Graco 313536H User Manual
Instructions - Parts
313536H
GX-16
For dispensing polyol and isocyanate materials only. For professional use only.
For indoor use only. Not approved for use in European explosive atmosphere
requirements.
3000 psi (21 MPa, 207 bar) Maximum Fluid Working Pressure
2500 psi (17 MPa, 172 bar) Maximum Hydraulic Working Pressure
180°F (82°C) Maximum Fluid Temperature
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
EN
Model 257496 shown
ti12896a
Contents
Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Important Two-Component Material Information . 6
Isocyanate Conditions . . . . . . . . . . . . . . . . . . . . . 6
Material Self-ignition . . . . . . . . . . . . . . . . . . . . . . 6
Keep Components A and B Separate . . . . . . . . . 6
Moisture Sensitivity of Isocyanates . . . . . . . . . . . 7
Foam Resins with 245 fa Blowing Agents . . . . . . 7
Changing Materials . . . . . . . . . . . . . . . . . . . . . . . 7
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Trigger Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Gun Connections . . . . . . . . . . . . . . . . . . . . . . . 10
Fluid Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Gun Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Shutoff Valve Setup . . . . . . . . . . . . . . . . . . . . . 12
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Theory of Operation . . . . . . . . . . . . . . . . . . . . . 14
Pressure Relief Procedure . . . . . . . . . . . . . . . . . . 15
Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Recommended Tools . . . . . . . . . . . . . . . . . . . . . 16
Grease the Gun . . . . . . . . . . . . . . . . . . . . . . . . . 16
Clean and Service the Orifices and Filters . . . . 17
Proximity Switch Replacement Procedure . . . . 18
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Gun Models 257496, 257498, 257499,
257505, 257506, 257507, 24J187, 24E876 20
Gun Models 257492, 257493, 257494, 257495 22
Gun Models 257497, 257502, 257503, 257504,
24E877, 24E878 . . . . . . . . . . . . . . . . . . . . . 24
Gun Models 24K233, 24K234 . . . . . . . . . . . . . . 26
Dispenser Models 257513, 257514, 257515 . . . 28
Orifices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Gun Handle Kit 24K223 . . . . . . . . . . . . . . . . . . . 31
Gun Handle Models 257509, 257510 . . . . . . . . 32
Pour Handle Models 257594, 257596 . . . . . . . . 33
Optional Shutoff Valve Kit . . . . . . . . . . . . . . . . . 34
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 38
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 38
2 313536H
Models
Part No. Description
257492 GX-16 Pour Gun, 24:1, Pour Handle, Right Side Chemical Tubes,
Star-Shaped Trigger Switch Connector
257493 GX-16 Pour Gun, 24:1, Pour Handle, Left Side Chemical Tubes,
Star-Shaped Trigger Switch Connector
257494 GX-16 Pour Gun, 24:1, Pour Handle, Right Side Chemical Tubes, Cir-
cular Trigger Switch Connector
257495 GX-16 Pour Gun, 24:1, Pour Handle, Left Side Chemical Tubes, Circu-
lar Trigger Switch Connector
257496 GX-16 Pour Gun, 24:1, Isolated Pistol Handle
257497 GX-16 Pour Gun, 24:1, No Handle
257498 GX-16 Pour Gun, No Handle, No Orifice
257499 GX-16 Pour Gun, Reverse Block, No Handle, No Orifice
257502 GX-16 Pour Gun, 1:1, No Handle
257503 GX-16 Pour Gun, 1:1, No Handle, No Fittings
257504 GX-16 Pour Gun, 1:1, No Handle, 3 ft Hoses
257505 GX-16 Pour Gun, 1:1, Pistol Handle, No Orifice, Proximity Switch
257506 GX-16 Pour Gun, 1:1, Isolated Pistol Handle, Proximity Switch
257507 GX-16 Pour Gun, 1:1, Isolated Pistol Handle, No Orifice, Proximity
Switch
24E876◆
24E877◆ GX-16 Pour Gun, HFR, NVH, Right, 24:1
24E878◆ GX-16 Pour Gun, HFR, NVH, Right, Basic
24J187◆ GX-16 Pour Gun, HFR, NVH, Straight, 24:1
24K233◆ GX-16 Pour Gun, HFR, NVH, Left, 24:1
24K234◆ GX-16 Pour Gun, HFR, NVH. Left, Basic
GX-16 Pour Gun, HFR
™
, NVH, Straight, Basic
Models
◆ Models used specifically for HFR machines.
