Graco Water Pump 256200 User Manual

Instructions - Parts List  
T1  
312766N  
2:1 Ratio Transfer Pump  
EN  
For use with polyurethane foam, polyurea, and solvent-borne and water-borne materials.  
For professional use only.  
Model 256200  
55 Gallon (200 Liter) Drum Size  
180 psi (1.2 MPa, 12 bar) Maximum Air Working Pressure  
360 psi (2.5 MPa, 25 bar) Maximum Fluid Working Pressure  
Important Safety Instructions  
Read all warnings and instructions in  
this manual. Save these instructions.  
TI17170a  
II 1/2 G T6  
0359  
ITS03ATEX11227  
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Warnings  
Warnings  
The following warnings are for the setup, use, grounding, maintenance, and repair of this equip-  
ment. The exclamation point symbol alerts you to a general warning and the hazard symbol refers  
to procedure-specific risk. Refer back to these warnings. Additional, product-specific warnings  
may be found throughout the body of this manual where applicable.  
WARNING  
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 MSDS’s 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.  
• Always wear impervious gloves when spraying or cleaning equipment.  
PERSONAL PROTECTIVE EQUIPMENT  
You must wear appropriate protective equipment when operating, servicing, or when  
in the operating area of the equipment to help protect you from serious injury, includ-  
ing eye injury, inhalation of toxic fumes, burns, and hearing loss. This equipment  
includes but is not limited to:  
• Protective eyewear  
• Clothing and respirator as recommended by the fluid and solvent manufacturer  
• Gloves  
• Hearing protection  
FIRE AND EXPLOSION HAZARD  
Flammable fumes, such as solvent and paint fumes, in work area can ignite or  
explode. 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).  
• 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.  
• Ground all equipment in the work area. See Grounding instructions.  
• Use only grounded hoses.  
• Hold gun firmly to side of grounded pail when triggering into pail.  
• If there is static sparking or you feel a shock, stop operation immediately. Do  
not use equipment until you identify and correct the problem.  
• Keep a working fire extinguisher in the work area.  
312766N  
3
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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 low-  
est rated system component. See Technical Data in all equipment manuals.  
• Use fluids and solvents that are compatible with equipment wetted parts. See  
Technical Data in all equipment manuals. Read fluid and solvent manufacturer’s  
warnings. For complete information about your material, request MSDS forms  
from distributor or retailer.  
• Check equipment daily. Repair or replace worn or damaged parts immediately  
with genuine manufacturer’s replacement parts only.  
• Do not alter or modify equipment.  
• 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.  
PRESSURIZED EQUIPMENT HAZARD  
Fluid from the gun/dispense valve, leaks, or ruptured components can splash in the  
eyes or on skin and cause serious injury.  
• Follow Pressure Relief Procedure in this manual, when you stop spraying and  
before cleaning, checking, or servicing equipment.  
• Tighten all fluid connections before operating the equipment.  
• Check hoses, tubes, and couplings daily. Replace worn or damaged parts imme-  
diately.  
MOVING PARTS HAZARD  
Moving parts can pinch or amputate fingers and other body parts.  
• Keep clear of moving parts.  
• Do not operate equipment with protective guards or covers removed.  
• Pressurized equipment can start without warning. Before checking, moving, or  
servicing equipment, follow the Pressure Relief Procedure in this manual. Dis-  
connect power or air supply.  
4
312766N  
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Isocyanate Hazard  
Isocyanate Hazard  
To prevent exposing ISO to moisture:  
• Always use a sealed container with a desic-  
cant dryer in the vent, or a nitrogen atmo-  
sphere. Never store ISO in an open  
container.  
Spraying materials containing isocyanates  
creates potentially harmful mists, vapors,  
and atomized particulates.  
• Use moisture-proof hoses specifically  
designed for ISO, such as those supplied  
with your system.  
Read material manufacturer’s warnings and  
material MSDS to know specific hazards and  
precautions related to isocyanates.  
• Never use reclaimed solvents, which may  
contain moisture. Always keep solvent con-  
tainers closed when not in use.  
Prevent inhalation of isocyanate mists,  
vapors, and atomized particulates by provid-  
ing sufficient ventilation in the work area. If  
sufficient ventilation is not available, a sup-  
plied-air respirator is required for everyone in  
the work area.  
• Never use solvent on one side if it has been  
contaminated from the other side.  
• Always lubricate threaded parts with Part  
217374 ISO pump oil or grease when reas-  
sembling.  
To prevent contact with isocyanates, appro-  
priate personal protective equipment, includ-  
ing chemically impermeable gloves, boots,  
aprons, and goggles, is also required for  
everyone in the work area.  
