Graco 3A4797B, Stainless Steel, Heavy Duty, Air-Driven Agitators Instructions
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Instructions/Parts
Radial coatings.
Important
Read all warnings and instructions in this manual before using the equipment. Save these instructions.
100 psig (0.7 MPa, 7 bar) pressure tank Maximum Working Pressure, 70 psig (0.5 MPa, 5 bar) agitator Maximum
Recommended Operating Pressure
See page 3 for model part numbers and approvals information.
3A4797B
EN
PROVEN QUALITY. LEADING TECHNOLOGY.
Models............................................................... 2
Warnings ........................................................... 3
Installation.......................................................... 5
Typical System ............................................ 5
Air Regulator and Mufflers ............................ 6
Agitator ....................................................... 7
Grounding ................................................... 9
Connecting Hoses........................................ 9
Air Line Filter ............................................... 9
Operation ........................................................... 10
Preparing the Fluid....................................... 10
Filling the Tank ............................................ 10
Operating the Agitator .................................. 10
Pressure Relief Procedure............................ 11
Safety Relief Valve....................................... 11
Maintenance ...................................................... 12
Greasing the Air Motor ................................. 12
Air Motor Muffler .......................................... 12
Cleaning the Shaft ....................................... 12
Cleaning the Tank........................................ 12
Service .............................................................. 13
Removing the Air Motor ................................ 13
Installing the Air Motor.................................. 13
Servicing the Agitator Shaft and
Couplings....................................... 14
Installing the Motor Conversion Kit ................ 14
Parts.................................................................. 15
All Models ................................................... 15
Tank Parts for Models 25C536, 25C537,
25C538 .......................................... 17
Accessories........................................................ 19
Strainer 240418 ........................................... 19
Buna-N Air Supply Hose............................... 19
Low-Pressure Regulator Conversion Kit
235041 .......................................... 19
High-Pressure Regulator Conversion Kit
236680 .......................................... 19
Air Regulator and Filter 202660..................... 19
Gun Air Regulator Kit 235042 ....................... 19
PTFE Coated Gasket 117574 ....................... 19
Nylon Fluid Supply Hose .............................. 19
Bottom Outlet Kit 236677.............................. 19
Heavy Duty Agitator ..................................... 19
C-clamp Replacement Kit 111381 ................. 19
Antistatic Polyethylene Tank Liners ............... 19
Stainless Steel Agitator Paddle
186517 .......................................... 19
Dimensions ........................................................ 20
Air Consumption ................................................. 21
Notes ................................................................ 22
Technical Specifications...................................... 23
California Proposition 65............................... 23
25C536
25C537
25C538
Heavy Duty Agitator with Pressure Tank, 5 Gallon
Heavy Duty Agitator with Pressure Tank, 10 Gallon
Heavy Duty Agitator with Pressure Tank, 15 Gallon
25C539
25C540
25C541
Heavy Duty Agitator
(to be used with a 5 gallon tank)
Heavy Duty Agitator
(to be used with a 10 gallon tank)
Heavy Duty Agitator
(to be used with a 15 gallon tank)
2
19A844 To convert a heavy duty agitator motor assembly with a radial piston air motor assembly.
0 ° C ≤ Tamb ≤ 50 ° C
0 ° C ≤ Tamb ≤ 50 ° C
3A4797B
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, 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.
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 arc).
• 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 antistatic or conductive.
you identify and correct the problem.
• Keep a working fire extinguisher in the work area.
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
Fluid from the equipment, leaks, or ruptured components can splash in the eyes or on skin and cause serious injury.
checking, or servicing equipment.
• Tighten all fluid connections before operating the equipment.
• Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.
3A4797B 3
4
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 complete information about your material, request SDS from distributor or retailer.
• Do not leave the work area while equipment is energized or under pressure.
• 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 fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or swallowed.
• Read Safety Data Sheet (SDS) 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.
