Instructions/Parts List
®
TRITON
3D350HP
Diaphragm Pump
Used to pump waterborne and solvent-based paints and catalysts.
Part No. 253707, Series D
3:1 Ratio Air-Operated Double Diaphragm Pump, with BSPP Fittings
Part No. 253708, Series D
3:1 Ratio Air-Operated Double Diaphragm Pump, with npt Fittings
0.6 MPa, 6 bar (88 psi) Maximum Air Input Pressure
1.8 MPa, 18 bar (260 psi) Maximum Fluid Working Pressure
311689G
ENG
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
TI1962A
II2G
Contents
Warning...................................3
Installation ................................5
General Information ......................5
Tighten Threaded Connections ..............5
Mounting the Pump ....................... 6
AirLine ................................ 7
FluidSuctionLine ........................7
FluidOutletLine ......................... 7
Grounding .............................. 9
Operation ................................10
Pressure Relief Procedure ................10
Flush the Pump Before First Use ........... 10
Starting and Adjusting the Pump ...........10
Pump Shutdown ........................10
Maintenance ..............................11
Lubrication ............................11
Flushing and Storage ....................11
Tighten Threaded Connections .............11
Preventive Maintenance Schedule ..........11
Troubleshooting ..........................12
Repair ...................................14
Prepare the Pump for Repair ...............14
General Repair Notes ....................14
FaultIndications ........................14
Tools Required .........................14
Replace the Diaphragms ..................15
Repair the Air Valve ......................17
Replace the Ball Check Valves .............19
Replace the Cylinder and Piston Seals .......21
Parts ....................................23
TechnicalData ............................25
Performance Charts ........................26
Dimensions ...............................27
Wall Mount Hole Pattern ....................27
Torque Sequence ..........................27
Graco Standard Warranty ...................28
GracoInformation .........................28
2
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 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
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
• This equipment is for professional use only.
• Read all instruction manuals, tags, and labels before operating the equipment.
• Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor.
• Do not alter or modify this equipment. Use only genuine Graco parts and accessories.
• Check equipment daily. Repair or replace worn or damaged parts immediately.
• Do not exceed the maximum working pressure of the lowest rated system component. Refer to the
Technical Data on page 25 for the maximum working pressure of this equipment.
• Use fluids and solvents which are compatible with the equipment wetted parts. Refer to the Techni-
cal Data section of all equipment manuals. Read the fluid and solvent manufacturer's warnings.
• Do not use hoses to pull equipment.
• Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose
Graco hoses to temperatures above 82°C (180°F) or below -40°C (-40°F).
• Wear hearing protection when operating this equipment.
• Comply with all applicable local, state, and national fire, electrical, and safety regulations.
PRESSURIZED EQUIPMENT HAZARD
Spray from the gun, hose leaks, or ruptured components can splash fluid in the eyes or on the skin and
cause serious injury.
• Do not point the gun at anyone or at any parts of the body.
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Follow the Pressure Relief Procedure on page 10 whenever you are instructed to relieve pressure;
stop spraying; clean, check, or repair the equipment; and install or clean the spray nozzle.
• Tighten all fluid connections before operating the equipment.
• Check the hoses, tubes, and couplings daily. Replace worn, damaged, or loose parts immediately.
Permanently coupled hoses cannot be repaired; replace the entire hose.
FIRE AND EXPLOSION HAZARD
Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and result
in a fire or explosion and serious injury.
• Ground the equipment and the object being sprayed. Refer to Grounding on page 9.
• If there is any static sparking or you feel an electric shock while using this equipment, stop the
equipment immediately. Do not use the equipment until you identify and correct the problem.
• Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid being
sprayed.
• Keep the work area free of debris, including solvent, rags, and gasoline.
• Eliminate all ignition sources such as pilot lights, cigarettes, and static arcs from plastic drop cloths.
Do not plug in or unplug power cords or turn lights on or off in the spray area.
3
Warning
TOXIC FLUID HAZARD
Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin,
inhaled, or swallowed.
• Know the specific hazards of the fluid you are using.
• Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state and national guidelines.
• Always wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and
solvent manufacturer.
• If a diaphragm fails, fluid is exhausted along with the air. When pumping hazardous fluids, place the
pump in an appropriate container to catch the fluid if a diaphragm ruptures.
MOVING PARTS HAZARD
Moving parts, such as the diaphragm shaft, can pinch or amputate your fingers.
• Before servicing the equipment, follow the Pressure Relief Procedure on page 10 to prevent the
equipment from starting unexpectedly.
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, including 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
4
Installation
General Information
•FIG. 3 on page 8 is only a guide for installing system
components and accessories. It is not an actual system design. Contact your Graco distributor for assistance in designing a system to suit your particular
needs.
• Always use Genuine Graco Parts and Accessories,
available from your Graco distributor. If you supply
your own accessories, be sure they are adequately
sized and pressure-rated for your system.
• Reference numbers and letters in parentheses refer
to the reference numbers in the figures and the
parts list on page 23.
Tighten Threaded Connections
Installation
1. Before each use, check all hoses for wear or damage and replace as necessary.
2. Check to be sure all threaded connections are tight
and leak-free.
