Instructions/Parts List
®
TRITON 3D350HP
Diaphragm Pump
311689G
ENG
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
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
TI1962A
II 2 G
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The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama-
tion 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.
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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
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.
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•
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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.
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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.
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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.
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.
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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.
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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.
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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
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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.
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•
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.
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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.
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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:
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Protective eyewear
Clothing and respirator as recommended by the fluid and solvent manufacturer
Gloves
Hearing protection
4
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Installation
Installation
General Information
•
components and accessories. It is not an actual sys-
tem design. Contact your Graco distributor for assis-
tance 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
1. Before each use, check all hoses for wear or dam-
age 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
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Installation
Floor Stand 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.
assemble.
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 diagram. Mount the bracket 1.2-1.5 m (4-5
ft) above the floor.
4. Attach the bracket (B) to the pump (A) with the
screws (C) and washers (D) provided in the kit.
TI20798
FIG. 2: Floor Stand Installation
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
FIG. 1: Wall Mount Kit
6
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Installation
Air Line
Fluid Outlet Line
Mount these accessories on the wall or on a
bracket. Be sure the air line supplying the accesso-
ries is grounded.
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.
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.
3. Install a shutoff valve (H) in the fluid outlet line.
c. The air line filter (D) removes harmful dirt and
moisture from the compressed air supply.
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
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 fit-
ting into the pump air inlet snugly. Do not connect
the coupler to the fitting until you are ready to oper-
ate the pump.
Fluid Suction Line
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fluid inlet size of your pump.
•
For maximum suction lift (wet and dry) information,
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Installation
T
D
A
C
B
J
N
S
Y
L
H
S
P
R
S
E
S
K
G
M
R
F
TI1961B
Key:
A
B
C
D
E
F
Air Supply Line
K
L
Mounting Bracket
Internal Air Relief Valve
Muffler
Air Line Quick Disconnect Coupler
Pump Air Piston
Pump Diaphragms
Pump Ball Checks
Air Shutoff Valve
Pump Ground Wire
Bleed-Type Master Air Valve
Air Regulator
Air Line Filter
Fluid Suction Line
Fluid Supply
M
N
P
R
S
T
G
H
J
Fluid Drain Valve
Fluid Shutoff Valve
Fluid Line
Y
FIG. 3. Typical Installation
8
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Installation
Grounding
X
Before operating the pump, ground the system as
explained below. Read the warnings on page 3.
Ground all of this equipment:
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Loosen the grounding screw (X). Insert one end of a
Y
2
1.5 mm (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.
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Air and fluid hoses: Use only electrically conductive
hoses.
Air compressor: Follow manufacturer’s recommen-
dations.
TI2085A
•
•
Fluid supply drum: Follow your local code.
All solvent pails used when flushing: Follow your
local code. Use only metal pails, which are conduc-
tive, placed on a grounded surface. Do not place the
pail on a nonconductive surface, such as paper or
cardboard, which interrupts the grounding continu-
ity.
FIG. 4. Grounding the Pump
9
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Operation
Operation
7. With the pump air regulator (C) closed, open the
bleed-type master air valve (B).
Pressure Relief Procedure
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.
sure Relief procedure below whenever you:
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are instructed to relieve pressure
stop spraying
check or service any of the equipment
install or clean the fluid nozzle.
If you are flushing, run the pump long enough to thor-
oughly clean the pump and hoses. Close the air regula-
tor. Remove the suction tube (E) from solvent and place
it in the fluid to be pumped.
1. Shut off the air to the pump.
Operating the pump beyond the maximum air
input pressure will decrease diaphragm life.
2. Open the dispensing valve, if used.
3. Open the fluid drain valve to relieve all fluid pres-
sure, having a container ready to catch the drain-
age.
Do not operate the pump dry for long periods of
time to avoid reducing diaphragm life.
Pump Shutdown
Flush the Pump Before First Use
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-
Short Term Shutdown
For a short term shutdown, relieve the pressure (see at
left).
Long Term Shutdown
Starting and Adjusting the Pump
1. Be sure the pump is properly grounded. Refer to
For a long term shutdown, such as several hours or
overnight:
1. Flush the pump thoroughly.
2. Check all fittings to be sure they are tight. Be sure to
use a compatible liquid thread sealant on all male
threads.
2. Leave compatible solvent in the pump.
3. Relieve the pressure (see at left).
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.
an appropriate container.
6. Close the fluid drain valve (G). Open the fluid shutoff
valve (H).