313536H 3
Warnings
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back
to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where
applicable.
WARNING
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, inhalation 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 manufacturer.
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
4 313536H
Warnings
WARNING
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not exceed the maximum working pressure or temperature rating of the 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 manufacturer’s replacement parts only.
• Do not alter or modify equipment.
• Use equipment only for its intended purpose. Call your distributor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not kink or over bend hoses or use hoses to pull equipment.
• Keep children and animals away from work area.
• Comply with all applicable safety regulations.
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent fire and explosion:
• Use equipment only in well ventilated area.
• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic
drop cloths (potential static arc).
• Keep work area free of debris, including solvent, rags and gasoline.
• Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes
are present.
• Ground all equipment in the work area. See Grounding instructions.
• Use only grounded hoses.
• Hold gun firmly to side of grounded pail when triggering into pail.
• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment
until you identify and correct the problem.
• Keep a working fire extinguisher in the work area.
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.
313536H 5
Important Two-Component Material Information
WARNING
PRESSURIZED ALUMINUM PARTS HAZARD
Use of fluids that are incompatible with aluminum in pressurized equipment can cause serious chemical 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 supplier for compatibility.
Important Two-Component Material Information
Isocyanate Conditions
Spraying or dispensing materials containing isocyanates 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.
Prevent inhalation of isocyanate mists, vapors, and
atomized particulates by providing sufficient ventilation in the work area. If sufficient ventilation is not
available, a supplied-air respirator is required for
everyone in the work area.
To prevent contact with isocyanates, appropriate personal protective equipment, including chemically
impermeable gloves, boots, aprons, and goggles, is
also required for everyone in the work area.
Material Self-ignition
Keep Components A and B Separate
Cross-contamination can result in cured material in
fluid lines which could cause serious injury or damage equipment. To prevent cross-contamination of
the equipment’s wetted parts, never interchange
component A (isocyanate) and component B (resin)
parts.
Some materials may become self-igniting if applied
too thickly. Read material manufacturer’s warnings
and material MSDS.
6 313536H
Important Two-Component Material Information
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.
NOTE: The amount of film formation and rate of crystallization varies depending on the blend of ISO, the
humidity, and the temperature.
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.
• Keep the ISO lube pump reservoir (if installed) filled
with Graco Throat Seal Liquid (TSL
The lubricant creates a barrier between the ISO and
the atmosphere.
• 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.
• Never use solvent on one side if it has been contaminated from the other side.
• Always lubricate threaded parts with ISO pump oil
or grease when reassembling.
™
), Part 206995.
Changing Materials
• When changing materials, flush the equipment multiple 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.
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.
313536H 7
Grounding
Grounding
The equipment must be grounded. Grounding reduces
the risk of static and electric shock by providing an
escape wire for the electrical current due to static build
up or in the event of a short circuit.
Pump: use ground wire and clamp (supplied). Connect
ground clamp to a true earth ground.
Gun: ground through connection to a properly grounded
fluid hose and pump.
Fluid supply container: follow local code.
Solvent pails used when flushing: follow local code.
Use only conductive metal pails, placed on a grounded
surface. Do not place the pail on a non-conductive surface, such as paper or cardboard, which interrupts
grounding continuity.
Maintain grounding continuity: When flushing or
relieving pressure, hold metal part of the gun firmly to
the side of a grounded metal pail, then trigger the gun.
8 313536H
Trigger Lock
Trigger Lock
Verify that the trigger lock is engaged whenever you stop pouring to avoid accidental triggering. Check daily for chemical build-up on trigger, trigger lock, and trigger lock spring that can prevent proper trigger lock function.
Engage
To engage the trigger lock, release the trigger. The trigger lock is spring loaded and automatically engages
when the gun trigger is released.