3. Check and re-torque all screws and fasteners at
least every two months. Re-torque the fluid cover
screws first, followed by the manifold screws. Note:
Before using pump, loosen fluid cover screws (31)
1-2 turns and then re-torque to 20 N•m (15 ft-lb).
5
Installation
Mounting the Pump
For ease of operation and service, mount the pump so
the air inlet, fluid inlet, and fluid outlet ports are easily
accessible. The inlet port must point down and the outlet
port must point up.
Use 5/8 in. lag screws or bolts for mounting.
To ensure proper operation, mount the pump in a
horizontal position.
Wall Mount Installation
1. Wall Mount Kit 245875 is available. See FIG.1.
2. Be sure the wall can support the weight of the
pump, bracket, hoses and accessories, as well as
the stress caused during operation.
3. Using the wall bracket (B) as a template, drill 5/8 in.
mounting holes in the wall. See page 27 for a wall
mounting diagram. Mount the bracket 1.2-1.5 m (4-5
ft) above the floor.
Floor Stand Installation
Floor Stand Kit 245874 is available. See FIG.2to
assemble.
4. Attach the bracket (B) to the pump (A) with the
screws (C) and washers (D) provided in the kit.
5. Attach the bracket to the wall. Use screws (E) that
are long enough to keep the pump from vibrating
during operation. Be sure the pump is level.
C
D
A
B
E
TI2079B
TI20798
FIG. 2: Floor Stand Installation
FIG. 1: Wall Mount Kit
6
Installation
Air Line
1. Install the air line accessories as shown in FIG.3.
Mount these accessories on the wall or on a
bracket. Be sure the air line supplying the accessories is grounded.
a. Install an air regulator (C) and gauge to control
the fluid pressure. The fluid outlet pressure will
be three times the setting of the air regulator.
b. A bleed-type master air valve (B) is required in
your system to relieve air trapped between it
and the pump when the valve is closed. Trapped
air can cause the pump to cycle unexpectedly
which could result in serious injury including
splashing in the eyes or on the skin, or injury
from moving parts. Be sure the bleed valve is
easily accessible from the pump, and is located
downstream from the air regulator.
c. The air line filter (D) removes harmful dirt and
moisture from the compressed air supply.
Fluid Outlet Line
1. Use conductive fluid hoses (J). See FIG.3.See
Technical Data on page 25 to determine the fluid
outlet size of your pump.
2. Install a fluid drain valve (G) near the fluid outlet.
The fluid drain valve is required to relieve pressure
in the hose and gun. The drain valve reduces the
risk of serious injury, including splashing in the eyes
or on the skin, or injury from toxic fluids.
3. Install a shutoff valve (H) in the fluid outlet line.
d. A second bleed-type air valve (T) isolates the air
line accessories for servicing. Locate upstream
from all other air line accessories.
2. Install a grounded, flexible air hose (A) between the
accessories and the pump air inlet. See Technical
Data on page 25 to determine the air inlet size of
your pump. Use a minimum 13 mm (1/2 in.) ID air
hose.
3. Screw an air line quick disconnect coupler (N) onto
the end of the air hose (A), and screw the mating fitting into the pump air inlet snugly. Do not connect
the coupler to the fitting until you are ready to operate the pump.
Fluid Suction Line
• Use conductive hoses (E). See FIG.3.
• See Technical Data on page 25 to determine the
fluid inlet size of your pump.
• For maximum suction lift (wet and dry) information,
see Technical Data on page 25.
7
Installation
T
D
BC
Y
L
A
N
J
S
H
S
P
R
S
E
M
R
S
G
K
F
Key:
A Air Supply Line
B Bleed-Type Master Air Valve
C Air Regulator
D Air Line Filter
E Fluid Suction Line
F Fluid Supply
G Fluid Drain Valve
H Fluid Shutoff Valve
J Fluid Line
FIG. 3. Typical Installation
TI1961B
K Mounting Bracket
L Internal Air Relief Valve
M Muffler
N Air Line Quick Disconnect Coupler
P Pump Air Piston
R Pump Diaphragms
S Pump Ball Checks
T Air Shutoff Valve
Y Pump Ground Wire
8
Grounding
Installation
Before operating the pump, ground the system as
explained below. Read the warnings on page 3.
Ground all of this equipment:
• Pump: use a ground wire and clamp. See FIG.4.
Loosen the grounding screw (X). Insert one end of a
1.5 mm
2
(12 ga) minimum ground wire (Y) into the
pump’s grounding clamp (8) and tighten the screw
(X) securely. Connect the other end of the wire to a
true earth ground. For a ground wire and clamp,
order Part No. 238909.
• Air and fluid hoses: Use only electrically conductive
hoses.
• Air compressor: Follow manufacturer’s recommendations.
• Fluid supply drum: Follow your local code.
• All solvent pails used when flushing: Follow your
local code. Use only metal pails, which are conductive, placed on a grounded surface. Do not place the
pail on a nonconductive surface, such as paper or
cardboard, which interrupts the grounding continuity.
X
Y
TI2085A
FIG. 4. Grounding the Pump
9
Operation
Operation
Pressure Relief Procedure
Read the warnings on page 3, and follow the Pressure Relief procedure below whenever you:
• are instructed to relieve pressure
• stop spraying
• check or service any of the equipment
• install or clean the fluid nozzle.
