Graco 3A2805K Invisipac Gs35 Users Manual Plug Free Hot Melt Applicator, Instructions Parts, English

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Instructions-Parts

InvisiPac® GS35 Plug-Free™
Hot Melt Applicator

3A2805K

For dispensing hot melt adhesive. For professional use only. Not for use in waterwash
environments.
Not approved for use in explosive atmospheres or hazardous locations.
Important Safety Instructions

Read all warnings and instructions in this manual. Save these
instructions.
1500 psi (10.3 MPa, 103 bar) Maximum
Working Fluid Pressure
80 psi (0.5 MPa, 5.5 bar) Maximum Air
Pressure

See page 6 for models and
approval information.

PROVEN QUALITY. LEADING TECHNOLOGY.

EN

Contents
Warnings ........................................................... 3
Approvals........................................................... 5
Models............................................................... 6
Component Identification..................................... 7
Overview............................................................ 8
Grounding.......................................................... 8
Installation.......................................................... 9
Mounting ..................................................... 9
Connect Heated Hose .................................. 9
Connect Solenoid Valve ............................... 9
Connect Triggering Device ........................... 10
Prime Before Using Equipment ..................... 10
Flush........................................................... 11
Install Nozzle ............................................... 11
Select RTD.................................................. 11
Operation........................................................... 12
Pressure Relief Procedure............................ 12
Maintenance ...................................................... 13
Replace Inlet Filter ....................................... 13
Filter Maintenance Guidelines....................... 13
Troubleshooting.................................................. 14

2

Check Module.............................................. 16
Check Nozzle and Module............................ 16
Check Heater .............................................. 17
Check RTD.................................................. 17
Check Thermal Cutoff .................................. 18
Repair................................................................ 19
Before Beginning Repair............................... 19
Replace Heater Cartridge ............................. 20
Replace RTD............................................... 20
Replace Thermal Cutoff................................ 20
Replace Cordset .......................................... 22
Replace Solenoid Valve ............................... 24
Replace Module........................................... 24
Replace Applicator....................................... 24
Notes ................................................................ 25
Parts.................................................................. 26
Kits and Accessories........................................... 44
Dimensions ........................................................ 46
Technical Data ................................................... 50
Notes ................................................................ 51
Graco Extended Warranty ................................... 52

3A2805K

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 symbols refer to procedure-specific
risks. When these symbols appear in the body of this manual or on warning labels, refer back to these
Warnings. Product-specific hazard symbols and warnings not covered in this section may appear throughout
the body of this manual where applicable.

WARNING
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.
ELECTRIC SHOCK HAZARD

This equipment must be grounded. Improper grounding, setup, or usage of the system can
cause electric shock.
• Turn off and disconnect power at main switch before disconnecting any cables and before
servicing equipment.
• Connect only to grounded power source.
• All electrical wiring must be done by a qualified electrician and comply with all local codes
and regulations.
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.

•
•
•
•

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
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.

3A2805K

Pressure Relief Procedure

3

Warnings

WARNING
FIRE AND EXPLOSION HAZARD

Flammable fumes, such as solvent and paint fumes, in
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
instructions.
• Use only grounded hoses.
• Hold gun firmly to side of grounded pail when triggering into pail. Do not use pail liners unless
they are antistatic or conductive.
•
if static sparking occurs or you feel a shock Do not use
equipment until you identify and correct the problem.
• Keep a working fire extinguisher in the work area.
work area

Grounding

Stop operation immediately

.

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
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
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. Alterations or modifications may void agency approvals
and create safety hazards.
• Make sure all equipment is rated and approved for the environment in which you are using it.
• 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.
Technical Data

Pressure Relief Procedure

4

3A2805K

Approvals

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.
PERSONAL PROTECTIVE EQUIPMENT

Wear appropriate protective equipment when in the work area to help prevent serious injury,
including eye injury, hearing loss, inhalation of toxic fumes, and burns. This protective
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.

Approvals

4002346

Conforms to ANSI/UL Std.
499 Certified to CAN/CSA
Std. C22.2 No. 88

3A2805K

5

Models

Models
All models use a 240 V heater. Additional
configurations are available. Contact Graco customer
service for details.
Note

Applicators with Ni 120 RTD types come with
a 6–pin rectangular cordset (24W088). See
Parts, page 26.
Single
Part

Series RTD Type

Solenoid Valve

24P073
24P074
24P246
24P299
24P300
24P307

B
B
B
B
B
B

24 VDC
110 VAC
None
24 VDC
110 VAC
None

Pt 100 (385)
Pt 100 (385)
Pt 100 (385)
Ni 120
Ni 120
Ni 120

Slim (Single)
Part

Series RTD Type

Solenoid Valve

24U021
24U022
24U023
24U024
24U025
24U026

B
B
B
B
B
B

24 VDC
110 VAC
None
24 VDC
110 VAC
None

Pt 100 (385)
Pt 100 (385)
Pt 100 (385)
Ni 120
Ni 120
Ni 120

Part

Series RTD Type

Solenoid Valve

24U027
24U028
24U029
24U030
24U031
24U032

B
B
B
B
B
B

24 VDC
110 VAC
None
24 VDC
110 VAC
None

Part

Series RTD Type

Solenoid Valve

24P075
24P076
24P247
24P301
24P302
24P308

B
B
B
B
B
B

24 VDC
110 VAC
None
24 VDC
110 VAC
None

Pt 100 (385)
Pt 100 (385)
Pt 100 (385)
Ni 120
Ni 120
Ni 120

Pt 100 (385)
Pt 100 (385)
Pt 100 (385)
Ni 120
Ni 120
Ni 120

Quad
Part
24P077
24P078
24P079
24P080
24P250
24P254
24P303
24P304
24P305
24P306
24P309
24P310
*

Dual

6

Low Profile - Dual

Series Module
Spacing
Type*
B
B
B
B
B
B
B
B
B
B
B
B

I
I
II
II
I
II
I
I
II
II
I
II

RTD Type

Solenoid
Valve

Pt 100 (385)
Pt 100 (385)
Pt 100 (385)
Pt 100 (385)
Pt 100 (385)
Pt 100 (385)
Ni 120
Ni 120
Ni 120
Ni 120
Ni 120
Ni 120

24 VDC
110 VAC
24 VDC
110 VAC
None
None
24 VDC
110 VAC
24 VDC
110 VAC
None
None

See Dimensions, page 46.

Low Profile - Quad
Part

Series RTD Type

Solenoid Valve

24U033
24U034
24U035
24U036
24U037
24U038

B
B
B
B
B
B

24 VDC
110 VAC
None
24 VDC
110 VAC
None

Pt 100 (385)
Pt 100 (385)
Pt 100 (385)
Ni 120
Ni 120
Ni 120

3A2805K

Component Identification

Component Identification

A
B
C
D
E
F
G
H
J
K
L
M
N
P

Dispense module
Fluid outlet/nozzle (3/8–24)
Fluid filter (not visible)
Manifold
Fluid inlet (9/16–18, —6 JIC, 37° flare)
Cordset (24W087 shown)
Air tube
Mounting clamp (1/2 in. diameter bar)
Solenoid valve (24 VDC, 110 VAC); not
included with all models
Muffler
Air inlet (3/8 in. diameter tubing)
Manual override switch
Solenoid valve electrical connector
Insulator

Figure 1 24P075 Shown

3A2805K

7

Overview

Overview
The valve uses the air-opened, spring closed mode
of operation. It uses a three-way exhausting solenoid
to control the piston inside the dispense module.
Fluid is filtered through the manifold filter (C) before
entering the dispense module fluid inlet port. Then
the fluid is filtered one final time through the module
filter (P), which is located in each module, directly
before the ball and seat.
When air moves the piston rod and ball from its seat,
it opens the fluid outlet. When the air shuts off, the
spring pushes the piston rod and ball into its seat and
closes the fluid outlet.
The gun should be rigidly mounted and remotely
operated by a melter system and triggering device.
The melter system provides pressurized fluid to the
valve. The triggering device controls the fluid flow by
opening and closing the solenoid valve.

