Glas Craft Probler P2 User manual

Dispense Gun
INCLUDES:
23950-00
DISPENSE GUN
USER MANUAL
5845 WEST 82nd STREET
INDIANAPOLIS, INDIANA 46278 U.S.A.
Phone [phone]
Fax [phone]
E-Mail [email protected]
Web www.glascraft.com

CONTENTS
Introduction
ABOUT THIS MANUAL 1
Parts & Illustrations
CLEANING DRILL CHART 2
FLAT SPRAY NOZZLES CHART 2
SERVICE & REPAIR PARTS KITS 2
SERVICE & REPAIR PARTS KITS CONT. 3
23950-00 PROBLER P2SPRAY GUN 4
23950-00 PROBLER P2SPRAY GUN 5
Safety
SAFE HANDLING and USE OF
URETHANE FOAM EQUIPMENT 6
Installation
ON GLASCRAFT EQUIPMENT 10
Operation
PREOPERATION CHECK LIST 11
PROBLER P2GUN 11
OPERATING REQUIREMENTS 11
GUN OPERATION 11
INITIAL START-UP PROCEDURE 12
SPRAY TECHNIQUE 13
DAILY SHUT-DOWN PROCEDURE 14
DAILY SHUT-DOWN PROCEDURE
For experienced users 15
EXTENDED SHUT-DOWN PROCEDURE 15
DAILY START-UP 15
Service
PARTS REPLACEMENT PROCEDURE 16
ROUTINE CARE 16
PISTON THROW ADUSTMENT 16
INSTALLING P2 ON EQUIPMENT OTHER
THAN GLASCRAFT 17
Options & Accessories
19
Notes
20
Limited Warranty Policy
23
If You Have An Equipment Problem
24
For Your Reference
INSIDE BACK COVER

INTRODUCTION
About This Manual
Before operating, maintaining or servicing any
GlasCraft system, read and understand all of the
technical and safety literature provided with GlasCraft
products. If you do not have the proper or related
manuals and safety literature for your GlasCraft
system, contact your GlasCraft distributor or
GlasCraft, Inc.
In this GlasCraft technical and safety publication, the
following advisories will be provided where
appropriate:
NOTE
Is information about the procedure in progress.
CAUTION
Is imperative information about equipment protection.
WARNING
Is imperative information about personnel safety.
The information in this document is intended only to
indicate the components and their normal working
relationship typical use. Each assembly should be
directed by a GlasCraft distributor or made from the
GlasCraft assembly instructions provided.
This manual provides information for the assembly,
operation, maintenance and service of this GlasCraft
product as used in a typical configuration. While it lists
standard specifications and procedures, some
deviations may be found.
In order to provide our users with the most up-to-date
technology possible, we are constantly seeking to
improve products. If technological change occurs after
a product is on the market, we will implement that
technology in future production and, if practical, make
it available to current users as a retrofit, update or
supplement. If you find discrepancy between your unit
and the available documentation, contact your
GlasCraft distributor to resolve the difference.
GlasCraft, Inc. reserves the right to change or modify
this product as it deems necessary.
Careful study and continued use of this manual will
provide a better understanding of the equipment and
process, resulting in more efficient operation, longer
trouble-free service and faster, easier trouble-shooting.
1

PARTS & ILLUSTRATIONS
Cleaning Drill Chart
ROUND MIXING
CHAMBER MIXING CHAMBER NOZZLE CLEANING DRILL MIXING CHAMBER SIDE HOLE CLEANING DRILL
23960-00 14963-17 0.052 14963-21 0.029
23960-01 14963-11 0.057 14963-16 0.042
23960-02 14963-12 0.071 14963-17 0.052
23960-03 14963-15 0.086 14963-13 0.0595
23960-04 14963-19 0.094 14963-14 0.070
23960-05 14963-20 0.116 14963-15 0.086
DRILL PIN VISE 17672-00
Flat Spray Nozzle Tip Chart
TUNGSTEN CARBIDE
LPA2-147-1525 LPA2-147-2340 LPA2-147-3625 LPA2-147-5250 LPA2-147-7265
LPA2-147-1540 LPA2-147-2350 LPA2-147-3640 LPA2-147-5265 LPA2-147-7640
LPA2-147-1840 LPA2-147-2640 LPA2-147-3650 LPA2-147-6240 LPA2-147-7650
LPA2-147-1850 LPA2-147-2650 LPA2-147-4325 LPA2-147-6250
LPA2-147-2125 LPA2-147-3125 LPA2-147-4340 LPA2-147-6265
LPA2-147-2140 LPA2-147-3140 LPA2-147-4350 LPA2-147-7240
LPA2-147-2150 LPA2-147-3150 LPA2-147-5240 LPA2-147-7250
NOTE: Nozzle size stated by Orifice Size and Degree of Spray
Example: LPA2-147-1525 .015 Orifice 25 Degrees
Service & Repair Parts Kits
23975-00
STANDARD REPAIR KIT 23978-00 SIDE SEAL KIT 23979-00 HARDWARE KIT 00-03
7554-05 O-Ring 123973-00 SST Side Seal 2 15845-00 3/16” Ball Driver 1
7554-06 O-Ring 123974-07 O-Ring 2 15845-01 5/32” Ball Driver 1
7554-07 O-Ring 217672-00 Pin Vise 1
7554-09 O-Ring 223971-00 Screen Filter 2
7554-10 O-Ring 1 14693-17 Drill Bit 1
7554-16 O-Ring 3 14963-13 Drill Bit 1
7554-25 O-Ring 1
14963-14 Drill Bit 1
7554-26 O-Ring 1 14963-15 Drill Bit 1
7554-27 O-Ring 1 23974-12 O-Ring 1
7554-29 O-Ring 1
23974-07 O-Ring 2
7554-43 O-Ring 1
13867-08 O-Ring 2
13867-11 O-Ring 2
23974-07 O-Ring 2
23974-12 O-Ring 1
2