Equipment surfaces and fluid that is heated can become very hot during operation. To avoid severe burns:
• Do not touch hot fluid or 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:
• Protective eyewear, and hearing protection.
• Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer.
3A4797B
Be sure that all accessories are properly rated to withstand the pressures in the system.
NOTE: Throughout the manual, reference numbers and letters in parentheses refer to numbers and letters in figures and the parts drawings.
Reference Sold
SH Air supply hose
SV
GCW
AH
FH
AG
AF
T
Air Shutoff valve
Ground clamp and wire
Atomizing air hose
Fluid hose
Air spray gun
Air inlet filter
Tank
Reference Included
TH Tank Air Inlet Hose
RV
BV
FV
TR
AM
AR
AA
Safety relief valve (far side)
Air inlet ball valve
Fluid outlet ball valve
Tank air regulator
Air motor
Motor air regulator
Agitator air inlet hose
3A4797B 5
The air motor is capable of operating in a clockwise or counterclockwise direction, depending on where the air regulator is mounted. Clockwise direction is preferred for this blade orientation
• When the air regulator is installed in one of the two lower ports on the motor, a clockwise rotation results, as viewed from the top of the motor.
• When installed on either side in one of the two upper ports, a counterclockwise rotation results.
• The port opposite the regulator must be plugged for the motor to operate.
The air regulator, mufflers, air gauge, nipple connector, and swivel connector are not factory installed on models 25C539, 25C540, and 25C541.
Follow the directions below to install these items:
1.
Screw the swivel connector (F) (see below) into the desired port (upper or lower) in the motor (K).
2.
Screw the nipple connector (G) into the air regulator (H) outlet. Note arrow directions on the regulator.
3.
Attach the air regulator by screwing it into the swivel connector.
4.
Install a plug (E) in the port opposite the regulator
(this is necessary for motor operation).
5.
Attach the air gauge (J) by screwing it into the hole in the top of the air regulator.
6.
Install a plug (E) in the regulator in the port opposite the air gauge.
7.
Screw one muffler (D) into the top of the motor.
8.
Screw the second muffler into the open port on the far side of the motor from the regulator.
9.
Install the third muffler in the open port above or below the regulator. An additional fitting may be needed (not provided) to space the regulator farther away from the motor.
NOTE: Use of the third muffler is not necessary, but is beneficial for increased air circulation in humid conditions. If a third muffler is not used, the hole must be plugged (E).
6
D
E
F
G
H
J
K
Mufflers
Plugs
Swivel connector
Nipple connector
Air regulator
Air gauge
Air motor
3A4797B
Misalignment between the shaft and fluid tube may cause the agitator shaft to bind when clamping the U-bolt (56) in place. Loosen if required to allow shaft rotation. The agitator motor should run at 20 psig (1.4 bar) air pressure when dry.
12. On the 5 gallon tank, clamp the lower U-bolt directly to the shaft support (44) (see below).
Slide the baffle (53) over the fluid tube (12) and position the baffle about 1/2 in. (13 mm) above the highest point on the agitator paddle (45).
Clamp in place with the lower U-bolt (56), washer
(41), and nut (55).
To reduce the risk of fire and explosion, always maintain a minimum of 1 in. (25.4 mm) clearance between the rotating agitator parts and the container to prevent sparks from contact.
• If installing a new agitator onto a new tank, follow steps 1– 2, and 7–15 (models 25C536, 25C537,
25C538).
• If replacing an established agitator, follow steps
1, 3–12, and 14–15 (models 25C539, 25C540,
25C541).
1.
Relieve pressure from the system (if applicable) by following the procedure in the
Pressure Relief Procedure, page 11
, and remove the pressure tank cover from the tank.
2.
Unscrew and remove the hex jam nut (49), plug
(P), and o-ring (R) from the tank cover.
3.
Remove the upper U-bolt (56).
4.
Loosen the two agitator paddle set screws (46) and remove the agitator paddle (45).
5.