Grounding

The equipment must be grounded to reduce the
risk of static sparking. Static sparking can cause
fumes to ignite or explode. Grounding provides an
escape wire for the electric current.
•
•

follow manufacturer’s recommendations.
grounded through electrical
connection.
•
follow manufacturer’s
recommendations.
•
follow local code.
•
follow local
code. Use only conductive metal pails, placed
on a grounded surface. Do not place the pail
on a nonconductive surface, such as paper or
cardboard, which interrupts grounding continuity.
•
ensure mounting manifold and
electrical power connector are grounded properly.
Pump:

Dispense applicator:

Air compressor:

Fluid supply container:

Solvent pails used when flushing:

To maintain grounding continuity when flushing or
relieving pressure:

Figure 2 Air and Fluid Flow
Air

Fluid

8

3A2805K

Installation

Installation
Mounting
NOTICE
To prevent heat transferring into other components
of the packaging line, ensure that the insulator (P)
is installed.
Low Profile Models: Use a 3/4 in. (19 mm) wrench to
adjust nuts that control position of gun assembly on
threaded rod.
All Other Models: See the following instructions.
Mount manifold on a 1/2 in. (12 mm) diameter bar
using mounting clamp (H) to hold the gun assembly
in place and ensure adhesive is applied properly.
1. Use a 5 mm Allen wrench to loosen the mounting
clamp and slide the gun assembly on the
mounting bar.
2. Tighten the mounting clamp.

2. Connect the cordset (M) to the hose.
3. Connect the hose inlet to the melter system
outlet. See the heated hose manual for
installation guidelines.
4. Connect the hose cordset to melter. See the
heated hose manual for installation guidelines.
Connect Solenoid Valve

1. Connect 3/8 in. diameter air supply tubing to a
clean, dry, and non-lubricated air supply and to
the push-to-connect air inlet fitting (L).

Note

Provide enough room to access sides of
applicator for maintenance and repair.
Figure 5 Air Inlet Fitting
2. Connect solenoid valve to 24 VDC or 110 VAC
signal. See Connect Triggering Device, page 10.
For applicators without a supplied solenoid valve:

Figure 3 Mounting Clamp
Connect Heated Hose

1. Connect the hose fluid outlet to the manifold fluid
inlet (E). Use two 11/16 in. wrenches to tighten
the hose fitting.

• Use solenoid valves with an override switch.
• Ensure that your solenoid valve is connected to the
manifold with tubing rated for 400°F(204°C).
• Ensure the solenoid valve is rated for
high-temperature applications.

Figure 4 Connect the Heated Hose
3A2805K

9

Installation

Connect Triggering Device

Identify if your model uses a 24 VDC or 110 VAC
solenoid valve. Connect solenoid valve to 24 VDC
or 110 VAC signal.

Improper electrical connection can result in electric
shock. All electrical wiring must be done by a
qualified electrician and comply with all local codes
and regulations.
1. Loosen the mounting screw and disconnect the
electrical connector (N) from the solenoid valve
(J). Set the gasket and screw aside.

2. Insert a small screwdriver where the mounting
screw was removed and gently press the
electrical connector (P) out of the electrical
connector housing (N).
3. Thread a three-conductor cable through the strain
relief. Connect the positive and negative wires to
terminals 1 and 2 on the electrical connector (P).
Connect the ground wire to the ground terminal.
Note

It does not matter which terminal
the positive and negative wires are
connected to.
1

2
GND

Solenoid Valve Connector
Figure 7
4. Reassemble the electrical connector (P) and
housing (N). Retighten strain relief.
5. Place the gasket on the housing and connect the
electrical connector into the solenoid valve (J)
with the mounting screw. See Fig. 6.
Prime Before Using Equipment

The equipment was tested with oil, which is left in the
fluid passages to protect parts. Prime the equipment
with hot melt until all of the oil is pushed out before
using the equipment. See Flush, page 11.
Figure 6 Solenoid Valve Electrical Connector

10

3A2805K

Installation

Flush

1. Disconnect or turn off the device which triggers
the solenoid valve.
2. Heat the system to working temperature.
3. Place waste container under the gun to catch the
adhesive.
4. Ensure the nozzle is removed.
5. Press the manual override switch (S) to manually
trigger the solenoid valve.
6. Dispense hot melt (adhesive) until it is clean.

Select RTD
Note

For InvisiPac systems only.
Identify RTD type used in applicator on the system
Advanced Display Module (ADM). The RTD type is
listed on the manifold cover plate. See the InvisiPac
system manual for instructions to configure this
setting.

Figure 8
Install Nozzle

Use 1/2 in. wrench to install nozzle. See
Kits and Accessories, page 44.

3A2805K

NOTICE
An incorrect RTD setting will cause the system
to be incapable of maintaining the temperature
setting. The applicator may overheat and trip the
thermal cutoff, if the applicator uses a PT 100 (385)
and NI 120 is selected on the ADM Setup screen.
The applicator may under-heat if the applicator
uses a NI 120 and PT 100 (385) is selected on the
ADM Setup screen.

• If PT 100 (385) is listed, select PT 100 (385) in the
ADM Setup screens.
• If NI 120 is listed, select NI 120 in the ADM Setup
screens.

11

Operation

Operation
Pressure Relief Procedure

Follow the Pressure Relief Procedure
whenever you see this symbol.

This equipment stays pressurized until pressure
is manually relieved. To help prevent serious
injury from pressurized fluid, such as skin injection,
and splashing fluid, follow the Pressure Relief
Procedure when you stop spraying and before
cleaning, checking, or servicing the equipment.
1. Depressurize system.
2. Close the bleed-type master air valve.
3. Actuate the applicator repeatedly until no fluid
flows.

12

Material inside the module and hose may still
be near setpoint temperature. Wear protective
clothing to avoid severe burns.
4. If you suspect the module nozzle is clogged,
remove nozzle and then actuate the module to
relieve pressure.
5. If you suspect the module or fluid hose is
clogged or that pressure has not been fully
relieved after following the steps above, VERY
SLOWLY loosen inlet fitting, inlet filter, or hose
end coupling to relieve pressure gradually,
then loosen completely. Clear hose or module
obstruction.
6. Turn off air pressure to the solenoid valve.

3A2805K

Maintenance

Maintenance

Material inside the applicator can be near setpoint
temperature. Wear protective clothing to avoid
severe burns.
Daily:

Clean hot melt from exterior of gun.
Weekly:

Inspect the applicator, fluid lines, cordset,
and solenoid cable for wear or damage. See
Repair, page 19 for instructions.
Replace Inlet Filter
NOTICE
Remove the filter when the gun is hot. If the gun is
cold, the adhesive will be hard and the filter may
be difficult to remove or damaged.

1. Disable gun assembly. See
Before Beginning Repair, page 19.

Material inside the applicator can be near
setpoint temperature. Wear protective clothing
to avoid severe burns.
2. Remove dirty filter (16) from manifold (1).

Figure 9 Inlet Filter
3. Apply a thin coating of high-temperature lubricant
to seals on the new filter (16) and install in the
manifold (1). Torque to 30 in.-lbs (3.4 N∙m),
using a 5/32 in. (4 mm) Allen wrench.
Filter Maintenance Guidelines
These recommendations are service level guidelines
- actual service levels required in your factory
will vary based on environmental and operating
conditions. High or low volume adhesive usage, as
well as adhesives that contain a powered release
agent or are otherwise dusty, will have an impact
on the frequency of filter maintenance. To establish
a preventative maintenance cycle tailored to your
environment, Graco recommends inspecting filters
every 4 weeks after installation and replacing when
necessary. Document replacement intervals and
use this as your preventative maintenance schedule
moving forward.
Environment Classification

Gun
manifold
filter
Solenoid
exhaust
filters

3A2805K

Clean

Moderate

Replace
Replace
filter
filter every every
months months

six

four

Dusty

Replace
filter
every
months

two

13

Troubleshooting

Troubleshooting

Problem

No adhesive or incorrect
amount of adhesive out of all
modules when triggered

Cause

Debris in manifold filter
Clogged hose
Failed solenoid valve
No signal to solenoid valve
Incorrect solenoid valve wiring
Incorrect signal to solenoid valve
Solenoid muffler plugged
No fluid pressure
Heater failure (cold gun)
No air to solenoid valve
Dirty or faulty triggering device

No adhesive or incorrect
amount of adhesive out of
one/some modules when
triggered

Solenoid valve connected
incorrectly
Clogged manifold passage
Debris in nozzle
Failed module in closed position
Debris in module filter

Adhesive out of one/some
modules when not triggered

14

Clogged manifold passage
Failed module in open position
Adhesive pressure too high

Solution

Replace manifold filter. See
Replace Inlet Filter, page 13.
Clean or replace hose.
Check for correct operation. Clean
or replace.
Check solenoid valve for correct
operation.
Check solenoid valve wiring.
Check if 24 VDC or 120 VAC.
Check and replace mufflers.
Check adhesive delivery system.
Check and replace
heater cartridges. See
Replace Heater Cartridge, page 20.
Check air supply.
Check, clean, or replace triggering
device.
Check solenoid valve air connections.
Clean or replace manifold.
Clean or replace nozzle.
Check for correct operation.
Clean or replace. See
Check Module, page 16.
Replace module. See
Replace Module, page 24.
Clean or replace manifold.
Clean or replace module. See
Replace Module, page 24.
Check and reduce fluid pressure.