PARTS & ILLUSTRATIONS
Service & Repair Parts Kits Continued
23980-00
HARDWARE KIT 04-05 23981-00 PREMIUM REPAIR KIT
15845-00 3/16” Ball Driver 123974-05 O-Ring 1
15845-01 5/32” Ball Driver 123974-06 O-Ring 1
17672-00 Pin Vise 123974-07 O-Ring 4
23971-00 Screen Filter 223974-08 O-Ring 2
14693-19 Drill Bit 1 23974-09 O-Ring 2
14963-20 Drill Bit 123974-10 O-Ring 1
23974-12 O-Ring 123974-11 O-Ring 2
23974-07 O-Ring 223974-12 O-Ring 1
23974-16 O-Ring 3
23974-25 O-Ring 1
23974-26 O-Ring 1
23974-27 O-Ring 1
23974-29 O-Ring 1
23974-43 O-Ring 1
Jet Stream Nozzle
23983-01 23983-02
Pour Adapter
23984-00
Flat Spray Kit
23976-00
Non Atomized Tips, for use w/ 23976-00
23047-J1
23047-J2
23047-J3
23047-M1
23047-M2
23047-M3
23047-P1
23047-P2
23047-P3
•CHARACTER DESIGNATES MACHINED ANGLE
•NUMBER DESIGNATES ORIFICE
Contact GCI Tech Service for help in matching Tip W/ Application.
3

23950- PROBLER P2SPRAY GUN
7554-16
PG-19
23967-00
23952-00
17259-16F
23966-00
7554-29
23968-00
7554-27
23953-00
23965-00
23974-07
23954-00
23974-07
23969-00
18383-02
23971-00
23957-00
13867-11
13867-08
PG-13
23977-XX
23969-00
23962-00
REVISION A
23964-00
23961-00
2253-04
9869-19
8212-12F
7716-06C
9936-20F
23951-00
7554-26
7554-25
7554-43
7554-06
23974-12
7554-05
8301-12C
23963-00
23960-XX
PG-18
16832-00
7704-08C
8560-23
PG-15-01
8462-08
23955-00
23958-00
23973-00
23959-00
7554-07
7554-10
18383-00
9944-16C
23956-00
23970-00
7554-07
4

23950- PROBLER P2SPRAY GUN
PARTS LIST
SHT1
Part No. Description
23960-XX MIX CHAMBER
13867-08 O-RING
13867-11 O-RING
16832-00 AIR SWITCH ASSEMBLY
17259-16F SET SCREW
18383-00 BALL
18383-02 BALL
2253-04 LUBE FITTING
23951-00 AIR PISTON
23952-00 AIR PISTON
23953-00 CYLINDER SPACER
23954-00 AIR VALVE INSERT
23955-00 (ISO) SIDE BLOCK
23956-00 (POLY) SIDE BLOCK
23957-00 CHECK VALVE FILTER
23958-00 DELRIN SEAL
23959-00 SEAL HOUSING
23960-XX MIX CHAMBER
23961-00 FRONT TIP
23962-00 HANDLE
23963-00 GUN HEAD
23964-00 GUARD
23965-00 TRIGGER PISTON
23966-00 REAR CAP
23967-00 PLUG
23968-00 RETAINING RING
23969-00 SPRING
23970-00 SPRING
23971-00 FILTER SCREEN
23973-00 S.S.T SIDE SEAL
23974-07 O-RING
23974-12 O-RING
23977-XX MIX CHAMBER INSERT
7554-05 O-RING
7554-06 O-RING
7554-07 O-RING
7554-10 O-RING
7554-16 O-RING
7554-25 O-RING
7554-26 O-RING
7554-27 O-RING
7554-29 O-RING
7554-43 O-RING
7704-08C SET SCREW
7716-06C SET SCREW
8212-12F SHOULDER SCREW
8301-12C MACHINE SCREW
8462-08 PIPE FITTING
8560-23 CONNECTOR FITTING
9869-19 SHOULDER SCREW
9936-20F SET SCREW
9944-16C SHOULDER SCREW
PG-13 CONNECTOR FITTING
PG-15-01 2-WAY BALL VALVE
PG-18 TRIGGER
PG-19 SPRING
5

