Instructions - Parts
™
313872N
EN
EP Gun
Plural Component, Impingement Mix, Mechanical Purge Pour Gun
For use with non-flammable foam in open pour applications. Not approved for use in
European explosive atmosphere locations.
Model 257999, 24C932
3000 psi (20.7 MPa, 207 bar) Maximum Fluid Working Pressure
80-100 psi (0.55-0.69 MPa, 5.5-6.9 bar) Air Inlet Pressure Range
180°F (82°C) Maximum Fluid Temperature
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
ti19547a
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313872N
3
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Models
Models
Purge Rod
Diameter
in. (mm)
Orifice Size
in. (mm)
Part
Handle Type
257999
24C932
0.250 (6.35)
0.250 (6.35)
0.031 (0.79)
0.031 (0.79)
Handheld
Auto
Orifice Flow Area Ratio Chart
In general, flow area ratio should be equal to material ratio but will be influenced by material viscosity. The ideal flow
area ratio is dependent on flow rates, material viscosity, and material ratio. Choose the correct size orifices to equal-
ize fluid pressures at the proportioner.
Available Orifice Flow Area Ratios
Dia-
meter 0.016 0.020 0.024 0.028 0.031 0.035 0.039 0.042 0.047 0.052 0.055 0.060 0.063 0.067 0.073 0.086
0.016 1.0
0.020 1.6
0.024 2.3
0.028 3.1
0.031 3.8
0.035 4.8
0.039 5.9
0.042 6.9
0.047 8.6
0.052 10.6 6.8
0.055 11.8 7.6
0.060 14.1 9.0
0.063 15.5 9.9
1.6
1.0
1.4
2.0
2.4
3.1
3.8
4.4
5.5
2.3
1.4
1.0
1.4
1.7
2.1
2.6
3.1
3.8
4.7
5.3
6.3
6.9
3.1
2.0
1.4
1.0
1.2
1.6
1.9
2.3
2.8
3.4
3.9
4.6
5.1
5.7
6.8
3.8
2.4
1.7
1.2
1.0
1.3
1.6
1.8
2.3
2.8
3.1
3.7
4.1
4.7
5.5
7.7
4.8
3.1
2.1
1.6
1.3
1.0
1.2
1.4
1.8
2.2
2.5
2.9
3.2
3.7
4.4
6.0
5.9
3.8
2.6
1.9
1.6
1.2
1.0
1.2
1.5
1.8
2.0
2.4
2.6
3.0
3.5
4.9
6.9
4.4
3.1
2.3
1.8
1.4
1.2
1.0
1.3
1.5
1.7
2.0
2.3
2.5
3.0
4.2
8.6 10.6 11.8 14.1 15.5 17.5 20.8 28.9
5.5
3.8
2.8
2.3
1.8
1.5
1.3
1.0
1.2
1.4
1.6
1.8
2.0
2.4
3.3
6.8
4.7
3.4
2.8
2.2
1.8
1.5
1.2
1.0
1.1
1.3
1.5
1.7
2.0
2.7
7.6
5.3
3.9
3.1
2.5
2.0
1.7
1.4
1.1
1.0
1.2
1.3
1.5
1.8
2.4
9.0
6.3
4.6
3.7
2.9
2.4
2.0
1.6
1.3
1.2
1.0
1.1
1.2
1.5
2.1
9.9 11.2 13.3 18.5
6.9
5.1
4.1
3.2
2.6
2.3
1.8
1.5
1.3
1.1
1.0
1.1
1.3
1.9
7.8
5.7
4.7
3.7
3.0
2.5
2.0
1.7
1.5
1.2
1.1
1.0
1.2
1.6
9.3 12.8
6.8
5.5
4.4
3.5
3.0
2.4
2.0
1.8
1.5
1.3
1.2
1.0
1.4
9.4
7.7
6.0
4.9
4.2
3.3
2.7
2.4
2.1
1.9
1.6
1.4
1.0
0.067 17.5 11.2 7.8
0.073 20.8 13.3 9.3
0.086 28.9 18.5 12.8 9.4
Flowrate Increases as Diameter Increases =>
4
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Models
Fixed Orifice Flowrate Data
EP Fixed Orifice Flow Data
5.00
4.75
4.50
4.25
4.00
3.75
3.50
3.25
3.00
2.75
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0.00
0.086 in. Diameter Orifice
0.067 in. Diameter Orifice
0.060 in. Diameter Orifice
0.047 in. Diameter Orifice
0.031 in. Diameter Orifice
0.020 in. Diameter Orifice
500
750
1000
1250
1500
1750
2000
Pressure (psi)
EP Gun Flowrate Data, Tested with 2 lb Foam
HFR with 160/160 and EP250
350 (5.53)
300 (4.74)
250 (3.95)
Orifice
0.086 in. diameter
200 (3.16)
0.067 in. diameter
0.060 in. diameter
150 (2.37)
0.047 in. diameter
100 (1.58)
0.031 in. diameter
50 (0.79)
0
0
500
1500
1000
2000
2500
3000
Pressure (psig)
313872N
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Models
Variable Orifice Flowrate Data
VARIABLE ORIFICE FLOWRATE DATA (1000 PSI)
0.086
0.073
0.067
0.063
0.060
0.055
0.052
0.047
0.041
0.039
0.033
0.031
0.028
0.024
0.020
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75
3.00
3.25
3.50
3.75
4.00
4.25
4.50
4.75
FLOWRATE (gpm)
* To calculate flow in lb/min, multiply gpm rate by 10.
Example: 2 gpm x 10 = 20 lb/min.
6
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Models
VARIABLE ORIFICE FLOWRATE DATA (1500 PSI)
0.086
0.073
0.067
0.063
0.060
0.055
0.052
0.047
0.041
0.039
0.033
0.031
0.028
0.024
0.020
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75
3.00
3.25
3.50
3.75
4.00
4.25
4.50
4.75
FLOWRATE (gpm)
* To calculate flow in lb/min, multiply gpm rate by 10.
Example: 2 gpm x 10 = 20 lb/min.
313872N
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Models
VARIABLE ORIFICE FLOWRATE DATA (2000 PSI)
0.086
0.073
0.067
0.063
0.060
0.055
0.052
0.047
0.041
0.039
0.033
0.031
0.028
0.024
0.020
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75
3.00
3.25
3.50
3.75
4.00
4.25
4.50
4.75
FLOWRATE (gpm)
* To calculate flow in lb/min, multiply gpm rate by 10.
Example: 2 gpm x 10 = 20 lb/min.
8
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Warnings
Warnings
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
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 MSDSs 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 chemically impermeable gloves when spraying, dispensing, 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, including eye injury, hearing loss, inhala-
tion of toxic fumes, and burns. This equipment includes but is not limited to:
•
•
Protective eyewear, and hearing protection.
Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufac-
turer.