On 10 and 15 gallon tanks, remove the lower
U-bolt (56), loosen screws (54), and slide the baffle (53) off the fluid tube (12).
6.
Unscrew and remove the hex jam nut (49), gasket (50), and agitator from the tank cover.
7.
To install the new agitator, place the gasket (50) on top of the tank cover center hole. Insert the agitator shaft (47) through the gasket and center hole.
NOTE: Position the air motor and regulator as shown in
.
8.
Install the jam nut (49) below the tank cover, and tighten firmly to assure a seal between the gasket (50) and tank cover.
9.
Install the shaft support (44) onto the shaft housing (42).
10. Clamp with upper U-bolt (56), clamp (43), lock washer (41), and nut (55).
Tighten the U-bolt at a position leaving approximately 0.015 in. (0.006 mm) clearance gap between the thrust washer and the top of the shaft support.
11. On the 10 and 15 gallon tanks, place the lower bearing assembly (66) and (67) on the shaft.
13. Align the agitator paddle (45) on the agitator shaft (47) as follows:
• For 10 and 15 gallon tanks: Align the top of the paddle hub with the lower mark on the agitator shaft.
• For 5 gallon tanks: If a 5 gallon pail is to be placed inside the pressure tank, align the top of the paddle hub with the upper mark on the agitator shaft. If a pail is not to be placed inside the tank, align the top of the hub with the lower mark on the agitator shaft. After the paddle is properly aligned, apply low strength sealant to the two set screws (46) and firmly secure the paddle.
14. Remove the plug or existing elbow from the air inlet manifold (5). Install the new elbow (69) into the pressure tank air inlet manifold.
15. Connect the swivel end of the air hose (70) to the elbow (69).
3A4797B 7
8
Ref No Description
12
Fluid Tube (included with models
25C536, 25C537, 25C538)
41
42
43
44
Washer
Shaft Housing
Clamp Plate
Shaft Support
45 Agitator Paddle
46
47
49
Set Screw
Agitator Shaft
Jam Nut
50
53
54
55
56
66
67
P
R
Gasket
Agitator Baffle
Screw
Nut
U-Bolt
Bearing (models 25C537, 25C538, 25C540,
25C541)
Bearing Housing (models 25C537, 25C538,
25C540, 25C541)
Plug
O-ring
3A4797B
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, the mounting cover and all electrically conductive objects or devices in the spray area must be properly grounded.
A ground wire and clamp are included with the tank.
• To ground the agitator, connect one end of the ground wire (GW) to the ground connector (77) on agitator drive guard (74). Connect the other end of the ground wire to a true earth ground.
Install an air inlet filter (AF) upstream from the air inlet ball valve (17) to remove dirt and moisture from the compressed air supply. Connect an air supply hose (SH) between the air inlet ball valve and the air filter air outlet.
Connect the atomizing air hose (AH) to the air spray gun (AG) from an air outlet of the air manifold.
Connect a fluid hose (FH) between the fluid outlet ball valve (18) and the air spray gun (AG) fluid inlet.
General purpose hose sizes are listed below.
Fluid
For runs of: Use:
3/8" ID 0 to 35 ft (0 to 11 m)
35 to 100 ft
(11 to 30 m)
100 to 200 ft
(30 to 61 m)
1/2" ID
3/4" ID
Air
For runs of: Use:
0 to 50 ft (0 to 15 m)
50 to 100 ft
(15 to 30 m)
100 ft+ (30 m+)
5/16" ID
3/8" ID
1/2" ID
• To ground the pressure tank, connect one end of a 12 awg (1.5 mm 2 ) minimum ground wire to the pressure tank and the other end of the wire to a true earth ground.
Air line filters remove harmful dirt and moisture from the compressed air supply. Order part 106148 for
3/8 npt or 106149 for 1/2 npt.
3A4797B 9
3.
Be sure the ground wire is attached.
4.
Replace the filler cap or cover, tighten the c-clamp handles to 8-10 ft-lbs, approximately 1/2 to 1 turn past hand tight.
