

1. Shut off the air supply to the tank.

2. Close the air inlet valve. See Fig 1.

3. Open the air relief valve by turning the thumb- screw counterclockwise.

4. Wait until there is no air escaping through the valve before removing the cover or opening the fill port.

5. Leave the air relief valve open until you have reinstalled the cover or fill port.

I. Follow the Pressure Relief Procedure above.

Then remove the pressure tank cover from the tank.

2. Unscrew the jam nut, and remove the jam nut, plug, and o-ring from the tank cover. See Fig 2.

3. Place the gasket (17) on top of the tank cover’s center hole. Insert the drive shaft (14) through the center hole.

NOTE: Position the air motor so it faces away from the air regulator mounting as shown in Fig 1.

CAP

O-RING

-16

AIR \

VALVE -

AIR-

INLET

VALVE

Fig 2

4. Install the jam nut (16) below the tank cover.

Tighten the jam nut firmly to assure a seal between the gasket (17) and tank cover.

5. Install the support (11) and clamp (10) onto the shaft housing (9).

Fig

2

6. Align the agitator paddle (12) on the drive shaft as instructed for your model, below.

Models 220-357 and 220-358

Align the top of the paddle hub (A) with the mark (C) on the drive shaft (14).

Model 220-356

If a 5 gallon pail is to be placed inside the pressure tank (5 gallon tank only), align the top of the paddle hub (A) with the upper mark (B) on the drive shaft (14).

If a pail will not be p/aced inside the tank, align top of hub (A) with the lower mark (C) on the drive shaft (14).

After the paddle (12) is properly aligned, apply low strength sealant to the two setscrews (13) and firmly secure the paddle with the setscrews.

7. Slide the baffle (23) over the pressure tank supply tube (E). Position the baffle about l/2 in. above the highest point on the agitator paddle (12). Secure the baffle with the two screws (24) and nuts (25). See

Fig 3.

8. Connect the air hose (21) to the pressure tank’s air inlet manifold (F). See Fig 4.

9. Remove the gear reducer’s oil level plug (G) from the street elbow and check the oil level in the reducer housing. See Fig 4. The oil should never be higher than the oil level plug. If necessary, drain or add oil until the proper oil level is attained. Screw the oil level plug back onto the street elbow.

NOTE:

Special high temperature synthetic gear oil is required for the gear reducer. Use only

Grace oil, part number 204-559.

To reduce the risk of serious bodily injury which can result if the tank pressure is not fully relieved, always follow the Pressure Relief Procedure on pane 2 before opening the tank cover or fill port.

1. Fill the pressure tank as explained in the Pressure

Tank Instruction Manual 307-232.

2. Screw on the fill port cap (J), or if the tank cover was removed, place the agitator and cover on the pressure tank and secure the cover with the c-clamp handles (K). See Fig 4.

WARNING

Overpressurizing the tank or accessories could cause a part to rupture. To reduce the risk of serious bodily injury, including fluid injection, splashing in the eyes or on the skin, and property damage, never exceed the maximum air and fluid working pressure of the lowest rated component in your system.

3. Close the tank air regulator(s) by turning the knob(s) counterclockwise. Turn on the air supply.

4. To start the agitator, slowly open the needle valve

(20). Adjust the speed of the agitator, with the nee- dle valve, to about 40 to 60 RPM. Operate the agitator continuously while using the pressure tank.

CAUTION

DO NOT operate the agitator at a high speed for a long period of time. Excessive agitator speed can cause foaming of fluid (making the fluid unusable), vibration, and increased wear on parts. Always agitate the fluid only enough to maintain even mixing.

5. To stop the agitator, close the needle valve (20).

24

Fig 3

JI I

Fig 4

307-792 3

Lubrication

Air Motor: To lubricate the air motor, place one drop of oil in the motor’s air inlet after about every 49 hours of operating time. The air motor may require more or less frequent lubrication, depending on the condition of the air supply.

Gear Reducer: After the first 100 hours or two weeks of operation, remove the drain plug, drain the oil, and thoroughly flush the housing with light flushing oil.

Remove the oil level plug, and refill with Grace oil (part number 204-559) to the proper level. Afterward, change the oil every six months or 2500 hours of operation

(whichever occurs first) under normal operating condi- tions. More frequent oil changes are needed under severe operating conditions or in atmospheres contain- ing excessive moisture or abrasives. Contact your Grace representative for recommendations.

Air Motor Service (See Fig 5)

If the air motor operation is erratic or sluggish, flush the motor as follows. Remove the muffler, and fill the cavity with kerosene. Wait 10 minutes, then operate the agitator slowly until all the kerosene is blown out.