SKIN INJECTION HAZARD
High-pressure fluid from dispensing device, hose leaks, or ruptured components will pierce skin. This
may look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical
treatment.
•
•
•
•
•
Engage trigger lock when not dispensing.
Do not point dispensing device at anyone or at any part of the body.
Do not put your hand over the fluid outlet.
Do not stop or deflect leaks with your hand, body, glove, or rag.
Follow the Pressure Relief Procedure when you stop dispensing and before cleaning, checking,
or servicing equipment.
•
•
Tighten all fluid connections before operating the equipment.
Check hoses and couplings daily. Replace worn or damaged parts immediately
BURN HAZARD
Equipment surfaces and fluid that’s heated can become very hot during operation. To avoid severe
burns:
•
Do not touch hot fluid or equipment.
313872N
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Warnings
WARNING
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help pre-
vent 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.
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
•
•
Do not operate the unit when fatigued or under the influence of drugs or alcohol.
Do not exceed the maximum working pressure or temperature rating of the lowest rated system
component. See Technical 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 from distributor or retailer.
•
•
Do not leave the work area while equipment is energized or under pressure. Turn off all equipment
and follow the Pressure Relief Procedure when equipment is not in use.
Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manu-
facturer’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 ALUMINUM PARTS HAZARD
Use of fluids that are incompatible with aluminum in pressurized equipment can cause serious chemi-
cal reaction and equipment rupture. Failure to follow this warning can result in death, serious injury, or
property damage.
•
Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or
fluids containing such solvents.
•
Many other fluids may contain chemicals that can react with aluminum. Contact your material sup-
plier for compatibility.
10
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Important Two-Component Material Information
Important Two-Component Material Information
Isocyanate Conditions
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.
Spraying or dispensing materials containing isocya-
nates creates potentially harmful mists, vapors, and
atomized particulates.
Read material manufacturer’s warnings and material
MSDS to know specific hazards and precautions
related to isocyanates.
NOTE: The amount of film formation and rate of crystal-
lization varies depending on the blend of ISO, the
humidity, and the temperature.
Prevent inhalation of isocyanate mists, vapors, and
atomized particulates by providing sufficient ventila-
tion in the work area. If sufficient ventilation is not
available, a supplied-air respirator is required for
everyone in the work area.
To prevent exposing ISO to moisture:
•
Always use a sealed container with a desiccant
dryer in the vent, or a nitrogen atmosphere. Never
store ISO in an open container.
To prevent contact with isocyanates, appropriate per-
sonal protective equipment, including chemically
impermeable gloves, boots, aprons, and goggles, is
also required for everyone in the work area.
•
Keep the ISO lube pump reservoir (if installed) filled
™
™
with Graco Throat Seal Liquid (TSL ), Part
206995. The lubricant creates a barrier between the
ISO and the atmosphere.
Material Self-ignition
•
•
Use moisture-proof hoses specifically designed for
ISO, such as those supplied with your system.
Never use reclaimed solvents, which may contain
moisture. Always keep solvent containers closed
when not in use.
Some materials may become self-igniting if applied
too thickly. Read material manufacturer’s warnings
and material MSDS.
•
•
Never use solvent on one side if it has been contam-
inated from the other side.
Always lubricate threaded parts with ISO pump oil
or grease when reassembling.
Keep Components A and B
Separate
Foam Resins with 245 fa
Blowing Agents
Some foam blowing agents will froth at temperatures
above 90°F (33°C) when not under pressure, especially
if agitated. To reduce frothing, minimize preheating in a
circulation system.
Cross-contamination can result in cured material in
fluid lines which could cause serious injury or dam-
age equipment. To prevent cross-contamination of
the equipment’s wetted parts, never interchange
component A (isocyanate) and component B (resin)
parts.
313872N
11
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Important Two-Component Material Information
Changing Materials
•
When changing materials, flush the equipment mul-
tiple times to ensure it is thoroughly clean.
•
•
Always clean the fluid inlet strainers after flushing.
Check with your material manufacturer for chemical
compatibility.
•
•
Most materials use ISO on the A side, but some use
ISO on the B side.
Epoxies often have amines on the B (hardener)
side. Polyureas often have amines on the B (resin)
side.
A (Red) and B (Blue)
Components
IMPORTANT!
Material suppliers can vary in how they refer to plural
component materials.
Be aware that when standing in front of the manifold on
proportioner:
•
•
Component A (Red) is on the left side. The A (Red)
side is intended for ISO, hardeners, and catalysts.
Component B (Blue) is on the right side.The B
(Blue) side is intended for polyols, resins, and
bases.
For ratios higher than 1:1, the higher volume is typically
the B (Blue) side.
•
Most polyurethanes use ISO on the A (Red) side
and polyol on the B (blue side, but some use ISO on
the B (Blue) side.
•
•
•
Epoxies often have amines on the B (hardener) side
Polyureas often have amines on the B (resin) side.
Silicones often have the catalyst on the B side.
12
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Throat Seal Liquid
Disengage
Throat Seal Liquid
To disengage piston safety lock, push knob in and turn
counterclockwise until it pops out. There will be a gap
between knob and gun body.
Read material MSDS to know specific hazards and
precautions related to Throat Seal Liquid.
Grounding
TI14473b
TI14474a
FIG. 2: Piston Safety Lock Disengaged
Check your local electrical code and proportioner man-
ual for detailed grounding instructions.
Trigger Lock
Engage trigger lock whenever you stop pouring to avoid
accidental triggering. Must be used with piston safety
lock.
Ground the pour gun through connection to a
Graco-approved grounded fluid supply hose. Always
ground the gun when flushing.
Disengage
Engage
Piston Safety Lock
Engage piston safety lock whenever you stop pouring to
avoid accidental triggering and serious injury.
Engage
TI10441a
TI10442a
To engage piston safety lock, push knob in and turn
clockwise. If engaged, gun will not dispense.
TI14454b
TI14475a
FIG. 1: Piston Safety Lock Engaged
313872N
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Loss of Air Pressure
Loss of Air Pressure
Hook Support
If necessary, use the hook support located on the top of
the gun to support the weight of the gun. Connect a
strong rope or chain able to support the weight of the
gun to the hook, then connect the other end to a sup-
port. This will enable the user to use the gun without
having to support the weight of the gun.
Purge rod actuation is controlled by air pressure. In
event of loss of air pressure, the purge rod will remain
retracted, the impingement ports will remain open, and
the gun will continue to pour. To stop pouring, do one of
the following:
•
•
Engage piston safety lock, see Piston Safety Lock
section
TI14450a1
ti19549a
FIG. 3
14
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Hook Support
313872N
15
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Component Identification
Component Identification
component identification.