SAFETY
Safe Handling And Use Of Urethane
Foam Equipment
Introduction
Any tool, if used improperly, can be dangerous. Safety
is ultimately the responsibility of those using the tool.
In like manner, safe operation of polyester processes
is the responsibility of those who use such processes
and those who operate the equipment. This manual
outlines procedures to be followed in conducting
polyester operations safely.
All personnel involved in dispensing operations should
read and understand this manual. It is most important
that equipment operators, maintenance, and
supervisory personnel understand the requirements for
safe operation.
This manual cannot answer every circumstance; each
user should examine his own operation, develop his
own safety program and be assured that his
equipment operators follow correct procedures.
GlasCraft hopes that this manual is helpful to the user
and recommends that the precautions in this manual
be included in any such program.
Urethane foam systems are comprised of several
different chemical compounds, some of which may be
hazardous if improperly used.
CAUTION
Particular caution must be taken with respect to the
vapors released during the use of urethane foam
systems.
Isocyanate compounds are used in urethane foaming
operations. The medical history of persons who may
be exposed to such isocyanates should be examined.
It is recommended that individuals with a history of
chronic respiratory ailments should avoid exposure to
all isocyanates.
In addition to the manual, GlasCraft recommends that
the user consult the regulations established under the
Occupational Safety & Health Act (OSHA), particularly
the following sections:
•1910.94 Pertaining to ventilation.
•1910.106 Pertaining to flammable liquids.
•1910.107 Pertaining to spray finishing
operations, particularly Paragraph (m)
Organic Peroxides and Dual Component
Coatings. Local codes and authorities also
have standards to be followed in the operation
of your spraying equipment. Chemical
manufacturer's recommendations should be
obtained and considered. Your insurance
carrier will be helpful in answering questions
that arise in your development of safe
procedures.
Personnel Safety Equipment
GlasCraft recommends the following Personal Safety
Equipment for conducting safe operations of the
Polyester Systems:
EYE
PROTECTION
HEARING
PROTECTION BREATHING
PROTECTION
GlasCraft recommends that the user consult the state
and local regulations established for all Safety
equipment listed.
Operating Safely
In operating urethane foam equipment safely, user
should make every effort to:
1. Handle chemicals safely.
2. Provide adequate ventilation.
3. Provide adequate safety equipment (gloves,
respirators, safety glasses, protective clothing,
etc.) for operators and all others working in
areas where they may be exposed to the
chemicals or their vapors.
4. Avoid operating equipment which has given
any indication of malfunction.
5. Become fully acquainted with the equipment
and chemicals used.
Handling Chemicals Safely
Storage of polyisocyanates, diamines, and organic
solvents should be isolated and restricted to specially
constructed storage rooms. Store chemicals in original
containers and according to manufacturer's
recommendations listed on the container. Maximum
ambient temperatures to which such chemicals should
be exposed are specified by the manufacturer and
MUST NOT be exceeded either in the storage area or
in the spraying or pouring area.
To avoid moisture contamination, do not open
containers until ready for use. After use, the remaining
6

material should be re-sealed in the original container
and stored in areas away from moisture.
During clean-up of spilled isocyanate component,
respirators, gloves and eye protection must be worn.
Isocyanates which have been spilled can be controlled
by covering them with dry sawdust and/or other
absorbent, inert materials. Care should be taken to
avoid skin contact. The absorbent material and the
absorbed isocyanate should be collected promptly,
placed in an open-top container, and treated with
dilute solutions of ammoniom hydroxide and/or
alcohol. While being treated in this manner, the
material should be in an adequately ventilated area.
Clothing on which any material has been spilled
should be removed immediately, and cleaned before
being worn again.
Clean-Up Solvents
WARNING
A hazardous situation may be present in your
pressurized fluid system!
Halogenated Hydrocarbon Solvents can cause an
explosion when used with aluminum or galvanized
components in a closed (pressurized) fluid system
(pumps, heaters, filters, valves, spray guns, tanks,
etc.).
The explosion could cause serious injury, death and/or
substantial property damage.
Cleaning agents, coatings, paints, etc. may contain
Halogenated Hydrocarbon Solvents.
Some GlasCraft spray equipment includes aluminum
or galvanized components and will be affected by
Halogenated Hydrocarbon Solvents.
There are three key elements to the Halogenated
Hydrocarbon (HHC) solvent hazard.
1. The presence of HHC solvents. 1,1,1-
Trichloroethane and Methylene Chloride are the
most common of these solvents. However, other
HHC solvents are suspect if used; either as part of
paint or adhesives formulation, or for clean-up or
flushing.
2. Aluminum or Galvanized Parts. Most handling
equipment contains these elements. In contact
with these metals, HHC solvents could generate a
corrosive reaction of a catalytic nature.
3. Equipment capable of withstanding pressure.
When HHC solvents contact aluminum or
galvanized parts inside a closed container, such
as a pump, spray gun, or fluid handling system,
the chemical reaction can, over time, result in a
build-up of heat and pressure, which can reach
explosive proportions.
When all three elements are present, the result can be
an extremely violent explosion. The reaction can be
sustained with very little aluminum or galvanized
metal: any amount of aluminum is too much.
The reaction is unpredictable. Prior use of an HHC
solvent without incident (corrosion or explosion) does
NOT mean that such use is safe. These solvents can
be dangerous alone (as a clean-up or flushing agent)
or when used as a component of a coating material.
There is no known inhibitor that is effective under all
circumstances. Furthermore, the mixing of HHC
solvents with other materials or solvents, such as
MEK, alcohol, and toluene, may render the inhibitors
ineffective.
The use of reclaimed solvents is particularly
hazardous. Reclaimers may not add any inhibitors, or
may add incorrect amounts of inhibitors, or may add
improper types of inhibitors. Also, the possible
presence of water in reclaimed solvents could feed the
reaction.
Anodized or other oxide coatings cannot be relied
upon to prevent the explosive reaction. Such coatings
can be worn, cracked, scratched, or too thin to prevent
contact. There is no known way to make oxide
coatings or to employ aluminum alloys, which will
safely prevent the chemical reaction under all
circumstances.
Several solvent suppliers have recently begun
promoting HHC solvents for use in coating systems.
The increasing use of HHC solvents is increasing the
risk. Because of their exemption from many State
Implementation Plans as Volatile Organic Compounds
(VOC's), their low flammability hazard, and their not
being classified as toxic or carcinogenic substances,
HHC solvents are very desirable in many respects.
7

