Graco 308371S, Stainless Steel, Heavy-Duty Agitators Instructions

Instructions - Parts
HEAVY-DUTY STAINLESS STEEL
308371S
Agitators
EN
Pneumatic agitator for mixing and maintaining suspension of industrial coatings. Intended
to be used in tanks with fluid viscosities above 800 cP. Waterborne compatible.
For professional use only.
100 psi (0.7 MPa, 7 bar) Maximum Working Pressure
See page 2 for model information and approvals.
Important Safety Instructions
Read all warnings and instructions in this
manual before using the equipment.
Save these instructions.
03104C
Model 236661
Models
Contents
Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Related Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Air Requirements . . . . . . . . . . . . . . . . . . . . . . . . . 5
Air Line Accessories . . . . . . . . . . . . . . . . . . . . . . 5
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Install an Agitator onto a Non-Agitated Tank . . . . 6
Install a Heavy-Duty Agitator . . . . . . . . . . . . . . . . 7
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Pressure Relief Procedure . . . . . . . . . . . . . . . . . . 9
Operate the Agitator. . . . . . . . . . . . . . . . . . . . . . 10
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Lubricate the Heavy-Duty Agitator . . . . . . . . . . . 11
Flush the Air Motor. . . . . . . . . . . . . . . . . . . . . . . 11
Air Motor Repair . . . . . . . . . . . . . . . . . . . . . . . . . 12
Clean the Shaft . . . . . . . . . . . . . . . . . . . . . . . . . 12
Agitator Blades. . . . . . . . . . . . . . . . . . . . . . . . . . 12
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Replace the Heavy-Duty Air Motor . . . . . . . . . . . 13
Replace the Heavy-Duty Gear Reducer . . . . . . . 14
Service the Agitator Shaft and Couplings. . . . . . 14
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Stainless Steel, Heavy-Duty Agitators . . . . . . . . 16
Models 236661 (5 gallon), 236662 (10 gallon),
236663 (15 gallon) . . . . . . . . . . . . . . . . . . . . 16
Technical Specifications . . . . . . . . . . . . . . . . . . . . 18
California Proposition 65 . . . . . . . . . . . . . . . . . . . . 18
Air Consumption Chart . . . . . . . . . . . . . . . . . . . . . 19
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 20
Models
Tank Size
gallons (liters)
Heavy Duty Agitator
5 (19)
10 (38)
15 (57)
236661
236662
236663
Agency Approvals
2575
II 1/2 G Ex h IIB T4 Ga/Gb
ITS03ATEX11226X
Related Manual
Manuals in English
308369
2
Description
Stainless Steel 5-, 10-, and 15-Gallon Pressure Tanks Instruction manual
308371S
Warnings
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 work area can ignite or explode. Paint or solvent
flowing through the equipment can cause static sparking. To help 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 sparking).
Ground all equipment in the work area. See Grounding instructions.
Never spray or flush solvent at high pressure.
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.
Use only grounded hoses.
Hold gun firmly to side of grounded pail when triggering into pail. Do not use pail liners unless they
are anti-static 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.
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.
Do not wear loose clothing, jewelry or long hair while operating equipment.
Equipment can start without warning. Before checking, moving, or servicing equipment, follow the
Pressure Relief Procedure and disconnect all power sources.
SPECIAL CONDITIONS FOR SAFE USE
• Electrostatic charging hazard. Clean surfaces with a damp cloth and read instructions for additional
techniques to mitigate risk of electrostatic discharge.
• The Ambient Temperature Range of each agitator depends on the air motor included in the assembly.
Refer to Models and Technical Specifications in Instruction manual for additional information.
308371S
3
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 Specifications in all equipment manuals.
Use fluids and solvents that are compatible with equipment wetted parts. See Technical
Specifications in all equipment manuals. Read fluid and solvent manufacturer’s warnings. For
complete information about your material, request Safety Data Sheets (SDSs) 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.
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 Safety Data Sheets (SDSs) 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.
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. Protective equipment includes but is not
limited to:
•
•
4
Protective eyewear, and hearing protection.
Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer.
308371S
Installation
Installation
Air Requirements
To reduce the risk of fire and explosion, always
maintain a minimum of 1 in. (25 mm) clearance
between the rotating agitator parts and the container
to prevent sparks from contact.