B
E
A
M
H
C
J
H
K
N
D
P
R
L
F
G
ti19550a
FIG. 4
Key:
A
B
C
D
E
F
Hook Support
H
J
K
L
M
N
P
R
Dual Pistons
Bulkhead
Piston Safety Lock
Cartridge
Airline Fitting
Solenoid Valve Gasket
Fluid Housing
Orifice
Fluid Manifold
Air Cylinder, Gun Body
Mounting Plate
G
Electric Trigger Handle (optional)
Solenoid Valve Mounting Plate
Solenoid Valve
16
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Theory of Operation
Theory of Operation
Gun Triggered (Fluid Pouring)
Gun Detriggered
Purge rod retracts, opening the impingement ports and
allowing fluid to mix and flow through the nozzle.
Purge rod extends, closing the impingement ports and
stopping fluid flow.
Purge Rod
Grease
Grease
Purge Rod
Side View
Side View
ti19553a
ti19552a
ti19555a
Top View
ti19554a
Top View
18
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Setup
Setup
Perform this setup procedure to get the pour gun ready
for operation.
6. Connect gun air whip hose (AA) to air quick
coupler (AC). Turn on air. Open air valve (AB).
1. Close fluid valves A and B.
AA
AB
B
A
AC
AD
ti19556a
FIG. 6
TI2411a
7. Connect signal cable to solenoid valve.
FIG. 5
8. Models with a handle, connect signal cable to han-
dle.
2. Connect A and B fluid hoses to fluid manifold.
In the following step, do not point gun at yourself. If
necessary, use a mirror to verify purge rod travel.
Pointing gun at yourself or someone else can lead to
accidentally spraying yourself or someone else with
fluid. If the purge rod was not correctly installed,
purge rod can shoot out of the barrel when gun is
actuated and can cause severe injury.
TI2417a
4. Connect gun air whip hose (AA) and air valve (AB)
closed.
gun to check for full purge rod travel.
5. Assemble fluid manifold (AD) to gun by hand then
use 5/16 in. nut driver to torque bolt to 20-30 in-lb
Purge Rod
ti19557a
FIG. 7
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Setup
12. Turn on proportioner. See proportioner manual.
13. Open fluid valves A and B.
Adjust Orifices
In order to balance pressures between the A component
and B component the needle in each orifice may need to
be adjusted. Be sure that all necessary adjustments to
the proportioner are made prior to adjusting the orifices,
see proportioner manual.
If after adjusting pressures neither orifice can achieve
the desired pressure both orifices should be replaced
with a larger or smaller size. Note that a smaller orifice
will provide higher pressure and a larger orifice will pro-
vide lower pressure.
If after attempting to balance pressures the pressure dif-
ference is over 500 psi one orifice should be replaced
with a different size. If that is the case, adjust the needle
in each orifice all the way open (counter-clockwise) and
observe the pressures. The orifice whose pressure is
farthest from the desired pressure should be replaced.
Note that a smaller orifice will provide higher pressure
and a larger orifice will provide lower pressure.
ti19558a
FIG. 8
1. Insert a 5/64 in. hex key (supplied) into the opening
in the hex on the orifice.
2. In order to increase the pressure, turn the needle
15. Perform a test pour into a waste container. Adjust
pressure and temperature to get desired results,
see proportioner manual. Also, see Adjust Ori-
clockwise.
ti19561a
In order to decrease the pressure, turn the needle
counter-clockwise.
ti19559a
FIG. 9
ti19560a
20
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Setup
5. Apply thread sealant to plugs (AH), elbows (AJ),
Optional Hose Position
and male threads of swivels (AE). Install
11. Install swivels in elbows. Be sure to install the A
swivel in the A side. Install plugs (AH) where swivels
had been. Torque all parts to 235-245 in-lb
(26.6-27.7 N•m).
As shipped, fluid inlet swivel fittings point to rear of the
gun. If desired, use the following procedure to make the
fluid inlet swivel fittings point downward.
NOTICE
AH
AJ
To prevent cross-contamination of gun’s wetted parts,
do not interchange A component (isocyanate) and B
component (resin) parts.
AE
TI2646
2. Disconnect air quick coupler. Use hex nut driver to
remove fluid manifold (AD).
FIG. 11
6. Connect the A hose to the A swivel and the B hose
to the B swivel.
7. Attach fluid manifold (AD) to gun. Torque fluid mani-
fold bolt to 20-30 in-lb (2.26-3.39 N•m).
8. Connect air quick coupler (AC).
AD
ti19562a
3. Disconnect signal cable.
4. Place a cap over the end of each hose. Disconnect
fluid hoses from inlet swivels (AE). Remove plugs
from optional inlets (AG).
AE
TI2417a
AE
AG
FIG. 10
313872N
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Pressure Relief Procedure
Pressure Relief Procedure
7. Relieve system pressure. See Pressure Relief Pro-
cedure in proportioner manual.
8. Ensure fluid valves are closed then remove fluid
manifold.
9. Place the fluid manifold over waste containers, fac-
ing away from you.
NOTE: Air supply is required for purge rod actuation. Do
not disconnect gun air supply until fluid pressure is
relieved.
2. Close fluid valves A and B. Leave air valve (AB)
open.
10. Very slowly open the fluid valves. Under high pres-
sure, fluid will spray sideways from the fluid ports.
AB
AC
TI2484a
ti19549a
FIG. 12
4. Trigger gun onto cardboard or into waste container
to relieve pressure.
ti19563a
FIG. 13
22
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Shutdown
Shutdown
Short Term Shutdown
Long Term Shutdown
Perform Short Term Shutdown procedure if gun will not
be used for more than one hour.
Perform Long Term Shutdown procedure if gun will not
be used for more than 48 hours.
2. Engage piston safety lock.
3. Trigger gun to retract purge rod.
4. While purge rod is retracted, remove any material
build-up on front poor tip and front packing.
ti19564a
5. While purge rod is retracted, spray Throat Seal
Lubricant (TSL) into the front nose.
6. Trigger gun five times in order to ensure material
does not build up on purge rod.
7. Detrigger gun and leave the air on.
313872N
23
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Maintenance
Maintenance
Procedure
Schedule
Lubrication
Daily
Every 2-4
Weeks
ally lubricate all o-rings, seals, and threads.
Monthly
NOTICE
As Needed
As Needed
As Needed
As Needed
Use only Throat Seal Liquid on the o-rings, seals,
and threads of the cartridge. Fusion grease or
other petroleum-based or vegetable-based lubri-
cants will cause cartridge o-rings and seals to swell
and stick.
As Needed
Grease the Gun
Supplied Tool Kit
•
•
•
Hex Nut Driver; 5/16
Screwdriver; 1/8 blade
Impingement Port Drill Bit; various sizes depending
on port size
3. Use a 5/32 in. allen key to remove the weep plug.
•
117661 Pin Vise; dual reversible chucks,
see FIG. 14
®
•
•
•
117773 Fusion grease
117792 Grease Gun
100633 Allen Wrench; 5/32
ti19565a
Reversible
Reversible
TI3684a
FIG. 14: Pin Vise
24
313872N
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Maintenance
4. Use a grease gun with the required synthetic
grease, part 117773, to purge the gun body until
grease exits the weep hole without evidence of for-
eign material.