3A2805K

Troubleshooting

Problem

Gun will not heat

Gun overheats

Gun under-heats

Adhesive leaking from gun

3A2805K

Cause

Solution

Heater failure

Check and replace
heater cartridge. See
Replace Heater Cartridge, page 20.
Loose cord set connection
Check connection.
RTD failure
Check and replace RTD. See
Check RTD, page 17.
Incorrect RTD for adhesive delivery Check delivery system RTD
system
requirement
Thermal cutoff failure
Check and replace
thermal cutoff. See
Replace Thermal Cutoff, page 20.
Wrong RTD type selected
Check RTD type settings on the
system. Change if necessary. See
Select RTD, page 11.
Heater failure
Check and replace
heater cartridge. See
Replace Heater Cartridge, page 20.
RTD failure
Check and replace RTD. See
Check RTD, page 17.
Incorrect RTD for adhesive delivery Check delivery system RTD
system
requirement.
Incorrect power to heater
Check and correct power.
Wrong RTD type selected
Check RTD type settings on the
system. Change if necessary. See
Select RTD, page 11.
Heater failure
Check and replace
heater cartridge. See
Replace Heater Cartridge, page 20
RTD failure
Check and replace RTD.
Incorrect RTD for adhesive delivery Check delivery system RTD
system
requirement.
Incorrect power to heater
Check and correct power.
Wrong RTD type selected
Check RTD type settings on the
system. Change if necessary. See
Select RTD, page 11.
Module o-ring failure
Check and replace o-ring. See
Replace Module, page 24.
Inlet fitting loose
Tighten fitting.
Manifold filter o-ring failure
Check and replace o-ring.
Nozzle loose
Tighten nozzle.
Module seal failure
Check and replace module. See
Check Module, page 16.

15

Troubleshooting

Problem

Adhesive out of all modules
when not triggered

Cause

Solution

Solenoid valve failure
Adhesive pressure too high
Solenoid valve connected
incorrectly
Module failure

Check and replace solenoid valve.
Check and reduce fluid pressure.
Check solenoid valve air connections.
Check and replace all modules. See
Check Module, page 16.

Check Module

Check Nozzle and Module

Check the module operation to verify if the module
has failed and needs to be replaced.
1. Insert a small Allen wrench into the top of the
module.
2. Press the solenoid valve override switch (S) to
manually trigger the gun.

Trigger the gun without the nozzle to determine if the
nozzle or module is clogged.
1. Disable gun assembly. See
Before Beginning Repair, page 19.
2. Use a 1/2 in. wrench to remove the nozzle.

Figure 10 Check Module
If the wrench moves up and down, then the module
is operating properly

Figure 11
3. Connect the power and solenoid cable.
4. Return the gun back into operation.
5. Trigger the gun.
a. If adhesive flows, clean the nozzle and
reinstall on the module.
b. If adhesive does not flow, the module is
clogged and needs to be replaced. See
Replace Module, page 24.

If the wrench does not move, then the module needs
to be replaced. See Replace Module, page 24.

16

3A2805K

Troubleshooting

Check Heater

Table 1 24W087, Pt 100 (385) RTD Cordset

Check the continuity of the heater to verify proper
resistance. If there is no continuity, the heater
may have failed and need to be replaced. See
Wiring Diagram, page 21, and parts illustrations.
1. Disable gun assembly. See
Before Beginning Repair, page 19.
2. Check resistance of the heater using a multimeter
between the pins of the cordset connector. See
connectors illustrations in cordset pin tables.
• If there is no continuity measure resistance of
the heater at the butt splice terminals (52b).
• If the resistance is outside the range listed
below replace the heater cartridge. See
Replace Heater Cartridge, page 20.
Cordset

Check

Gun Model

Pins

Resistance

Pin

Description

A
B
C
D
E

Thermal Cutoff
Ground
Heat RTD (White)
RTD (Red)

Table 2 24W088, Ni 120 RTD Cordset

Pin

Description

1
2
3
5
G

Thermal Cutoff
Heat RTD (White)
RTD (Red)
Ground

Values

24W087, A and C
Pt 100
(385) RTD
Cordset
24W088,
Ni 120
RTD
Cordset

1 and 2

24U021–24U0
26
24U027–24U032
All other
models
24U021–24U0
26
24U027–24U032
All other
models

260–280
ohms
130–140
ohms
260–280
ohms
130–140
ohms

Check RTD

Check the continuity of the RTD to verify proper
resistance. If there is no continuity, the RTD has
failed and needs to be replaced.
1. Disable gun assembly. See
Before Beginning Repair, page 19.
2. Check resistance of the RTD using a multimeter
between the pins of the cordset connector. See
connectors illustrations in cordset pin tables.
Cordset

Check Pins

Resistance
Values
At Room
Temperature
70–72°F
(21–22°C)

24W087, Pt D and E
100 (385)
RTD Cordset
24W088, Ni 3 and 5
120 RTD
Cordset

107-115
ohms
130-140
ohms

3. Replace the RTD if the resistance reading is
outside the range, or if there is no continuity. See
Replace RTD, page 20.

3A2805K

17

Troubleshooting

Check Thermal Cutoff

Thermal Cutoff

If working properly, the cutoff will trip at 450°F
(232°C) and resets at 370°F (187°C). If failure is
suspected, allow gun to cool and then check the
continuity of the thermal cutoff to verify it has not
failed. If there is no continuity, the cutoff has failed
and needs to be replaced.
1. Disable gun assembly. See
Before Beginning Repair, page 19.
2. Remove cover plate.
3. Check for continuity using a multimeter between
pin of cordset connector and the wires from the
thermal cutoff that connects to the heater lead.
Cordset

Check Pins

24W087, Pt 100 (385)
RTD Cordset

A

24W088, Ni 120 RTD
Cordset

1

18

WLD

3A2805K

Repair

Repair
Required Tools
• Phillips screw driver
• Flat blade screw driver
• 5/64 in (2 mm) and 5/32 in. (4 mm) Allen wrenches
• 1/2 in. and 7/16 in. wrenches
• Torque wrench
• Waste container
• High-temperature anaerobic thread sealant (110110)
• High-temperature lubricant (24T156)
• Anti-sieze (24T179)
• Crimp tool (24W086)
Before Beginning Repair

1. Turn off the melter system. See melter manual
for shutdown instructions.
2. Relieve pressure. See
Pressure Relief Procedure, page 12.
3. Disconnect the cordset from the heated hose.

4. Loosen the mounting screw and disconnect the
solenoid valve power connector (N) from the
solenoid valve (J).

Figure 13 Disconnect Solenoid Valve Power
Connector

Figure 12 Disconnect Cordset

3A2805K

19

Repair

Replace Heater Cartridge

1. Disable gun assembly.
2. Use a Phillips screwdriver to remove screws (15)
and manifold cover plate (52).
3. Remove the heater cartridges (3) from the
manifold (1).
Note

Note the placement of the heaters and
lead lengths.
Note

On guns that are not low profile, if the

heater cartridge does not easily pull out,
remove the other cover plate (18) and
press out with a small screwdriver.
4. Remove butt splices(52b) from heater wires (3),
thermal cutoff (52a), and cordset wire leads (17).
5. Recrimp new heater wires into new splices (52b).
See wiring diagram.
NOTICE
To prevent a short to ground and blowing a
MZLP fuse, ensure bare wires are covered
with fiberglass tape and sleeves (52c) are
centered over splices (52b).
6. Insert the new heater cartridges (3) into the
manifold (1), placing the heater with the shorter
leads closer to the wiring port.

2. Use a Phillips screws driver to remove the four
screws (15) and manifold cover plate (52).
3. Remove splices from heater wires (3) and
cordset wire leads (17).
4. Crimp wires. See Wiring Diagram, page 21.
NOTICE
To prevent a short to ground and blowing a
MZLP fuse, ensure bare wires are covered
with fiberglass tape and sleeves (52c) are
centered over splices (52b).
a. Slide sleeves (52c) over each pair of wires
before crimping.
b. Crimp butt splice (52b) on cordset heater
wires (17) and heater wires (3). Light pull on
splice to ensure it is crimped.
c. Crimp white wire to one thermal cutoff lead
(52a).
d. Crimp other thermal cutoff lead (52a) to one
heater wire(s) (3).
e. Crimp other heater wire(s) to black lead (17).
f. Wrap a short piece of fiberglass tape around
each splice (52b).
g. Center sleeves (52c) over each taped splice
(52b).
5. Gently press wires into the manifold. Install plate
(52) and screws (15).