WARNING
If you are now using Halogenated Hydrocarbon
solvents in pressurized fluid systems having aluminum
or galvanized wetted parts,
IMMEDIATELY TAKE THE FOLLOWING STEPS:
•Empty system, shut-off, completely depressurize
in accordance with equipment service instructions.
•Remove equipment from service, disassemble in
accordance with equipment servicing instructions.
•Inspect all parts for corrosion and/or wear.
Replace any damaged parts.
•Thoroughly clean all parts of the equipment with a
non-halogenated solvent and reassemble in
accordance with equipment servicing instructions.
•Flush equipment with non-halogenated solvent.
•Do NOT reuse equipment with HHC solvents or
with materials containing such solvents.
•Material suppliers and/or container labels should
be consulted to ensure that the solvents used are
compatible with your equipment.
NOTE
GlasCraft is aware of NO stabilizers available to
prevent Halogenated Hydrocarbon solvents from
reaction under all conditions with aluminum
components in a closed fluid system.
TAKE IMMEDIATE ACTION...
Halogenated Hydrocarbon solvents are dangerous
when used with aluminum components in a closed
fluid system.
Consult your material supplier to determine whether
your solvent or coating contains Halogenated
Hydrocarbon Solvents.
GlasCraft recommends that you contact your solvent
supplier regarding the best non-flammable clean-up
solvent with the heat toxicity for your application.
If, however, you find it necessary to use flammable
solvents, they must be kept in approved, electrically
grounded containers.
Bulk solvent should be stored in a well-ventilated,
separate building, 50 feet away from your main plant.
You should allow only enough solvent for one day's
use in your laminating area.
"NO SMOKING" signs must be posted and observed
in all areas of storage or where solvents and other
flammable materials are used.
Adequate ventilation (as covered in OSHA Section
1910.94 and NFPA No. 91) is important wherever
solvents are stored or used, to minimize, confine and
exhaust the solvent vapors.
Solvents should be handled in accordance with OSHA
Section 1910.106 and 1910.107.
Toxicity of Chemicals
GlasCraft recommends that you consult OSHA
Sections 1910.94, 1910.106, 1910.107 and NFPA No.
33, Chapter 14, and NFPA No. 91.
Contact your chemical supplier(s) and determine the
toxicity of the various chemicals used, as well as the
best methods to prevent injury, irritation and danger to
personnel.
Also determine the best methods of first aid treatment
for each chemical used in your plan
First Aid
If chemicals containing isocyanates are splashed on
the skin, they can produce ill effects. Steps to
counteract such effects should be started immediately.
Apply Tincture of Green Soap, full strength, to the
contaminated area. If Tincture of Green Soap is not
immediately available, wash the exposed area
repeatedly with soap and water. Soap and water is not
as desirable as using Tincture of Green Soap because
many isocyanate components are not easily dissolved
in water. In addition, soap and water does not form a
barrier to the isocyanates.
After approximately two to four minutes, wash off the
Tincture of Green Soap with water. If there is still an
indication of isocyanate present, repeat the
application. If the isocyanate contamination is on the
facial area, care must be taken to avoid getting the
Tincture of Green Soap in the eyes.
If the person develops breathing difficulties, oxygen
should be administered. Quite often the exposed
person will experience residual effects such as
coughing spells. CONTACT PHYSICIAN
IMMEDIATELY.
WARNING
Contact a doctor immediately in the event of an injury
and give him the information you have collected. If
your information includes first aid instructions,
administer first aid immediately while you are
contacting the doctor.
If a person accidentally swallows isocyanates, large
amounts of water should be swallowed immediately.
Vomiting should then be induced by patient sticking his
finger down his throat, or by swallowing large
quantities of warm salt water or warm soapy water.
8

After vomiting, more water should be taken to dilute
isocyanate further. CONTACT PHYSICIAN
IMMEDIATELY.
Ventilation
WARNING
Hazardous concentrations of some chemical vapors
exist before they can be smelled. Chemical component
suppliers should be contacted to determine at what
concentrations the vapors of the chemicals they supply
become dangerous, and the procedures and
equipment needed to detect such dangerous
concentrations. Such equipment should be obtained.
Adequate ventilation must be provided in any area
where foam chemicals are sprayed or poured, and
wherever the material containers are opened.
In industrial applications, foaming operations should
be restricted to specific areas, and proper ventilation
should be provided in these areas to prevent chemical
vapors from spreading. Spray foaming operations
MUST be restricted to a spray booth where a minimum
exhaust of 100 feet per minute at the face of the booth
is provided. Special care should be taken to prevent
unsuspecting personnel both inside and outside of the
plant from being exposed to chemical vapors. The
chemical vapors should be exhausted to atmosphere
in such a manner and at a sufficiently low
concentration that personnel outside the plant are not
exposed to dangerous concentrations of chemical
vapors. Refer to OSHA Standards, sub-part G,
1910.107 and particularly sub-section (m) for Federal
standards. State and local authorities may have
applicable statutes or regulations concerning
ventilation.
In contractor applications (for example, at a
construction site, inside building or other enclosed
space), the forced ventilation normally provided is
likely to be inadequate. These applications, therefore,
usually REQUIRE the use of forced, fresh air
respirators for all persons in the areas where foaming
operations are conducted or where the chemical
vapors are likely to spread.
In industrial and contractor applications, it is advisable
to run frequent tests to determine the exact
concentration of isocyanate vapor in the air. Industrial
equipment is available for making such
determinations. Your chemical supplier can
recommend such equipment and procedures.
Proper Safety Equipment
All persons spraying or working is areas where forced
air ventilation is not adequate to remove isocyanate
vapors from the air MUST use an approved (U.S.
Bureau of Mines) fresh air supplied respirator.
Respirators should be regularly inspected, cleaned
and disinfected according to good practices. Records
must be kept of the inspections. The user MUST have
a medical clearance indicating that he can safely use a
respirator.
Respirators must fit securely; beards prevent a tight
seal around the face. Eye glasses have to be given
special attention and contact lenses are prohibited.
Safety goggles, gloves and other protective devices
are suggested for operators of foaming equipment.
Refer to OSHA Standards, sub-part 1, 1910.132,
1910.133 and 1910.134 for Federal standards.
IF YOU HAVE ANY QUESTIONS REGARDING THE
ABOVE PRECAUTIONS OR ANY SERVICE OR
OPERATION PROCEDURES, CALL YOUR
GLASCRAFT DISTRIBUTOR OR GLASCRAFT, INC.
NOTICE
All statements, information and data given herein are
believed to be accurate and reliable but are presented
without guaranty, warranty or responsibility of any kind
expressed or implied. The user should not assume
that all safety measures are indicated or that other
measures are not required.
5845 WEST 82nd STREET, SUITE 102
INDIANAPOLIS, INDIANA 46278 U.S.A.
PHONE [phone] FAX [phone]
9