If air motor operation is still sluggish, flush again.

DO NOT attempt to repair the air motor yourself. Con- tact an authorized Grace Service Center.

When replacing the air motor, place one-half of the coupling (3a) on the air motor shaft (L), flush with the end of the shaft. Tighten the coupling setscrew against the flat on the shaft.

Install the load cushion (MI on the gear reducer coupling half. Slide the clamp (2) onto the collar (4).

Align the two coupling halfs, and push the air motor hub into the collar (4) until it bottoms out, then back it out

0.015 in. Make sure the air motor inlet and outlet face up.

Apply Loctite@ No. 222 to the two clamp setscrews

(32). Align the setscrews to one side of the slots on the collar (41, and tighten them.

Apply PTFE tape to the inlet (20) and outlet (22) fit- tings, and install them in the air motor.

4 307-792

Gear Reducer Service (See

Fig 6)

DO NOT attempt to repair the gear reducer (5) yourself.

Contact an authorized Grace Service Center.

When replacing the gear reducer, turn it upside down and remove the cap screws.(33) from the bottom of the old gear reducer. Remove the top coupling half (19a) from the old gear reducer, and install the coupling half on the new gear reducer. Wipe the screw holes clean with a rag.

Apply Loctite No. 271, or equivalent, to the four cap- screws (33). Install them through the bracket (6) and into the gear reducer. Torque the screws to 220 in-lb (25 N.m).

Leave the gear reducer upside down for 30 minutes to allow the Loctite to cure. Make sure the three hole pattern on the bottom of the bracket (6) is orientated as shown in

Fig 6. Set the coupling as instructed under Setting the

Output Shaft Coupling.

CAUTION

DO NOT use the four screws supplied with the new gear reducer to secure it; those screws will not properly secure the gear reducer. Use the cap screws (33) which were removed from the old gear reducer. Be careful not to spill any oil from the gear reducer.

Setting the Output Shaft Coupling (See

Fig 6)

With the agitator shaft (14) pushed up against the washer

(15a), secure the lower portion of the coupling half (19b) to the shaft by tightening the coupling setscrew against the flat on the shaft. Leave about a 0.015 in. gap between the coupling half and washer (15b).

Secure the upper coupling half (19a) to the gear reducer shaft by tightening the coupling setscrew into the keyway.

Leave about a 0.015 in. gap between each of the coupling halfs (19a, 19b) and the load cushion (N).

Replacing the Agitator Shaft (See

Fig 6)

Remove the setscrew from the lower coupling (19b). Pull out the agitator shaft (14) and install the new shaft.

Set the coupling as instructed above.

Replacing the Coupling (See

Fig 6)

Remove the three cap screws (18) from the mounting bracket (6). Pull the two coupling halfs (19a, 19b) out through the bottom of the mounting bracket (6).

Install the new coupling halfs in the mounting bracket.

Screw the three cap screws (18) back into the mounting bracket.

Replacing the Shaft Seals (See

Fig 6)

Remove the setscrew from the lower coupling half (19b).

Pull out the agitator shaft (14).

Remove the three cap screws (18) from the mounting bracket (6). Remove the shaft housing (9). Remove the seals (9a, 9b) from the shaft housing, and install the new seals.

Reinstall the shaft housing and shaft.

Fig 6

G

307-792 5

PARTS DRAWING i : ,.,g,; I,

,:-..? .&Ab’

.20

AIR CONSUMPTION CHART

37-i

F-24

6 307-792

-0 500 1000 1500 ZDDO 2500 3000

(OUTPUT)

PARTS LIST ”

Model 220-356, Series A

Includes items l-36

Model 220-357, Series A

Includes items l-37

Model 220-358, Series A

Includes items l-37

REF PART

NO. NY.

DESCRIPTION

I, j ,;

,,

Q-I-Y

20a

20b

2oc

20d

20e

20f

21

;:

32

;:

35

36

37 z i

7

: lla

12

13

14

15

I

17

18

: i

Fit

17

100-718

108462

171-970

220-463

108-544

181-746

181-747

181-748

104-373

157-674

171-968

102-598

108-463

206-264

166-529

166-532

164-698

157-628

165-722

166531

166023

156-969

171989

103-782

102-025 loo-655

MOTOR, air

CLAMP

COUPLING, flexible

COLLAR, mounting

Includes items 4a 8 4b

.SLEEVE, mounting, air motor

.PLATE, mounting

REDUCER, gear

BRACKET, mounting

LOCKWASHER, int. shkprf, no. 10

SPACER

HOUSING, shaft

Includes replaceable items 9a & Sb

.SEAL, shaft

.SEAL, shaft

CLAMP, hose

SUPPORT, shaft

Includes replaceable item 1 la

.BEARING,

104-121 NUT

171-970 BUSHING;

PTFE

PADDLE, agitator

SCREW, set, slot hd, 1/4-20x 0.5

SHAFT, 15”. 5 gal size

SHAFT, 20.75”, IO gal size

SHAFT, 31”, 15 gal size

WASHER thrust; l/2” ID x 1” OD

NUT, jam, hex; I-l/2”-12

GASKET, cork w/buns-N

SCREW, cap, socket head;

10-32x 0.5

COUPLING, flexible

NEEDLE VALVE ASSY.