10
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Maintenance
Maintenance
Lubrication
Tighten Threaded Connections
1. Before each use, check all hoses for wear or dam-
age, and replace as necessary.
CAUTION
Lubrication of the pump is not required. Oil is
2. Check to be sure all threaded connections are tight
and leak-free.
exhausted through the muffler, which could contami-
nate the fluid supply or other equipment. Excessive
lubrication can also cause the pump to malfunction.
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).
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-
time.
Preventive Maintenance
Schedule
Establish a preventive maintenance schedule, based on
the service history of the pump. This is especially impor-
tant for prevention of spills or leakage due to diaphragm
failure.
11
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Troubleshooting
Troubleshooting
servicing the equipment.
Check all possible problems and causes before
disassembling the pump.
Problem
Cause
Solution
Pump cycles at stall or fails to hold
pressure at stall.
Worn check valve balls (56), seats
(53), or ball guides (57).
Replace. See page 19.
Pump will not cycle, or cycles once
and stops.
Stuck or dirty air valve.
Disassemble and clean air valve. See
and wedged in seat (53).
(53) due to overpressurization.
exceed the maximum fluid working
pressure, see page 25.
Clogged fluid dispensing valve.
Pinched hose line.
Relieve pressure and clear valve.
Check lines.
Pump operates erratically.
Clogged suction line.
Inspect; clear.
Sticky or leaking check valves.
Clean or replace balls (56) and seats
(53). See page 19.
Ruptured diaphragm (14).
exceed maximum air input pressure.
Restricted exhaust.
Remove restriction.
Tighten.
Air bubbles in fluid.
Loose suction line.
Ruptured diaphragm (14).
Replace. See page 15.
Pump running irregularly. Stroke fre- Worn parts.
Replace worn parts. Check com-
pressed air supply.
quency dropping, coming to stand-
still.
Icing caused by: compressed air too Remove ice by changing operating
moist, stroke frequency too high,
local temperature too low.
conditions.
Air escapes continually from muffler. Damaged air valve cup (47) or seat Replace damaged parts. See page
(33).
Foreign matter inside pump.
Worn check valve seats (53).
Check air filter.
Replace. See page 19.
Pump does not start, or pressure
fluctuates.
Inlet strainer blocked, maximum suc- Clean strainer. Replace defective
tion exceeded, hose or seal defec-
tive.
parts.
Contaminated fluid. Pump installed or Check fluid supply. Follow installa-
operated incorrectly.
tion and operation instructions in this
manual.
12
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Troubleshooting
Fluid Outlet
Outlet Manifold Tube
Outlet Ball Check
Diaphragm
Optional Fluid Outlet
Outlet Ball Check
Diaphragm
Inlet Ball Check
Fluid Inlet
Air Piston
Carriage
Diaphragm Shaft
Inlet Manifold Tube
Inlet Ball Check
Driver Carriage
Carriage
Air Valve
Air Valve Gasket
Air Valve Cup
Air Inlet
Diaphragm Shaft
FIG. 5. Cutaway Views of Pump and Air Valve
13
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Repair
Repair
Tools Required
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•
•
•
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•
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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)
Prepare the Pump for Repair
3. Disconnect the air and fluid hoses.
4. Remove the pump from its mounting and take it to
the work bench.
General Repair Notes
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A qualified technician should make all repairs.
Inspect and clean all parts thoroughly before
reassembly.
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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.
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•
•
•
Do not use silicone or silicone-based grease.
Fault Indications
During operation, check for indications of worn or dam-
aged 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
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Repair
2. Depress the first diaphragm (14*) using the dia-
Replace the Diaphragms
phragm repair tool and install the opposite dia-
phragm (14*) by hand.
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*).
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 hous-
ings (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).
Diaphragm Repair Tool 261695 is available to
assist with diaphragm installation.
Operating the pump beyond the maximum air
input pressure will decrease diaphragm life.
5. Lubricate the o-rings (13*) and ends of the fluid
tubes (12) and push the tubes into the tube hous-
ings (4) so they are securely seated.
Do not operate the pump dry for long periods of
time to avoid reducing diaphragm life.
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).
Disassembly
2. Remove the screws (31) from one fluid cover (1).
Pull the cover assembly off, separating it from the
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 dia-
phragm. The part number on the tool should face
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
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
15
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Repair
Reassembly
Repair the Air Valve
Lubricate all o-rings when reassembling the
pump.
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.
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).