4. Install flush hoses to flush manifold 15B817. See
manifold bolt to 20-30 in-lb (2.26-3.39 N•m).
TI2647a
FIG. 16: Flush Manifold
5. Holding a metal part of flush manifold firmly to side
of grounded pail and flush with compatible solvent
into a grounded metal pail. See wetted parts info in
pressure when flushing.
ti19566a
5. Use a 5/32 in. allen key to install the weep plug.
Flush Gun
NOTE: For a more thorough flush, solvent flush kits are
2. Remove fluid manifold (AD).
ti19567a
FIG. 17: 248139, 1 qt (0.95 liter) Solvent Cup
AD
7. Remove flush hoses from flush manifold. Remove
flush manifold from gun.
8. Remove Recirculation Block 15C850 from fluid
manifold.
ti19549a
9. Connect fluid manifold to gun. Torque fluid manifold
bolt to 20-30 in-lb (2.26-3.39 N•m).
FIG. 15
10. Connect signal cable.
3. Disconnect signal cable.
313872N
25
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Maintenance
Clean Outside of Gun
Clean Fluid Manifold
The solvents listed in this section may ignite if used in
flushing. Use them only for external cleaning.
Fluid Manifold Fluid Ports
Wipe the outside of the gun with a compatible solvent.
CU-6, Dzolv, or an equivalent solvent to soften cured
material. Applying a light coat of lubricant will make
future cleaning easier.
TI2411a
FIG. 19
Clean Breather Plug
2. Use 5/16 in. hex nut driver to remove fluid
manifold (AD).
The solvents listed in this section may ignite if used in
flushing. Use them only for external cleaning.
Remove and clean breather plug with compatible sol-
vent. See materials of construction info in Technical
rolidone (NMP), Dynasolve CU-6, Dzolv, or an equiva-
lent to soften cured material. Applying a light coat of
lubricant will make future cleaning easier. Torque
breather plug to 30-40 in-lb (3.89-4.82 N•m).
AD
ti19562a
3. Disconnect signal cable.
4. Clean fluid manifold fluid ports with compatible sol-
vent and brush whenever removed from gun. See
surfaces, do not use brush to clean inside diameter
of fluid ports. Fill fluid ports with grease if left
Breather
30
Plug
ti14469a1
FIG. 18: Breather Plug
5. Install fluid manifold. Torque fluid manifold bolt to
20-30 in-lb (2.26-3.39 N•m).
6. Connect signal cable.
26
313872N
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Maintenance
6. Use flat tip screwdriver to pry out check valves at
notch.
Clean Check Valves
3. Disconnect air quick coupler (AC). Use hex nut
driver to remove fluid manifold (AD).
ti19569a
Damaged check valve o-rings may result in external
leakage. Replace o-rings if worn or damaged.
AD
AC
7. Press on ball (BC) to test check valve for proper
movement and spring action. Replace check valve
assembly if necessary.
ti19568a
8. Slide filter (BD) off. Clean and inspect parts. Thor-
oughly inspect o-rings (BE, BG). If necessary,
remove screw (BA) and disassemble check valve.
4. Disconnect signal cable.
5. Clean and inspect check valve mating surfaces and
B
A
NOTICE
BA
To prevent cross-contamination of the check valves,
do not interchange A component and B component
parts. The A component check valve is marked with
an A.
BB
BC
AK
BD
BE
BF
BG
ti19570a
FIG. 20
9. Liberally lubricate o-rings (BE, BG). Reassemble
check valves. Screw (BA) should be flush with
check valve housing surface (within 1/16 in. or
1.5 mm).
10. Install check valves into fluid housing (AK).
313872N
27
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Maintenance
11. Use hex nut driver to install fluid manifold (AD).
Torque fluid manifold bolt to 20-30 in-lb
2. Use 5/16 in. nut driver (supplied) to remove
(2.26-3.39 N•m). Connect air quick coupler (AC).
NOTICE
To prevent cross-contamination of the orifices do
not interchange A component and B component
parts. The A component orifice is marked with an
A.
AK
AD
AC
4. Remove all items from front end to enable cleaning
ti19571a
5. Use appropriate drill bits to clean fluid housing pas-
12. Connect signal cable.
Clean Fluid Housing Passages
CB
CB
If necessary, use drill bits to clean the passages in the
CA
CC
CC
CA
ti19572a
Key:
CA Orifice Passage
CB Fluid Inlets
Cleanout Tool:
27/64” drill bit
1/8” drill bit
(on bottom of fluid housing)
CC Nozzle
1/4” drill bit
FIG. 22: Fluid Housing Passages
TI19547a
FIG. 21
8. Install orifices. Torque to 20-30 in-lb
(2.26-3.39 N•m).
28
313872N
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Maintenance
Clean Orifice
Replace Mix Chamber and Front
Seal
2. Use 5/16 in. nut driver (supplied) to remove
17
NOTICE
18
To prevent cross-contamination of the orifices do
not interchange A component and B component
parts. The A component orifice is marked with an
A.
19
ti19574a
NOTE: The cap is held in place with reverse threads.
3. Remove cap (25f) from orifice (25g).
2. Use 5/16 in. nut driver (supplied) to remove
orifices (25, 26, 27).
3. Use a 3/4 in. wrench to remove front pour tip (19).
4. Connect air quick coupler (AC).
25g
25d
25e
5. Press and release trigger to push out the mix
chamber (17) and front seal (18) and discard.
25a
25b
25f
6. Disconnect air quick coupler (AC).
25h
25c
ti19573a
7. Install new mix chamber and front seal.
8. Replace front pour tip and torque to 60-70 in-lb
(6.78-7.91 N•m).
4. Remove needle (25h) from orifice. Thoroughly
inspect all o-rings and replace if necessary.
NOTICE
5. If necessary, use drill bit that is the same size as the
orifice to drill out the orifice. Orifice size is marked
on the orifice.
To prevent cross-contamination of the orifices do
not interchange A component and B component
parts. The A component orifice is marked with an
A.
6. Use Fusion grease to liberally lubricate all o-rings.
7. Reassemble in reverse order. Torque orifice body
into orifice cap to 60-70 in-lb (6.78-7.91 N•m).
Torque orifices into fluid housing to 20-30 in-lb
(2.26-3.39 N•m).
9. Replace orifices. Torque to 20-30 in-lb
(2.26-3.39 N•m).
NOTE: Back-up ring (25e) is placed behind the o-ring
(25d) on the needle.
313872N
29
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Repair
Repair
Tools Required
Replace Cartridge
Tools required to complete some gun repair procedures:
•
•
•
•
•
•
•
•
•
15/16 in. wrench
flat head screwdriver (supplied)
5/16 hex nut driver (supplied)
1/2 in. deep well socket
3/4 in. deep well socket
5/64 in. allen wrench (supplied)
9/64 in. allen wrench
The cartridge is necessary for proper operation of the
gun. Replacement of the cartridge is unnecessary for
the lubrication of the purge rod.