Personal injury, such as splashing in the eyes, may result from pressure in the tank. Always follow the
Pressure Relief Procedure, page 11
before opening the tank cover or fill port.
Personal injury or equipment damage may result from lifting/falling heavy equipment. To avoid personal injury or equipment damage:
• Do not lift the drum cover and agitator without proper assistance.
• Do not walk or stand beneath a raised elevator.
Prepare the fluid according to manufacturer instructions. Strain the fluid to remove large particles that could clog the spray gun or the siphon tube.
Agitators are used to keep solids in suspension, which assists in keeping solids from clogging the siphon tube. If solids have settled in the container, use a shaker or some other device to thoroughly agitate the fluid before installing and operating the agitator.
1.
Follow the
Pressure Relief Procedure, page 11
.
2.
Fill the fluid supply container (through the fill port in the cover, or remove the cover and pour fluid directly into the tank) to about 3 or 4 inches (75 to 100 mm) above the agitator blade.
If utilizing a 5-gallon tank, use one of the following methods for paint placement: a.
Remove the cover and place a 5-gallon pail of fluid in the 5-gallon tank.
b.
Remove the cover and place a 5-gallon antistatic polyethylene liner in the 5-gallon tank. Pour the fluid into the antistatic polyethylene liner.
NOTE: If a 5-gallon pail is used inside the tank, an adjustment is required to the agitator paddle position to avoid interference. See step 12 in
for adjustment information.
Over-pressurizing the tank or accessories could cause a part to rupture. To reduce the risk of serious injury, such as splashing, or property damage, never exceed the maximum air and fluid working pressure of the lowest rated component in your system.
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. Only agitate the fluid enough to maintain even mixing.
1.
Fill the pressure tank.
See
2.
Be sure the air inlet ball valve (17) is closed.
3.
Close the air regulator valves (31, 38) by turning the knobs counterclockwise.
4.
Turn on the air supply.
5.
Open the air supply inlet ball valve (17).
6.
To start the agitator, slowly open the agitator air regulator valve (38). Adjust the speed of the agitator, to about 40 to 60 rpm, if needed.
7.
Open and adjust the tank air regulator (31) to the approximate pressure desired.
8.
Open the fluid outlet ball valve (18).
9.
Turn on the atomizing air to the air spray gun.
Test spray a small area and adjust the pressure as necessary. Always use the lowest possible air pressure to obtain the desired results.
10. To stop the agitator, turn the air regulator counterclockwise to reduce pressure to zero, or close the air inlet ball valve (17) to the tank.
10 3A4797B
Follow the Pressure Relief Procedure whenever you see this symbol.
The agitator and pressure tanks remain pressurized until pressure is manually relieved. To help prevent serious injury from splashing fluid and moving parts, follow this procedure:
• Before you check or service any part of the spray system
• Before you loosen or remove the pressure tank cover of fill port
• Whenever you stop spraying
1.
Shut off the air supply to the tank by closing the air inlet valve (17).
2.
Open the drain cock fitting (7) by turning it counterclockwise.
3.
Wait until there is no air escaping through the drain cock fitting before removing the cover or opening the fill port.
4.
Leave the drain cock fitting (7) open until you have reinstalled the cover or fill port.
NOTE: Tighten the c-clamp to 8-10 ft-lbs
(approximately 1/2 to 1 turn past hand tight).
A safety relief valve (4) automatically relieves the tank pressure when the air pressure exceeds 95 to
100 psi (0.5 to 0.6 MPa, 6.5 to 7 bar).
Each week, check the working order of the safety relief valve.
Only as a test , raise the air pressure to 95 to 105 psi (0.5 to 0.6 MPa, 6.5 to 7.1 bar). If the safety relief valve does not relieve the pressure, replace it immediately. Do not attempt to repair it.
The safety relief valve will reset automatically when the pressure is relieved.