1. Shut off the air to the pump.
2. Open the dispensing valve, if used.
3. Open the fluid drain valve to relieve all fluid pressure, having a container ready to catch the drainage.
Flush the Pump Before First Use
7. With the pump air regulator (C) closed, open the
bleed-type master air valve (B).
8. If the fluid hose has a dispensing device, hold it
open while continuing with the following step.
9. Slowly open the air regulator (C) until the pump
starts to cycle. Allow the pump to cycle slowly until
all air is pushed out of the lines and the pump is
primed.
If you are flushing, run the pump long enough to thoroughly clean the pump and hoses. Close the air regulator. Remove the suction tube (E) from solvent and place
it in the fluid to be pumped.
Operating the pump beyond the maximum air
input pressure will decrease diaphragm life.
Do not operate the pump dry for long periods of
time to avoid reducing diaphragm life.
Pump Shutdown
The pump was tested in oil. If the oil could contaminate
the fluid you are pumping, flush the pump thoroughly
with a compatible solvent. Follow the steps under Start-
ing and Adjusting the Pump.
Starting and Adjusting the Pump
1. Be sure the pump is properly grounded. Refer to
Grounding on page 9.
2. Check all fittings to be sure they are tight. Be sure to
use a compatible liquid thread sealant on all male
threads.
3. Re-torque all screws and fasteners before startup.
Re-torque the fluid cover screws first, followed by
the manifold screws.
4. Place the suction tube (E) in the fluid to be pumped.
5. Place the end of the fluid hose (J), see FIG.3,into
an appropriate container.
6. Close the fluid drain valve (G). Open the fluid shutoff
valve (H).
Short Term Shutdown
For a short term shutdown, relieve the pressure (see at
left).
Long Term Shutdown
For a long term shutdown, such as several hours or
overnight:
1. Flush the pump thoroughly.
2. Leave compatible solvent in the pump.
3. Relieve the pressure (see at left).
10
Maintenance
Maintenance
Lubrication
CAUTION
Lubrication of the pump is not required. Oil is
exhausted through the muffler, which could contaminate the fluid supply or other equipment. Excessive
lubrication can also cause the pump to malfunction.
Flushing and Storage
Flush the pump with a compatible solvent often enough
to prevent the fluid you are pumping from drying in the
pump and damaging it. Follow the Pressure Relief Pro-
cedure on page 10 before storing it for any length of
time.
Tighten Threaded Connections
1. Before each use, check all hoses for wear or damage, and replace as necessary.
2. Check to be sure all threaded connections are tight
and leak-free.
3. Check and re-torque all screws and fasteners at
least every two months. Re-torque the fluid cover
screws first, followed by the manifold screws.
NOTE: Before using pump, loosen fluid cover
screws (31) 1-2 turns and then re-torque to 20 N•m
(15 ft-lb).
Preventive Maintenance Schedule
Establish a preventive maintenance schedule, based on
the service history of the pump. This is especially important for prevention of spills or leakage due to diaphragm
failure.
11
Troubleshooting
Troubleshooting
Relieve the pressure (page 10) before checking or
servicing the equipment.
Problem Cause Solution
Pump cycles at stall or fails to hold
pressure at stall.
Pump will not cycle, or cycles once
and stops.
Pump operates erratically. Clogged suction line. Inspect; clear.
Air bubbles in fluid. Loose suction line. Tighten.
Pump running irregularly. Stroke frequency dropping, coming to standstill.
Air escapes continually from muffler. Damaged air valve cup (47) or seat
Pump does not start, or pressure
fluctuates.
Worn check valve balls (56), seats
(53), or ball guides (57).
Stuck or dirty air valve. Disassemble and clean air valve. See
Check valve ball (56) severely worn
and wedged in seat (53).
Check valve ball (56) wedged in seat
(53) due to overpressurization.
Clogged fluid dispensing valve. Relieve pressure and clear valve.
Pinched hose line. Check lines.
Sticky or leaking check valves. Clean or replace balls (56) and seats
Ruptured diaphragm (14). Replace. See page 15. Do not
Restricted exhaust. Remove restriction.
Ruptured diaphragm (14). Replace. See page 15.
Worn parts. Replace worn parts. Check com-
Icing caused by: compressed air too
moist, stroke frequency too high,
local temperature too low.
(33).
Foreign matter inside pump. Check air filter.
Worn check valve seats (53). Replace. See page 19.
Inlet strainer blocked, maximum suction exceeded, hose or seal defective.
Contaminated fluid. Pump installed or
operated incorrectly.
Check all possible problems and causes before
disassembling the pump.
Replace. See page 19.
page 17. Use filtered air.
Replace ball and seat. See page 19.
Replace. See page 19. Do not
exceed the maximum fluid working
pressure, see page 25.
(53). See page 19.
exceed maximum air input pressure.
pressed air supply.
Remove ice by changing operating
conditions.
Replace damaged parts. See page
17.
Clean strainer. Replace defective
parts.
Check fluid supply. Follow installation and operation instructions in this
manual.