Moisture Sensitivity of  
Isocyanates  
Isocyanates (ISO) are catalysts used in two  
component foam and polyurea coatings. ISO  
will react with moisture (such as humidity) to  
form small, hard, abrasive crystals, which  
become suspended in the fluid. Eventually a  
film will form on the surface and the ISO will  
begin to gel, increasing in viscosity. If used,  
this partially cured ISO will reduce  
performance and the life of all wetted parts.  
The amount of film formation and rate  
of crystallization varies depending on  
the blend of ISO, the humidity, and the  
temperature.  
312766N  
5
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Isocyanate Hazard  
Foam Self-Ignition  
Some materials may become self-igniting if  
applied too thick. Read material  
manufacturer’s warnings and material  
MSDS.  
Keep Components A and B  
Separate  
CAUTION  
To prevent cross-contamination of the  
equipment’s wetted parts, never interchange  
component A and component B.  
Changing Materials  
• When changing materials, flush the equip-  
ment multiple times to ensure it is thor-  
oughly clean.  
• Check with your material manufacturer for  
chemical compatibility.  
• Some materials use catalyst on the A side,  
but some applications may use catalyst on  
the B side.  
• Epoxies often have amines on the B (cata-  
lyst) side. Polyurethanes often have  
amines on the B (resin) side.  
6
312766N  
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Typical Installation  
Typical Installation  
Typical Installation without Circulation  
G Feed Pump Air Supply Lines 3/8 in. (76 mm) ID  
min.  
®
A Reactor Proportioner  
H Waste Containers  
B Heated Hose  
J
Fluid Supply Lines (217382)  
K Feed Pumps  
Agitator  
C Fluid Temperature Sensor (FTS)  
D Heated Whip Hose  
L
®
E Fusion Spray Gun  
M Desiccant Dryer  
N Bleed Lines/Over Pressure Relief  
P Gun Fluid Manifold  
F Proportioner and Gun Air Supply Hose  
K
G
M
K
A
F
N
J
D
E
L
P
H
C*  
B
ti11572a  
* Shown exposed for clarity. Wrap with tape during operation.  
312766N  
7
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Typical Installation  
Typical Installation with Circulation  
G Feed Pump Air Supply Lines 3/8 in. (76 mm) ID  
Key for FIG. 2.  
min.  
A Reactor Proportioner  
B Heated Hose  
C Fluid Temperature Sensor (FTS)  
D Heated Whip Hose  
E Fusion Spray Gun  
J
Fluid Supply Lines (217382)  
K Feed Pumps  
Agitator  
L
M Desiccant Dryer  
N Bleed Lines/Over Pressure Relief  
P Gun Fluid Manifold  
F Proportioner and Gun Air Supply Hose  
K
G
M
K
A
F
N
J
D
E
L
N
P
C*  
B
ti11571a  
* Shown exposed for clarity. Wrap with tape during operation.  
8
312766N  
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Typical Installation  
Typical Installation for Lubrication Applications  
AF Bung Adapter  
AG Grounded Air Hose  
AH Grounded Fluid Hose  
AJ Pump Fluid Inlet  
AK 1/4 npt(f) Pump Air Inlet  
AL 1/2 npt(f) Pump Fluid Outlet  
AM Return Port  
AA Pump Air Regulator  
AB Air Line Lubricator  
AC Air Line Filter  
AD Bleed-Type Master Air Valve (required, for  
pump)  
AE Fluid Drain Valve (required)  
AG  
AK  
AD  
AC  
AA  
AD  
AB  
AL  
AH  
AM  
AE  
AF  
ti11573a  
AJ  
312766N  
9
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Installation  
Installation  
A bleed-type master air valve (AD) is  
required in your system to relieve air trapped  
between it and the air motor when the valve is  
closed (see the WARNING on left). Be sure  
the bleed valve is easily accessible from the  
pump, and is located downstream from the air  
regulator.  
A bleed-type master air valve (AD) and a fluid  
drain valve (AE) are required in your system,  
to help reduce the risk of serious injury,  
including splashing fluid in the eyes or on the  
skin, and injury from moving parts when you  
are adjusting or repairing the pump.  
An air line filter (AC) to remove harmful dirt  
and moisture from the compressed air supply.  
A second bleed-type air valve (AD) isolates  
the air line accessories for servicing. Locate  
upstream from all other air line accessories.  
The bleed-type master air valve (AD) relieves  
air trapped between this valve and the pump  
after the pump is shut off. Trapped air can  
cause the pump to cycle unexpectedly and  
result in serious injury, including amputation.  
Install the valve close to the pump.  
Fluid Line Accessories  
A fluid drain valve (AE) is required in your  
system to relieve fluid pressure in the hose  
and gun (see the WARNING on left). Install the  
drain valve so that it points down and the han-  
dle points up when the valve is opened.  