3A4797B 11
Moving parts, such as an impeller blade, can cut or amputate fingers. To reduce the risk of serious injury, always shut off the agitator and disconnect the air line before checking or repairing the agitator.
Before performing any maintenance procedure, follow the
Pressure Relief Procedure, page 11 .
After every 20 million revolutions or every three to four months (whichever comes first), grease the motor needle bearing. Recommended grease:
MOBILGREASE XHP 222 SPECIAL or equivalent with minimum flash point temperature of 399.2° F
(204° C).
1.
Follow the
Pressure Relief Procedure, page 11
.
2.
Remove the motor top cover (103).
3.
Using a manual grease gun, push grease into the 21RC fitting (102) until grease is seen below the top washer (109a).
Depending on the environment of the motor, periodically check the cleanliness of the air motor muffler. Dirty or clogged air mufflers result in decreased motor efficiency and may cause the motor to run irregularly. If the muffler is dirty or clogged, replace it with a new muffler.
Each week, clean any dried fluid from around the bearing (66) area of the shaft (47) and inspect the bearing for cracking or excessive wear.
12
To avoid fire and explosion, always ground the equipment and waste container. To avoid static sparking and injury from splashing, always flush at the lowest possible pressure.
• Flush equipment only in a well-ventilated area.
• Flush at the lowest pressure possible. Check connectors for leaks and tighten as necessary.
• Flush with a fluid that is compatible with the fluid being dispensed and the equipment wetted parts.
1.
Follow the
Pressure Relief Procedure, page 11
.
2.
Follow the procedure below to force the fluid back through the hose and into the tank: a.
Loosen the spray gun air cap retaining ring about two turns.
b.
Hold a rag over the air cap and trigger the gun for a few seconds, until the fluid is forced back into the tank.
3.
Remove the tank cover.
4.
Empty the fluid from the tank and pour a suitable amount of solvent into it
NOTE: Be sure that the solvent is compatible with the fluid being sprayed and with the wetted materials in the tank. Refer to
Technical Specifications, page 23
for information on wetted part materials.
5.
Replace the tank cover and tighten the c-clamps, to 8-10 ft-lbs, approximately 1/2 to 1 turn past hand tight.
6.
Close the drain cock fitting (7).
7.
Turn on the air supply.
8.
Hold a metal part of the gun against a grounded metal waste container and trigger the gun into the waste container until clean solvent comes from the gun.
9.
Remove the solvent from the system and wipe the inside of the tank and the rest of the equipment clean with a solvent-dampened rag
3A4797B
Moving parts, such as an impeller blade, can cut or amputate fingers. To reduce the risk of serious injury, always shut off the agitator and disconnect the air line before checking or repairing the agitator.
Before performing any service procedure, follow the
Pressure Relief Procedure, page 11
.
If the air motor requires more than installation of a service kit, it is usually quickest and easiest to send it to a Graco distributor for repair or replacement. A motor rebuild kit (25M535) is available. See the motor rebuild kit manual 3A5050 for more information.
To install the air motor, follow these steps.
1.
Secure the motor (34) to the adapter plate (22) using three screws (35) . Torque to 150–170 in-lbs (17–19 N•m).
2.
Install the upper coupling half (52b) on the motor shaft. Lightly tighten the set screw. You will tighten it further in a later step.
3.
Install the lower coupling half (52c) on the agitator shaft (47). Do not tighten the set screw at this time.
4.
Install the motor (34) and adapter plate (22) assembly on the top of the bracket (58) using the four screws (26). Do not tighten the screws securely at this time.
To remove the air motor for service, follow these steps,
1.
Remove the screw (75) holding the guard and then remove the guard (74).
2.
Remove the four screws (26) securing the motor to the mounting bracket (58).
3.
Remove the three screws (35) securing the motor (34) the adapter plate (22).
4.
Disconnect the air regulator (38).
3A4797B 13
1.
With the agitator shaft (47) pushed up against the washer (48), secure the lower portion of the coupling half (52c) to the shaft by tightening the coupling set screw against the flat on the shaft.