Note

Do not apply thermal grease to the
heater cartridge.
7. Reinstall the manifold cover plate (52).
8. Reconnect the cordset (17) to the heated hose.
9. Reconnect the solenoid valve power connector
to the solenoid valve (9).
Replace RTD


F
E



The RTD is replaced by replacing the entire cordset.
See Replace Cordset, page 22, for instructions.



Replace Thermal Cutoff

1. Disable gun assembly.

20

D

WLE

3A2805K

Repair

Wiring Diagram
Thermal Cutoff
52b

17

52a

17

52b

3

52b

3

Note

Slim (24U021–24U026) and Low Profile Dual (24U026–24U032) applicators use one heater (3).

3A2805K

21

Repair

Replace Cordset

See Fig 14, page 24.
Note

1.
2.
3.
4.

22

There are two types of cordsets (17):
24W087 is for PT100 (385) RTD controlled
guns and 24W088 is for NI 120 Ohm
RTD controlled guns. Ensure you have
the correct cordset before replacing. See
Parts, page 26.
Disable gun assembly. See
Before Beginning Repair, page 19.
Use a Phillips screwdriver to remove the four
screws (15) and manifold cover plate (52).
Use a 2 mm Allen wrench to remove the set
screw (8) holding the cordset (17) on the manifold
(1).
Use a Phillips screwdriver to remove the ground
screw (15) and star washer (20) from the
manifold (1).

5. Remove the RTD (R) from the manifold (1).
Note

On guns that are not low profile, if the

RTD does not easily pull out, remove the
other cover plate (19) and press out with
a small screwdriver.
6. Disconnect thermal cutoff (52).
7. Remove the cordset (17) from the manifold (1).
8. Install the new cordset, RTD, and ground (17 in
the manifold (1). Recrimp thermal cutoff wires.
See Wiring Diagram, page 21, for connections.
Note

Ensure the cordset bushing is fully
inserted into the manifold.
9. Install set screw (8) against the cordset bushing
to secure the cordset (17) to the manifold (1).

3A2805K

Repair

10. Reinstall the ground lead onto the manifold (1).
Note

Ensure the star washer (20) is placed
below the ground ring terminal.
11. Insert the plug (P), RTD (R) and thermal cutoff
(52) into the manifold ports. See Fig 14.
Note

Do not apply grease on the RTD or
thermal cutoff.
12. Insert the heater cartridges (3) in the manifold (1).

Figure 14 Repair Parts

3A2805K

NOTICE
To prevent removing wire insulation or
disconnecting wires, do not pinch any wires
when inserting wire in the manifold. If wire
insulation is removed, the RTD or heaters
could short out and need to be replaced.

13. Reinstall the manifold cover plate (52).
14. Reconnect the cordset (17) to the heated hose.
15. Return to service.

See Slim and Low Profile GS35 subsections
of the Parts chapter ( Parts, page 26).
NOTE:

23

Repair

Replace Solenoid Valve

1. Disable gun assembly. See
Before Beginning Repair, page 19.
2. Remove solenoid valve fitting (102) and solenoid
valve (9) from tube (7).
3. Use a 1/2 in. and 7/16 in. wrench to tighten new
connector (102) to tube (7).

Figure 15 Replace Solenoid Valve
Replace Module

1. Disable gun assembly. See
Before Beginning Repair, page 19.

Material inside the applicator can be near
setpoint temperature. Wear protective clothing
to avoid severe burns.
2. Use a 5/32 in. (4 mm) Allen wrench to remove
the two mounting screws (22) and module (2)
from manifold (1).

24

NOTICE
Do not allow adhesive to enter the air ports,
to allow air to flow through valve. Adhesive in
the air ports will obstruct the flow of air and
damage the valve.

Figure 16 Remove Module From Manifold
3. Apply high temperature lubricant to o-rings in
module (2).
4. Apply anti-seize to two screw threads (22). Use
a 5/32 in. (4 mm) Allen wrench to install new
module (2) on manifold with two screws (22).
Torque to 28–32 in.-lbs (3.2–3.6 N•m).
5. Connect cordset (17) to the heated hose.
Replace Applicator

Material inside the applicator can be near setpoint
temperature. Wear protective clothing to avoid
severe burns.
1. Disable gun assembly. See
Before Beginning Repair, page 19.
2. Loosen the mounting bar clamp and remove the
applicator from the mounting bar.
3. Install new applicator. See Installation, page 9 .

3A2805K

Notes

Notes

3A2805K

25

Parts

Parts
Single GS35

1

2

26

Apply thread sealant to threads.
Apply a thin coating of lubricant to seals.

3
4

Apply anti-seize to first 1/2 in. of threads. Torque
to 28-32 in-lbs (3.2-3.6 N∙m).
See Wiring Diagram, page 21.

3A2805K

Parts

Table 3 Single GS35
Ref

Part

1

-----

2●

Quantity
24P073 24P074 24P246 24P299 24P300 24P307

Description
HOUSING, single

1

1

1

1

1

1

MODULE, sc, hotmelt
HEATER, 240 VAC, 200W, 1/2 dia. x 1.5
in.

1

2

1

1

2

1

2

2

2

2

2

2

1

1

3

24V789

6

100113

CONNECTOR, male

1

1

7

24R231

TUBE, applicator, hotmelt, open

1

1

8
9*

124736

SCREW, set, cup, M4x.7x4 mm, sst

1

1

24P239

VALVE, solenoid, 3w, sr, 24 VDC

1

24P240

VALVE, solenoid, 3w, sr, 110 VAC

10

24P276

INSULATOR, clamp, bar, housing

1

1

1

1

1

1

11

24P277

CLAMP, bar, housing

2

2

2

2

2

2

12

108050

WASHER, lock, spring

2

2

2

2

2

2

13

117030

2

2

2

2

2

2

14

24P615

SCREW, shcs M6 x 40
FITTING, adapter, JIC -6 (37° flare) x SAE
-6, mxm, cst

1

1

1

1

1

1

15

195874

9

9

9

9

9

9

16

24P275

1

1

1

1

1

1

17a

24W087

1

1

1

17b

24W088

SCREW, mach, phil pan hd
FILTER, cartridge, 80 mesh, hotmelt
(24P802 - 3 pack)
CORD SET, 240V, applicator, Pt 100 ohm
RTD
CORD SET, 240V, hotmelt, Ni 120 ohm
RTD

1

1

1

PLATE, cover, housing, hotmelt

1

1

1

1

1

1

---

18

1

1

1

1

1

1

1
1

1

20

157021

WASHER, lock, int

1

1

1

1

1

1

22●

104705

SCREW, cap, sch; #10–32 x 1/25 in.

2

2

2

2

2

2

29▲

16K931

1

1

1

1

1

1

34

24P547

1

1

1

1

1

1

35

24P548

LABEL, safety, warning
FITTING, elbow, JIC -6 (37° flare) x SAE
-6, mxm, cst
FITTING, elbow, 45°, JIC -6 (37° flare) x
SAE -6, mxm, cst

1

1

1

1

1

1

PLUG
KIT, THERMAL CUTOFF(includes
52a-52c)

1

1

1

1

1

1

1

1

1

1

1

1

PLATE, with thermal cutoff
CONNECTOR, splice, 14–16 AWG, heat
resistant

1

1

1

1

1

1

3

3

3

3

3

3

SLEEVE, red, 2 in. (50.88 mm) x 0.16 OD

3

3

3

3

3

3

---

36■
51

16Y799

52

24V790

52a

---

52b

---

52c

---

*
●

NOZZLE

See Solenoid Valve Kits, page 45.
Parts included in Module Repair Kit. See
Module Repair Kit, page 44.

3A2805K

■
▲

Purchase Separately. See
Nozzles (Single Orifice), page 45.
Replacement Warning labels, signs, tags, and cards are
available at no cost.

27

Parts

DUAL GS35

1

2

28

Apply thread sealant to threads.
Apply a thin coating of lubricant to seals.

3
4

Apply anti-seize to first 1/2 in. of threads. Torque
to 28-32 in-lbs (3.2-3.6 N∙m).
See Wiring Diagram, page 21.

3A2805K

Parts

Table 4 Dual GS35
Ref

Part

1

-----

2●

Description

24P075 24P076 24P247 24P301 24P302 24P308

HOUSING, dual

1

1

1

1

1

1

MODULE, sc, hotmelt
HEATER, 240 VAC, 200W, 1/2 dia. x
1.5 in.