For continuous use, the 3/4 HP (550 W) agitator air
motor requires 3 to 4 cfm (0.08 to 0.11 m3/min).
Air Line Accessories
A bleed-type air shutoff valve (SV) is required; it isolates
the air line components for servicing. The air shutoff
valve should be installed in the supply line and can be
used to stop and start the agitator. If the valve is used to
stop and start the agitator, you do not need to set the
agitator speed each time it is used.
Order air shutoff valves by the part numbers listed
below:
SV
AR
AF
AL
AM
MT
110223
1/4” npt(f)
x 1/4” npt(f)
110224
3/8” npt(f)
x 3/8” npt(f)
113333
3/8” npt(m) x 3/8” npt(f)
Install an air line filter (AF) to remove harmful dirt and
moisture from the air supply. To order an air line filter,
order by the part numbers listed below:
106148
3/8” npt, 20-micron element, 5 oz. bowl,
without gauge
106146
1/2” npt, 40-micron element, 40 oz. bowl, 0
to 200 psi (0 to 14 bar) regulated pressure
range
NOTICE
Not lubricating the air motor will cause air motor
failure.
FIG. 1: Typical Installation
Key:
SV:
AF:
AR:
AL:
AM:
MT:
Bleed-type air shutoff valve
Air line filter
Air regulator and gauge
Air line lubricator
Agitator motor
Mix tank (reference only)
Downstream from the filter, install an air line lubricator
(AL) for automatic air motor lubrication. Set the
lubricator feed rate at 1 drop of oil per minute for high
speed or continuous duty usage. Do not overfeed oil or
exhaust air may become contaminated. To manually
lubricate the air motor, see Lubricate the Air Motor on
page 11. To order a 3/8” npt air line lubricator, order Part
No. 214847.
NOTE: Reference numbers and letters in parentheses
refer to the callouts in the figures and in Parts on page
16.
308371S
5
Installation
Grounding
6. Tighten the U-bolt in a position leaving a 0.015 in.
(0.006 mm) clearance gap between the thrust
washer and the top of the shaft support. See Parts
on page 16.
The equipment must be grounded to reduce the risk
of static sparking. Static sparking can cause fumes to
ignite or explode. To reduce the risk of static sparking,
all electrically conductive objects or devices in the
spray area must be properly grounded.
Check your local electrical code for detailed grounding
instructions for your area and type of equipment.
14
D
17
E
9
F
To ground the agitator, connect one end of the ground
wire (A) to the ground connector (B) on agitator
mounting bracket (see FIG. 2). Connect the other end of
the ground wire to a true earth ground.
For an additional ground wire and clamp, order part
237569.
C
14 (REF)
10
36
25
26
11
03261B
B
A
FIG. 2: Grounding
Install an Agitator onto a
Non-Agitated Tank
7. 10 and 15 gallon tanks: place the lower bearing
assembly (2) and (3) on the shaft.
5 gallon tank: clamp U-bolt directly to shaft support
(11).
1. Follow the Pressure Relief Procedure, page 9.
Remove the tank cover from the tank.
8. Slide the baffle (23) over the fluid tube (K) and
position the baffle about 1/2 in. (13 mm) above the
highest point on the agitator paddle (12).
2. Unscrew and remove the hex jam nut (C), plug (D),
and O-ring (E) from the tank cover.
9. Clamp the baffle in place with U-bolt (26), washer
(36), and nut (25).
3. Place the gasket (17) on top of the tank cover center
hole. Insert the agitator drive shaft (14) through the
center hole.
10. Align the agitator paddle (12) on the agitator shaft
(14) as instructed for your model, as follows:
NOTE: Position the air motor so it faces away from the
air regulator mounting as shown in FIG. 3.
4. Install the jam nut (C) below the tank cover. Tighten
the jam nut firmly to assure a seal between the
gasket (17) and tank cover.
5. Install the shaft support (11) onto the shaft housing
(9). Secure with U-bolt (26), clamp (10), lock washer
(36) and nut (25).
6
Models 236662 and 236663 (10 and 15 Gallon)
Align the top of the paddle hub (G) with the mark (H)
on the agitator shaft (14).