12
Outlet Manifold Tube
Troubleshooting
Fluid Outlet
Optional Fluid Outlet
Outlet Ball Check
Diaphragm
Air Piston
Outlet Ball Check
Diaphragm
Inlet Ball Check
Fluid Inlet
Carriage
Diaphragm Shaft
Inlet Manifold Tube
Inlet Ball Check
Air Valve
Air Valve Gasket
Air Valve Cup
FIG. 5. Cutaway Views of Pump and Air Valve
Driver Carriage
Carriage
Air Inlet
Diaphragm Shaft
13
Repair
Repair
Prepare the Pump for Repair
1. Flush the pump if possible, page 11.
2. Relieve the pressure, page 10.
3. Disconnect the air and fluid hoses.
4. Remove the pump from its mounting and take it to
the work bench.
General Repair Notes
• A qualified technician should make all repairs.
• Inspect and clean all parts thoroughly before
reassembly.
• Use only genuine Graco replacement parts,
available from your Graco distributor.
• Be careful not to damage sealing surfaces.
• Replace all o-rings removed from the pump.
• Follow all lubrication, torque, and repair notes
in the repair procedures.
• Do not use silicone or silicone-based grease.
Tools Required
• 4, 5, 6, 8 and 10 mm allen wrenches
• 13 mm open end wrench
• 28 mm open end wrench, or adjustable wrench
• two flat blade screwdrivers
• #2 Phillips screwdriver
• internal snap ring pliers
• dowel rod (wood or plastic)
• o-ring pick
• diaphragm installation tool (part number 261695)
Fault Indications
During operation, check for indications of worn or damaged parts, such as:
• major pressure fluctuations
• change in the pump’s operating sound
• irregular operation.
Always replace worn or damaged parts immediately to
prevent additional damage.
14
Repair
Replace the Diaphragms
Diaphragm Repair Kit 243152 is available. Parts
included in the kit are marked, for example (14*).
For the best results, replace both diaphragms and
all o-rings (13*).
Diaphragm Repair Tool 261695 is available to
assist with diaphragm installation.
Operating the pump beyond the maximum air
input pressure will decrease diaphragm life.
Do not operate the pump dry for long periods of
time to avoid reducing diaphragm life.
Disassembly
1. Prepare the pump for repair, page 14.
2. Remove the screws (31) from one fluid cover (1).
Pull the cover assembly off, separating it from the
fluid tubes (12). See FIG.6.
2. Depress the first diaphragm (14*) using the diaphragm repair tool and install the opposite diaphragm (14*) by hand.
3. Remove the o-rings (13) from the fluid tubes (12)
and replace with new o-rings (13*) from the kit.
4. Install the cover assembly that has the tube housings (4) attached. The arrow must point toward the
top of the pump and the air inlet (40) must be to the
right of the cover (1). Torque the screws (31) to 20
N•m (15 ft-lb).
5. Lubricate the o-rings (13*) and ends of the fluid
tubes (12) and push the tubes into the tube housings (4) so they are securely seated.
6. Install the cover assembly that has the fluid inlet (3)
and outlet (2) housings attached. The arrow must
point toward the top of the pump. Seat the cover
securely on the fluid tubes (12). Torque the screws
(31) oppositely and evenly to 20 N•m (15 ft-lb).
3. Remove the fluid tubes (12) from the other cover
assembly.
4. Remove the screws (31) and the remaining fluid
cover (1).
5. Install diaphragm (14) using the diaphragm repair
tool to force the shaft all the way to one side. Press
the short, wide boss on the tool directly on the diaphragm. The part number on the tool should face
away from the pump. See FIG.6.
6. Unscrew the opposite diaphragm (14) from the shaft
by turning it counterclockwise by hand.
7. Push the shaft in the opposite direction by installing
the diaphragm repair tool on the opposite side of the
pump. Press the tall boss on the tool directly on the
pump shaft. The part number on the tool should
face toward the pump. See FIG.6.
8. Unscrew the remaining diaphragm (14) from the
shaft by turning it counterclockwise by hand.
Reassembly
1. While the diaphragm repair tool holds the shaft to
one side, screw the new diaphragm (14*) into the
shaft by hand. See FIG.6.
15
Repair
1
Lubricate.
2
Torque to 20 N•m (15 ft-lb)
13*
12
1
2
2
1
13*
31
14*
1
14*
4
3
40
13*
1
1
13*
31
2
12
1
TI1959A
4
FIG. 6. Replace the Diaphragms
TI8632A
Diaphragm Repair Tool 261695
TI8633A
16
Repair
Repair the Air Valve
Air Valve Repair Kit 243153 is available. Parts
included in the kit are marked, for example (33†).
For the best results, use all parts in the kit.
Disassembly
1. Prepare the pump for repair, page 14.
2. Remove the screws (31) from one fluid cover (1).
Pull the cover assembly off, separating it from the
fluid tubes (12). See F
3. Remove the screws (31) and the other fluid cover
(1) assembly, keeping the fluid tubes (12) attached.
4. Remove the air inlet fitting (40).
5. Remove the screws (68) and the top (67) and bottom (66) covers.
6. Remove the diaphragms (14), page 15.
7. Remove the four screws (38) and washers (37), air
valve cover (36), and gasket (35).