2

2

2

2

2

2

2

2

2

2

2

2

1

1

3

24V789

6

100113

CONNECTOR, male

1

1

7

24R231

TUBE, applicator, hotmelt, open

1

1

8
9*

124736

SCREW, set, cup, M4 x .7 x 4 mm, sst

1

1

24P239

VALVE, solenoid, 3w, sr, 24 VDC

1

24P240

VALVE, solenoid, 3w, sr, 110 VAC

10

24P276

INSULATOR, clamp, bar, housing

1

1

1

1

1

1

11

24P277

CLAMP, bar, housing

2

2

2

2

2

2

12

108050

WASHER, lock, spring

2

2

2

2

2

2

13

117030

2

2

2

2

2

2

14

24P615

SCREW, shcs M6 x 40
FITTING, adapter, JIC -6 (37° flare) x
SAE -6, mxm, cst

1

1

1

1

1

1

15

195874

9

9

9

9

9

9

16

24P275

1

1

1

1

1

1

17a

24W087

1

1

1

17b

24W088

SCREW, mach, phil pan hd
FILTER, cartridge, 80 mesh, hotmelt
(24P802 - 3 pack)
CORD SET, 240V, applicator, Pt 100
ohm RTD
CORD SET, 240V, hotmelt, Ni 120 ohm
RTD

1

1

1

PLATE, cover, housing, hotmelt

1

1

1

1

1

1

---

18

1

1

1

1

1

1

1
1

1

20

157021

WASHER, lock, int

1

1

1

1

1

1

22●

104705

SCREW, cap, sch; #10–32 x 1/25 in.

4

4

4

4

4

4

29▲

16K931

1

1

1

1

1

1

34

24P547

1

1

1

1

1

1

35

24P548

LABEL, safety, warning
FITTING, elbow, JIC -6 (37° flare) x
SAE -6, mxm, cst
FITTING, elbow, 45°, JIC -6 (37° flare)
x SAE -6, mxm, cst

1

1

1

1

1

1

PLUG
KIT, THERMAL CUTOFF (includes
52a-52c)

1

1

1

1

1

1

1

1

1

1

1

1

PLATE, with thermal cutoff
CONNECTOR, splice, 14–16 AWG,
heat resistant
SLEEVE, red, 2 in. (50.88 mm) x 0.16
OD

1

1

1

1

1

1

3

3

3

3

3

3

3

3

3

3

3

3

---

36■
51

16Y799

52

24V790

52a

---

52b

---

52c

---

*
●

NOZZLE

See Solenoid Valve Kits, page 45.
Parts included in Module Repair Kit. See
Module Repair Kit, page 44.

3A2805K

■
▲

Purchase Separately. See
Nozzles (Single Orifice), page 45.
Replacement Warning labels, signs, tags, and cards are
available at no cost.

29

Parts

Quad GS35

24P077 Type I Shown

1

2

30

Apply thread sealant to threads.
Apply a thin coating of lubricant to seals.

3
4

Apply anti-seize to first 1/2 in. of threads. Torque
to 28-32 in-lbs (3.2-3.6 N∙m)).
See Wiring Diagram, page 21.

3A2805K

Parts

Table 5 Quad GS35 With 0.88 in. Spaced Manifold (Type I)
Ref

Part

1
2●
3
6
7
8
9*
10
11
12
13
14
15
16

----24V791
100113
24R231
124736
24P239
24P240
24P276
24P277
108050
117030
24P615
195874
24P275

17a

24W087

17b
18
20
22●
29▲
34

24W088
--157021
104705
16K931
24P547

35
36■
51
52
52a
52b

24P548
--16Y799
24V790
-----

52c

---

Description

HOUSING, 0.88 in.
MODULE
HEATER, 240 VAC, 200W, 1/2 dia x
2.75 in.
CONNECTOR, male
TUBE, applicator, hotmelt, open
SCREW, set, cup, M4 x.7x4 mm, sst
VALVE, solenoid, 3 way, sr, 24 VDC
VALVE, solenoid, 3 way, sr, 110 VAC
INSULATOR, clamp, bar, housing
CLAMP, bar, housing
WASHER, lock, spring
SCREW, shcs M6 x 40
FITTING, adapter, JIC -6 (37° flare) x
SAE -6, mxm, cst
SCREW, mach, phil pan hd
FILTER, cartridge, 80 mesh, hotmelt
(24P802 - 3 pack)
CORD SET, 240V, applicator, Pt 100
ohm RTD
CORD SET, 240V, hotmelt, Ni 120
ohm RTD
PLATE, cover, housing, hotmelt
WASHER, lock, int
SCREW, cap, sch; #10–32 x 1/25 in.
LABEL, safety, warning
FITTING, elbow, JIC -6 (37° flare) x
SAE -6, mxm, cst
FITTING, elbow, 45°, JIC -6 (37° flare)
x SAE -6, mxm, cst
NOZZLE
PLUG
KIT, THERMAL CUTOFF (includes
52a-52c)
PLATE, with thermal cutoff
CONNECTOR, splice, 14–16 AWG,
heat resistant
SLEEVE, red, 2 in. (50.88 mm) x 0.16
OD

* See Solenoid Valve Kits, page 45.
●

Parts included in Module Repair Kit. See
Module Repair Kit, page 44.

3A2805K

Quantity
24P077 24P078 24P250 24P303 24P304 24P309

■
▲

1
4
2
1
1
1
1

1
4
2
1
1
1

1
4
2
1

1
2
2
2
1
9
1

1
1
2
2
2
1
9
1

1
2
2
2
1
9
1

1

1

1

1
4
2
1
1
1
1

1
4
2
1
1
1

1
4
2

1
1

1
2
2
2
1
9
1

1
1
2
2
2
1
9
1

1
2
2
2
1
9
1

1
1
1
8
1
1

1
1
1
8
1
1

1
1
8
1
1

1
1
8
1
1

1
1
8
1
1

1
1
1
8
1
1

1

1

1

1

1

1

1
1
1
3

1
1
1
3

1
1
1
3

1
1
1
3

1
1
1
3

1
1
1
3

3

3

3

3

3

3

Purchase Separately. See
Nozzles (Single Orifice), page 45.
Replacement Warning labels, signs, tags, and cards
are available at no cost.

31

Parts

Table 6 Quad GS35 with 1.5 in. Spaced Manifold (Type II)
Ref

Part

----24V791
100113
24R231
124736
24P239
24P240
24P276
24P277
108050
117030
24P615
195874
24P275

1
2●
3
6
7
8
9*
10
11
12
13
14
15
16

17a 24W087
17b
18
20
22●
29▲
34

24W088
--157021
104705
16K931
24P547

35 24P548
36■
51 16Y799
52 24V790
--52a
--52b
52c

---

Description

HOUSING, 1.5 in.
MODULE
HEATER, 240 VAC, 200W, 1/2 dia x
2.75 in.
CONNECTOR, male
TUBE, applicator, hotmelt, open
SCREW, set, cup, m4 x.7x4 mm, sst
VALVE, solenoid, 3 way, sr, 24 VDC
VALVE, solenoid, 3 way, sr, 110
VAC
INSULATOR, clamp, bar, housing
CLAMP, bar, housing
WASHER, lock, spring
SCREW, shcs M6 x 40
FITTING, adapter, JIC -6 (37° flare)
x SAE -6, mxm, cst
SCREW, mach, phil pan hd
FILTER, cartridge, 80 mesh, hotmelt
(24P802 - 3 pack)
CORD SET, 240V, applicator, Pt 100
ohm RTD
CORD SET, 240V, hotmelt, Ni 120
ohm RTD
PLATE, cover, housing, hotmelt
WASHER, lock, int
SCREW, cap, sch; #10–32 x 1/25 in.
LABEL, safety, warning
FITTING, elbow, JIC -6 (37° flare) x
SAE -6, mxm, cst
FITTING, elbow, 45°, JIC -6 (37°
flare) x SAE -6, mxm, cst
NOZZLE
PLUG
KIT, THERMAL CUTOFF (includes
52a-52c)
PLATE, with thermal cutoff
CONNECTOR, splice, 14–16 AWG,
heat resistant
SLEEVE, red, 2 in. (50.88 mm) x
0.16 OD

* See Solenoid Valve Kits, page 45.
●

32

Parts included in Module Repair Kit. See
Module Repair Kit, page 44.