5/32 in. allen wrench
Phillips screwdriver
Lubrication
ally lubricate all o-rings, seals, and threads.
NOTICE
Use only Throat Seal Liquid on the o-rings, seals,
and threads of the cartridge. Fusion grease or
other petroleum-based or vegetable-based lubri-
cants will cause cartridge o-rings and seals to swell
and stick.
30
313872N
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Repair
6. Pull fluid housing away from gun body to remove. If
fluid housing cannot be removed perform the follow-
ing steps.
Remove Front End
a. Attach air quick coupler.
b. Pull and release the trigger or press and release
the red button on the solenoid valve.
NOTICE
Proper attachment of front end is critical. Do not
operate gun if front end is loose or not snug against
body. Improper attachment can cause slow leaks.
c. Remove fluid housing.
d. Disconnect air quick coupler.
7. Disengage purge rod from ball socket in piston shaft
then remove purge rod.
3. Disconnect air quick coupler (AC). Use hex nut
driver to remove fluid manifold (AD).
AD
ti19576a
AC
8. Inspect fluid housing o-rings for wear or damage.
Replace if necessary.
ti19568a
4. Disconnect signal cable.
5. Rotate fluid housing (AK) 45 degrees counterclock-
wise to disengage fluid housing slots.
AK
ti19575a
313872N
31
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Repair
Disassemble Front End
Assemble Front End
NOTICE
NOTICE
To prevent cross-contamination of the equipment’s wet-
ted parts, never interchange component A (isocyanate)
and component B (resin) parts. The gun is shipped with
the A side on the left. The fluid manifold, fluid housing,
side seal assembly, check valve cartridge, and mix
chamber are marked on the A side.
To prevent cross-contamination of the equipment’s wet-
ted parts, never interchange component A (isocyanate)
and component B (resin) parts. The gun is shipped with
the A side on the left. The fluid manifold, fluid housing,
side seal assembly, check valve cartridge, and mix
chamber are marked on the A side.
16b
3
26a
26
19
18
26
16c
6
19
56
17
18
55
56
17
55
20
7
21
7
20
22
23
21
25a
3
22
23
3
25
16t
25
16e
16e
ti19577a
28
3
ti19578a
2. Remove check valve assembly (16e).
3
Torque to 20-30 in-lb (2.26-3.39 N•m)
Torque to 60-70 in-lb (6.78-7.91 N•m)
3. Remove orifice (25). Repeat for opposite side.
4. Remove pour tip (19).
6
5. Remove front packing (18), mix module (17),
scraper assembly (55), and o-ring (56).
1. Install o-ring (20), rear packing housing (21),
seal (22), and rear packing nut (23). Torque rear
packing nut to 20-30 in-lb (2.26-3.39 N•m).
6. Remove rear packing nut (23), seal (22), rear pack-
ing housing (21), and o-ring (20).
2. Install o-ring (56), scraper assembly (55), mix
module (17), and then front packing (18).
3. Install pour tip (19) hand-tight.
4. Install purge rod into front of fluid housing. Press
purge rod through housing until 3/4 in. of ball socket
end of purge rod extends out of housing as shown in
32
313872N
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Repair
tions.
6. Push fluid housing flush to the gun body. Rotate
fluid housing 45 degrees clockwise to engage fluid
housing slots.
AK
6. Install orifice components (25). Install orifice
cap (25a) and torque to 20-30 in-lb (2.26-3.39 N•m).
Repeat for opposite side.
Attach Front End
NOTICE
ti19580a
Proper attachment of front end is critical. Do not
operate gun if front end is loose or not snug against
body. Improper attachment can cause slow leaks.
7. Torque pour tip (19) to 60-70 in-lb (6.7-9.1 N•m).
8. Use hex nut driver to install fluid manifold (AD).
Torque fluid manifold bolt to 20-30 in-lb
1. Engage piston safety lock.
(2.26-3.39 N•m). Connect air quick coupler (AC).
2. Liberally lubricate o-rings and install on fluid
housing (AK).
3. Apply thin coat of TSL to purge rod.
4. Install fluid housing onto purge rod.
5. Insert end of purge rod into ball socket in piston
shaft.
AD
AC
ti19571a
9. Connect signal cable.
ti19579a
FIG. 23
313872N
33
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Repair
6. Unscrew piston safety lock assembly and remove.
Inspect o-ring and replace if necessary.
Pistons and Bulkhead
User should have piston seals kit 24D312 available
before performing this procedure.
2. Use hex nut driver to remove fluid manifold (AD).
TI14465a
7. Place 1/2 in. socket on the piston shaft through the
front of the gun body. Entering through the rear of
the gun body, place a 3/4 in. socket with extension
on the rear piston. Hold piston shaft in place and
remove the rear piston. Inspect rear piston o-ring
and replace if necessary.
AD
Access the
Pistons and
Bulkhead
ti19562a
Piston
Shaft
3. Disconnect signal cable.
TI14465a
5. Disconnect air quick coupler (AC).
8. Entering through the rear of the gun body, place a
3/4 in. socket with extension on the bulkhead.
Remove the bulkhead. Inspect bulkhead o-rings and
replace as necessary.
AC
9. Push piston shaft towards rear of gun to remove
front piston and piston shaft from the gun body.
10. Use a 1/2 in. socket on the piston shaft and
15/16 in. wrench on the front piston to remove front
piston from piston shaft.
TI14463a1
11. Inspect o-rings. Replace if worn or damaged. Liber-
ally lubricate o-rings then reinstall.
12. Apply medium strength thread locker to threads
then install front piston onto piston shaft. Torque to
100-110 in-lb (11.3-12.4 N•m). See Component
13. Install piston shaft and piston assembly into gun
34
313872N
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Repair
14. Install bulkhead onto piston shaft. Torque to
100-110 in-lb (11.3-12.4 N•m). See Component
Purge Rod
15. Apply medium strength threadlocker to threads then
install rear piston onto piston shaft. Torque to
100-110 in-lb (11.3-12.4 N•m). See Component
16. Install piston safety lock. See Component Identifi-
3. Disconnect air quick coupler (AC). Use hex nut
driver to remove fluid manifold (AD).
18. Use hex nut driver to install fluid manifold (AD).
Torque fluid manifold bolt to 20-30 in-lb
(2.26-3.39 N•m). Connect air quick coupler (AC).
AD
AC
AD
AC
ti19568a
4. Disconnect signal cable.
ti19571a
rod for wear or damage. Replace if necessary.
19. Connect signal cable.
6. Use 3/4 in. wrench to loosen front tip. Coat purge
rod with TSL then replace purge rod.