8. Pry the air valve seat (33) out of the housing (5),
using two screwdrivers inserted in the recesses on
the seat. Remove the o-rings (43, 44, and 80) from
the seat.
9. Remove the cup (47) from the center housing.
10. Remove the two clips (46) from the shaft (17).
IG.7.
Reassembly
Lubricate all o-rings when reassembling the
pump.
1. Install the o-rings (19†, 20†) on the three bearings
(18). Install the bearings in the center housing (5),
cylinder inner cover (6), and cylinder outer cover
(11). Secure with the clips (21).
2. Install the carriage (45) in the center housing (5),
oriented as shown.
3. Install the o-rings (49†) on the driver carriage
(48†).Push the driver carriage into its bore, oriented
as shown.
4. Install the o-rings (52†) on the air valve plugs (51).
Install the plugs and secure with clips (50).
5. Check that the o-rings (42 and 28) are in place in
the center housing (5).
6. Check that the o-rings (22 and 25) are in place on
the cylinder inner cover (6).
7. Check that the o-ring (23), packing (26), and quad
ring (32) are in place on the piston (16).
8. Insert the air valve tube (24) through the cylinder
inner cover (6). Install the cover on the center housing (5). Seat the air valve tube securely in the center
housing, oriented with the spring pin (27). Torque
the screws (29) to 8 N•m (5.9 ft-lb).
11. Remove the screws (30), cylinder outer cover (11),
and cylinder (7). Do not lose the o-rings (22).
12. Pull out the piston (16) and shaft assembly.
13. Remove the screws (29) and inner cover (6).
14. Remove the clips (50) from the air valve plugs (51).
Thread a screw (38) partially into each plug and pull
the plugs out. Remove the o-rings (52).
15. Push the driver carriage (48) out of its bore.
Remove the o-rings (49).
16. Remove the clips (21) and push the bearings (18)
out of the center housing (5), inner cover (6), and
outer cover (11). Remove the o-rings (19, 20) from
the bearings.
17. Remove the carriage (45).
9. Lubricate the diaphragm shaft (17), then slide it into
the center housing (5), guiding the air valve tube
(24) through the hole in the piston. Install the two
clips (46) on the shaft.
10. Liberally grease the inside of the cylinder (7) and
the piston o-ring (23). Install the cylinder, making
sure it is seated on the inner cover (6).
11. Install the o-ring (22) on the cylinder outer cover
(11). Install the outer cover. Torque the screws (30)
to 15 N•m (11 ft-lb).
17
Repair
12. Install the cup (47†) in the center housing.
13. Install the o-rings (43†, 44†, and 80†) on the air
valve seat (33†). Lubricate the o-rings. Install the
seat in the center housing (5), oriented with the
spring pin (34).
14. Install the gasket (35†), cover (36), and screws and
washers (38, 37). Torque to 6 N•m (4.4 ft-lb).
15. Reinstall the diaphragms (14), page 15.
4
38
37
36
35†
67
71
50
51
†52
42
1
†49
1
5
†33
1
†80
34
1
1
†43
1
22
†44
†47
45
6
24
25
16. Install the fluid covers (1). The arrows must point up.
Torque the screws (31) to 20 N•m (15 ft-lb).
17. Check that the felt strips (71) are in place on the
inside of the top (67) and bottom (66) covers. Install
the covers. The hole for the air inlet fitting must align
with the port in the center housing (5). Tighten the
screws (68).
18. Install the air inlet fitting (40).
1
Lubricate.
2
Torque to 8 N•m (5.9 ft-lb)
3
Torque to 15 N•m (11 ft-lb)
4
Torque to 6 N•m (4.4 ft-lb)
5
Torque to 20 N•m (15 ft-lb)
1
31
5
20†
48†
18
19†
21
12
14
12
40
21
19†
18
3
1
31
5
FIG. 7. Repair the Air Valve
30
20†
29
14
28
27
1
†52
51
16
26
32
50
17
1
2
68
15
1
20†
7
18
22
1
71
21
19†
11
23
46
1
68
66
TI1958B
18
Repair
Replace the Ball Check Valves
Ball Check Valve Repair Kit 243154 is available.
Parts included in the kit are marked, for example
(56‡). For the best results, use all parts in the kit.
Sealing Ring Repair Kit 243156 is available. Parts
included in the kit are marked, for example (55★).
For the best results, use all parts in the kit.
Disassembly
1. Prepare the pump for repair, page 14.
2. Remove the screws (38) and take the tube assemblies off the pump. See FIG.8.
3. Remove the springs (65), ball guides (57), and balls
(56) from the outlet (top) check valves.
If the ball is stuck in the seat, pry it loose with a
screwdriver.
2. Install the outlet tube assembly. Torque the screws
(38) to 10 N•m (7.4 ft-lb).
CAUTION
The inlet ball check valves must be installed exactly
as shown in F
• turned down end of spring (65) must face the ball
guide (57)
• open end of ball guide (57) must face the ball (56)
• beveled side of seat (53) must face the ball (56)
• wide end of seal (58) must face the seat (53)
3. Install the inlet check valves into the fluid covers (1):
a spring (65‡), ball guide (57‡), ball (56‡), seat
(53‡), flat seal (59★), and seal (58).