The fluid drain valve (AE) helps relieve pres-  
sure in the displacement pump, hose, and dis-  
pensing valve when shutting off the pump.  
Actuating the dispensing valve to relieve pres-  
sure may not be sufficient, especially if there  
is a clog in the hose or the dispensing valve.  
System Accessories  
Refer to FIG. 3 and the Accessories on page  
24.  
To ensure maximum pump perfor-  
mance, be sure that all accessories  
used are properly sized to meet your  
system’s requirements.  
Air Line Accessories  
Install the following accessories in the order  
tion Applications, using adapters as neces-  
sary:  
An air line lubricator (AB) provides automatic  
air motor lubrication.  
10  
312766N  
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Setup  
Setup  
1. Apply thread sealant to the male threads of  
the air needle valve (54) and the quick dis-  
connect fitting (55). Install into inlet port  
(AK).  
3. Use labels (25) provided to identify the  
appropriate pump for your material.  
25  
1
Apply thread sealant  
1
ti11649a  
FIG. 6  
55  
4. Lubricate the bung adapter (16) inside  
diameter and mounting threads. Ensure the  
gasket is in place and screw the bung  
adapter (16) securely into the bunghole of  
the drum. Insert the pump through the  
adapter (16) and lock it in place.  
AK  
54  
TI17171a  
FIG. 4  
2. Apply thread sealant to the male outlet fit-  
ting (BC) (not supplied) and insert into the  
outlet port (AL).  
1
Apply thread sealant  
16  
AL  
1
BC  
TI17173a  
FIG. 7  
TI17172a  
FIG. 5  
312766N  
11  
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Setup  
5. Install air line (3/8 in. (76 mm) ID minimum)  
with quick disconnect air coupler (56).  
end of the wire to a true earth ground.  
Make certain to comply with all National,  
State, and Local Electrical Codes.  
56  
Y
AL  
24  
2
AH  
AM  
TI17175a  
FIG. 9  
2. Air compressor: according to manufac-  
turer’s recommendations.  
TI17174a  
FIG. 8  
3. Fluid hoses: use only grounded hoses with  
a maximum of 300 ft (91 m) combined hose  
length to ensure grounding continuity.  
6. Connect a grounded fluid hose (AH) to the  
1/2 npt(f) fluid outlet (AL). In a circulating  
system, remove the pipe plug (2) and con-  
nect a fluid return line to the 3/8 npt(f)  
return port (AM).  
4. Dispensing valve: grounding is obtained  
through connection to a properly grounded  
fluid hose and pump.  
5. Object being sprayed: according to local  
code.  
Grounding  
6. Fluid supply container: according to local  
code.  
7. All solvent pails used when flushing,  
according to local code. Use only metal  
pails, which are conductive. Do not place  
the pail on a non–conductive surface, such  
as paper or cardboard, which interrupts the  
grounding continuity.  
To reduce the risk of static sparking,  
ground the pump and all other equipment  
used or located in the pumping area.  
Check your local electrical code for detailed  
grounding instructions for your area and  
type of equipment. Ground all of this  
equipment.  
8. To maintain grounding continuity when  
flushing or relieving pressure, always hold  
a metal part of the spray gun/dispensing  
valve firmly to the side of a grounded metal  
pail, then trigger the gun/valve.  
1. Pump: Connect Ground Wire (Y) to ground-  
ing screw (24) and tighten the screw  
securely. See FIG. 9. Connect the other  
12  
312766N  
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Operation  
Operation  
Pressure Relief Procedure  
Flushing  
• Flush at the lowest pressure possi-  
ble. Check connectors for leaks and  
tighten as necessary.  
Trapped air can cause the pump to cycle  
unexpectedly, which could result in serious  
injury from splashing or moving parts.  
• Flush with a fluid that is compatible  
with the fluid being dispensed and  
the equipment wetted parts.  
1. Shut off the air to the pump.  
2. Close the bleed-type master air valve (AD).  
3. Hold a metal part of the dispense valve  
firmly to a grounded metal pail. Trigger the  
valve to relieve pressure.  
Trapped air can cause the pump to cycle  
unexpectedly, which could result in serious  
injury from splashing or moving parts.  
4. Open all fluid drain valves in the system,  
having a waste container ready to catch  
drainage. Leave drain valve(s) open until  
you are ready to dispense again.  
1. Follow Pressure Relief Procedure, page  
13.  
2. Place suction tube in grounded metal drum  
containing cleaning fluid.  
5. If you suspect the nozzle or hose is  
clogged or that pressure has not been fully  
relieved after following the steps above,  
VERY SLOWLY loosen the hose end cou-  
pling to relieve pressure gradually, then  
loosen completely. Clear hose or nozzle  
obstruction.  