24P079

1
4
2
1
1
1
1

24P080

1
4
2
1
1
1

Quantity
24P254 24P305

1
4
2
1

1
2
2
2
1
9
1

1
1
2
2
2
1
9
1

1
2
2
2
1
9
1

1

1

1

1
4
2
1
1
1
1

24P306

1
4
2
1
1
1

24P310

1
4
2
1

1
2
2
2
1
9
1

1
1
2
2
2
1
9
1

1
2
2
2
1
9
1

1
1
1
8
1
1

1
1
1
8
1
1

1
1
8
1
1

1
1
8
1
1

1
1
8
1
1

1
1
1
8
1
1

1

1

1

1

1

1

1
1
1
3

1
1
1
3

1
1
1
3

1
1
1
3

1
1
1
3

1
1
1
3

3

3

3

3

3

3

■
▲

Purchase Separately. See
Nozzles (Single Orifice), page 45.
Replacement Warning labels, signs, tags, and cards
are available at no cost.

3A2805K

Parts

Notes

3A2805K

33

Parts

Slim GS35

1

2

34

Apply thread sealant to threads.
Apply a thin coating of lubricant to seals.

3
4

Apply anti-seize to first 1/2 in. of threads. Torque
to 28-32 in-lbs (3.2-3.6 N∙m)).
See Wiring Diagram, page 21.

3A2805K

Parts

Table 7 Slim GS35
Description

Part

2●

---

MODULE

1

1

1

1

1

1

3

24V793

HEATER, 240 VAC, 200W, 1/2 dia x 1.5 in.

1

1

1

1

1

1

6

100113

CONNECTOR, male

1

1

1

1

7

16P769

TUBE, applicator, hotmelt, open

1

1

1

1

8

124736

SCREW, set, cup, M4 x 0.7 x 4 mm, sst

1

1

1

1

9*

24P239

VALVE, solenoid, 3 way, sr, 24 VDC

1

24P240

VALVE, solenoid, 3 way, sr, 120 VAC

10

24P276

INSULATOR, clamp, bar, housing

11

24P277

CLAMP, bar, housing

2

2

2

2

2

2

12

108050

WASHER, lock, spring

2

2

2

2

2

2

13

117030

SCREW, shcs M6 x 40

2

2

2

2

2

2

14

24P615

1

1

1

1

1

1

15

195874

FITTING, adapter, JIC 06 x SAE 06, mm,
cs
SCREW, mach, phil pan hd

11

11

11

11

11

11

16

24P275

FILTER, gun, 80 mesh (3–pack: 24P802)

1

1

1

1

1

1

17a

24W087

1

1

1
1

1

1

1

---

HOUSING, slim

24U021
1

24U022

Quantity
24U023 24U024

Ref

1

1

1

1

1

24U026
1

1

1
1

1

24U025

1

1
1

1

1

1

18

---

CORD SET, 240V, applicator, Pt 100 ohm
RTD
CORD SET, 240V, hotmelt, Ni 120 ohm
RTD
PLATE, cover, side, slim

1

1

1

1

1

1

20

157021

WASHER, lock, int

1

1

1

1

1

1

22●

104705

SCREW, cap, sch

2

2

2

2

2

2

34

24P547

FITTING, elbow, JIC06 x SAE06, mm, cs

1

1

1

1

1

1

35

24P548

1

1

1

1

1

1

36■

---

FITTING, elbow, 45, JIC06 x SAE06, mm,
c
NOZZLE (not shown)

42

16W708

PLATE, cover, bottom, slim

1

1

1

1

1

1

51

16Y799

1

1

1

1

1

1

52

24V792

PLUG
KIT, THERMAL CUTOFF (includes
52a-52c)

1

1

1

1

1

1

PLATE, with thermal cutoff
CONNECTOR, splice, 14–16 AWG, heat
resistant

1

1

1

1

1

1

3

3

3

3

3

3

3

3

3

3

3

3

17b

24W088

52a

---

52b

---

52c

---

*
●

SLEEVE, red, 2 in. (50.88 mm) x 0.16 OD

See Solenoid Valve Kits, page 45.
Parts included in Module Repair Kit. See
Module Repair Kit, page 44.

3A2805K

■
▲

Purchase Separately. See
Nozzles (Single Orifice), page 45.
Replacement Warning labels, signs, tags, and cards are
available at no cost.

35

Parts

Low Profile Dual GS35

1

2

36

Apply thread sealant to threads.
Apply a thin coating of lubricant to seals.

3
4

Apply anti-seize to first 1/2 in. of threads. Torque
to 28-32 in-lbs (3.2-3.6 N∙m)).
See Wiring Diagram, page 21.

3A2805K

Parts

Table 8 Low Profile Dual GS35
Ref

Part

Description

10

----24V793
100113
16P769
124736
24P239
24P240
24P276

HOUSING, double
MODULE, sc
HEATER, 240 VAC, 200W, 1/2 dia x 1.5 in.
CONNECTOR, male
TUBE, applicator, hotmelt, open
SCREW, set, cup, M4 x 0.7 x 4 mm, sst
VALVE, solenoid, 3 way, sr, 24 VDC
VALVE, solenoid, 3 way, sr, 120 VAC
INSULATOR, clamp, bar, housing

11
12
13
14
15
16
17a

--108050
117029
24P615
195874
24P275
24W087

17b

24W088

18
20
21
22●
34
35
36■
42
44
45
46
47
48
49
50
51

--157021
103147
104705
24P547
24P548
--16W709
24U698
102598
100020
109570
100018
--100508
16Y799

BLOCK
WASHER, lock, spring
SCREW, shcs, M6 x 25
FITTING, adapter, JIC06 x SAE06, mm, cs
SCREW, mach, phil pan hd
FILTER, gun, 80 mesh (3–pack: 24P802)
CORD SET, 240V, applicator, Pt 100 ohm
RTD
CORD SET, 240V, hotmelt, Ni 120 ohm
RTD
PLATE, side
WASHER, lock, int
PLUG, pipe
SCREW, cap, sch
FITTING, elbow, JIC06 x SAE06, mm, cs
FITTING, elbow, 45, JIC06 x SAE06, mm, c
NOZZLE (not shown)
PLATE, cover, end
ROD, mtg, threaded
SCREW, cap, socket head
WASHER, lock
WASHER, plain
WASHER, lock, spring
NUT, 1/2-13 hex
SCREW, drive

1
2●
3
6
7
8
9*

3A2805K

PLUG

Quantity
24U027 24U028 24U029 24U030 24U031 24U032

1
2
1
1
1
1
1

1
2
1
1
1
1

1
2
1
1

1

1
1

1

1
2
2
1
5
1
1

1
2
2
1
5
1
1

1
2
2
1
5
1
1

1
2
1
1
1
1
1

1
2
1
1
1
1

1
2
1
1

1

1
1

1

1
2
2
1
5
1

1
2
2
1
5
1

1
2
2
1
5
1

1

1

1

1
1
3
4
1
1

1
1
3
4
1
1

1
1
3
4
1
1

1
1
3
4
1
1

1
1
3
4
1
1

1
1
3
4
1
1

1
1
1
1
2
2
2
4
1

1
1
1
1
2
2
2
4
1

1
1
1
1
2
2
2
4
1

1
1
1
1
2
2
2
4
1

1
1
1
1
2
2
2
4
1

1
1
1
1
2
2
2
4
1

37

Parts

Ref

52
52a
52b
52c

Part

24V794
-------

Description

KIT, THERMAL CUTOFF (includes
52a-52c)
PLATE, with thermal cutoff
CONNECTOR, splice, 14–16 AWG, heat
resistant
SLEEVE, red, 2 in. (50.88 mm) x 0.16 OD

* See Solenoid Valve Kits, page 45.
●


38

Quantity
24U027 24U028 24U029 24U030 24U031 24U032

Parts included in Module Repair Kit. See
Module Repair Kit, page 44.
Parts included in Bar Clamp Kit 24U698. See
Mounting Clamp Kits, page 45.

1
1
3
3

■
▲

1
1
3
3

1
1
3
3

1
1
3
3

1
1
3
3

1
1
3
3

Purchase Separately. See
Nozzles (Single Orifice), page 45.
Replacement Warning labels, signs, tags, and cards
are available at no cost.

3A2805K

Parts

Notes

3A2805K

39

Parts

Low Profile Quad GS35

1

2

40

Apply thread sealant to threads.
Apply a thin coating of lubricant to seals.

3
4

Apply anti-seize to first 1/2 in. of threads. Torque
to 28-32 in-lbs (3.2-3.6 N∙m)).
See Wiring Diagram, page 21.