4. Install the inlet tube assembly. Torque the screws
(38) to 10 N•m (7.4 ft-lb).
IG.8:
Some parts will be reused, so be careful not to
drop or lose parts.
4. Insert a dowel through the outlet seats (53) and
push the inlet (bottom) valve parts (65, 57, 56, 53,
58) out of the pump. Remove the flat seal (59).
5. Insert a dowel through the inlet ports and push the
outlet valve seats (53) and sleeves (54) out of the
pump. Remove the flat seals (55, 59).
Reassembly
CAUTION
The outlet ball check valves must be installed exactly
as shown in FIG.8:
• beveled side of seat (53) must face the ball (56)
• beveled end of sleeve (54) must face the seat (53)
• open end of ball guide (57) must face the ball (56)
• turned down end of spring (65) must face the ball
guide (57)
1. Install the outlet check valves into the fluid covers
(1): a flat seal (59★), seat (53‡), seal (59★), sleeve
(54), ball (56‡), ball guide (57‡), spring (65‡), and
seal (55★).
19
Repair
1
Torque to 10 N•m (7.4 ft-lb)
‡65
‡57
‡56
★55
54
★59
‡53
★59
1
38
2
38
1
12
4
65‡
57‡
56‡
55★
54
59★
53‡
59★
1
1
‡65
‡57
‡56
‡53
★59
58
4
1
FIG. 8. Replace the Ball Check Valves
38
12
65‡
57‡
56‡
53‡
59★
58
3
38
1
TI1960A
20
Repair
Replace the Cylinder and Piston Seals
Cylinder Seal Repair Kit 243155 is available.
Parts included in the kit are marked, for example
(22◆). For the best results, use all parts in the kit.
Disassembly
1. Prepare the pump for repair, page 14.
2. Remove the screws (38) and tube assemblies. See
FIG.9.
3. Disassemble the ball check valves, page 19. The flat
seals (55, 59) are included with this repair kit.
4. Remove the air inlet fitting (40).
5. Remove the screws (68) and the top (67) and bottom (66) covers.
6. Remove the screws (31) and fluid covers (1).
7. Remove the diaphragms (14), page 15.
8. Remove the four screws (38) and washers (37), the
air valve cover (36), and the gasket (35).
9. Pry the air valve seat (33) out of the center housing
(5), using two screwdrivers inserted in the recesses
on the seat.
10. Remove the o-rings (80) from the housing.
11. Remove the cup (47) from the housing.
To further disassemble and repair the air valve,
see page 17.
12. Remove the two clips (46) from the shaft (17).
13. Remove the screws (30), cylinder outer cover (11),
cylinder (7), and cylinder o-rings (22). Inspect the
inner wall of the cylinder for damage.
14. Pull the piston (16) and shaft out of the center housing (5). Remove the piston o-ring (23), quad ring
(32), and packing (26). Inspect the piston and shaft
for damage. If these parts need replacement,
unscrew the piston shaft (15) from the diaphragm
shaft (17) and remove the piston (16).
15. Remove the screws (29) and cylinder inner cover
(6). Remove the air valve tube (24) and o-ring (25)
from the inner cover. Do not lose the o-ring (25).
16. Remove the o-rings (28, 42) from the center housing (5). Do not lose the o-ring (28).
Reassembly
Lubricate all o-rings during reassembly.
1. Install the o-rings (42◆, 28) in the housing (5).
2. Install the o-rings (22◆, 25) on the inner cover (6).
3. Install the o-ring (23◆), packing (26◆), and quad
ring (32◆) on the piston (16).
4. Insert the air valve tube (24) through the inner cover
(6). Install the cover on the housing (5). Seat the
tube securely in the housing, oriented with the
spring pin (27). Torque the screws (29) to 8 N•m (5.9
ft-lb).
5. If the piston (16) was removed from the piston shaft
(15), reassemble a washer (61), the piston, and
another washer on the shaft. Screw the diaphragm
shaft (17) onto the piston shaft.
6. Lubricate the shaft (17) and slide it into the housing
(5), guiding the tube (24) through the hole in the piston. Install the two clips (46) on the shaft.
7. Liberally grease the inside of the cylinder (7) and
the piston o-ring (23◆). Seat the cylinder securely
on the inner cover (6).
8. Install the o-ring (22◆) on the outer cover (11).
Install the outer cover and torque the screws (30) to
15 N•m (11 ft-lb).
9. Install the cup (47) in the center housing (5).
10. Install the o-rings (80). Check that the o-rings (43,
44) are in place on the air valve seat (33). Lubricate
the o-rings. Install the seat in the center housing (5),
oriented with the spring pin (34).
11. Install the gasket (35), cover (36), and screws and
washers (38, 37). Torque to 6 N•m (4.4 ft-lb).
21
Repair
12. Install the diaphragms (14), page 15.
13. Install the fluid covers (1). The arrows must point up.
Torque the screws (31) to 20 N•m (15 ft-lb).
14. Check that the felt strips (71) are in place on the
inside of the top (67) and bottom (66) covers. Install
the covers. The hole for the air inlet fitting must align
with the port in the center housing (5). Tighten the
screws (68).
1
Lubricate.