3. Set pump to lowest possible fluid pressure,  
and start pump.  
4. Hold a metal part of the dispense valve  
firmly to a grounded metal pail. Trigger the  
dispense valve until clean solvent dis-  
penses.  
Flush Pump Before Use  
5. Remove valve from hose.  
The pump is tested with lightweight oil, which  
is left in to protect the pump parts. To prevent  
contamination of the fluid you are pumping,  
flush the pump with a compatible solvent  
before using it. See Flushing, page 13.  
6. Follow Pressure Relief Procedure, and  
remove fluid filter and soak in solvent.  
Replace filter cap.  
7. Cycle the pump slowly for at least 5 min-  
utes, then stop and disconnect the air hose.  
8. Push up on the ball (5) of the intake valve  
(29) to drain the lower part of the pump.  
9. Turn the pump over to drain the upper part  
of the pump.  
312766N  
13  
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Operation  
Corrosion Protection for Pump  
Daily Startup  
1. Verify that the air needle valve (54) is  
closed.  
Caution  
Water or moist air can cause your pump to  
corrode. To help prevent corrosion, NEVER  
leave the pump filled with water or air. After  
normal flushing, flush the pump again with  
mineral spirits solvent (also called white  
spirit) or oil-based solvent, relieve pressure,  
and leave the mineral spirits solvent (also  
called white spirit) in the pump. Be sure to  
follow to the Pressure Relief Procedure on  
page 13.  
2. Connect the air line quick disconnect cou-  
pler (55) to the transfer pump.  
3. Turn on the main air supply.  
4. Slowly open the air needle valve until the  
transfer pump runs slowly.  
5. Use the air needle valve to control the  
pump speed.  
Lubrication  
Caution  
If you are not using an accessory air line lubri-  
cator, manually lubricate the motor daily. Dis-  
connect the air regulator, place about 15 drops  
of light machine oil in the pump air inlet, recon-  
nect the regulator and turn on the air supply to  
dispense oil into the motor.  
Never allow the pump to run dry. A dry pump  
will quickly accelerate to a high speed and  
can damage the pump. If the pump acceler-  
ates quickly or starts running too fast, stop it  
immediately and check the fluid supply. If the  
supply container is empty or air has been  
pumped into the lines, refill the container;  
prime the pump and the lines with fluid, or  
flush and leave it filled with a compatible sol-  
vent. Be sure to eliminate all air from the fluid  
system.  
Do not attempt to operate pump unless it is  
securely mounted in a drum.  
Daily Shutdown  
1. Disconnect the air line quick disconnect  
coupler (55).  
2. When air pressure is bled off, close the air  
needle valve (54).  
14  
312766N  
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Repair  
Repair  
Air Motor Disassembly  
Before you start  
• Have all the necessary repair parts on  
hand.  
To reduce the risk of injury when servicing  
the air motor, always remove cylinder cap  
(34) from air cylinder (8) before removing air  
cylinder from base (13).  
• Clean all parts with a compatible solvent.  
Inspect parts for wear or damage and  
replace as needed.  
1. Unscrew the cylinder cap (34) from the cyl-  
inder (8). To remove the spring (7), pry gen-  
tly under the coils in the direction of the  
helix. Inspect the spring (7) and gasket (27)  
for wear or damage; replace if necessary.  
See FIG. 10.  
• Flush the pump, if possible. Stop the pump  
at the bottom of its stroke. Follow Pressure  
Relief Procedure on page 13 before  
repairing any part of the system.  
• Disconnect the air and the fluid hoses and  
the grounding wire. Remove the pump from  
its mounting and clamp it in a vise.  
34  
7
Required Tools  
27  
• Pliers  
38  
• Set of socket wrenches  
• Set of adjustable wrenches  
• Insert Tool 24B917  
8
13  
TI17176a  
FIG. 10  
2. Unscrew the cylinder (8) from the air motor  
base (13) and lift the cylinder straight off  
the air piston (38). Unscrew by hand or use  
a chain wrench to prevent distortion of the  
cylinder’s shape. See FIG. 10.  
312766N  
15  
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Repair  
3. Use a pliers on the top plate of the air valve  
piston (38) and a wrench on the piston rod  
(35) to unscrew the air valve piston from  
the piston rod. See FIG. 11.  
6. Disconnect the piston rod (35) from the  
pump connecting rod (37) and pull the pis-  
ton rod out of the air motor base (13).  
Remove o-ring (6). Inspect o-ring (6) and  
replace if necessary.  
