Graco 307792C AGITATOR Owner's Manual

INSTRUCTIONS-PARTS
LIST
This manual contains IMPORTANT
WARNINGS AND INSTRUCTIONS
($
ORACO
307-792
Rev. C
Supersedes
B
READ AND RETAIN FOR REFERENCE
AGITATORS
700 psi (7 bar) MAXIMUM
WORKING PRESSURE
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
l
l
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.. ..........................................
.2, 3
OPERATION.. ..................................................
.3
SERVICE
4
Lubrication ......................................................
Air Motor Service.. ...........................................
.4
5
Gear Reducer Service .........................................
Setting the Output Shaft Coupling.. ......................
.
Replacing the Agitator Shaft.. .............................
.5
Replacing the Coupling .......................................
5
Replacing the Shaft Seals.. ................................
.5
PARTS DRAWING.. ..........................................
.6
AIR CONSUMPTION CHART.. .............................
.6
7
PARTS LIST .....................................................
HOW TO ORDER REPLACEMENT PARTS.. ............. 7
WARRANTY .........................................
Back Page
GRACO INC.
Model 220-356 shown
P.O. BOX 1441 MINNEAPOLIS,
0 COPYRIGHT
1986, GRACO INC.
MN 55440-1441
NOTE:
Reference numbers and letters in parentheses refer to the callouts in Figures l-6 and
the Parts Drawing.
WARNING
Pressure Relief Procedure
To reduce the risk of serious bodily injury, including splashing in the eyes or on the skin or injury 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.
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:
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 thumbscrew 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.
Position the air motor so it faces away from
the air regulator mounting as shown in Fig 1.
CAP
I. Follow the Pressure Relief Procedure
above.
Then remove the pressure tank cover from the tank.
O-RING
-16
AIR \
RELIEF
VALVE AIRINLET
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 needle 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
JI I
Fig 3
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 conditions. More frequent oil changes are needed under
severe operating conditions or in atmospheres containing 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.
4
307-792
If air motor operation is still sluggish, flush again.
DO NOT attempt to repair the air motor yourself. Contact 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) fittings, and install them in the air motor.
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 capscrews (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.
G
nn
Fig 6
Reinstall the shaft housing and shaft.
307-792
5
1 >
; “,I,
PARTS DRAWING
i :. ,.,g,;
:, ,z
‘z , ,, iII,
,,:,,
,:-..?
.&Ab’
.20
AIR CONSUMPTION
-0
37-i
6
307-792
F-24
500
CHART
1000 1500 ZDDO 2500 3000
SPEED-RPM(OUTPUT)
PARTS LIST
I, j ^,;
”
,,
HOW TO ORDER REPLACEMENT
PARTS
Model 220-356,
Series A
1. To be sure you receive the correct replacement parts,
kit or accessories, always give all of the information
Model 220-357,
Series A
2. Check the parts list to identify the correct part number;
do not use the ref. no. when ordering.
Model 220-358,
Series A
3. Order all parts from your nearest Grace distributor.
Includes items l-36
Includes items l-37
Includes items l-37
REF
NO.
PART
NY.
:
i
181-849
162-425
220-416
100828
z
170-751
181-848
i
7
:
181-794
181-749
100-718
210580
108462
Fit
17
103-553
104431
210-576
103-927
lla
12
13
171-970
220-463
108-544
181-746
181-747
181-748
104-373
157-674
171-968
102-598
14
15
I
17
18
108-463
206-264
20a
20b
2oc
20d
20e
20f
21
166-529
166-532
164-698
157-628
165-722
166531
166023
156-969
171989
103-782
requested
DESCRIPTION
Q-I-Y
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, 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
SCREW, set, sch; 10-24x0.25
SCREW, cap, sch; 5/16-18x 0.875
U-CLAMP
WASHER, lock
NUT
BUSHING; Included with Models
;:
35
36
37
102-025
loo-655
101-118
105-509
107-278
104-123
104-121
171-970
PTFE
is a registered
trademark
of the
Company,
Loctite@ is a registered
trademark
of the Loctite
Corporation.
;:
32
220-357 and 220-358 ONLY
in the chart
below.
6 digit
PART
NUMBER
QTY
PART DESCRIPTION
;
1
1
1
:
:
:
1
1
1
:
:
:
1
3
1
1
1
1
1
1
1
1
1
2
2
2”
4
1
2
2
1
NOTE: All agitator “wetted parts” are stainless steel
except for the agitator paddle (item 12), which is
nylon.
307-792
7
Listed below by the assembly changed are ADDED parts.
ASSEMBLY
CHANGED
PART
STATUS
REF
NO.
220-356,
220-357, &
220-358
Agitator
ADDED
ADDED
ADDED
i:
220-357 &
220-358
Agitator
ADDED
I
PART NO.
NAME
36
1lo-278
104-123
104-121
U-clamp
Washer
Nut
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
period of twelve months from the date of sale, repair or replace any part of the equipment proven defective. This warranty applies only when the
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, equipment or materials not supplied by Grace, or the improper design, manufacture, installation, operation or maintenance of structures, accessories, 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 PARTICULAR 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 EXCLUDED 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
TICULAR PURPOSE, WITH RESPECT TO ACCESSORIES,
TURED BY GRACO. These items sold, but not manufactured
ty, if any, of their manufacturer. Grace will provide purchaser
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PAREQUIPMENT, MATERIALS, OR COMPONENTS SOLD BUT NOT MANUFACbv Grace (such as electric motor, switches, hose, etc.), are subject to the warranwith 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

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