INSTALLATION
On GlasCraft Equipment
All GCI OEM fittings are as follows:
A SIDE - # 6 JIC Hoses – Female Swivel Fitting
System and Gun – Male Fitting
B SIDE - # 6 SAE Hoses – Female Swivel Fitting
System and Gun – Male Fitting
Air Hose is ¼” NPS
JIC and SAE Fittings DO NOT require the use of
Teflon tape.
Once Fittings are attached and tight, go to Start-Up
Instructions.
ISOCYANATE
POLYOL
AIR
10

OPERATION
NOTE
Refer to specific system user manual for complete
system installation.
Preoperation Checklist
Check that all fittings are securely tight
Air Regulator turned to OFF position.
WARNING
Do not place any part of the body in the path of the
material spray.
Do not point the gun at or near other personnel.
Do not look into the Mixing Chamber orifice at any
time.
Because of the hazardous materials used in this
equipment, it is recommended that the operator use an
air mask, goggles, protective clothing, and other safety
equipment as prescribed by current regulations,
recommendations of the chemical suppliers, and the
laws in the area where the equipment is being used.
Probler P2Gun
The Probler P2Gun is used to spray, or pour two-
component, low viscosity polyurethane foam materials
at outputs up to 60 pounds per minute. The Gun
features an air-assisted full-finger trigger and a
patented solvent-free automatic air-purge cleaning
system.
Operating Requirements
•8 - 10 CFM at 90 -110 PSI
•MAXIMUM Static Fluid Pressure - 3200 PSI
WARNING
The GlasCraft Probler P2Gun is designed and
manufactured to operate at a maximum static fluid
pressure not to exceed 3200 psi. When attached to a
GlasCraft proportioning system, this pressure will not
be exceeded. However, if the GlasCraft Probler P2
Gun is installed on any other manufacturer's self-
designed equipment, great care must be taken to
ensure that the maximum static fluid pressure not be
exceeded.
Gun
The Trigger actuates a small valve in the Gun Handle
that controls the flow of air into the Piston Assembly.
When the Trigger is pulled, air flows through the valve
to the front of the Piston. Air pressures force the
Piston towards the rear of the Gun, simultaneously
closing off the Purge Air and moving the Mixing
Chamber to a position where the Mixing Chamber
orifices are aligned with the orifices in both, the Side
Block Seal and Check Valve assemblies.
NOTE
The proper alignment of the orifices is determined by
the setting of the Set Screw, P/N 17259-16F, located
at the rear of the Piston Assembly. This Set Screw
determines the length of travel of the Air Piston and
has been preset at the factory and should not require
adjustment. (SEE MAINTENANCE SECTION)
The two fluids (isocyanate and polyol) then flow thru
the Material Shut-Off Valves, Seal, and Check Valve
assemblies and into the Mixing Chamber. The two
fluids impinge against one another and exit the Mixing
Chamber in a swirling, conical spray pattern.
When the Trigger is released, the Mixing Chamber
returns to its original position and purge air flows into
the Mixing Chamber Housing, P/N 23963-00. The
Front Tip O-Ring, P/N 23974-00 keeps Air Purge
inside the Gun Head, P/N 23963-00, forcing all of the
air through the orifices in the mixing chamber, for a
complete, total and constant purge.
This purge-air continues to flow thru the Mixing
Chamber until the Air Switch, P/N 16832-00 is pulled
up to shut-off all air to the Gun; or until the Trigger is
pulled again.
NOTE
If the Gun is being used for short periods of spraying,
GlasCraft recommends that the purge air be left ON.
The material Shut-Off Valves, P/N PG-15-01 can be
left in the OPEN position during these periods of time.
11