38  
10  
37  
35  
35  
13  
ti11654a  
9
FIG. 11  
27  
4. Remove washer (10), lower spring (9), and  
gasket (27). Inspect for wear or damage  
and replace as necessary. See FIG. 13.  
6
TI17177a  
FIG. 13  
5. If any valve plate spacers (38d) are dam-  
aged, replace all three to maintain the cor-  
rect clearance between the valve plates  
(18a,18f) and the seats. See FIG. 12.  
Air Motor Reassembly  
1. Reinstall o-ring (6). Reconnect the piston  
rod (35) and the pump connecting rod (37).  
See FIG. 13.  
1
Apply locking compound to threads.  
2
38a  
Torque to 10-14 in-lb (1.1-1.6 N•m)  
2. Reinstall the gasket (11), spring (9), and  
washer (10). Reassemble the piston (38).  
Apply thread sealant to the threads of the  
piston rod (35) and carefully screw the pis-  
ton (38) onto the rod. See FIG. 11 and FIG.  
13.  
38d  
1
When installed, there should be 0.032  
in. (0.8 mm) minimum clearance  
between the washer (10) and the  
shoulder of the piston rod (35).  
38f  
2
1
02125  
FIG. 12  
16  
312766N  
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Repair  
3. Reinstall the spring (7) and gasket (27) on  
the cylinder cap (34) and screw the cap  
onto the cylinder (8). Screw the cylinder  
into the air motor base (13). See FIG. 10.  
2. Unscrew the intake valve housing (29) from  
the piston cylinder (58). Disassemble  
intake valve.  
28  
5
Pump Lower Disassembly  
In mid-2013 the fluid section was  
upgraded to prevent threaded joints  
from loosening due to vibrations.  
Wrench flats were also added to  
improve serviceability.  
58  
TI17179b  
Series A and B pumps can be  
upgraded with repair kit 24R989.  
29  
FIG. 15  
3. Unscrew the piston cylinder (58) from the  
pump frame (36).  
1. Unscrew the air motor connecting ring (15).  
Lay the pump on its side and rotate until  
the ball on the pump connecting rod (37)  
releases from the socket in the motor pis-  
ton rod (35). Separate the motor from the  
displacement pump.  
15  
37  
TI17178b  
Support the Series A and B pump frame with a  
strap wrench. Series C pumps have wrench flats.  
FIG. 14  
To repair the air motor, see Air Motor  
Disassembly on page 15.  
312766N  
17  
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Repair  
4. Push down on the pump connecting rod  
(37) until fluid piston assembly is clear of  
displacement pump frame (36). Pull the  
piston assembly and connecting rod out of  
the frame. Remove the bearing (31) and  
seal (51) from the frame.  
5. Unscrew the piston body (23) from the pis-  
ton valve housing on the fluid piston rod  
(19).  
3
20  
21  
22  
37  
51  
31  
19  
21  
ti11660a  
36  
TI17180b  
23  
Support the Series A and B pump frame with a  
FIG. 17  
strap wrench. Series C pumps have wrench flats.  
FIG. 16  
6. Unscrew the fluid piston rod (19) from the  
pump connecting rod (37). Remove the cup  
packing (17) and bearing (18).  
Scoring or irregular surfaces on the  
connecting rods (37, 19) or polished  
inner wall of the pump frame (36) and  
piston cylinder (58) can cause prema-  
ture packing wear and leaking. To  
check these parts, rub a finger over  
the surface or hold the part up to the  
light at an angle. Replace if neces-  
sary.  
18  
17  
19  
37  
312766D_no seal  
FIG. 18  
18  
312766N  
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Repair  
Pump Lower Reassembly  
1. Lubricate packing (17) and bearing (18)  
with no. 2 lithium-based grease.  
Install seal (51) from the bottom of the  
pump frame (36) with insert tool  
24B917.  
2. Install the bearing (18), and cup packing  
(17) with the lips facing down on the pump  
connecting rod (37). See FIG. 18.  
6. Use a turning motion to maneuver and  
install the pump connecting rod (37) and  
piston back into the pump frame (36). See  
3. Lubricate the piston seals (21) and bearing  
(22) with no. 2 lithium-based grease. Install  
one piston seal (21) with the lips facing  
down, bearing (22), and second piston seal  
(21) with lips facing up on the piston (23).  
Install the backup washer (20) with the  
grooves facing down. See FIG. 17 on page  
18.  
7. Install piston cylinder (58).  
a. For Series A and B Pumps: Support the  
pump frame (36) with a strap wrench.  
Lubricate o-ring (57) lightly with grease  
and apply loctite to threads of pump cyl-  
inder (58). Torque to 10-15 ft-lbs  
(13.5-20 N•m).  