Leave about a 0.015 in. (0.38 mm) gap between the coupling half and washer (48).
2.
Align the upper coupling (52b) with the lower coupling and tighten the four screws (26).
Tighten to 150–170 in-lbs (17–19 N•m). Leave a 0.015 in. (0.38mm) gap between each of the coupling halves and the spider (52d). Tighten the set screw on the lower coupling (53b).
3.
Connect the air regulator (38). Check for proper alignment by running the agitator at low pressures and speeds. If necessary, adjust the alignment by loosening and retightening the four adapter plate screws (26).
1.
Remove the agitator paddle (45). Remove the set screw from the lower coupling (52b). Pull out the agitator shaft (47) and install the new shaft.
Replace the agitator paddle (45).
2.
With the agitator shaft (47) pushed up against the washer (48), secure the lower portion of the coupling half (52b) to the shaft by tightening the coupling set screw against the flat on the shaft.
Leave about a 0.015 in. (0.38 mm) gap between the coupling half and washer (48).
1.
Remove the guard mounting screw (75) and remove the guard (74).
2.
Remove the three cap screws (51) and washers
(40) from the mounting bracket (58), and remove the air motor assembly.
3.
With air motor assembly removed, remove the set screw from the lower coupling half (52b). Pull out the agitator shaft (47).
4.
Remove the hex nut (49) and remove the shaft housing (42). Remove the seals (42a) from the shaft housing, and install the new seals.
5.
Reinstall the shaft housing and shaft. Use installation steps listed in Setting the Agitator
Shaft Coupling.
Follow these steps to install the motor conversion kit 19A844.
1.
Remove the existing motor and gearbox. See manual 308371 for instructions.
2.
Install the air motor.
See
Installing the Air Motor, page 13
and
Setting the Agitator Shaft Coupling, page 14
.
3.
Install the air regulator and mufflers. See
Air Regulator and Mufflers, page 6
.
4.
Attach the fittings (36, 8) and the hose (70) to complete the conversion.
14 3A4797B
1
2
Locate the bottom shoulder of the shaft (47) against the washer (48) when assembling the coupler (52).
Bearings 66 and 67 are not used on the
5-gallon model. Attach the U-bolt (56) to the support shaft (44).
3
Apply low-strength (cyanoacrylate) thread sealant.
Follow recommended torque specifications found in the Installation section of this manual.
3A4797B 15
Part No.
Description
8** 100030 Bushing
22** 17R038 Plate, Adapter, Agitator
26** 100057 Screw, Cap, Socket Head
34**
35**
25C675
124313
Motor, Air, Rotary Piston; includes 36, 37, 38, 39
Screw, Shcs, M6-1 x 16 mm, Stainless Steel
36 156823 Fitting, Union, Swivel
37 156971 Fitting, Nipple, Short
38 116513 Regulator, Air
39 108190 Gauge, Pressure, Air
40 100020 Washer, Lock
41 104123 Washer, Lock, Spring
42 236092
Housing Assembly, Shaft; includes 42a and 42b
42a 103553 Seal, shaft
42b 104431 Seal, shaft
43 112533 Plate, Clamp
44 210576
Support, Shaft; includes item 66
45* 236098 Paddle, Agitator; plastic
46 112230 Screw, Set, Sch
188886
Shaft, Agitator; 15 inches;
Models 25C536 and
25C539
47 188887
188888
Shaft, Agitator; 21 inches;
Models 25C537 and
25C540
Shaft, Agitator; 31 inches;
Models 25C538 and
25C541
1
1
1
1
2
1
1
1
1
3
2
1
1
1
3
6
1
1
4
1
1
48 104373 Washer, Thrust
49 188784 Nut, Jam, Hex
50
Part No.