WARNING
If purge air is to be turned OFF, BOTH MATERIAL
SHUT-OFF VALVES, P/N PG-15-01, MUST BE
TURNED TO THEIR "OFF" POSITION BEFORE
TURNING "OFF" THE PURGE AIR !
Failure to follow this procedure will possibly result in
the Gun Head becoming encased with mixed product.
For proper purging following use, the Air Switch must
be left OPEN for at least 15 SECONDS after the
Trigger has been released.
The flow of material into the Mixing Chamber is
controlled by the ON or OFF position of the two
material Shut-Off Valves.
NOTE
Both Material Shut-Off Valves must be FULLY OPEN
during dispensing and must be FULLY CLOSED
during service or extended shut-down periods.
WARNING
BOTH MATERIAL SHUT-OFF VALVES, P/N PG-15-
01, MUST BE TURNED TO THEIR "OFF" POSITION
BEFORE REMOVING SCREWS, P/N 9944-16C!!
Failure to follow this procedure will possibly result in
the Gun Head becoming encased with mixed product.
Initial Start-Up Procedure
With all material and air lines connected and power
cable attached, the system is now ready for start-up.
1. Remove the Side Blocks, P/N's 23955-00 and
23956-00, on the front housing of the Gun, by
removing Screws, P/N 9944-16C.
2. Place separate clean containers under each
individual Side Block. Open manual Material
Valves (black arrow forward, see Fig. 4 & 5) on
each Side Block simultaneously to allow trapped
air to escape the Hose and material to flow into
the containers until all air is purged from the
material system. (See Fig. 3)
Fig. 3
3. Close manual Material Valves simultaneously.
Material pressures gauges on each heater should
now register approximately equal pressure. If one
side registers considerably more pressure than the
other side, go to the high pressure side and bleed
off some pressure by slightly opening the manual
Material Valve on the Side Block over the
container. Bleed pressure until both sides are
approximately the same pressure.
4. Dispose of waste material properly and in
accordance with chemical suppliers, instructions
and local, state and federal regulations.
NOTE
Before re-assembling Side Blocks, lubrication can be
applied by dabbing a white lithium grease into holes
inside of Gun Front Housing and wiping grease over
Side Block Seals. Grease will purge itself when air
valve is turned on at Gun and Gun is triggered.
5. Clean and lubricate Side Blocks and Seals
thoroughly and reassemble onto Gun. Make
certain that Side Block Screws are tightened
securely.
6. Turn Purge Air and Material Valves ON at Gun.
(See Fig. 4)
12

ON
Fig. 4
7. The system is now ready for operation.
NOTE
Remember to dispense one to two gallons of material
to clear the system of grease and plasticizer that was
used during factory testing.
WARNING
Do not place any part of the body in the path of the
material spray.
Do not point the gun at or near other personnel.
Do not look into the Mixing Chamber orifice at any
time.
Because of the hazardous materials used in this
equipment, it is recommended that the operator use an
air mask, goggles, protective clothing, and other safety
equipment as prescribed by current regulations,
recommendations of the chemical suppliers, and the
laws in the area where the equipment is being used.
CAUTION
The Polyol will expand in the Hose if any normal
operating pressures are bled off whenever the material
is above approximately 75 degrees F. Hot Polyol
hoses should never be bled, by any method, to zero
pressure for two reasons.
1. The seals in the Gun rely on high pressure to
make their seal. The high pressure cannot be
maintained if the pumps are attempting to apply
this pressure through a hose full of expanded
froth; therefore, the Gun seal may leak.
2. Re-starting immediately after hot Polyol has
expanded in the system may result in spraying
substantial amounts of "bad" foam. This will
continue until the expanded Polyol in the primary
Heater and the Hose has been completely purged.
Spray Technique
Always operate safely - follow safety procedures
outlined.
To achieve the optimum spray pattern for each
application, the appropriate Mixing Chambers are
available in six round and six flat spray sizes.
Hardened Mixing Chambers are also available (see
Mixing Chamber Chart).
The standard Mixing Chamber supplied with your Gun
will be adequate for all but the smallest and largest
applications.
Foam rise and cure times will vary according to the
material and substrate temperature. Higher material
or substrate temperature will increase rise and cure
times; lower material or substrate temperatures will
decrease rise and cure times. Consult your chemical
manufacturer's data specification sheets for their
recommended spray temperatures. Under most
circumstances, both components will be used at
identical temperatures.
Higher pressures and temperatures may be used to
increase material break-up, improve mixing and speed
rise times. With hose lengths over 50 ft., or when
material viscosities are high, higher material pump
pressures may be necessary.
The Gun Air Switch assembly MUST BE OPENED
(down position) prior to spraying to provide air for
trigger operation and purge air when the Trigger is
released.
When spraying, the Gun Trigger may be depressed
continuously, or triggered at the end of each stroke. A
smooth, even layer is best achieved by moving the
13