4. Place the ball (3) on top of the piston body  
(23) and screw the piston body and the  
fluid piston rod (19) together. Torque to  
30-35 ft-lb (41-48 N•m). Screw the piston  
valve housing (29) onto the lower connect-  
ing rod (19). See FIG. 17 on page 18.  
36  
57  
58  
5. Install the seal (51), with the lips facing  
down, in the displacement pump frame  
(36), then install bearing (31).  
TI21638b  
FIG. 20: Series A and B  
36  
31  
51  
b. For Series C Pumps: Support the pump  
frame (36) with wrench flats. Lubricate  
o-ring (57) lightly with grease and apply  
loctite to threads of pump cylinder (58).  
Torque to 30-35 ft-lbs (41-48 N•m).  
36  
57  
58  
TI17181a  
FIG. 19  
TI21637a  
FIG. 21: Series C  
312766N  
19  
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Repair  
8. Install intake valve (29).  
a. For Series A and B Pumps: Apply  
thread locker to threads of intake valve  
(29). Torque to 10-15 ft-lbs (13.5-20  
N•m).  
28  
5
58  
TI17179b  
29  
FIG. 22: Series A and B  
b. For Series C Pumps: Lubricate o-ring  
(59) and install thread locking com-  
pound to threads of intake valve (29).  
Torque to 30-35 ft-lbs (41-48 N•m).  
59  
28  
58  
5
TI21636a  
29  
FIG. 23: Series C  
20  
312766N  
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Troubleshooting  
Troubleshooting  
Problem  
Cause  
Solution  
Clean, service.  
The pump fails to operate.  
Dirty or worn air motor.  
Inadequate air supply or  
restricted lines.  
Clean lines or increase the air  
supply (see Technical Data).  
Closed or clogged air valves. Open or clear the valves.  
Clogged fluid hose or valve.  
Clear the hose or valves.  
Service the valves or seals.  
Worn or damaged valves or  
seals.  
The pump operates, but the  
output is low on both strokes.  
Clogged fluid hose or valve.  
Low or empty fluid supply.  
Clear the hose or valves.  
Refill the fluid supply and rep-  
rime the pump.  
Worn or damaged valves or  
seals.  
Service the valves or seals.  
Clear or service the valve.  
Service the valves or seals.  
Clear or service the valve.  
Service the valves or seals.  
The pump operates, but the  
output is low on the down-  
stroke.  
Held open or worn intake  
valve.  
Worn or damaged valves or  
seals.  
The pump operates, but the  
Held open or worn piston  
output is low on the upstroke. valve.  
Worn or damaged valves or  
seals.  
Erratic or accelerated opera-  
tion.  
Low or empty fluid supply.  
Refill the fluid supply and rep-  
rime the pump.  
Broken air motor compression Replace the spring.  
spring.  
Pump slowly moves after fluid Clogged or dirty intake valve  
Clean ball and seat.  
shutoff in downstroke.  
check ball.  
Worn or damaged valves or  
seats.  
Install repair kit.  
Pump slowly moves after fluid Clogged or dirty lower piston  
Clean ball and seat.  
Install repair kit.  
shutoff in upstroke.  
ball or seat.  
Worn or damaged valves or  
seats.  
312766N  
21  
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Parts  
Parts  
T1 2:1 Ratio Transfer Pump, 256200  
34  
31  
2
7
24  
27  
37  
18  
38a  
38b  
8
38c  
38d  
38e  
51  
5
2
38  
38f  
17 2  
38g  
10  
19  
3
35  
4
3
20  
21  
27  
22  
21  
23  
9
5
2
36  
57  
1
28  
1
6
(thick)  
(medium)  
59  
(thin)  
13  
15  
29  
1
58  
16c  
16  
16a  
(brown)  
14  
1
Torque to 30-35 ft-lb  
(41-48 N•m)  
16b  
16d  
2
3
4
5
Lips face down  
Lips face up  
37  
Grooves face down  
Use assembly tool 24B917  
TI17182c  
6. Thin, medium, and thick refers to the relative cross section thickness of the o-rings.  
22  
312766N  
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Parts  
T1 2:1 Ratio Transfer Pump, 256200  
Ref. Part  
Description  
Qty.  
Ref. Part  
Description  
Qty.  