3A2805K

Parts

Table 9 Low Profile Quad GS35
Ref

1
2●
3
6
7
8
9*
10
11
12
13
14
15

16
17a
17b
18
20
21
22●
34
35
36■
38▲
39
42
44
45
46
47
48
49
50
51

3A2805K

Part

Description

--HOUSING, quad
--MODULE, sc, invisipac
24V795 HEATER, 240 VAC, 200W, 1/2
dia x 1.5 in.
100113 CONNECTOR, male
16P769 TUBE, applicator, hotmelt, open
124736 SCREW, set, cup, M4x 0.7 x 4
mm, sst
126407 VALVE, solenoid, 3 way, sr, 24
VDC
126408 VALVE, solenoid, 3 way, sr, 120
VAC
16P848 INSULATOR, clamp, bar, housing
--BLOCK, mtg
108050 WASHER, lock, spring
117029 SCREW, shcs M6 x 25
126544 FITTING, adapter, JIC06 x
SAE06, mm, cs
195874 SCREW, mach, phil pan hd
24P275 FILTER, gun, 80 mesh (3-pack:
24P802)
24W087 CORD SET, 240V, applicator, Pt
100 ohm RTD
24W088 CORD SET, 240V, hotmelt, Ni
120 ohm RTD
--PLATE, side, quad
157021 WASHER, lock, int
103147 PLUG, pipe
104705 SCREW, cap, sch
126748 FITTING, elbow, JIC06 x SAE06,
mm, cs
126749 FITTING, elbow, 45, JIC06 x
SAE06, mm, c
--NOZZLE (not shown)
16K931 TAG, warning, turbo
103473 STRAP, tie, wire
16V721 PLATE, cover, applicator
24U698 ROD, mtg, threaded
102598 SCREW, cap, socket head
100020 WASHER, lock
109570 WASHER, plain
100018 WASHER, lock, spring
--NUT, 1/2-13 hex
100508 SCREW, drive
16Y799 PLUG

24U033

1
4
2
1
1
1

24U034

1
4
2
1
1
1

Quantity
24U035 24U036

1
4
2

1

1

1
4
2
1
1
1

24U037

1
4
2
1
1
1

24U038

1
4
2

1

1

1
1
2
2
1
6
1

1
1
1
2
2
1
6
1

1
1
2
2
1
6
1

1

1

1

1
1
2
2
1
6
1

1
1
1
2
2
1
6
1

1
1
2
2
1
6
1

1
1
1
3
8
1

1
1
1
3
8
1

1
1
3
8
1

1
1
3
8
1

1
1
3
8
1

1
1
1
3
8
1

1

1

1

1

1

1

1
1
1
1
1
1
2
2
2
2
1

1
1
1
1
1
1
2
2
2
2
1

1
1
1
1
1
1
2
2
2
2
1

1
1
1
1
1
1
2
2
2
2
1

1
1
1
1
1
1
2
2
2
2
1

1
1
1
1
1
1
2
2
2
2
1

41

Parts

Ref

52
52a
52b
52c

Part

Description

24V796 KIT, THERMAL CUTOFF
(includes 52a-52c)
- - - PLATE, with thermal cutoff
- - - CONNECTOR, splice, 14–16
AWG, heat resistant
- - - SLEEVE, red, 2 in. (50.88 mm)
x 0.16 OD

* See Solenoid Valve Kits, page 45.
●


42

Parts included in Module Repair Kit. See
Module Repair Kit, page 44.
Parts included in Bar Clamp Kit 24U698. See
Mounting Clamp Kits, page 45.

24U033

24U034

Quantity
24U035 24U036

24U037

24U038

1
1
3

1
1
3

1
1
3

1
1
3

1
1
3

1
1
3

3

3

3

3

3

3

■
▲

Purchase Separately. See
Nozzles (Single Orifice), page 45.
Replacement Warning labels, signs, tags, and cards
are available at no cost.

3A2805K

Parts

Solenoid Valve Kits
24P239, 24 VDC Solenoid Valve
24P240, 110 VAC Solenoid Valve

1
Ref

101

Apply thread sealant to threads.
Part

---

Description

VALVE, solenoid, 3w, sr,
24 VDC; 24P239 only
- - - VALVE, solenoid, 3w, sr,
120 VAC; 24P240 only
102 100113 CONNECTOR, male
103 24P900 BUSHING, 1/4 npt x 1/8
npt, brass

3A2805K

Qty

1
1

1
1

Ref

Part

Description

104 24P282 MUFFLER, 1/8 npt, pp
105 121140 FITTING, straight, 3/8
tubing OD x 1/4 npt
106 24R942 CONNECTOR, 24 VDC;
24P239 only
24R943 CONNECTOR, 120 VAC;
24P240 only

Qty

2
1
1
1

43

Kits and Accessories

Kits and Accessories
Module Replacement

Heater Cartridges

Heater cartridges for single, dual, and quad
manifolds with butt splices, tape, and tubing. See
Models, page 6 , for model numbers.

24P241

See manual 407050.
Part

Description

---MODULE
104705 SCREW, cap, sch; #10–32
x 1.25 in.
24R835 O-RING (10 pack)
24T179 LUBRICANT, anti-seize

Qty

1
2

Kit

24V789
24V791
24V793

2
1

Manifold

Single, Dual
Quad
Slim Single
24U021–24U026
Low Profile Dual
24U027–24U032
Low Profile Quad
24U033–24U038

Length

1.5 in. (38 mm)
2.75 in. (70 mm)
1.5 in. (38 mm)
1.5 in. (38 mm)

Module Filter Replacement Kit

24V795

Includes instructions for replacing the module filter.
See manual 332513.

Single Heater Cartridges with Ferrules

Kit

Quantity

24P801
24T045

Single
3–pack

Single heater cartridges are for custom manifolds
only.
Part

Requires Module Rebuild Tools Kit 24T206.
Includes instructions for rebuilding the module. See
manual 332513.
NOTE:

Kit

Quantity

24T046
24T047

Single
5–pack

Description

Qty

SEAL INSTALLATION TOOL
1
PISTON INSTALLATION TOOL 1

Cordsets include the RTD. Use crimp tool kit 24W086
(purchase separately).
24W087
24W088

44

RTD Type

Platinum 100 Ohm
Nickel 120 Ohm

24P825
24P826

24P828

Cordsets

Kit

24P824

24P827

Module Rebuild Tools Kit 24T206

-----

Length

Recommended
Manifold Width

Module Rebuild Kit

Part

1.5 in. (38 mm)

4 in.
(101.6 mm)
5 in.
(127 mm)
6 in.
(152.4 mm)
7 in.
(177.8 mm)
8 in.
(203.2 mm)

5-6 in.
(127-152.4 mm)
6-7 in.
(152.4-177.8 mm)
7-8 in.
(177.8-203.2 mm)
8-9 in.
(203.2-228.6 mm)
9-12 in.
(228.6-304.8 mm)

High Temperature Lubricant
24T156

Packet with 3–grams of high temperature lubricant.
For use on seals in InvisiPac guns.
Anti-Seize
24T179

Tube with 0.5 oz of anti-seize for use on module
mounting screws in InvisiPac guns.

3A2805K

Kits and Accessories

Mufflers

Mounting Clamp Kits

24P282

See Models, page 6 , for model numbers.

Includes two mufflers that can be used with solenoid
valve kits.
Blanking Plate Kit

Ref

10

24P810

Use to run two or three modules on a quad applicator
or one module on a dual applicator. See manual
407051.
Solenoid Valve and Fitting Kits

3–Way (air open - spring close) Solenoid Valves
Kit

Description

24P239
24P240

24 VDC
110 VAC

Inlet Filter
Kit

Qty

24P275
24P802

Single
3 Pack

Material Inlet Fittings
Single Kit

Description

24P615
24P548
24P547

Straight
45°
90°

For Series A and Series B Models.
Kit

Models

Description

24V790

See Models,
page 6
24U02124U026
24U02724U032
24U03324U038

Standard

24V794
24V796

3A2805K

11
12
13

Slim Single
Dual Low
Profile
Quad Low
Profile

Part

Description

24P276 INSULATOR, clamp, bar,
housing
- - - CLAMP, bar housing
108050 WASHER, lock, spring
117030 SCREW, shcs, M6 x 40

Qty

1
2
2
2

24U698 (Low Profile GS35, 24U027–24U038))
Ref

10
11
12
13
44
45
46
47
48
49

Part

Description

24P276 INSULATOR, clamp, bar,
housing
- - - BLOCK, mating, low
profile
108050 WASHER, lock, spring
117029 SCREW, shcs, M6 x 25
- - - ROD
- - - SCREW, cap, socket head
- - - WASHER, lock
- - - WASHER, plain
- - - WASHER, lock, spring
- - - NUT, 1/2–13