Includes items 20a to 20f

.NEEDLE, valve

.NUT, packing

.KNOB, packing

.O-RING; buna-N

BODY, valve

.WASHER, nylon

HOSE, couoted: 400 osi (28 bar) maximum working pressure

MUFFLER

BAFFLE, agitator

SCREW, cap, socket head; l/4-20 x 1”

NUT, hex, regular; l/4-20

SCREW, cap; 5116-18 x3/4

101-118 SCREW, set, sch; 10-24x0.25

105-509 SCREW, cap, sch; 5/16-18x 0.875

107-278 U-CLAMP

104-123 WASHER, lock

Included with Models

220-357 and 220-358 ONLY

PTFE is a registered trademark of the Company,

Loctite@ is a registered trademark of the Loctite Corporation.

1

:

:

;

1

1

1

3

1

1

1

1

1

1

1

:

:

:

1

2

2

1

1

2”

4

1

2

2

:

1

1

1

NOTE: All agitator “wetted parts” are stainless steel except for the agitator paddle (item 12), which is nylon.

HOW TO ORDER REPLACEMENT PARTS

1. To be sure you receive the correct replacement parts, kit or accessories, always give all of the information requested in the chart below.

2. Check the parts list to identify the correct part number; do not use the ref. no. when ordering.

3. Order all parts from your nearest Grace distributor.

6 digit

PART

NUMBER QTY PART DESCRIPTION

307-792

7

Listed below by the assembly changed are ADDED parts.

ASSEMBLY

CHANGED

PART

STATUS

220-356, ADDED

ADDED

REF

NO. PART NO. NAME i:

36

1 lo-278

104-121

U-clamp

Nut

I

220-357 & ADDED 37 171-970 Bushing

I

THE GRACO WARRANTY AND DISCLAIMERS

WARRANTY

Grace warrants all equipment manufactured by it and bearing its name to be free from defects in material and workmanship on the date of sale by an authorized Grace distributor to the original purchaser for use. As purchaser’s sole remedy for breach of this warrantv, Grace will, for a equipment is installed, operated and maintained in accordance with Grace’s written recommendations.

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

This warrantv is conditioned uoon the oreoaid return of the eouioment claimed to be defective for examination bv Grace to verifv the claimed defect. If the’ claimed defect is verified; Grace will rapair 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 the costs of parts, labor and transportation.

DISCLAIMERS AND LIMITATIONS

THE TERMS OF THIS WARRANTY CONSTITUTE PURCHASER’S SOLE AND EXCLUSIVE REMEDY AND ARE IN LIEU OF ANY OTHER

WARRANTIES (EXPRESS OR IMPLIED), INCLUDING WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PAR-

TICULAR PURPOSE, AND OF ANY NON-CONTRACTUAL LIABILITIES, INCLUDING PRODUCT LIABILITIES, BASED ON NEGLIGENCE OR

STRICT LIABILITY. EVERY FORM OF LIABILITY FOR DIRECT. SPECIAL OR CONSEQUENTIAL DAMAGES OR LOSS .IS EXPRESSLY EX-

CLUDED AND DENIED. IN NG CASE SHALL GRACO’S LIABILITY EXCEED THE AMOUNT OF THE PURCHASE PRICE. ANY ACTION FOR

BREACH OF WARRANTY MUST BE BROUGHT WITHIN TWO (21 YEARS OF THE DATE OF SALE.

EQUIPMENT NOT COVERED BY GRACO WARRANTY

GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PAR-

TURED BY GRACO. These items sold, but not manufactured bv Grace (such as electric motor, switches, hose, etc.), are subject to the warran- ty, if any, of their manufacturer. Grace will provide purchaser with reasonable assistance in making any claim for breach of these warranties.

Factory Branches:

Atlanta, Chicago, Dallas, Detroit, Los Angeles, West Caldwell (N.J.)

Subsidiary and Affiliate Companies:

Canada; England; Switzerland; France; Germany; Hong Kong; Japan

GRACO

INC.

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

PRINTED IN U.S.A. 807-792 12-86 Revised 9-89