35  
36  
37  
38  
24J678 ROD, piston  
1
1
1
1
1
1
1
3
3
1
3
1
1
1
1
1
1
1
1
2
101748 PLUG, pipe; SST  
101750 BALL, bearing, upper  
101917 BALL, bearing, lower  
156698 O-RING  
157630 SPRING, compression, tapered  
24J673 CYLINDER, air  
1
1
1
1
1
1
1
1
1
1
1
1
24K361 FRAME, pump  
256431 ROD, pump, connector  
24J679 PISTON, valve, air  
3◆  
5◆  
6†  
7†  
8
38a162729 PLATE, exhaust  
38b 189210 PISTON  
38c108357 O-RING  
38d 181485 SPACER  
38e108358 O-RING  
9†  
10  
13  
14  
15  
16  
157633 SPRING, compression  
157872 WASHER, valve  
24J674 BASE, motor, air  
24J675 HOUSING, connecting rod  
24J676 RING, connecting  
253146 ADAPTER, bung; SST (includes  
16a-16g)  
38f  
38g 220884 SCREW, #6-32  
39 172479 TAG, instruction  
181487 PLATE, intake  
51111791 SEAL  
54206264 VALVE, needle  
55169969 FITTING, line, air  
56114558 COUPLER, line, air  
57118403 O-RING  
16a120207 O-RING; inner  
1
1
1
16b 24J526 ADAPTER  
16c 234188 CLAMP, hopper  
16d120998 O-RING; O.D.  
17161788 PACKING, cup; upper piston  
1816C799 BEARING, piston, upper  
5824R988 CYLINDER, piston  
59103414 O-RING  
1
1
1
1
2
1
1
1
1
2
1
1
1
1
19  
20  
256432 ROD, piston, fluid  
161792 RING, back-up  
Complete T1 pump repair kit 24X055 contains repair  
kits 247958 and 24K363.  
21161793 SEAL, piston, lower  
22186648 BEARING, piston, lower  
† Parts included in repair kit 247958.  
Parts included in repair kit 24K363.  
Indicates parts not shown (shipped loose).  
23  
24  
161795 PISTON  
116343 SCREW, ground  
2515K008 LABEL, ID  
27162989 GASKET  
28  
164250 PIN, ball stop  
Parts included in repair kit 24R989. See Pump  
Lower Disassembly, page 17, for instructions.  
2924T262 HOUSING, valve, intake  
31166564 BEARING, connecting rod  
34  
256429 CAP, cylinder, air  
312766N  
23  
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Accessories  
Accessories  
Grounding Clamp  
Part  
Description  
Qty.  
214848 LUBRICATOR, air line; 8 oz (0.24 liter)  
bowl capacity; 1/2 npt(f) inlet and outlet  
1
Part  
Description  
Qty.  
103538 CLAMP, ground  
1
Air Line Filter and Regulator  
Bleed-Type Master Air Valve  
180 psi (1.3 MPa, 13 bar) Maximum Working  
Pressure  
300 psi (2.1 MPa, 21 bar) Maximum Working  
Pressure  
Part  
Description  
Qty.  
202660 FILTER, air; includes gauge and two 1/4  
npt(m) outlet valves, 50 micron filter ele-  
ment with 100 mesh inlet strainer; 1/2  
1
Part  
Description  
Qty.  
107142 VALVE, ball, vented; 1/2 npt(m) inlet x 1/2  
npt(f) outlet  
1
npt(f) inlet; flow rate is over 50 scfm (1.4  
m3/min).  
Air Line Filter  
01355  
250 psi (1.7 MPa, 17.5 bar) Maximum Working  
Pressure  
Part  
Description  
Qty.  
106149 FILTER, air line; 1/2 npt(f) inlet and outlet  
1
Air Line Lubricator  
250 psi (1.7 MPa, 17.5 bar) Maximum Working  
Pressure  
24  
312766N  
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Accessories  
Air Regulator and Gauge  
Fluid Pressure Regulator  
300 psi (2.1 MPa, 21 bar) Maximum Working  
Pressure  
250 psi (1.7 MPa, 17.5 bar) Maximum Working  
Pressure  
Part  
Description  
Qty.  
Part  
Description  
Qty.  
202156 REGULATOR, air; 0-200 psi (0-14 bar)  
regulated pressure range; 3/8 npt(f) inlet  
and outlet  
1
203831 REGULATOR, fluid; carbon steel; 0-60 psi  
(0-4 bar) regulated fluid pressure range; 2  
gpm (7.6 liter/min) maximum flow rate  
209030 REGULATOR, fluid; stainless steel; 5-100  
psi (0.4-7 bar) regulated fluid pressure  
range; 3 gpm (11.3 liter/min) maximum  
flow rate  
1
1
Fluid Drain Valve  
500 psi (3.5 MPa, 35 bar) Maximum Working  
Pressure  
01356  
Part  
Description  
Qty.  
208630 VALVE, ball; 1/2 npt(m) x 3/8 npt(f);  
for non-corrosive fluids; carbon  
steel and PTFE  
237534 VALVE, ball; 3/8 npt(m) x 3/8 npt(f);  
for corrosive fluids; SST and PTFE  
1
Fluid Filter  
300 psi (2.1 MPa, 21 bar) Maximum Working  
Pressure  
1
Part  
Description  
Qty.  