Model 236661 (5 Gallon)
If a 5 gallon pail is to be placed inside the pressure
tank (5 gallon tank only), align the top of the paddle
hub (G) with the upper mark (J) on the agitator shaft
(14).
308371S
Installation
11. Apply low strength sealant to the two setscrews
(13). Firmly secure the paddle with the setscrews.
2&3
25
Install a Heavy-Duty Agitator
11
25
1. Follow the Pressure Relief Procedure, page 9.
Remove the pressure tank cover from the tank.
24
2. Remove the upper U-bolt (26).
26
14
G
36
D
17
9
13 1
J
14
H
E
11
F
K
12
1/2”
(13 mm)
02264
23
1
Apply low strength (cyanoacrylate) thread sealant.
12. Refer to FIG. 4, page 10. Remove the plug from the
air inlet manifold (N).
13. Remove the elbow (37) from the end of the air hose
(21) and attach to the pressure tank air inlet
manifold (N).
14. Connect the swivel end of the air hose (21) to the
elbow (37).
15. Remove the gear reducer oil level plug (L) from the
street elbow and check the oil level in the reducer
housing. The oil should never be higher than the oil
level plug. If necessary, drain or add oil until the
proper oil level is attained.
16. Screw the oil level plug (L) back onto the street
elbow (37).
NOTE: Special high temperature synthetic gear oil is
required for the gear reducer. Use only Graco oil, part
number 217374.
C
14 (REF)
10
36
25
26
11
03261B
3. Loosen the two set screws (13) and remove the
agitator paddle (12).
4. On 10 and 15 gallon tanks: remove the lower
U-bolt (26), loosen screws (24) and slide the baffle
(23) off the fluid tube (K).
5. Unscrew and remove the hex jam nut (C), gasket
(17), and agitator from the tank cover.
6. Place the gasket (17) on top of the tank cover center
hole. Insert the agitator 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. 3, page 9.
7. Install the jam nut (C) below the tank cover. Tighten
the jam nut firmly to assure a seal between the
gasket (17) and tank cover.
8. Install the shaft support (11) onto the shaft housing
(9). Secure with U-bolt (26), clamp (10), lock washer
(36) and nut (25).
308371S
7
Installation
9. Tighten the U-bolt in a position leaving a 0.015 in.
(0.006 mm) clearance gap between the thrust
washer and the top of the shaft support. Refer to
Parts, page 16.
2&3
24
25
10. 10 and 15 gallon tanks: place the lower bearing
assembly (2) and (3) on the shaft.
5 gallon tank: clamp U-bolt directly to shaft support
(11).
11. Slide the baffle (23) over the fluid tube (K) and
position the baffle about 1/2 in. (13 mm) above the
highest point on the agitator paddle (12).
36
Model 236661 (5 Gallon)
If a 5 gallon pail is to be placed inside the pressure
tank (5 gallon tank only), align the top of the paddle
hub (G) with the upper mark (J) on the agitator shaft
(14). If a pail will not be placed inside the tank, align
top of hub (G) with the lower mark (H) on the
agitator shaft (14).
8
13 1
J
14
H
11
K
12
1/2”
(13 mm)
13. Align the agitator paddle (12) on the agitator shaft
(14) as instructed for your model:
Models 236662 and 236663 (10 and 15 Gallon)
Align the top of the paddle hub (G) with the mark
(H) on the agitator shaft (14).
26
G
12. Clamp the baffle in place with U-bolt (26), washer
(36), and nut (25).
NOTE: Minimum of 1 in. (2.5 cm) clearance on all
sides of agitator blades is required. When mounted
correctly in Graco drum cover, this clearance
should be met.
11
25
02264
23
1
Apply low strength (cyanoacrylate) thread sealant.
14. Refer to FIG. 4, page 10. Connect the swivel end of
the air hose (21) to the elbow (37).
15. Remove the gear reducer oil level plug (L) from the
street elbow and check the oil level in the reducer
housing. 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 Graco oil, part
number 217374.
308371S
Operation
Operation
Pressure Relief Procedure
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 before opening
the tank cover or fill port.