2
Torque to 8 N•m (5.9 ft-lb)
3
Torque to 15 N•m (11 ft-lb)
4
Torque to 6 N•m (4.4 ft-lb)
5
Torque to 20 N•m (15 ft-lb)
6
Torque to 10 N•m (7.4 ft-lb)
38
4
37
71
43
44
47
36
35
33
80
34
65
1
6
22◆
25
24
42◆
57
56
★◆55
54
★◆59
53
29
2
27
51
50
28
1
1
30
31
5
3
65
15. Install the air inlet fitting (40).
16. Install the flat seals (55◆,59◆) and the other ball
check parts, see page 19.
17. Install the tube assemblies. Torque the screws (38)
to 10 N•m (7.4 ft-lb).
67
6
38
12
50
51
53
5
48
14
40
32◆
1
17
1
61
61
1
◆26
46
15
23◆
1
16
68
1
22◆
7
1
38
12
6
11
65
57
56
55◆★
54
59◆★
1
65
57
56
53
59◆★
58
31
5
57
56
53
59◆★
58
FIG. 9. Replace the Cylinder and Piston Seals
22
14
71
66
68
TI2074B
Parts
Part No. 253707 includes items 1-81
Part No. 253708 includes items 1-8,10-59, 61-81
Parts
60
38
81
10
‡65
‡57
‡56
★◆55
54
★◆59
1
31
‡65
‡57
‡56
‡53
10
13*
7
19†
61
68
12
‡53
21
14*
62
63
64
32◆
40
61
23◆
16
13*
12
13*
67
37
36
35†
†33
80
38
34
4
8
9
9
†43
22◆
53‡
21
71
†44
19†
30
59◆★
58
4
38
6
18
†47
25
20†
14*
45
24
29
21
42◆
17
19†
18
27
50
51
†52
†49
5
28
†52
51
46
50
20†
13*
48†
18
20†
39
◆26
15
22◆
11
66
71
38
2
65‡
57‡
56‡
55◆★
54
59◆★
1
31
65‡
57‡
56‡
53‡
59◆★
58
3
60
38
68
TI1957B
23
Parts
Part No. 253707 includes items 1-81
Part No. 253708 includes items 1-8,10-59, 61-81
Ref.
Part No. Description Qty
Ref.
Part No. Description Qty
No.
1 15A010 COVER, fluid 2
2 15A000 HOUSING, outlet, fluid; for 253707 1
15A003 HOUSING, outlet, fluid; for 253708 1
3 15A002 HOUSING, inlet, fluid; for 253707 1
15A003 HOUSING, inlet, fluid; for 253708 1
4 15A001 HOUSING, tube, fluid; for 253707 2
15A004 HOUSING, tube, fluid; for 253708 2
5 15A032 HOUSING, center 1
6 15A051 COVER, inner, cylinder 1
7 15A050 CYLINDER 1
8 116343 CLAMP, grounding 1
9 116898 WASHER; for 253707 only 2
10 116902 PLUG, socket-hd; for 253707 2
112306 PLUG, pipe; for 253708 2
11 15A052 COVER, outer, cylinder 1
12 15A037 TUBE, fluid 2
13* O-RING; chemically resistant
fluoroelastomer
14* DIAPHRAGM; PTFE 2
15 15A042 SHAFT, piston 1
16 15A038 PISTON 1
17 15A043 SHAFT, diaphragm 1
18 15A006 BEARING 3
19† O-RING; fluoroelastomer 3
20† O-RING; nitrile 3
21 117021 CLIP, c-spring 3
22◆ O-RING; nitrile 2
23◆ O-RING; nitrile 1
24 15A031 TUBE, air valve 1
25 117006 O-RING; nitrile 1
26◆ PACKING, PTFE 1
27 117023 PIN, spring 1
28 117012 O-RING; fluoroelastomer 2
29 117028 SCREW, socket-hd; M6 x 16 4
30 117034 SCREW, socket-hd; M8 x 100 4
31 116900 SCREW, cap, socket-hd; M10 x 25 16
32◆ RING, quad; nitrile 1
33† SEAT, air valve 1
34 117024 PIN, spring 1
35† GASKET 1
36 15A035 COVER, air valve 1
37 117018 WASHER 4
No.
38 117029 SCREW, cap, socket-hd; M6 x 25 12
39 117019 VALVE, safety, relief 1
40 15A790 FITTING, inlet, air; for 253707 1
15A044 FITTING, inlet, air; for 253708 1
42◆ O-RING; nitrile 1
43† O-RING; nitrile 1
44† O-RING; nitrile 2
45 15A033 CARRIAGE 1
46 117022 CLIP, c-spring 2
47† CUP, air valve 1
48† CARRIAGE, driver 1
49† O-RING; nitrile 2
50 117020 CLIP, c-spring 2
51 15A009 PLUG, air valve 2
52† O-RING; nitrile 2
53‡ SEAT, valve 4
54 15A026 SLEEVE, ball guide 2
4
55◆★ SEAL, flat; UHMWPE 2
56‡ BALL, 30 mm; acetal 4
57‡ GUIDE, ball 4
58 15A036 SEAL; acetal homopolymer 2
59◆★ SEAL, flat; UHMWPE 6
60 15A005 BUSHING; for 253707 only 2
61 15A482 WASHER 2
62 15A016 DAMPENER, noise 2
63 15A028 PLATE 2
64 117026 SCREW, cap, socket-hd; M5 x 12 4
65‡ SPRING, compression 4
66 15J373 COVER, bottom 1
67 15J375 COVER, top 1
68 116595 SCREW; M4 x 0.7 8
70▲ 188621 LABEL, warning (not shown) 1
71 15A008 DAMPENER, felt 2
80† 158486 O-ring, nitrile 2
81 111307 WASHER 1
* Included in Diaphragm Repair Kit 243152.1
† Included in Air Valve Repair Kit 243153.