Qty

1
1

2
2
1
1
1
2
2
2

Nozzles (Single Orifice)
Single

Thermal Cutoff Replacement Kits

24V792

24P277 (Single, Dual, and Quad GS35)

24P636
24P637
24P638
24P639
24P640
24P641
24P642
24P643
24P644
24P645
24P646
24P647
24P648
24P649

5 Pack

24P794
24P795
24P796
24P797
24P798
24P799
24P800
24P803
24P804
24P805
24P806
24P807
24P808
24P809

Description

0.008 straight
0.010 straight
0.012 straight
0.016 straight
0.018 straight
0.020 straight
0.024 straight
0.008 90°
0.010 90°
0.012 90°
0.016 90°
0.018 90°
0.020 90°
0.024 90°

45

Dimensions

Dimensions
Single, Dual, and Quad GS35

0.72 in.
(18.16 mm)

5.01 in.
(127.25 mm)

9.3 in. (236.2 mm)

0.79 in.
(20.0 mm)

7.93 in. (201.42 mm)

24P075 Shown

3.63 in.
(92.2 mm)

4.24 in.
(107.7 mm)

1.14 in.
(28.96 mm)

1.00 in.
(25.4 mm)

3.07 in.
(77.98 mm)
3.94 in.
(100.1 mm)

24P077 Type I Shown

24P079 Type II Shown

0.5 in.
(12.7 mm)

0.31 in.
(7.9 mm)
0.625 in.
(15.8 mm)

A

A
C

Single
Dual
Quad - Type I
Quad - Type II

0.25 in.
(6.25 mm)

C
B

B
Applicator

A

A

A

B

C

in. (mm)

in. (mm)

in. (mm)

0.88 (22.4)
0.88 (22.4)
0.88 (22.4)

2.23 (56.6)
2.23 (56.6)
3.74 (95)
4.36 (111)

0.88 (22.4)
1.5 (38)

See Models, page 6 , for applicator model numbers.
46

3A2805K

Dimensions

Slim GS35

(24U021-24U026)
24U021 Shown

11.68 in.
(296.67 mm)

0.79 in.
(20.0 mm)
2.41 in.
(61.21 mm)

5.01 in.
(127.25 mm)

4.24 in.
(107.70 mm)
3.63 in.
(92.20 mm)

2.86 in.
(72.64 mm)
0.67 in.
(17.02 mm)

1.35 in. (34.29 mm)

3A2805K

1.0 in.
(25.4 mm)

3.16 in.
(80.26 mm)
4.04 in.
(102.62 mm)

47

Dimensions

Low Profile Double GS35

(24U027-24U033)
24U027 Shown

11.69 in.
(296.93 mm)

0.79 in.
(20.1 mm)

3.18 in.
(80.77 mm)

1.0 in.
(25.4 mm)
0.88 in.
(22.35 mm)
1.94 in.
(49.28 mm)

48

1.5 in.
(38.1 mm)

2.30 in.
(58.42 mm)

0.13 in.
(3.30 mm)
6.29 in.
(159.77 mm)

5.66 in.
(143.76 mm)

3A2805K

Dimensions

Low Profile Quad GS35

(24Ubob 033-24U038)
24U033 Shown

11.69 in.
(296.93 mm)

0.79 in.
(20.1 mm)

3.18 in.
(80.77 mm)

1.0 in.
(25.4 mm)

0.88 in.
0.88 in.
0.88 in.
(22.35 mm) (22.35 mm) (22.35 mm)
3.63 in.
(92.20 mm)
6.29 in.
(159.77 mm)

3A2805K

1.5 in.
(38.1 mm)

2.30 in.
(58.42 mm)

0.13 in.
(3.30 mm)
5.16 in.
(131.06 mm)

49

Technical Data

Technical Data
InvisiPac

™ GS35 Plug-Free Hot Melt Adhesive Applicator
US

Metric

> 3,500 cycles/minute
Speed
Heat up Time
< 10 minutes to 350°F at 240 VAC < 10 minutes to 176°C at 240 VAC
200-240V, 50–60 Hz, 400W
Electrical Service
Maximum Working Fluid Pressure
1500 psi
10.3 MPa, 103 bar
Maximum Air Pressure
80 psi
0.5 MPa, 5.5 bar
Minimum Air Pressure
40 psi
0.3 MPa, 2.7 bar
Maximum Operating Temperature
400°F
204°C
Ambient Storage Temperature
32-122°F
0-50°C
Range
Ambient Operating Temperature
32-122°F
0-50°C
Range
Solenoid Air Flow Rating
1.0 Cv
Wetted Parts
Aluminum, carbon steel, stainless steel, carbide, brass,
chemically resistant seals, chrome
Cordsets

24W087
24W088

Pt 100 (385) RTD
Ni 120 RTD

Solenoid Control Voltages

24P239
24P240

24 VDC
110 VAC

Noise

Sound pressure measured 6.5 ft
(2m) from gun at 80 psi (550kPa,
5.5 bar)

50

75.6 dB(A)

3A2805K

Notes

Notes

3A2805K

51

Graco Extended 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
eighteen months from the date of sale, repair or replace any part of the equipment determined by Graco to be
defective. This warranty applies only when the equipment is installed, operated and maintained in accordance
with Graco’s written recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction,
damage or wear caused by faulty installation, misapplication, abrasion, corrosion, inadequate or improper
maintenance, negligence, accident, tampering, or substitution of non-Graco component parts. Nor shall Graco
be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with structures,
accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation,
operation or maintenance of structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized
Graco distributor for verification of the claimed defect. If the claimed defect is verified, Graco will repair or replace
free of charge any defective parts. The equipment will be returned to the original purchaser transportation
prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will be
made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.

THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS
FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The
buyer agrees that no other remedy (including, but not limited to, incidental or consequential damages for lost
profits, lost sales, injury to person or property, or any other incidental or consequential loss) shall be available.
Any action for breach of warranty must be brought within two (2) years of the date of sale.

GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT,
MATERIALS OR COMPONENTS SOLD BUT NOT MANUFACTURED BY GRACO. These items sold, but not

manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to the warranty, if any, of
their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of
these warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco
supplying equipment hereunder, or the furnishing, performance, or use of any products or other goods sold
hereto, whether due to a breach of contract, breach of warranty, the negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The Parties acknowledge that they have required that the present document, as well as all documents, notices
and legal proceedings entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be
drawn up in English. Les parties reconnaissent avoir convenu que la rédaction du présente document sera en
Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite de ou
en rapport, directement ou indirectement, avec les procédures concernées.

Graco Information
For more information about InvisiPac, visit www.InvisiPac.com or email InvisiPac@graco.com.

To place an order, contact your Graco Distributor or call to identify the nearest distributor.
For technical assistance or customer service, call toll free: 1–800–458–2133.

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.
For patent information, see www.graco.com/patents.
Original Instructions. This manual contains English. MM 3A2805

Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 2012, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.

www.graco.com
Revised August 2014



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Keywords                        : MM 3A2805; 3A2805K; 3A2805EN; 3A2805EN-K; 24P073; 24P074; 24P246; 24P299; 24P300; 24P307; 24U021; 24U022; 24U022; 24U023; 24U024; 24U025; 24U026; 24P075; 24P076; 24P247; 24P301; 24P302; 24P308; 24U027; 24U028; 24U029; 24U030; 24U031; 24U032; 24P077; 24P078; 24P079; 24P080; 24P250; 24P254; 24P303; 24P304; 24P305; 24P306; 24P309; 24P310; 24U033; 24U034; 24U035; 24U036; 24U037; 24U038
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Title                           : 3A2805K - invisiPac GS35 Plug-Free Hot Melt Applicator, Instructions-Parts, English
Description                     : 3A2805K - invisiPac GS35 Plug-Free Hot Melt Applicator, Instructions-Parts, English
Rights                          : 2012
Creator                         : Emil Meindl
Subject                         : MM 3A2805, 3A2805K, 3A2805EN, 3A2805EN-K, 24P073, 24P074, 24P246, 24P299, 24P300, 24P307, 24U021, 24U022, 24U022, 24U023, 24U024, 24U025, 24U026, 24P075, 24P076, 24P247, 24P301, 24P302, 24P308, 24U027, 24U028, 24U029, 24U030, 24U031, 24U032, 24P077, 24P078, 24P079, 24P080, 24P250, 24P254, 24P303, 24P304, 24P305, 24P306, 24P309, 24P310, 24U033, 24U034, 24U035, 24U036, 24U037, 24U038
Page Count                      : 52
Author                          : Emil Meindl
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