Over-pressurizing the tank or accessories could
cause a part to rupture. To reduce the risk of serious
injury, including splashing in the eyes or on the skin,
or property damage, never exceed the maximum air
and fluid working pressure of the lowest rated
component in your system.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
splashing fluid and moving parts, which can result if
the tank pressure is not fully relieved, always follow
the Pressure Relief Procedure before opening the
pressure tank cover or fill port, cleaning, checking, or
servicing the equipment.
1. Close the bleed-type air shutoff valve (SV) to relieve
pressure to the air motor.
2. Turn the drain cock fitting (U) counterclockwise to
open it.
NOTE: Wait until there is no air escaping through the
fitting before removing the cover or opening the fill port.
3. Leave the drain cock fitting (U) open until the cover
or filler cap have been reinstalled.
U
WLD
FIG. 3: 5 Gallon Tank with Heavy-Duty Agitator
308371S
9
Operation
Operate the Agitator
NOTICE
To avoid damaging the equipment, 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. Agitate the fluid only enough to
maintain even mixing.
NOTE: Use liquids with conductivity greater than 1000
pS/m.
/
0
1. Fill the pressure tank as explained in your Stainless
Steel 5-, 10-, and 15-Gallon Pressure Tanks
instruction manual.
2. Refer to FIG. 4. Screw on the filler cap (F), 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 (M).
3. Close the tank air regulator(s) by turning the knob(s)
counterclockwise. Turn on the air supply.
1
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.
WLD
FIG. 4
5. To stop the agitator, close the bleed-type air shutoff
valve (SV) or close the needle valve (20).
Stop the agitator before removing it from the pail.
10
308371S
Maintenance
Maintenance
Flush the Air Motor
To reduce the risk of serious bodily injury, including
cuts, amputation of fingers, and splashing in the eyes
or on the skin, always follow the Pressure Relief
Procedure, shut off the agitator, and disconnect the
air line before checking or repairing the agitator.
Do not use kerosene or other flammable solvents to
flush the air motor. Flushing with flammable solvents
could cause fire or explosion and result in serious
injury or property damage.
Lubricate the Heavy-Duty
Agitator
NOTICE
To prevent air motor failure or gear reducer failure
and possible damage to the agitator assembly,
always keep the air motor and gear reducer properly
lubricated.
Lubricate the Air Motor
Install an air line lubricator for automatic air motor
lubrication. Set the lubricator feed rate at 1 drop of oil
per minute for high speed or continuous duty usage. Do
not overfeed oil or exhaust air may become
contaminated. To order a 3/8 in. npt air line lubricator,
order part number 214847.
If an air line lubricator is not installed, the air motor must
be manually lubricated every 8 hours. Lubricate the
agitator air motor by placing 10–20 drops of SAE #10
light oil in the motor’s air inlet. Oil must have an
auto-ignition rating of 275°F (135°C) or greater. Run the
agitator for about 30 seconds.
Lubricate the Gear Reducer
Refer to FIG. 5, page 13. Remove the oil plug (T) and the
oil level plug (L), drain the oil, and thoroughly flush the
housing with light flushing oil. Refill with Graco oil (part
number 217374) 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 Graco distributor.
308371S
Hazardous fluids or toxic fumes can cause serious
injury or death if splashed in the eyes or on the skin,
swallowed, or inhaled. When flushing the air motor:
•
•
•
Flush the air motor in a ventilated area.
Keep your face away from the exhaust port.
Wear the appropriate protective clothing, gloves,
eyewear, and respirator.
If the air motor is sluggish or inefficient, perform the
following procedures.
The recommended solvent for air motors and lubricated
pumps is Gast® Flushing Solvent (Gast part number
AH255 or AH255A) or Inhibisol® Safety Solvent.
1. Disconnect the air line and muffler (22). See Parts
on page 16.
2. Add several teaspoons of solvent or spray the
solvent directly into the motor.
3. Rotate the shaft by hand in both directions for a few
minutes.
4. Reconnect the air line, and slowly increase the air
pressure until there is no trace of solvent in the
exhaust air.
5. Re-lubricate the motor with a squirt of light-weight
oil in the chamber.
11
Maintenance
Air Motor Repair
If the vanes need replacing, or if foreign material is
present in the motor chamber, an experienced mechanic
may remove the end plate opposite the drive shaft end.