8. Attach air quick coupler to fully extend purge rod.
Tighten front tip to 60-70 in-lb (6.78-7.91 N•m)
9. Install fluid manifold. Torque fluid manifold bolt to
20-30 in-lb (2.26-3.39 N•m).
10. Connect signal cable.
313872N
35
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Repair
Solenoid Valve
2. Disconnect air quick coupler (AC). Use hex nut
driver to remove fluid manifold (AD).
AD
AC
ti19568a
3. Disconnect electronic cables from solenoid valve
and handle (if installed).
4. Use 5/32 in. allen wrench to remove handle mount-
ing plate screws. Remove handle mounting plate
5. Use Phillips screwdriver to remove solenoid valve.
Inspect and replace if necessary. Inspect gasket on
bottom of solenoid valve and replace if necessary.
6. Use a 9/64 in. allen wrench to remove the solenoid
valve mounting plate and gasket. Inspect gasket
7. Assemble in reverse order. Torque fluid manifold
bolt to 20-30 in-lb (2.26-3.39 N•m). Torque screws
connecting handle to body to 20-30 in-lb
(2.26-3.39 N•m). See Component Identification
36
313872N
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Troubleshooting
Troubleshooting
checking or repairing gun.
NOTICE
To prevent cross-contamination of the equipment’s wet-
ted parts, never interchange component A (isocyanate)
and component B (resin) parts. The gun is shipped with
the A side on the left. The fluid manifold, fluid housing,
side seal assembly, check valve cartridge, and mix
chamber are marked on the A side.
Use the following table to check all possible problems
and causes before disassembling gun. See Mainte-
enced procedures.
Problem
Cause
Solution
Gun does not fully actuate when trig- Safety lock engaged
Disengage piston safety lock
Clean breather plug
Replace if necessary
Open valves.
gered
Plugged breather plug
Damaged air valve
Fluid does not pour when gun is fully Closed fluid valves
actuated
Plugged orifice ports
Plugged check valves
Safety lock engaged
Plugged breather plug
Damaged piston o-rings
Damaged air gasket
Clean orifice ports
Clean check valves
Disengage piston safety lock
Clean breather plug
Replace air piston o-rings
Replace
Gun actuates slowly
Dirty or damaged air valve
Clean or replace valve
Gun delays, then actuates abruptly
Cured material around the purge rod Inspect purge rod, mix module, and
orifices. Replace if necessary
Gun does not actuate when triggered Air supply to gun is shut off
Foam build-up around front tip
Open air supply
1) Clean off front tip.
2) Use 3/4 in. wrench to loosen front
tip 1/8 turn and re-tighten.
Signal cable is disconnected
Connect signal cable
Clean orifice ports
Clean check valves
Pressure imbalance
Plugged orifice ports
Plugged check valves
Viscosities not equal
Adjust temperature or orifice needle
to compensate
Plugged fluid screens
Damaged fluid valves
Clean screens
Replace
Fluid does not shut off when fluid
valves are closed
313872N
37
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Troubleshooting
Problem
Cause
Solution
Burst of air from muffler when gun is Normal
triggered
No action required
Steady air leakage from muffler
Damaged air valve
Replace
Replace
Replace
Replace
Damaged air gasket
Damaged piston o-rings
Damaged o-ring
Leak between air cylinder and fluid
housing
Material leaking out weep ports in
fluid housing near air cylinder
Mix module and rear seal worn
Flow rate is too high
Inspect and replace mix module and
rear seal, clean fluid housing
Material is spraying out of nozzle
Change one or more of the following
variables to obtain a flow rate of
10 to 15 pounds per minute
•
•
Orifice size
Material Temperature
38
313872N
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Troubleshooting
Electrical Diagram
1
2
4
5
1
1
3
2
MALE
FEMALE
1
2
1
2
4
2
3
4
5
YE
BLACK #2
BLACK #1
3
1
5
BROWN
BLUE
SWITCH SIGNAL
1
2
3
4
5
1
2
3
4
5
24VDC COMMON
SOLENOID ACTIVATION
4
5
4
5
1
1
1
3
2
3
2
MALE
FEMALE
MALE
313872N
39
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Parts
Parts
6
19
2
3
4
5
6
8
Torque to 125-135 in-lb (14.1-15.3 N•m)
Torque to 20-30 in-lb (2.26-3.39 N•m)
Torque to 100-110 in-lb (11.3-12.4 N•m)
Torque to 10-12 in-lb (1.13-1.36 N•m)
Torque to 60-70 in-lb (6.78-7.91 N•m)
Apply medium thread locker to threads
16b
55
18
3
17
26
16c
16a
1
24
3
3
22
7
56
25a
7
21
20
25d
3
23
2
25e
25b
25g
16g
16h
13
2
16t
25h
25c
7
8
25f
3
6 4
16e
5
5
1
9
11
5
29
31 3
30
28
3
12a
12b
14
5
4
32
3
8
4 8
34
35
33
10
3
3
4
12
Model 257999 Shown
37
54
ti19585a
36
4-Hose Fluid Manifold
249523
28
52
43
48
47
43
49
28
ti14472a
ti7134a
40
313872N
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Parts
Quantity
257999,
EP Gun, 250,
0.031 in.
24C932,
EP Gun, 250,
0.031 in.
orifice,
Ref
1
2
Part
Description
Handheld
orifice, Auto
24D682
24F033
113003
24E864
◆
CYLINDER, machined
HOOK, vertical mount assembly
SCREW, socket head cap
SHAFT, piston, dual
PACKING, o-ring
1
1
2
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
6
1
6
1
1
2
2
1
1
1
3
1
1
1
4
1
1
2
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
6
1
6
1
1
2
2
1
1
1
3
1
1
1
4
3
4
5
6
7
8
24E972
◆
PISTON, front
PACKING, o-ring
BULKHEAD, applicator
PACKING, o-ring
PISTON, rear
24E973
◆
9
10
11
12
13
14
15
16a
24E974
◆
O-RING
24D295
15T897
188554
STOP, assy, safety
PLUG, air valve
PACKING, o-ring
PIN, roll
✠
HOUSING, fluid, assy, 250
FITTING, grease, 1/4-28
PLUG, hole DP-750
VALVE, check
O-RING, outer housing
PACKING, o-ring 022
PLUG, pipe
16b 295229✠
16c 1704-2✠
16e ✿❄✠
16g 248132❖✠
16h 256773❖✠
16t
17
18
19
20
21
22
23
24
25
26
28
29
30
31
32
33
34
35
✠
*‡✠
MODULE, mix, 250 rod
16P943*‡✠ PACKING, front, 250 rod
16T794✠
***✠
15Y980✠
***‡✠
TIP, pour, 250 rod
PACKING, o-ring
HOUSING, packing, rear, 250 rod
SEAL
24D678✠
24D317✠
†
NUT, packing, rear, 250
ROD, purge, 250
RESTRICTOR, adjustable, 250, 031
RESTRICTOR, adjustable, iso, 250, 031
MANIFOLD, fluid
GASKET, solenoid, manifold
MANIFOLD, solenoid, assy
SCREW, socket head cap
VALVE, solenoid, 4 way
CORD SET, euro/male, din/female
PLATE, adapter, handle
SCREW, socket head cap
†
246012
24D315
24E975 ★
106245
24M121 ★
24M122 ★
24E865 ★
101888 ★
313872N
41
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Parts
Quantity
257999,
EP Gun, 250,
0.031 in.