Gun back and forth in a slow, even motion,
overlapping the previous pass about 50 to 75 percent.
DO NOT SPRAY OVER RISING FOAM! The ideal
gun-to-surface distance is about 18 to 24 inches. Be
sure to point the Gun directly at the surface to be
sprayed. Spraying at an angle to the surface will
cause the foam to be rough and will generate
overspray.
Daily Shut-Down Procedure
WARNING
Before attempting to perform any maintenance on this
Gun,Relieve All Fluid and Air Pressures!
• To relieve fluid and air pressures:
• Turn OFF all air supplies at System except Gun
Trigger Air.
• Trigger Gun until all fluid pressures have been
relieved.
• Turn OFF Gun Trigger Air at System.
• Trigger Gun until all Trigger Air Pressure has been
relieved.
Perform Gun maintenance as follows:
1. Check for leaking Seals, P/N 23973-00:
•Turn OFF Gun incoming air by closing Gun Air
Switch.
•Wait approximately 10 - 20 seconds, then turn
ON incoming air by opening Gun Air Switch.
•Repeat two or three times.
•If any material has been purged from the Gun,
the Seals, P/N 23973-00 are leaking, or O-
Ring, P/N 23974-07
•Correct leaks by replacing seals or O-Rings
and re-checking.
2. Check for leaking Material Valve, P/N PG-15-01:
•Turn OFF both Material Valves.
•Trigger Gun several times.
•Turn OFF Gun incoming air by closing Gun Air
Switch.
•Trigger Gun several times.
•If additional material is purged, the Material
Valves are leaking.
•Correct leaks by taking off Black Knobs and
turning packing 1/8" to 1/4 turns at a time until
leak has stopped. Re-check.
3. Check Side Blocks
•Turn OFF the Air Switch on Gun.
WARNING
Before removing Side Blocks make certain that both
Gun Material Valves are in the fully OFF positions!
Refer to Figures 4 and 5.
If Material Valves are on when Side Blocks are
removed the Gun will quickly become encased in
urethane!
WARNING
Point Gun Side Blocks down, away from all personnel.
Existing fluid pressures could cause material to exit
the Side Blocks with considerable force.
•Take off Side Blocks by removing Screws, P/N
9944-16C.
•Examine the sides of the Mixing Chamber,
P/N 23960-XX for scratches and/or material
build-up. Carefully, without scratching the seal
surfaces (sides), remove any accumulated
material. Solvent can be used to wash
accumulated material off of Chamber, Side
Blocks, etc. Keep Gun Chamber tilted toward
the ground so that solvent does not run back
into Gun. Certain solvents will attack O-Rings
on Chamber Shaft causing swelling and
deterioration of O-Rings.
•Place generous amounts of high quality, white
lithium grease in each side of the Gun Front
Housing and on the Side Block Seals.
•Use correct size Drill Bit to clean out the
Mixing Chamber exit passage. Use correct
size Drill Bit to clean the inlet side holes of the
Mixing Chamber taking care not to scratch the
Mixing Chamber’s polished surfaces.
(SEE CHART AT FRONT OF MANUAL)
•Re-assemble the Side Blocks and tighten
Screws securely. Grease should appear at
the tip of the Mixing Chamber.
NOTE
DO NOT open Air Switch on Gun because this will
purge grease from the Gun. The grease should be
allowed to remain in the Gun Overnight.
14

Daily Shut-Down
For experienced users
Once you have used the Gun with a product and
System, and you have become comfortable with
techniques on how all the variables are affecting your
operations and maintenance requirements, Daily,
Weekly, and Monthly Maintenance requirements can
be addressed specific to your operation.
1. Turn off Ball Valves, P/N PG-15-01, Trigger
Gun 5 - 6 times to purge residual PSI.
2. Drill out Chamber Insert Snout with correct
size drill bit for insert. (SEE CHART IN
FRONT OF MANUAL.)
3. Pull Slide Valve, P/N 16832-00 halfway back
to limit Air Purge.
4. Inject white Lithium Grease into zerk fitting
until a light mist of Grease is purged through
snout. Shut off Air Purge.
5. Remove Air Cap, P/N 23961-00 and set to
side. If solvent soaking is required, remove O-
Ring, P/N 23974-12 before soaking.
6. Remove insert, P/N 23977-XX and soak in
solvent until next usage.
Extended Shut-Down Procedure
This procedure should be performed when the system
is to be stored for an extended period of time (i.e.
winter shut-down, etc.).
Perform DAILY SHUT-DOWN PROCEDURE steps.
Daily Start-Up
1. Clean Snout Insert, P/N 23977-XX. Be sure
both, Face and Bottom Flat is Clean. Drill out
Snout Bore with correct size bit for Snout.
(SEE CHART IN FRONT OF MANUAL).
2. Clean inner bore of chamber. Drill out
Chamber Snout Inlet Bore as required.
3. Install Snout Insert.
4. Install Air Cap, P/N 23961-00 on to chamber.
Thread on finger tight until cap bottoms out.
Snug down with ½” wrench. This does not
require high torque. Over tightening can result
in chamber damage.
15

SERVICE
NOTE
Refer to specific system user manual for complete
system installation.
Parts Replacement Procedure
WARNING
Before attempting to perform any maintenance on this
Gun OR before removing Side Blocks, make certain
that both Gun Material Valves are in the fully OFF
positions!
Refer to Figures 4 and 5.
If Material Valves are on when Side Blocks are
removed, the Gun will quickly become encased in
urethane!
1. Read each procedure entirely before beginning
and refer to the illustrations as needed.
2. Flush and clean all chambers and passages as
they become accessible.
3. Clean all parts before assembly.
4. Replace all O-Rings and Seals with new parts
from the appropriate kit.
5. Inspect all parts for wear or damage and replace
as required with new GENUINE GlasCraft
REPLACEMENT PARTS from your authorized
GlasCraft distributor.
6. Inspect all threads for wear or damage and
replace as required.
7. Tighten all threaded parts securely, but not
excessively, upon assembly.
8. Lightly lubricate all O-Rings and threads with
lithium grease.
9. Check all springs for resilience. They should
return quickly to their original (new) length.
Routine Care
WARNING
Before attempting to perform any maintenance on this
Gun OR before removing Side Blocks, make certain
that both Gun Material Valves are in the fully OFF
positions!
Refer to Figures 4 and 5.
If Material Valves are on when Side Blocks are
removed, the Gun will quickly become encased in
urethane!
It is recommended that the following service be
performed on a daily basis.
1. Clean the Gun using a brush and an appropriate
clean solvent.
2. Inspect Side Block Seals, P/N 23973-00, making
certain they are clean and free of scratches, nicks
or foreign material. Clean and replace as
required.
3. Remove, clean or replace Filter Screen, P/N
23971-00.
4. Maintain a reasonable stock level of “wear” items
such as Seals and O-Rings. (see Service &
Repair Parts Kits listed in Parts & Illustrations
section.)
Piston Throw Adjustment
The P2 Gun Piston Throw is factory set and as a rule,
should not require adjustment. The Piston Throw
refers to how far back the Air Piston will travel when
the gun is triggered.
Proper Throw Adjustment will align the mixing
chamber side ports with the side block seal thru port.
There is a Set Screw that determines how far the
piston will travel before it stops.
To determine if the Throw is correct:
1. Turn Material Ball Valves, P/N PG-15-01 to
the OFF position.
2. Trigger Gun to Clear out residual PSI. in Side
Blocks.
16