213057 FILTER, 30 mesh  
213058 FILTER, 60 mesh  
213059 FILTER, 100 mesh  
1
1
1
Insert Tool 24B917 (4 in. long)  
0779  
UHMWPE Packing Conversion Kit,  
224017  
01357  
Part  
Description  
Qty.  
111004 PACKING, cup  
111005 PACKING, cup  
161789 BEARING, piston  
161794 BEARING, piston  
405977 MANUAL, instruction  
2
2
1
1
1
312766N  
25  
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Dimensions  
Dimensions  
1/4 npt(f)  
Air Inlet  
1/2 npt(f)  
Fluid Outlet  
43.0 in.  
(109.2 cm)  
51.5 in.  
(130.8 cm)  
33.7 in.  
(85.6 cm)  
TI17170a  
26  
312766N  
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Technical Data  
Technical Data  
Pressure ratio. . . . . . . . . . . . . . . . . . . . . . . . . . 2:1  
Maximum fluid working pressure . . . . . . . . . . . 360 psi (2.5 MPa, 25 bar)  
Maximum air inlet pressure . . . . . . . . . . . . . . . 180 psi (1.2 MPa, 12 bar)  
Pump cycles per 1 gallon (3.8 liters) . . . . . . . . 40  
Maximum recommended pump speed for  
100 cycles per min (150 cycles per min  
continuous operation . . . . . . . . . . . . . . . . . . . . intermittent)  
Gallons (liters) per pump cycle. . . . . . . . . . . . . 0.025 (0.095)  
Air consumption . . . . . . . . . . . . . . . . . . . . . . . . See Performance Chart on page 28.  
Maximum ambient temperature . . . . . . . . . . . . 120° F (50° C)  
Maximum fluid temperature . . . . . . . . . . . . . . . 180° F (82° C)  
Wetted parts. . . . . . . . . . . . . . . . . . . . . . . . . . . Stainless Steel, PTFE, PEEK  
Fluid recirculation port . . . . . . . . . . . . . . . . . . . 3/8 npt(f)  
Air inlet port . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/4 npt(f)  
Fluid outlet port  
1/2 npt(f)  
Weight  
18.5 lbs. (8.4 kg)  
Sound Pressure  
Sound Power, per ISO 9614-2  
88.7 dB(A) at 80 psi (0.55 MPa, 5.5 bar)  
96.8 dB(A) at 80 psi (0.55 MPa, 5.5 bar)  
312766N  
27  
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Technical Data  
Performance Chart  
Calculate Fluid Outlet Pressure  
(black curves)  
Calculate Pump Air  
Consumption (gray curves)  
3
To calculate fluid outlet pressure (MPa/bar/psi)  
at a specific fluid flow (lpm/gpm) and operating  
air pressure (MPa/bar/psi), use the following  
instructions and pump data chart.  
To calculate pump air consumption (m /min or  
scfm) at a specific fluid flow (lpm/gpm) and air  
pressure (MPa/bar/psi), use the following  
instructions and pump data chart.  
1. Locate desired fluid flow along bottom of  
chart.  
1. Locate desired fluid flow along bottom of  
chart.  
2. Follow vertical line up to intersection with  
selected air pressure curve (black). Follow  
horizontally left to read fluid outlet pres-  
sure.  
2. Follow vertical line up to intersection with  
selected air pressure curve (gray). Follow  
horizontally right to read air consumption.  
Key:  
A
B
C
D
180 psi (1.2 MPA, 12.4 bar)  
100 psi (0.7 MPA, 7 bar)  
70 psi (0.5 MPa, 7.8 bar)  
40 psi (0.3 MPa, 2.8 bar)  
350  
24  
(24.5, 245)  
(0.672)  
300  
(21, 210)  
20  
(0.560)  
A
250  
(17.5, 175)  
16  
(0.448)  
200  
(14, 140)  
B
12  
(0.336)  
A
150  
(10.5, 105)  
C
8
100  
(7, 70)  
(0.224)  
D
B
4
50  
(0.112)  
(3.5, 35)  
D
C
0
2.5  
(9.5) (11.4) (13.2) (15.1)  
Fluid Flow in gpm (lpm)  
3
3.5  
4
1
1.5  
2
0
0.5  
(1.9)  
(3.8) (5.7) (7.6)  
28  
312766N  
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Technical Data  
312766N  
29  
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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  
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.  
This manual contains English. MM 312766  
Graco Headquarters: Minneapolis  
International Offices: Belgium, China, Japan, Korea  
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA  
Copyright 2008, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.  
Revised December 2013  
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