Description
196309 Gasket
51 102598 Screw, Cap, Socket Head
52** 17R478 Coupling, Flexible
53 171989 Baffle, Agitator
54 112222 Screw, Cap, Sch
55 112223 Nut, Hex, Regular
56 110278 Bolt, U
58 181749 Bracket, Mounting
66 171970
Bearing, PTFE; included with models 25C540 and
25C541 only
67 187324
Housing, Bearing; included with models 25C540 and
25C541 only
1
1
69 112307 Fitting, Street Elbow
70 160023 Hose, Coupled
74 194701 Guard, Agitator, Drive
75 100078
Screw, Thread Forming,
Hex Head
1
76 157021 Washer, Lock, Int
77 111593 Screw, Grounding
78 186620 Label, Symbol, Ground
80 ▲ 17P806 Safety Tag (not shown)
▲ Replacement safety labels, signs, tags, and cards are available at no cost.
1
* A welded 304 stainless steel paddle is available.
Order part number 186517.
** Included with Motor Conversion Kit 19A844.
1
1
1
1
1
1
1
2
6
3
1
2
1
2
1
3
16 3A4797B
3A4797B 17
Part No.
Description
3
4
1
2
5
100361
100840
164724
103347
Plug, Pipe
Fitting, Elbow, Street
Hose, Coupled
Valve, Safety; 100 Psi
6
7
8
9
189016 Manifold, Air, Inlet
112306
Plug, Pipe, Stainless Steel;
3/8 Npt
101759 Fitting, Cock, Drain
100030
112538
Bushing; 1/8-27 npt(f) x
1/4-18 npt(m)
Fitting, Elbow, Street; 90
Degree
10 176347 Label, Identification
11 110475 Fitting, Tee, Street
12
171976
171975
171974
Tube, 13 inches; Model
265C536
Tube, 18 inches; Model
265C537
Tube, 29 inches; Model
265C538
14 156849 Pipe, Nipple
15 171988 Gasket
16 110756 Elbow, Street; 90 Degree
17 208390
Valve, Ball
3/8-18 npsm(m) x 3/8-18 npt (m)
18 237533
Valve, Ball; 316 Stainless
Steel
3/8-18 npsm(m) x 3/8-18 npt (m)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
Part No.
Description
20 210575 Cap, Filler
21 159239
Fitting, Nipple, Pipe
Reducing
23 ▲ 175078 Label, Warning
25 104813 Plug, Pipe
27
29
236087
236088
236089
15D059
15D060
Tank Assembly, Pressure;
5 Gallon, Model 25C536; includes gasket 117571
Tank Assembly, Pressure;
10 Gallon, Model 25C537; includes gasket 117571
Tank Assembly, Pressure;
15 Gallon, Model 25C538; includes gasket 117571
Liner, Tank; 5 Gallon,
Model 25C536; qty of 20
(not shown)
Liner, Tank; 10 Gallon,
Model 25C537; qty of 20
(not shown)
1
1
1
1
1
1
1
30
31
15D061
160430
171937
Liner, Tank; 15 Gallon,
Model 25C538; qty of 8
(not shown)
Gauge, Pressure, Air
Regulator, Air
1
32 155665 Union, Adapter
60 222011 Clamp, Grounding
80 ▲ 17P806 Safety Tag (not shown)
▲ Replacement safety labels, signs, tags, and cards are available at no cost.
1
1
1
1
1
1
1
18 3A4797B
300 psi (2.1 MPa, 21 bar) Maximum Working
Pressure
Install at the tank air inlet to remove dirt and moisture from the air supply, or at the tank fluid outlet to remove particles from the paint which could clog the spray gun nozzle.
300 psi (2.1 MPa, 21 bar) Maximum Working
Pressure
3/8” ID; cpld 3/8 npsm(fbe) swivel; neoprene cover
For bottom outlet fluid feeding
200 psi (1.4 MPa, 14 bar) Maximum Working
Pressure
5/16” ID; cpld 1/4 npsm(f) swivel To convert to a heavy duty agitator assembly.
Recommended for fluid viscosities over 1000 cP.