24C932,
EP Gun, 250,
0.031 in.
orifice,
Ref
36
37
41
43
44
45
46
47
48
49
51
52
54
55
56
Part
Description
Handheld
orifice, Auto
24D073
C19980
172479 ▲
112307
117510
15B772
15B565
117661
117642
118575
222385 ▲
295598
24D320
**✠
HANDLE, 2k dispense
SCREW, cap, socket hd
TAG, warning
1
4
1
2
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
ELBOW, street
COUPLER, line, air, 1/4 npt
HOSE, air, 18 inch
VALVE, ball
PIN, vise
TOOL, nut driver
TOOL, screw driver, 1/8 blade
TAG, warning
TOOL, wrench, hex
CONNECTOR, splitter
SCRAPER, assembly
PACKING, o-ring, 015
1
1
115719**✠
▲ Replacement Danger and Warning labels, tags and
cards are available at no cost.
‡ Suggested spares. These parts should be kept
on-hand to prevent down time. Kits 24D321, 246731,
*
Parts included in Kit 16T549.
** Parts included in Kit 16T531.
*** Parts included in Kit 24E252.
◆ Parts included in Kit 24D312.
❖ Parts included in Kit 24D313.
✿ Parts included in Kit 246352.
❄ Parts included in Kit 246731.
✠ Parts included in Kit 16T553.
★ If installed gun components are prior to October
2011, kit 24M123 is necessary when replacing com-
ponents.
42
313872N
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Kits
Kits
See Maintenance on page 24 and Repair on page 30 for appropriate kit installation procedures. See Complete
Series A and B Kits
The following kits are for series A and B guns only.
Series A and B guns utilize the TSL cartridge for lubrica-
tion of the purge rod and the front head assembly does
not contain a scraper.
Parts included in Kit
Kit
Description
Description Kit Number
Qty
Illustration
17 18
250 Mix
24D314
Mix Chamber
Front Bearing
Mix Chamber
Front Bearing
1
Chamber
1
375 Mix
24D322
1
Chamber
1
Throat Seal
Liquid Bleed
Port O-Ring
Kit
246354
O-Ring
6
1
O-Ring Installation
Tool
375 Iso Ori- 24D239 -
Orifice Housing
O-Ring
1
1
1
1
1
1
1
1
1
1
fice
24D254;
see Orifice
Kits on
O-Ring
page 50
O-Ring
Needle
Backup Ring
O-Ring
Iso Orifice Cap
Orifice Spacer
Cleanout Drill
313872N
43
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Kits
Parts included in Kit
Kit
Description Kit Number
Description
Qty
1
Illustration
375 Orifice
24C761 -
24C766,
24C794 -
24C804;
Orifice Housing
O-Ring
1
O-Ring
1
1
Kits on
page 50
Needle
1
Backup Ring
1
O-Ring
1
Orifice Cap
Orifice Spacer
Cleanout Drill
1
1
1
Fluid Hous-
ing Seals
24D313
24E611
Housing Outer
O-Ring
1
16g
Housing Inner
O-Ring
1
6
16h
Outer Fluid
Housing
O-Ring
16g
O-Ring Kit
375 Lip Seal 24D325
375 Lip Seal
6
20
22
TSL Check
Valve Kit
24B843
Check Valve Seat
Ball
1
1
1
1
Spring
O-Ring
44
313872N
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Kits
All Series Kits
The following kits are for all series EP guns.
Parts included in Kit
Kit
Description
Description Kit Number
Qty
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Illustration
250 Iso Ori- 24D223 -
Orifice Housing
O-Ring
fice
24D238;
see Orifice
Kits on
O-Ring
page 50
O-Ring
Needle
Backup Ring
O-Ring
Iso Orifice Cap
Cleanout Drill
Orifice Housing
O-Ring
250 Orifice
24C751 -
24C756,
24C805 -
24C815;
O-Ring
Kits on
page 50
Needle
Backup Ring
O-Ring
Orifice Cap
Cleanout Drill
O-Ring
Orifice
O-Ring Kit
24D321
248130
25c
25b
25a
O-Ring
O-Ring
O-Ring
25e
25d
Backup Ring
Orifice
O-Ring
6
25c
O-Ring Kit
25c
313872N
45
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Kits
Parts included in Kit
Kit
Description Kit Number
Description
Qty
Illustration
Orifice
O-Ring Kit
248128
O-Ring
6
25a
25a
Iso Check
Valve
246731
Check Valve Hous-
ing
1
1
Spring Retaining
Screw
Carbide Ball
Filter
1
1
1
1
1
1
Check Valve Spring
O-Ring
O-Ring
Check Valve 246352
Check Valve Hous-
ing
Spring Retaining
Screw
1
Carbide Ball
Filter
1
1
Check Valve Spring
O-Ring
1
1
O-Ring
1
40 Mesh Fil- 246357
ter Kit (40
40 Mesh Screen
10
mesh,
0.015 in.,
375 micron)
60 Mesh Fil- 246358
ter Kit (60
mesh,
0.010 in.,
238 micron)
60 Mesh Screen
80 Mesh Screen
10
10
80 Mesh Fil- 246359
ter Kit (80
mesh,
0.007 in.,
175 micron)
46
313872N
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Kits
Parts included in Kit
Kit
Description
Description Kit Number
Qty
Illustration
Check Valve 248129
O-Ring Kit
O-Ring
6
Check Valve 248133
Face O-Ring
Kit
O-Ring
6
Inner Fluid
Housing
O-Ring Kit
256773
O-Ring
6
16h
250 Lip Seal 24E252
250 Lip Seal
O-Ring
6
6
20
22
Piston Seals 24D312
Rod O-Ring
3
1
1
1
5
5
7
Front Piston O-Ring
Bulkhead O-Ring
Rear Piston O-Ring
9
11
5
313872N
47
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Kits
Parts included in Kit
Kit
Description
Description Kit Number
Qty
1
Illustration
PistonSafety 24D295
Stop
Back Cap
O-Ring
1
Piston Stop
Safety Stop Shaft
O-Ring
1
1
1
Spring
1
Stop Shaft
O-Ring Kit
257425
24D073
O-Ring
6
Located inside back cap
Handle
2K Electric Handle
1
4
Handle Mounting
Screw
Trigger
Switch Har-
ness
24D049
Trigger Switch
Switch Spacer
Air Valve Plug
Strain Relief
1
1
1
1
1
Signal Cable
EP Solenoid 24M123
Conversion
Solenoid Valve
Cord Set
1
1
4
1
1
(Required for
components
prior to Octo-
ber 2011)
Screw
Adapter Plate
Solenoid Mount
48
313872N
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Kits
Series C Kits
The following kits are for series C guns only. Series C
guns do not utilize the TSL cartridge for lubrication of
the purge rod and the front head assembly does contain
a scraper.