Do not pry with a screwdriver. It will dent the surface of
the plate and body, causing leaks. Use a puller tool,
which will remove the end plate while maintaining the
position of the shaft.
New vanes should have the edges with cut corners (or
the notched edges, if the vanes are reversible) pointing
toward the bottom of the vane slot.
Clean the Shaft
Every week, clean any dried fluid from around the
bearing (38) area of the shaft (14).
12
Agitator Blades
Materials can become electrostatically charged when
stirred or blended. To prevent fire and explosion,
ground equipment and do not allow material to build
up on agitator. Dried material could allow static build
up and interfere with grounding.
Regularly check the agitator for dried material buildup.
Clean using a rag soaked in solvent that is compatible
with the spray material and the surfaces being cleaned.
Additionally, extra precautions need to be taken if using
lower conductive materials (<1000 pS/m) such as:
•
Avoid stirring/mixing at high speeds.
•
Avoid insoluble mixtures.
•
When possible, increase the material conductivity
with additives.
•
Use liquids with a high conductivity (>1000 pS/m).
308371S
Service
Service
Replace the Heavy-Duty Air
Motor
5. Apply pipe thread sealant to the inlet (20) and outlet
(22) fittings, and install them in the air motor.
T
L
Remove the Heavy-Duty Air Motor
21
1. Disconnect the air hose (21).
2
2. Loosen the two setscrews (32) on the collar (2) and
remove the air motor (1).
20
2
P
22
Install the Heavy-Duty Air Motor
2
1. Place one-half of the coupling (3a) on the air motor
shaft (S), flush with the end of the shaft. Tighten the
coupling setscrew against the flat on the shaft.
4
1
32
3a
2. Install the load cushion (P) on the gear reducer
coupling half. Slide the clamp (2) onto the collar (4).
S
1
3. Align the two coupling halves (3a), and push the air
motor hub into the collar (4) until it bottoms out, then
back it out 0.015 in. (0.38 mm). Make sure the air
motor inlet and outlet face up.
4. Apply Loctite™ Number 222 to the two clamp
setscrews (32). Align the setscrews to one side of
the slots on the collar (4), and tighten them.
308371S
2266B
1
Apply Loctite Number 222.
2
Apply low-strength thread sealant.
FIG. 5
13
Service
Replace the Heavy-Duty Gear
Reducer
Service the Agitator Shaft and
Couplings
Do not attempt to repair the gear reducer (5) yourself.
Contact your Graco distributor.
Set the Agitator Shaft Coupling
Refer to FIG. 6, page 15.
1. When replacing the gear reducer, turn it upside
down and remove the cap screws (33) and washers
(40) from the bottom of the old gear reducer.
2. 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.
3. Apply Loctite Number 271, or equivalent, to the four
cap screws (33).
4. Install the cap screws (33) with the washers (40)
through the bracket (6) and into the gear reducer.
Make sure the three hole pattern on the bottom of
the bracket (6) is orientated in relation to the gear
reducer (5) as shown in FIG. 6, page 15.
5. Run the agitator to let the bracket (6) center itself.
Torque the screws to 160 in-lb (18 N•m).
6. Leave the gear reducer upside down for 30 minutes
to allow the Loctite to cure.
7. Set the coupling as instructed under Set the
Agitator Shaft Coupling, on page 14.
1. 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).
2. 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 halves (19a, 19b) and
the load cushion (R).
Replace the Agitator Shaft
1. Remove the agitator paddle. Remove the setscrew
from the lower coupling (19b). Pull out the agitator
shaft (14) and install the new shaft.
2. Replace the agitator paddle.
3. 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).
Replace the Coupling
NOTE: Do not use the four screws supplied with the
replacement gear reducer to secure it; those screws will
not properly secure the gear reducer. Use the cap
screws and washers (33 and 40) removed from the old
gear reducer. Be careful not to spill any oil from the gear
reducer.
1. Remove the three cap screws (18), washers (7) and
spacers (8) from the mounting bracket (6).
2. Lift the air motor and gearbox off the tank cover.
Remove the two coupling halves (19a, 19b) from the
shaft ends.