3. Remove Side Blocks, P/N 23955-00 and P/N
23956-00.
4. Remove one of the Side Block Seal Housings,
P/N 23959-00 from Side Block.
5. Leave Seal, P/N 23973-00 in Housing and
rinse with suitable solvent.
6. Turn air ON to Gun, pull trigger to actuate Gun
into spray position, when gun pulls back, keep
in mind the purge air will not shut off. Turn Air
OFF at Slide Valve, P/N 16832-00 before
releasing trigger.
7. Place Seal / Seal Housing Assembly into Gun
Head so the face of Seal sets against the
chamber. Look thru the thru port of the Seal.
The Side Port of the Chamber should be at
the center , or slightly forward of the center
line. If this adjustment appears to be correct,
rotate the Seal Housing to ensure the Air Cap,
P/N 23961-00 is not contacting the Seal
Housing, P/N 23959-00. There should be no
contact between these two parts. Contact will
result in chamber damage.
8. Adjust Set Screw, P/N 17259-16F until
a. Side Port of chamber is center with or
forward of center of the thru port of
seal.
b. The Seal Housing can be rotated and
does not make contact with Air Cap.
9. Turn Air ON and retrigger gun, then shut Air
OFF before releasing trigger. Recheck Throw.
10. If the Set Screw feels loose, Remove it from
the Rear Cap, clean and apply non-permanent
thread lock to threads and reinstall, set
adjustment.
Installing P2 on Equipment other
than GlasCraft
WARNING
Do not place any part of the body in the path of the
material spray.
Do not point the gun at or near other personnel.
Do not look into the Mixing Chamber orifice at any
time.
Because of the hazardous materials used in this
equipment, it is recommended that the operator use an
air mask, goggles, protective clothing, and other safety
equipment as prescribed by current regulations,
recommendations of the chemical suppliers, and the
laws in the area where the equipment is being used.
Option #1
If original equipment does not require the use of an
unheated Whip Hose or Isolation Hose, the P2 can be
directly installed on to the Material Hose.
1. Remove OEM Fittings from OEM Gun,
typically these fittings are 1/8” NPT male.
2. Remove GCI fittings, P/N 8560-23 and P/N
PG-13 from PG-15-01 Ball Valves. GCI Ball
Valves are 1/8” NPT Female.
3. Install OEM Fittings into PG-15-01
NOTE
It is recommended to use a non-permanent
Thread Lock on the 1/8” NPT Threads to assist as
a sealant and keep fittings from twisting with gun
movement.
4. Install Gun on OEM Hoses
The Air Slide Valve, P/N 16832-00 is a ¼”
NPSM.
WARNING
Relieve ALL system fluid and air pressures according
to manufacturer’s instructions.
Option #2
1. Disconnect original equipment gun from fluid
and air hoses.
2. Remove swivel fittings from original equipment
gun.
17

3. Unscrew and remove two of the fittings from
one side of the Hose Junction Block, P/N
19434-00. (See Fig. 6)
19434-00
Fig. 6
4. Install Pipe Bushings, P/N 7966-31, into Hose
Junction Block.
5. Install the original equipment’s swivel fittings
into the corresponding pipe bushing on the
Hose Junction Block.
6. Attach Material Hose Fittings at one end of
Whip Hose, P/N 18006-00, to corresponding
fittings on Hose Junction block. (See Fig. 7)
18006-00
Fig. 7
7. Attach Air Connector Fitting, P/N 18101-01, to
Whip Hose Air Hose. Connect a clean, dry air
source to one end of the Air Connector Fitting.
Tighten securely. (See Fig. 8)
18101-01
Fig. 8
8. Attach hose fittings at other end of Whip Hose
to the Gun. (see Fig. 9)
ISOCYANATE
POLYOL
AIR
Fig. 9
9. Turn OFF Gun Air Switch by pulling up on
Slide Valve.
10. Attach Whip Hose Air Hose to Probler P2Gun
Air Switch. Tighten securely.
11. Turn OFF both Probler P2Gun Material Shut-
Off Valves.
WARNING
Before attempting to perform any maintenance on
this Gun OR before removing Side Blocks, make
certain that both Gun Material Valves are in the
fully OFF positions!
Refer to Figures 4 and 5.
If Material Valves are on when Side Blocks are
removed, the Gun will quickly become encased in
urethane!
12. Pressurize system according to
manufacturer’s instructions.
13. Refer to INITIAL START-UP PROCEDURE
section of this manual for complete Gun Start-
Up BEFORE spraying.
18