Parts included in Kit
Kit
Description
Description Kit Number
Qty
Illustration
250 Mix
16T549
Mix Chamber
Front Bearing
1
Chamber
(Requires
16T794 if
using
1
series A fluid
housing)
Pour Tip
16T794
Pour Tip
1
Scraper Car- 16T531
tridge
Scraper Cartridge
O-ring
1
1
Fluid Hous-
ing Kit
(Orifices sold
separately)
16T553
Fluid Housing with
centerline compo-
nents
1
Grease Gun
Grease
TSL
1
1
1
313872N
49
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Kits
Orifice Kits
In the following table, shaded rows indicate “Super Stan-
dard” items that are typically stocked and provide the
best delivery dates.
Impingement
Port Size
Kit Type and Kit Number
250 Model Polyol 250 Model Iso
in.
mm
0.41
0.51
0.61
0.71
0.79
0.89
0.99
1.07
1.19
1.32
1.40
1.52
1.60
1.70
1.85
2.18
Orifice Kit
24C805
24C751
24C806
24C807
24C752
24C808
24C809
24C810
24C753
24C811
24C812
24C754
24C813
24C755
24C815
24C756
Orifice Kit
24D229
24D223
24D230
24D231
24D224
24D232
24D233
24D234
24D225
24D235
24D236
24D226
24D237
24D227
24D238
24D228
0.016
0.020
0.024
0.028
0.031
0.035
0.039
0.042
0.047
0.052
0.055
0.060
0.063
0.067
0.073
0.086
All 250 Super
Standard Orifices
24E250
50
313872N
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Kits
Drill Bit Kits
For cleaning fluid housing passages and orifices. Drill bit illustrations are actual size for comparison. See Clean Fluid
Orifice Size
Kit
Drill Bit Qty in
Number
Size
Kit
in.
mm
Illustration
24D289
246631
246815
6
0.016
#78
0.41
6
6
0.020
0.024
#76
#73
0.51
0.61
248892
24D293
24D294
6
6
6
0.028
0.031
0.035
#70
#68
0.71
0.79
#65
0.89
248640
246629
249764
246628
246809
246627
249113
24D290
6
6
6
6
6
6
6
6
0.039
0.042
0.047
0.052
0.055
0.060
0.063
0.067
#61
#58
0.99
1.07
1.20
1.32
1.40
1.52
1.60
1.70
#56
#55
#54
#53
1/16 in.
#51
24D291
246625
246624
6
3
3
0.073
#49
1.85
#44
2.18
2.39
0.086
0.094
3/32 in.
249115
24D327
6
1
1/8 in.
#15
3.18
4.57
0.125
0.180
313872N
51
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Kits
Complete O-ring Placement Guide
The following illustration shows all gun o-rings at actual size. See Kits on page 43 for o-ring kit details including
quantities of each o-ring in each kit.
16a
16b
9
7
25d
25c
14
12b
12a
11
16c
56
25a
5
25b
52
313872N
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Accessories
Accessories
Lubricant for Gun Rebuild
Circulation Manifold
246362
NOTICE
Use only Throat Seal Liquid on the o-rings, seals,
and threads of the cartridge. Fusion grease or
other petroleum-based or vegetable-based lubri-
cants will cause cartridge o-rings and seals to swell
and stick.
Attaches to gun fluid manifold to enable preheating of
hose. See manual 309818.
248279, 4 oz (113 gram) [10]
High adhesion, water resistant, lithium-based lubricant.
Fluid Inlet Cover
T3877a
15C850 Recirculation Block
®
T3877a1
Reactor IP Harness
24D679
Gun Cleaning Kit
15D546
Attaches to gun signal cable to enable connection to
Reactor IP proportioners. 10 ft cable, male 9-pin to
female 5-pin.
Kit includes gun pick, tip cleaning tool, o-ring tool, utility
knife and blades, and seven different brushes.
Flushing Manifold
15B817 Manifold Block
Attaches to gun fluid manifold to enable flushing.
TI15103a
Signal Cable Extensions
24E898
ti2647a
25 ft extension cable, male 5-pin to female 5-pin.
24E897
50 ft extension cable, male 5-pin to female 5-pin.
313872N
53
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Accessories
Solvent Flush Canister Kit
Grease Cartridge for Gun
248139, 1 qt (0.95 liter) Solvent Cup
Shutdown
Includes flushing manifold to flush gun with solvent. Por-
table for remote flushing. See manual 309963.
248280 Cartridge, 3 oz [10]
Specially formulated low viscosity grease flows easily
through gun passages, to prevent two-component cur-
ing and keep fluid passages clean.
ti19567a
Solvent Flush Pail Kit
248229, 5.0 gal. (19 liter) Pail
Includes flush manifold with individual A and B shutoff
valves, and air regulator. See manual 309963.
ti19586a
54
313872N
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Technical Data
Technical Data
Maximum Fluid Working Pressure . . . . . . . . . . . . . . . . 3000 psi (20.7 MPa, 207 bar)
Minimum Air Inlet Pressure. . . . . . . . . . . . . . . . . . . . . . 80 psi (0.55 MPa, 5.5 bar)
Maximum Air Inlet Pressure . . . . . . . . . . . . . . . . . . . . . 100 psi (0.69 MPa, 6.9 bar)
Maximum Fluid Temperature . . . . . . . . . . . . . . . . . . . . 180°F (82°C)
Air Inlet Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/4 npt Quick Disconnect Nipple
A Component Inlet Size . . . . . . . . . . . . . . . . . . . . . . . . -5 JIC, 1/2 - 20 UNF
B Component Inlet Size . . . . . . . . . . . . . . . . . . . . . . . . -6 JIC, 9/16 - 18 UNF
Weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Models with Handle: 7.4 lb (3.4 kg)
Models without Handle: 6.4 lb (2.9 kg)
Sound pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80.22 dB(A) at 100 psi (0.7 MPa, 7 bar)
Sound power, measured per ISO 9416-2 . . . . . . . . . . . 80.64 dB(A) at 100 psi (0.7 MPa, 7 bar)
Materials of Construction . . . . . . . . . . . . . . . . . . . . . . . Aluminum, stainless steel, acetal, chemically resistant
o-rings, carbon steel, fluoroelastomer o-rings
Wetted Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Aluminum, stainless steel, acetal, chemically resistant
o-rings
313872N
55
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Technical Data
313872N
57
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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: 1-800-746-1334 Fax: 330-966-3006
All written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
Original instructions. This manual contains English. MM 313872
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 2010, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
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Revised September 2014
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