Disassembly
2. Remove the screws (31) from one fluid cover (1).
Pull the cover assembly off, separating it from the
fluid tubes (12). See FIG. 7.
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.
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).
4. Install the o-rings (52†) on the air valve plugs (51).
Install the plugs and secure with clips (50).
5. Remove the screws (68) and the top (67) and bot-
tom (66) covers.
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. Remove the four screws (38) and washers (37), air
valve cover (36), and gasket (35).
7. Check that the o-ring (23), packing (26), and quad
ring (32) are in place on the piston (16).
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.
8. Insert the air valve tube (24) through the cylinder
inner cover (6). Install the cover on the center hous-
ing (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).
9. Remove the cup (47) from the center housing.
10. Remove the two clips (46) from the shaft (17).
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.
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).
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).
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).
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).
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).
17
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Repair
12. Install the cup (47†) in the center housing.
16. Install the fluid covers (1). The arrows must point up.
Torque the screws (31) to 20 N•m (15 ft-lb).
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).
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).
14. Install the gasket (35†), cover (36), and screws and
washers (38, 37). Torque to 6 N•m (4.4 ft-lb).
18. Install the air inlet fitting (40).
15. Reinstall the diaphragms (14), page 15.
67
4
1
71
Lubricate.
38
36
37
35†
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
50
51
†52
31
5
48†
21
1
1
†33
19†
†49
18
20†
12
†80
1
14
5
34
†43
1
†44
1
†47
45
24
42
28
12
6
40
25
22
1
32
27
†52
51
50
16
26
1
17
1
29 2
46
15 68
20†
21
23
1
18
19†
30
3
1
7
20†
18
1
68
22
1
19†
11
71
21
66
31
5
14
TI1958B
FIG. 7. Repair the Air Valve
18
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Repair
2. Install the outlet tube assembly. Torque the screws
(38) to 10 N•m (7.4 ft-lb).
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.
CAUTION
The inlet ball check valves must be installed exactly
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.
•
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)
•
•
•
Disassembly
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).
2. Remove the screws (38) and take the tube assem-
3. Remove the springs (65), ball guides (57), and balls
(56) from the outlet (top) check valves.
4. Install the inlet tube assembly. Torque the screws
(38) to 10 N•m (7.4 ft-lb).
If the ball is stuck in the seat, pry it loose with a
screwdriver.
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
•
•
•
•
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
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Repair
15. Remove the screws (29) and cylinder inner cover
Replace the Cylinder and Piston
Seals
(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 hous-
ing (5). Do not lose the o-ring (28).
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.
Reassembly
Disassembly
Lubricate all o-rings during reassembly.
2. Remove the screws (38) and tube assemblies. See
1. Install the o-rings (42◆, 28) in the housing (5).
2. Install the o-rings (22◆, 25) on the inner cover (6).
seals (55, 59) are included with this repair kit.
3. Install the o-ring (23◆), packing (26◆), and quad
ring (32◆) on the piston (16).
4. Remove the air inlet fitting (40).
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. Remove the screws (68) and the top (67) and bot-
tom (66) covers.
6. Remove the screws (31) and fluid covers (1).
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.
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.
6. Lubricate the shaft (17) and slide it into the housing
(5), guiding the tube (24) through the hole in the pis-
ton. Install the two clips (46) on the shaft.
10. Remove the o-rings (80) from the housing.
11. Remove the cup (47) from the housing.
7. Liberally grease the inside of the cylinder (7) and
the piston o-ring (23◆). Seat the cylinder securely
on the inner cover (6).
To further disassemble and repair the air valve,
see page 17.
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).
12. Remove the two clips (46) from the shaft (17).
9. Install the cup (47) in the center housing (5).
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.
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).
14. Pull the piston (16) and shaft out of the center hous-
ing (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).
11. Install the gasket (35), cover (36), and screws and
washers (38, 37). Torque to 6 N•m (4.4 ft-lb).
21
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Repair
12. Install the diaphragms (14), page 15.
15. Install the air inlet fitting (40).
13. Install the fluid covers (1). The arrows must point up.
Torque the screws (31) to 20 N•m (15 ft-lb).
16. Install the flat seals (55◆, 59◆) and the other ball
check parts, see page 19.
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).
17. Install the tube assemblies. Torque the screws (38)
to 10 N•m (7.4 ft-lb).
67
1
Lubricate.