3. Install the new coupling halves on the shaft ends.
Replace the air motor/bracket assembly and the
three cap screws (18), washers (7) and spacers (8)
to fasten the mounting bracket.
14
308371S
Service
Replace the Shaft Seals
5
1. Remove the three cap screws (18), washers (7),
and spacers (8) from mounting bracket (6), and
move the air motor assembly.
2. With air motor assembly removed, remove the
setscrew from the lower coupling half (19b). Pull out
the agitator shaft (14).
19a
3. Remove the hex nut (16) and remove the shaft
housing (9). Remove the seals (9a, 9b) from the
shaft housing, and install the new seals.
6
40
1 33
4. Reinstall the shaft housing and shaft. Use
installation steps listed in Set the Agitator Shaft
Coupling, page 14.
18
7
NOTE: Check bearing and agitator for wear during
recommended weekly cleaning. Replace worn parts
with proper Graco replacement parts.
8
R
19b
15b
2
14 (REF)
9a
9
9b 2
16
15a
14
2267C
1
Apply Loctite Number 271.
Torque to 160 in-lb (18 Ntm)
2
Install seals with open spring-loaded
side toward tank
FIG. 6: Gear Reducer
308371S
15
Parts
Parts
Stainless Steel, Heavy-Duty Agitators
Models 236661 (5 gallon), 236662 (10 gallon), 236663 (15 gallon)
5
37
3
4 1
19
27
21
28
35
22
29
6
2 32
2
40
18
7
3
1
3
14
33
8
30
19
41
9a
20
42
15
9
20c
9b
20b
17
20a
16
10
36
25
20d
20f
26
20e
15
Needle Valve
includes items 20a through 20f
4 14
11
5 39
38
25
23
24
25
1
Orient collar (4) with slots facing up and down.
2
Orient screws (32) on collar (2) to either side of
slots on mounting collar (4).
3
Remove original bolts, and replace with (33).
Torque to 160 in-lbs (18 N-m).
4
Locate the bottom shoulder of shaft (14) against
washer (15) when assembling coupler (19).
5
Items (38) and (39) are not used on the 5-gallon
model. Attach item (26) to (11) for this model.
Apply low-strength (cyanoacrylate) thread
sealant. Torque to 34-40 in-lbs. (4-4.5 N-m).
6
26
36
12
14
13 6
3103D
16
308371S
Parts
Stainless Steel, Heavy-Duty Agitators
Ref.
Part
Description
1
2
3
4
162425
181849
100828
220416
4a
4b
5
6
7
8
9
181848
170751
181794
181749
100020
108462
236092
9
9
10
11
103553
104431
112533
210576
12*
13
236098
131497
14
188886
14
188887
14
188888
MOTOR, air
COLLAR
COUPLING, flexible
COLLAR, mounting; Includes
items 4a & 4b
SLEEVE, mounting, air motor
PLATE, mounting
REDUCER, gear
BRACKET, mounting
WASHER, lock
SPACER
HOUSING, shaft; Includes
replaceable items 9a & 9b
SEAL, shaft
SEAL, shaft
CLAMP, plate, sst
SUPPORT, shaft; Includes
replaceable item 38
PADDLE, agitator; plastic
SCREW, set, cup, pt, 1/4–20 x 0.5
in. (13 mm)
SHAFT, agitator, 15 in., 5 gal size
(18.9 liters); sst
SHAFT, agitator, 20.75 in., 10 gal
size (37.8 liters); sst
SHAFT, agitator, 31 in., 15 gal size
(56.7 liters); sst
WASHER, thrust; 1/2 in. ID x 1 in.
OD
NUT, jam, hex; 1–1/2 in.–12;
stainless steel
GASKET, LDPE foam
SCREW, cap, socket head; 10–32
x 0.5 in. (13 mm)
COUPLING, flexible
VALVE, needle; Includes items 20a
to 20f
NEEDLE, valve
NUT, packing
KNOB, packing
15
104373
16
188784
17
18
196309
102598
19
20
108463
206264
20a
20b
20c
166529
166532
164698
308371S
Ref.