5 psi (0.1 MPa, 1 bar) Working Pressure. 0 to 15 psi
(0 to 0.1 MPa, 0 to 1 bar) regulated pressure range
To convert to a low-pressure regulator assembly.
To replace the pressure tank C-clamp assembly. The kit includes the T-handle, C-clamp, pin, and cotter pin.
100 psi (0.7 MPa, 7 bar) Working Pressure. 0 to 100 psi (0 to 0.7 MPa, 0 to 7 bar) regulated pressure range
To convert to a high-pressure regulator assembly
100 psi (0.7 MPa, 7 bar) Maximum Working Pressure
For air regulation and filtration
Liners fit inside the tank. For ease of cleanup and maintenance.
Material of 304 stainless steel welded construction.
Replaces plastic agitator paddle 236098.
100 psi (0.7 MPa, 7 bar) Working Pressure
To supply atomizing air to a spray gun from the pressure pot
Optional replacement for standard 117571 gasket.
3A4797B 19
Reference Dimension
A
B
C
19 in. (483 mm)
14 in. (356 mm)
12.6 in (320.5 mm)
Reference Dimension
D
5 gallons: 13.2 in. (335 mm)
10 gallons: 18.2 in. (462 mm)
15 gallons: 28.9 in. (735 mm)
E
5 gallons: 30.5 in. (775 mm)
10 gallons: 33.9 in. (860 mm)
15 gallons: 44.6 in. (1132 mm)
20
A
25C539: 25.5 in. (648 mm)
25C540 31.3 in. (794 mm)
25C541 41.5 in. (1054 mm)
B
11.7 in.
(297 mm)
3A4797B
20 34.0
SCFM
15
10
5
0
0 200
A — 20 psi (1.4 bar, 0.14 MPa)
B — 40 psi (2.8 bar, 0.28 MPa)
C — 60 psi (4.1 bar, 0.41 MPa)
D — 80 psi (5.5 bar, 0.55 MPa)
25.5
D
C
17.0
B
8.5
A
400 600
Air Motor RPM
800 1000 1200
0
Standard
Cubic
Meters/Hr
3A4797B 21
22 3A4797B
Actual tank capacities
5-gallon
10-gallon
15-gallon
Tank inlet/outlet sizes
Air inlet size
Fluid outlet size
Bottom outlet size
Wetted parts
8.8 gallons (33 liters)
12.6 gallons (48 liters)
19.3 gallons (72 liters)
1/4–18 npt (m)
3/8–18 npsm (m)
3/4–14 npt (f)
304 and 316 stainless steel, PTFE, nylon, and bronze.
Splashed materials: LDPE, Chloroprene, Santoprene
Weight
25C536
25C537
25C538
25C539
25C540
66 lbs (30 kg)
77 lbs (35 kg)
93 lbs (42 kg)
13 lbs (5.9 kg)
14 lbs (6.4 kg)
25C541
Maximum working pressure, high pressure regulated tank
Maximum recommended operating pressure, agitator
Tank relief valve setting
15 lbs (6.8 kg)
100 psig (0.7 MPa, 7 bar)
70 psig (0.5 MPa, 5 bar)
100 psi (0.7 MPa, 7 bar)
Maximum allowable process fluid temperature
Recommended agitator speed range for adequate agitation
Recommended maximum agitator speed
158° F (70° C)
40–60 rpm
150 rpm
Recommended maximum material viscosity
Sound pressure level at 70 psig, maximum recommended speed
1000 cP
Less than 75 dBA
Santoprene ® is a registered trademark of the Monsanto Co.
WARNING: to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65warnings.ca.gov.
3A4797B 23
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
OR
WARRANTY
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
MERCHANTABILITY
ACCESSORIES,
BY 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.
For the latest information about Graco products, visit www.graco.com.
For patent information, see www.graco.com/patents.
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 3A4797
Graco Headquarters: Minneapolis
GRACO
2019, www.graco.com
Revision B, 2019–04
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