12
6
38
2
3
4
5
6
71
Torque to 8 N•m (5.9 ft-lb)
Torque to 15 N•m (11 ft-lb)
Torque to 6 N•m (4.4 ft-lb)
Torque to 20 N•m (15 ft-lb)
Torque to 10 N•m (7.4 ft-lb)
65
57
56
55◆★
43
50
51
44
54
38
37
4
53
47
48
59◆★
1
36
5
35
14
33
31 5
80
34
42◆
6
40
24
32◆1
25
22◆
1
65
65
57
56
171
57
56
★◆55
61
27
61
53
1
◆26
54
51
50
53
28
1
59◆★
★◆59
58
46
2 29
15
23◆
1
16
1
68
12
38
30
3
7
1
22◆
1
31
5
6
11
65
57
56
53
68
14
59◆★
58
71
66
TI2074B
FIG. 9. Replace the Cylinder and Piston Seals
22
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Parts
Parts
Part No. 253707 includes items 1-81
Part No. 253708 includes items 1-8,10-59, 61-81
60
13*
38
12
67
2
65‡
37
38
36
35†
13*
71
57‡
56‡
55◆★
50
51
48†
18
‡53
54
59◆★
21
†52
19†
†33
14*
80
†49
5
1
38
20†
31
34
†43
4
8
81
†44
6
62
63
64
†47
25
45
24
9
42◆
65‡
57‡
56‡
10
32◆
22◆
40
‡65
27
28
39
◆26
53‡
‡57
‡56
★◆55
54
†52
59◆★
58
53‡
51
61
23◆
46
50
3
17
★◆59
29
60
38
21
20†
61
68
18
19†
16
13*
15
12
13*
30
1
7
22◆
31
20†
11
‡65
18
19†
68
66
‡57
‡56
‡53
21
71
59◆★
58
4
14*
9
10
38
TI1957B
23
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Parts
Part No. 253707 includes items 1-81
Part No. 253708 includes items 1-8,10-59, 61-81
Ref.
No.
Part No. Description
Qty
Ref.
No.
Part No. Description
Qty
38
39
40
117029 SCREW, cap, socket-hd; M6 x 25
117019 VALVE, safety, relief
15A790 FITTING, inlet, air; for 253707
15A044 FITTING, inlet, air; for 253708
O-RING; nitrile
12
1
1
1
1
1
2
1
2
1
1
2
2
2
2
4
2
2
4
4
2
6
2
2
2
2
4
4
1
1
8
1
2
2
1
1
2
15A010 COVER, fluid
2
1
1
1
1
2
2
1
1
1
1
2
2
2
1
2
4
15A000 HOUSING, outlet, fluid; for 253707
15A003 HOUSING, outlet, fluid; for 253708
15A002 HOUSING, inlet, fluid; for 253707
15A003 HOUSING, inlet, fluid; for 253708
15A001 HOUSING, tube, fluid; for 253707
15A004 HOUSING, tube, fluid; for 253708
15A032 HOUSING, center
15A051 COVER, inner, cylinder
15A050 CYLINDER
116343 CLAMP, grounding
116898 WASHER; for 253707 only
116902 PLUG, socket-hd; for 253707
112306 PLUG, pipe; for 253708
15A052 COVER, outer, cylinder
15A037 TUBE, fluid
O-RING; chemically resistant
fluoroelastomer
DIAPHRAGM; PTFE
15A042 SHAFT, piston
15A038 PISTON
3
4
42◆
43†
44†
45
O-RING; nitrile
O-RING; nitrile
15A033 CARRIAGE
117022 CLIP, c-spring
CUP, air valve
5
6
7
8
9
10
46
47†
48†
49†
50
CARRIAGE, driver
O-RING; nitrile
117020 CLIP, c-spring
15A009 PLUG, air valve
O-RING; nitrile
51
52†
53‡
54
55◆★
56‡
57‡
58
11
12
13*
SEAT, valve
15A026 SLEEVE, ball guide
SEAL, flat; UHMWPE
BALL, 30 mm; acetal
GUIDE, ball
14*
15
2
1
1
1
3
3
3
3
2
1
1
1
1
1
2
4
4
15A036 SEAL; acetal homopolymer
SEAL, flat; UHMWPE
16
17
18
59◆★
60
61
15A043 SHAFT, diaphragm
15A006 BEARING
15A005 BUSHING; for 253707 only
15A482 WASHER
19†
20†
21
22◆
23◆
24
25
26◆
27
O-RING; fluoroelastomer
O-RING; nitrile
117021 CLIP, c-spring
O-RING; nitrile
62
63
64
65‡
66
15A016 DAMPENER, noise
15A028 PLATE
117026 SCREW, cap, socket-hd; M5 x 12
SPRING, compression
15J373 COVER, bottom
15J375 COVER, top
116595 SCREW; M4 x 0.7
O-RING; nitrile
15A031 TUBE, air valve
117006 O-RING; nitrile
PACKING, PTFE
67
68
70▲ 188621 LABEL, warning (not shown)
71 15A008 DAMPENER, felt
80† 158486 O-ring, nitrile
81 111307 WASHER
117023 PIN, spring
28
29
30
117012 O-RING; fluoroelastomer
117028 SCREW, socket-hd; M6 x 16
117034 SCREW, socket-hd; M8 x 100
* 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.