Part
20d
20e
20f
21
157628
165722
166531
160023
22
23
24
156969
171989
112222
25
112223
1
1
1
1
26
27
28
29
30
32
110278
111593
157021
186620
17P806
101118
1
2
33
110298
1
35
116940
1
36
37
104123
112307
38
171970
39
187324
1
3
40
41
42
170772
194701
100078
1
1
*
1
1
1
 Replacement safety labels, tags, and cards are
available at no cost.
Qty.
1
1
1
1
1
1
1
1
1
1
1
1
1
2
Description
Qty.
1
O-RING; buna-N
1
BODY, valve
1
WASHER, nylon
1
HOSE, coupled; 400 psi (2.8 MPa,
28 bar) maximum working
pressure
1
MUFFLER, exhaust
1
BAFFLE, agitator, sst
2
SCREW, cap, socket head; 1/4-20
x 1 in., (25 mm) sst
6
NUT, hex, regular; 1/4–20, (19
mm) sst
2
U-BOLT, clamp; sst
1
SCREW, grounding
1
WASHER, lock, internal
1
LABEL, grounding symbol
1
LABEL, warning (not shown)
2
SCREW, set, sch; 10–24 x 0.25 in.
(6 mm) long
4
SCREW, cap, sch; 1/4–20 x 0.875
in. (22 mm) long
2
SCREW, cap; 5/16–18 x 1/2 in. (13
mm) long
4
WASHER, lock, sst
1
ELBOW, street; 90- x 1/8–27 npt(f)
1/8–27 npt(m)
1
BEARING PTFE; Included with
Models 236662 and 236663 only
1
HOUSING, bearing; Included with
Models 236662 and 236663 only;
sst
4
WASHER, flat; 0.26 x 0.69 dia; sst
1
GUARD
1
SCREW, #8–32x3/8 in.
Stainless steel agitator paddle 186517, 304 stainless
steel welded construction, replaces plastic agitator
paddle 236098.
17
Technical Specifications
Technical Specifications
Heavy-Duty Stainless Steel Agitators
US
Air motor
Maximum air pressure
Ambient operating temperature range
Gear ratio
Weight
Wetted Parts
Metric
Air driven, gear reduced, 1/2 HP (373 W)
100 psi
0.7 MPa, 7 bar
+33.8°F < Ta < +104°F
+1°C < Ta < +40°C
Reduced 20:1; shaft rpm is 1/20 of air motor rpm
21.0 lb
9.5 kg
304 and 316 stainless steel, PTFE,
Zytel, and bronze
Noise (dBa)
Sound pressure
At no load at maximum rpm
83.4 dB(A)
Under load at 50 rpm
64.0 dB(A)
Sound power
At no load at maximum rpm
96.6 dB(A)
Under load at 50 rpm
77.2 dB(A)
Sound pressure measured 3 feet (1 meter) from equipment.
Sound power measured per CAGI-PNEUROP, 1971.
Notes
All trademarks or registered trademarks are the property of their respective owners.
California Proposition 65
CALIFORNIA RESIDENTS
WARNING: Cancer and reproductive harm – www.P65warnings.ca.gov.
18
308371S
Air Consumption Chart
Air Consumption Chart
30
A
B
C
D
E
CFM (Free Air) Consumption
25
20 psi (0.14 MPa, 1.4 bar)
40 psi (0.28 MPa, 2.8 bar)
60 psi (0.41 MPa, 4.1 bar)
80 psi (0.55 MPa, 5.5 bar)
100 psi (0.7 MPa, 7 bar)
E
D
20
C
15
B
10
A
5
0
0
500
1000
1500
2000
2500
3000
Speed–RPM (Output)
308371S
19
Graco Standard Warranty
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in
material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty
published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by
Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written
recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of
non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or
maintenance of structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of
the claimed defect. If the claimed defect is verified, Graco will repair 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 costs of parts, labor, and transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or
consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT
MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to
the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these
warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or
the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the
negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into,
given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la
rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite
de ou en rapport, directement ou indirectement, avec les procédures concernées.
Graco Information
For the latest information about Graco products, visit www.graco.com.
For patent information, see www.graco.com/patents.
TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor.
Phone: 612-623-6921 or Toll Free: 1-800-328-0211, Fax: 612-378-3505
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 308371
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 1994, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
www.graco.com
Revision S, May 2021

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