Trigger Lock
ti14491a1
FIG. 1: Models 257509, 257510
Disengage
To engage the trigger lock, press the trigger lock down.
ti10442a
FIG. 2: Kit 24K223
To disengage the trigger lock, press trigger lock down.
To disengage the trigger lock, press the trigger lock up.
See the following figure.
ti12896a1
ti14491a1
FIG. 3: Models 257509, 257510
313536H 9
FIG. 4: Kit 24K223
ti10441a
Setup
Setup
Gun Connections
D
G
B
F
C
A
ti12897a
E
FIG. 5
Ref Description Tape Color † Fitting Size HFR Systems Only
A
B
C
D
E
F
G
† Only hoses are taped, fittings are not taped.
A Pressure Line Red
A Return Line Red and White
B Pressure Line Blue
B Return Line Blue and White
Hydraulic Open Line Green and White
Hydraulic Close Line Green
Proximity Switch or Plug
(depending on model)
7/16 ORG x
#6 JIC Female
7/16 ORG x
#6 JIC Male
7/16 ORG x
#5 JIC Female
7/16 ORG x
#5 JIC Male
7/16 ORG x
#4 JIC Male Extension
7/16 ORG x
#4 JIC Male Elbow
NA NA NA
7/16 ORG x
#5 JIC Female
7/16 ORG x
#5 JIC Male
7/16 ORG x
#6 JIC Female
7/16 ORG x
#6 JIC Male
7/16 ORG x
#4 JIC Male Extension
7/16 ORG x
#4 JIC Male Elbow
10 313536H
Setup
Fluid Line
Fluid Filter: Use a 25 micron stainless steel element to
filter particles from the fluid as it leaves the pump.
Fluid Drain Valve: Required in your system, to relieve
fluid pressure in the hose and gun.
Gun Setup
Trapped air can cause the pump to cycle unexpectedly,
which could result in serious injury from splashing or
moving parts.
1. Verify hydraulic power pack is off.
2. Install hydraulic hoses to power pack.
NOTE: Pressure should not increase while air is purged
from hoses.
5. Turn off power pack. Verify no pressure exists in
hoses.
6. Remove the 7/16 in. JIC male-male adapter connecting the hydraulic hoses.
7. Attach hydraulic hoses to the gun.
ti14496a
FIG. 7
Customer supplied hydraulic hoses must be at least
1/4 in. inner diameter and rated to at least 2500 maximum working pressure.
3. Use a 7/16 in. JIC male-male adapter at the gun end
to connect hoses together. This creates a hydraulic
fluid circulation loop.
ti14495a
F
IG. 6
8. Set power pack to manual mode.
9. Attach trigger switch cable and proximity switch
cable (if applicable) to gun and power pack.
ti14497a
F
IG. 8
10. Verify power pack pressure is 1800 - 2500 psi.
Adjust pressure as required.
4. Turn on the power pack. Circulate oil for 10 minutes
to purge air from hydraulic hoses.
313536H 11
Setup
11. Install chemical hoses to gun. See FIG. 5 on page
F
IG. 9
10 and F
IG. 9.
ti18184a
Shutoff Valve Setup
The shutoff valves are used to control chemical flow.
Mounting
Use the following mounting dimensions to mount the
GX-16 gun body.
D
B
A
C
A Width: 1.125 in. (28.58 mm)
B Diameter: 0.159 in. (4.04 mm),
10/32 UNF Thread on one side
C From edge: 0.188 in. (4.78 mm)
D From edge: 0.218 in. (5.54 mm)
FIG. 11: Mounting Hole Dimensions
ti14493a
ti18185a
FIG. 10: Shutoff Valve Setup
1. Perform pressure relief procedure. See Pressure
Relief Procedure on page 15.
2. Use four chemical hoses to connect shutoff valves
to gun. See F
IG. 10.
3. Perform gun setup procedure to connect remaining
hoses. See Gun Setup on page 11.
4. Perform Startup procedure on page 13.
B
A
A Width: 0.578 in. (14.7 mm)
B Height: 0.440 in. (11.2 mm)
F
IG. 12: Mounting Block Dimensions
ti14492a
12 313536H
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