31
116900 SCREW, cap, socket-hd; M10 x 25 16
32◆
33†
34
35†
36
RING, quad; nitrile
SEAT, air valve
1
1
1
1
1
4
117024 PIN, spring
GASKET
15A035 COVER, air valve
117018 WASHER
NOTE: ▲ Replacement Warning labels, signs, tags,
and cards are available at no cost.
37
24
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Technical Data
Technical Data
Category
Data
Maximum fluid working pressure
Maximum air input pressure
Ratio
1.8 MPa, 18 bar (260 psi)
0.6 MPa, 6 bar (88 psi)
3:1
Maximum recommended flow rate (continuous duty)
Maximum recommended cycle rate
Maximum flow rate
7.6 liters/min (2.0 gpm)
20 cycles/minute
114 liters/min (30 gpm)
350 cc/cycle (11 oz/cycle)
10-80°C (50-176°F)
2.5 m (8.2 ft)
Volume per cycle (double stroke)
Operating temperature range
Dry suction lift
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
Fluid outlet size
Model 253707: 1 in. BSPP(f)
Model 253708: 1 in. npt(f)
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 66 dB(A)
psi) air inlet pressure. Tested per ISO 9614-2.
Weight (approximate)
Wetted parts
29 kg (64 lb)
303 and 316 stainless steel, acetal, fluorocarbon,
ultra-high molecular weight polyethylene, PTFE
25
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Performance Charts
Performance Charts
CYCLES PER MINUTE
Key
A = 0.6 MPa, 6 bar (88 psi)
0
22
43
65
87
109
130 152 174 196 217 239
1.9, 19
(280)
1.7, 17
(240)
1.2
(42)
B = 0.4 MPa, 4 bar (60 psi)
C = 0.2 MPa, 2 bar (30 psi)
= Fluid Flow
A
1.4, 14
(200)
1.0
(35)
A
B
1.0, 11
(160)
0.8
(28)
= Air Consumption
B
C
0.8, 8
(120)
0.6
(21)
0.4
(14)
0.6, 5.5
(80)
C
0.3, 2.8
(40)
0.2
(7)
0
0
7.6
(2)
15.1 22.7 30.2 37.8 45.4 52.9 60.5 68.0 75.6 83.2
(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
0
5
11
16
22
27
33
38
43
1.9, 19
(280)
A
1.7, 17
(240)
1.4, 14
(200)
1.0, 11
(160)
B
C
0.8, 8
(120)
0.6, 5.5
(80)
0.3, 2.8
(40)
1.9
(0.5)
3.8
(1.0)
5.7
(1.5)
7.6
(2.0)
9.5
(2.5)
11.4
(3.0)
13.3
(3.5)
15.1
(4.0)
FLUID FLOW lpm (gpm); tested in No. 10 weight oil
26
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Dimensions
Dimensions
213 mm (8.4 in.)
M8 Mounting
Holes
Fluid Outlet;
see page 25
for sizes.
360 mm (14.2 in.)
Air Inlet; see
sizes.
Fluid Inlet;
see page 25
for sizes.
146 mm
(5.7 in.)
160 mm
(6.3 in.)
TI1964A
TI1963A
318 mm
(12.5 in.)
Wall Mount Hole Pattern
For Accessory Wall Mount Kit 245875
260 mm (10.25 in.)
100 mm (4 in.)
Four 9 mm (0.35 in.)
diameter holes, to
mount the bracket to
the wall
Two holes to mount the bracket to the pump.
TI2118
Torque Sequence
3
2
1
4
•
Always follow torque sequence when
instructed to torque fasteners.
Torque bolts twice to 20 N•m (15 ft-lb).
8
6
5
7
•
27
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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 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
Revised 09/2009
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