‡ Included in Ball Check Valve Repair Kit 243154.
◆ Included in Cylinder Seal Repair Kit 243155.
★ Included in Sealing Ring Repair Kit 243156.
NOTE: ▲ Replacement Warning labels, signs, tags,
and cards are available at no cost.
24
Technical Data
Technical Data
Category Data
Maximum fluid working pressure 1.8 MPa, 18 bar (260 psi)
Maximum air input pressure 0.6 MPa, 6 bar (88 psi)
Ratio 3:1
Maximum recommended flow rate (continuous duty) 7.6 liters/min (2.0 gpm)
Maximum recommended cycle rate 20 cycles/minute
Maximum flow rate 114 liters/min (30 gpm)
Volume per cycle (double stroke) 350 cc/cycle (11 oz/cycle)
Operating temperature range 10-80°C (50-176°F)
Dry suction lift 2.5 m (8.2 ft)
Wet suction lift 6.7 m (22 ft)
Air inlet size Model 253707: 1/2 BSPP(f)
Model 253708: 1/2 npt(f)
Fluid inlet size Model 253707: 1 in. BSPP(f)
Model 253708: 1 in. npt(f)
Fluid outlet size Model 253707: 1 in. BSPP(f)
Model 253708: 1 in. npt(f)
Sound power level at 15 cycles/min, 0.6 MPa, 6 bar (88
psi) air inlet pressure. Tested per ISO 9614-2.
Weight (approximate) 29 kg (64 lb)
Wetted parts 303 and 316 stainless steel, acetal, fluorocarbon,
66 dB(A)
ultra-high molecular weight polyethylene, PTFE
25
Performance Charts
Performance Charts
CYCLES PER MINUTE
1.9, 19
(280)
1.7, 17
(240)
1.4, 14
(200)
1.0, 11
(160)
0.8, 8
(120)
0.6, 5.5
(80)
0.3, 2.8
(40)
FLUID OUTLET PRESSURE MPa, bar (psi)
22 43 65 87 109 130 152 174 196 217 2390
A
B
C
0
7.6 15.1 22.7 30.2 37.8 45.4 52.9 60.5 68.0 75.6 83.2
(2) (4) (6) (8) (10) (12) (14) (16) (18) (20) (22)
FLUID FLOW lpm (gpm); tested in No. 10 weight oil
Recommended Performance for Continuous Duty
CYCLES PER MINUTE
1.9, 19
(280)
1.7, 17
(240)
A
Key
1.2
(42)
1.0
(35)
A
B
C
2251116 273338430
0.8
(28)
0.6
(21)
0.4
(14)
0.2
(7)
0
A = 0.6 MPa, 6 bar (88 psi)
B = 0.4 MPa, 4 bar (60 psi)
C = 0.2 MPa, 2 bar (30 psi)
/min (scfm)
3
AIR CONSUMPTION m
= Fluid Flow
= Air Consumption
26
0.6, 5.5
0.3, 2.8
FLUID OUTLET PRESSURE MPa, bar (psi)
1.4, 14
(200)
1.0, 11
(160)
0.8, 8
(120)
(80)
(40)
B
C
(1.5)
7.6 15.13.81.9 5.7 9.5 11.4
(2.0) (4.0)(1.0)(0.5)
(2.5) (3.0) (3.5)
13.3
FLUID FLOW lpm (gpm); tested in No. 10 weight oil
Dimensions
Fluid Outlet;
see page 25
for sizes.
360 mm (14.2 in.)
see page 25
for sizes.
Dimensions
213 mm (8.4 in.)
M8 Mounting
Holes
Air Inlet; see
page 25 for
sizes.Fluid Inlet;
146 mm
(5.7 in.)
318 mm
(12.5 in.)
Wall Mount Hole Pattern
For Accessory Wall Mount Kit 245875
100 mm (4 in.)
Two holes to mount the bracket to the pump.
260 mm (10.25 in.)
160 mm
(6.3 in.)
Four 9 mm (0.35 in.)
diameter holes, to
mount the bracket to
the wall
TI1964A
TI1963A
TI2118
Torque Sequence
• Always follow torque sequence when
instructed to torque fasteners.
• Torque bolts twice to 20 N•m (15 ft-lb).
3
8
1
5
67
2
4
27
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.
TO PLACE AN ORDER, contact your Graco distributor, or call this number to identify the distributor closest to you:
1-800-328-0211 Toll Free
612-623-6921
612-378-3505 Fax
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 311689
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
Copyright 2006, Graco Inc. is registered to ISO 9001
www.graco.com
Revised 09/2009
Loading...